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JP2003047098

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DESCRIPTION JP2003047098
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
portable terminal device including a wireless telephone such as a portable telephone, a personal
handy phone system (PHS), a cordless telephone, a slave unit of a parent-child telephone, and a
PDA (Personal Digital Assistants). The present invention relates to a sound reproduction system
and method of a portable terminal device which realizes high-quality sound reproduction by
organically combining the portable terminal devices with each other or another audio device.
[0002]
2. Description of the Related Art In recent years, portable terminal devices such as mobile phones
have a remarkable penetration rate and are carried by many people when they go out. In
addition, with the increasing use of multimedia in portable terminal devices, portable terminal
devices have come to handle large-volume data such as images and music by increasing the builtin memory capacity, introducing storage media, and speeding up communication. .
[0003]
Japanese Patent Application Laid-Open Nos. 2000-49722 and 2000-78301 disclose techniques
of stereo reproduction using headphones of a portable terminal device.
[0004]
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1
However, in the above-mentioned prior art, only the listener with headphones can listen to stereo
music, sounds such as surround sound, but the surrounding people can not hear it. There is a
problem of
[0005]
[0005] In order to make it possible to listen to stereo music and surround sound also to persons
other than the listener, the portable terminal device alone must be provided with a plurality of
sound speakers for propagating sound in space, instead of headphones. However, due to the
small size of the portable terminal device, the crosstalk becomes large and another problem
arises that it is difficult to obtain the stereo effect.
[0006]
Furthermore, another problem arises in that another speaker must be connected to the portable
terminal device to listen to a sound such as surround sound.
Therefore, in view of the above problems, it is an object of the present invention to provide a
sound reproduction system and method of a portable terminal device for reproducing stereo
sound, surround sound, and home theater sound simply and comfortably. Do.
[0007]
SUMMARY OF THE INVENTION In order to solve the above problems, the present invention
relates to a portable terminal device for acquiring acoustic data, in cooperation with an acoustic
speaker for reproducing the acoustic data, and an acoustic device. And a sound data reproducing
unit for reproducing the sound data on the sound speaker.
[0008]
By this means, it is possible to simply and comfortably reproduce stereo sound, surround sound,
and home theater sound.
Furthermore, according to the present invention, in an audio reproduction system of a portable
terminal device for acquiring acoustic data, an acoustic speaker for reproducing the acoustic
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2
data, and an acoustic data reproduction unit for reproducing the acoustic data on the acoustic
speaker in cooperation with an audio device And a sound reproduction system of a portable
terminal device.
[0009]
By this means, as in the above-described invention, it becomes possible to simply and
comfortably reproduce stereo sound, surround sound, and home theater sound.
Preferably, the acoustic data is included in multimedia data.
By this means, multimedia data can be used and acquisition of sound sources becomes easy.
Preferably, the audio device is a portable terminal device. By this means, it is possible to
reproduce stereo sound, surround sound, and further home theater sound by a plurality of
mobile terminal devices.
[0010]
Preferably, the portable terminal device displays the acquired image data. By this means, it is
possible to use the portable terminal device as a home theater. Preferably, the audio device
comprises a display. By this means, it is possible to realize a home theater using a television and
a PC as audio equipment and using the display.
[0011]
Preferably, at least two of the displays display different images from one another. By this means,
it is possible to display a part of the image displayed on one screen alone or in a plurality, or to
enlarge and display it on the other screen. Preferably, the mobile terminal device has at least one
function of expansion and division of acquired data. By this means, data can be acquired by one
portable terminal device, and data can be transferred to another portable terminal device
through serial connection and parallel connection, so that the cost of data acquisition can be
reduced.
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3
[0012]
Preferably, the data includes acoustic data. The data acquired by this means enables
reproduction of stereo and surround sound with other portable terminal devices. Preferably, the
portable terminal device has a storage device for storing the data. By this means, regardless of
the line connection time, it becomes possible to listen to the sound any time and many times
when it is desired to listen to the sound.
[0013]
Preferably, the portable terminal device transmits the data stored in the storage device to at least
one of the audio devices. By this means, when it is desired to transfer stored data and listen to
stereo and surround sound, it is possible to listen to the sound any number of times. Preferably,
storage of the data in the storage device and transfer to the audio device are performed
simultaneously. By this means, reproduction can be performed simultaneously with storage in
the storage device.
[0014]
Preferably, the portable terminal device transmits the data to the audio device while reproducing
the data. By this means, transfer can be performed simultaneously with reproduction. Preferably,
the audio device reproduces while receiving the transmitted data. By this means, reception and
simultaneous reproduction become possible. Preferably, the reproduction operation of the
portable terminal device and the reproduction operation of the audio device are performed
jointly. Furthermore, preferably, at least two of the mobile terminal devices obtain different data,
respectively transfer them separately to at least two of the audio devices, and transfer the
respective data obtained by the mobile terminal device and the audio devices. The respective data
are jointly reproduced. By this means, it is possible to reproduce stereo and surround sound with
a reduced load on the portable terminal device that acquires data.
[0015]
Preferably, the data is transmitted to and received from the portable terminal device by radio or
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wire. By this means, it is possible to eliminate the cable by radio when the wired cable is an
obstacle such as passing. Preferably, the destination of the data is a data delivery service. By this
means, acquisition of various sound sources becomes easy.
[0016]
Preferably, the data is provided to the portable terminal device by a storage device or storage
medium. By this means, if the sound source is acquired once, repeated reproduction is possible.
Preferably, the portable terminal device reproduces the data in consideration of a delay time
caused by transmission of the data to the audio device. By this means, the sound quality can be
improved.
[0017]
Preferably, at least two of the portable terminals are connected by cables or wirelessly to
different outputs of the data separation unit. By this means, it becomes possible to obtain the
sound source by the separation device, and it is possible to eliminate the cable by radio when the
wired cable is an obstacle such as passing. Preferably, the separation device inputs and separates
data from an information device or an audio device and transfers the data to the mobile terminal
device. By this means, it is possible to secure diversity in acquisition of sound sources.
[0018]
Preferably, the portable terminal device is supplied with power from the data acquisition source
at the time of data acquisition. By this means, it is possible to cope with the power shortage.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION The present invention cooperates with a
portable terminal device and another audio device including the portable terminal device, and
delivers data distribution service as an acoustic source, an internetwork, a store, a public facility,
etc. To download and install multimedia data including sound source from information
equipment such as downloading from stations installed in CD, DVD, direct purchase of memory
media, rental, audio-visual equipment such as headphone stereo, personal computer, etc. Stereo
sound, surround sound, reproduction of home theater sound, and even image display are enabled
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as follows.
[0020]
Hereinafter, embodiments of the present invention will be described with reference to the
drawings.
FIG. 1 is a view showing an example of receiving individually in the schematic configuration of a
first embodiment of a sound reproduction system of a portable terminal device according to the
present invention. First, as shown in the figure, the first embodiment of the sound reproduction
system of the portable terminal device is composed of five portable terminal devices 1a, 1b, 1c,
1d and 1e.
[0021]
Five portable terminal devices 1a, 1b, 1c, 1d and 1e are arranged around the listener 5 to
reproduce surround sound including low frequency sound. That is, among the five portable
terminal devices 1a, 1b, 1c, 1d and 1e installed at mutually separated positions, the sound FL of
the front left is reproduced from the portable terminal device 1a, and the front side from the
portable terminal device 1b The sound FR of the light is reproduced, the sound RL of the rear left
is reproduced from the portable terminal device 1c, the sound RR of the rear light is reproduced
from the portable terminal device 1d, and the low frequency sound in the low frequency range is
transmitted from the portable terminal 1e. LOW is played back.
[0022]
The portable terminal devices 1a, 1b, 1c, 1d and 1e individually receive the received radio waves
22a, 22b, 22c, 22d and 22e through the public line respectively. The received radio waves 22a,
22b, 22c, 22d and 22e are radio waves transmitted from a data distribution service or the like
and including surround sound sounds FL, FR, RL, RR sound data, and low frequency band sound
data.
[0023]
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The portable terminal devices 1a, 1b, 1c, 1d and 1e reproduce the received acoustic data in real
time while receiving the received radio waves 22a, 22b, 22c, 22d and 22e, respectively. In
addition, it is desirable to use what has the speaker for acoustics which was excellent in the bass
characteristic as the portable terminal device 1e. Next, a schematic configuration of the first
modification of the first embodiment will be described. The first modification of the first
embodiment is configured by portable terminal devices 1a, 1b, 1c and 1d in which the number is
reduced to four by deleting the portable terminal device 1e from the configuration of the first
embodiment shown in FIG. Each of them is received, reproduced, and reproduced as surround
sound. That is, the four portable terminal devices reproduce the received acoustic data in real
time while receiving the received radio waves 22a, 22b, 22c and 22d.
[0024]
The received radio waves 22a, 22b, 22c and 22d are radio waves transmitted from a data
distribution service or the like and including surround sound sounds FL, FR, RL and RR sound
data. In addition, when the data distribution service prepares, for example, a front dedicated
audio channel and a rear dedicated audio channel in surround sound, the portable terminal
devices 1a and 1b receive the sound FL and the sound FR from the front dedicated audio
channel, respectively. can do.
[0025]
Next, a schematic configuration of a second modification of the first embodiment will be
described. In the second modification of the first embodiment, the portable terminal devices 1a,
1b and 1e are obtained by reducing the number of portable terminal devices 1c and 1d from the
configuration of the first embodiment shown in FIG. It is configured, each receiving, playing, and
reproducing stereo sound including low-pass sound. That is, the three portable terminal devices
reproduce the received acoustic data in real time while receiving the received radio waves 22a,
22b and 22e respectively.
[0026]
The received radio waves 22a, 22b and 22e are radio waves transmitted from a data distribution
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7
service or the like and including the sound FL of the surround sound, FR, and sound data in the
low frequency range. In addition, when the data distribution service prepares, for example, a
stereo sound dedicated channel or the like, the portable terminal devices 1a and 1b can
respectively receive L sound and R sound from the stereo sound dedicated channel.
[0027]
Next, a schematic configuration of a third modification of the first embodiment will be described.
In the third modification of the first embodiment, the portable terminal devices 1c and 1d are
deleted from the configuration of the first embodiment shown in FIG. 1, and the number is
further reduced to two. It is configured, each receives and plays, and reproduces stereo sound.
That is, the two portable terminal devices reproduce the received acoustic data in real time while
receiving the received radio waves 22a and 22b respectively.
[0028]
The received radio waves 22a and 22b are radio waves transmitted from a data distribution
service or the like and including sound data of the sounds FL and FR of the surround sound. In
addition, when the data distribution service prepares, for example, a stereo sound dedicated
channel or the like, the portable terminal devices 1a and 1b can respectively receive L sound and
R sound from the stereo sound dedicated channel. Although the combination of up to five mobile
terminal devices has been described in the above example, the present invention is not limited to
this, and it is possible to reproduce sound with a combination of a larger number of mobile
telephone devices. In addition, it is possible to display an image along with the reproduction of
sound on each portable terminal device to be combined.
[0029]
FIG. 2 is a block diagram showing a schematic configuration of each of the portable terminal
devices 1a, 1b, 1c, 1d and 1e of FIG. 1 having the same configuration. As shown to this figure, the
antenna 101 is provided in each of the portable terminal devices 1a, 1b, 1c, 1d, and 1e, and the
antenna 101 transmits / receives an electromagnetic wave with a base station. The transmitting
and receiving unit 102 is connected to the antenna 101, and the transmitting and receiving unit
102 demodulates the reception signal from the antenna 101 into demodulation data, modulates
the modulation data into a transmission signal, and outputs the transmission signal to the
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8
antenna 101.
[0030]
A control unit 103 is connected to the transmission / reception unit 102, and the control unit
103 decodes the demodulated data input from the transmission / reception unit 102, encodes
the input signal, and forms modulation data. A display unit 104 is connected to the control unit
103, and the display unit 104 displays predetermined data such as a telephone number and a
function, and simultaneously or alternatively displays the received image data on the screen.
[0031]
An input unit 105 is connected to the control unit 103, and the input unit 105 makes a display
operation request of the display unit 104, a transmission request, etc., in particular, a multimedia
data data distribution service reception request, etc. A transmitter 106, a receiver 107, and the
like are connected to the control unit 103. In the transmitter 106, the voice is converted into an
analog electric signal, and the converted analog electric signal is encoded into digital modulation
data by the control unit 103.
[0032]
In the receiver 107, the control unit 103 converts an analog electrical signal decoded from
digital demodulation data into voice. Further, the control unit 103 is provided with an acoustic
data reproduction unit 108. The acoustic data reproduction unit 108 receives multimedia data
from a data distribution service, an information device or the like, and demodulates digital
acoustic data into an analog electric signal. Decrypt to
[0033]
Furthermore, an acoustic speaker 109 is connected to the acoustic data reproduction unit 108 of
the control unit 103, and the acoustic speaker 109 is an analog electrical signal decoded from
digital acoustic data by the acoustic data reproduction unit 108. Convert to sound and play. FIG.
3 is a view for explaining the reproduction operation of the first embodiment in FIG. As shown in
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9
this figure (a), it is assumed that multimedia data such as sound FL, FR, RL, RR, L, R, low band
sound LOW, high band sound HIGH, and images are distributed from data distribution service
etc. Do.
[0034]
As shown in FIG. 6 (b), in the portable terminal device 1a, the acoustic data of the sound FL
shown in FIG. 6 (a) is received via the received radio wave 22a and decoded by the acoustic data
reproduction unit 108. Then, the sound FL is reproduced from the sound speaker 109, and
further, the image data shown in FIG. 6A is received and displayed on the screen. Similarly, as
shown in FIG. 6C, the portable terminal 1b reproduces the sound FR and the image data is
displayed on the screen.
[0035]
Similarly, as shown in FIG. 7D, the portable terminal 1c reproduces the sound RL and the image
data is displayed on the screen. Similarly, as shown in the figure (e), in the portable terminal
device 1d, the sound RR is reproduced and the image data is displayed on the screen. Similarly,
as shown in (f) of the figure, in the portable terminal device 1e, the sound LOW is reproduced,
and the image data is displayed on the screen.
[0036]
The same or each dedicated image may be captured and displayed on a part or all of the screens
of the portable terminal devices 1a, 1b, 1c, 1d and 1e. Furthermore, a part of the image displayed
on the screen of a certain portable terminal device may be displayed on the screen of another
portable terminal device alone or in plurality or enlarged. Also, the plurality of images can be
provided from a data distribution service. Also, the image may be a moving image.
[0037]
In this manner, it is possible to reproduce surround sound with excellent bass characteristics to
the listener 5 while displaying an image including a moving image, and a simple home theater
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10
can be realized. Furthermore, when the image is not displayed on the screen of the portable
terminal device, only the sound data is received without receiving the image, and the surround
sound can be reproduced to the listener 5. Next, the schematic reproduction operation of the first
modified example of the first embodiment configured by the portable terminal devices 1a, 1b, 1c
and 1d will be described using FIG. ,
[0038]
As shown in FIGS. 3 (b), (c), (d) and (e), reception and reproduction are performed in the portable
terminal devices 1a, 1b, 1c and 1d. The image display is performed in the same manner as the
reproduction operation of the first embodiment in FIG. In this way, it is possible to enjoy
surround sound while displaying an image including a moving image. Furthermore, it is also
possible to reproduce surround sound that has received only sound data. Next, the schematic
reproduction operation of the second modification of the first embodiment configured by the
portable terminal devices 1a, 1b and 1e will be described using FIG. As shown in FIGS. 3B, 3C,
and 3F, the mobile terminal devices 1a, 1b, and 1e perform reception and reproduction.
[0039]
The display of the image is the same as that of the reproduction operation of the first
embodiment in FIG. In this way, it is possible to enjoy stereo sound with excellent bass
characteristics while displaying an image including a moving image. Furthermore, it becomes
possible to reproduce stereo sound with excellent bass characteristics, which has received only
sound data.
[0040]
Next, with reference to FIG. 3, the general reproduction operation of the third modification of the
first embodiment constituted by the portable terminal devices 1a and 1b will be described. As
shown in FIGS. 3B and 3C, the mobile terminal devices 1a and 1b perform reception and
reproduction.
[0041]
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11
The display of the image is the same as that of the reproduction operation of the first
embodiment in FIG. In this way, it is possible to enjoy stereo sound while displaying an image
including a moving image. Furthermore, stereo sound reproduction is possible by receiving only
sound data.
[0042]
Therefore, according to the present invention, since the portable terminal device is of the nature
of being carried at all times when going out, stereo sound reproduction and surround while
displaying an image including a moving picture can be easily performed even at the outside.
Sound reproduction becomes possible, and further, a simple home theater can be realized. FIG. 4
is a view showing a schematic configuration of a second embodiment of the sound reproduction
system of the portable terminal device according to the present invention.
[0043]
As shown in the figure, the second embodiment of the sound reproduction system of the portable
terminal apparatus is configured by adding a television (TV) 120 to the first embodiment. Center
sound data and image data are received and reproduced from the television 120 between the
portable terminal device 1a and the portable terminal device 1b.
[0044]
The television 120 may function as a treble center or may function as a vocal or speech center.
In addition, it is possible to display the same or different images on part or all of the portable
terminal devices 1a, 1b, 1c, 1d, and 1e, and the television 120.
[0045]
Next, schematic configurations of first to third modified examples of the second embodiment will
be described. The first to third variants of the second embodiment are configured by adding a
television 120 to the schematic configuration of the first to third variants of the first embodiment
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in FIG.
[0046]
In the first to third variants of the second embodiment, the television 120 may reproduce the
low-frequency sound LOW in the low frequency range instead of the center sound. Next, a
schematic configuration of a fourth modified example of the second embodiment will be
described. The fourth modification of the second embodiment is a portable terminal device in
which the portable terminal devices 1a and 1b are deleted from the configuration of the second
embodiment shown in FIG. 4 when the television 120 can reproduce stereo sound, and the
number is reduced. It consists of 1c, 1d, 1e, which are received and reproduced respectively, and
reproduces surround sound with excellent bass characteristics.
[0047]
Next, a schematic configuration of the fifth modification of the second embodiment will be
described. In the fifth modification of the second embodiment, when the television 120 can
reproduce stereo sound, the portable terminal devices 1a, 1b and 1e are deleted from the
configuration of the second embodiment shown in FIG. Terminal devices 1c and 1d are
respectively configured to receive and reproduce, and reproduce surround sound.
[0048]
FIG. 5 is a view showing a schematic configuration of a sixth modification of the second
embodiment. As shown in the figure, the sixth modification of the second embodiment of the
sound reproduction system of the portable terminal device comprises a portable terminal device
1 a and a television (TV) 120. The portable terminal device 1a and the television 120 are
arranged in the same place and reproduce stereo sound and images.
[0049]
That is, of the portable terminal device 1a and the television 120 installed at positions away from
each other, the sound L of stereo sound and the image are received and reproduced from the
portable terminal device 1a, and the stereo from the television 120 is performed. Sound sound R,
an image is received and reproduced.
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[0050]
The portable terminal device 1a and the television 120 can display the same or different images.
In addition, the image display may be performed only on the television 120, and the portable
terminal device 1a may be dedicated to sound reproduction. FIG. 6 is a diagram for explaining a
television in the reproduction operation of the second embodiment in FIG. The configuration of
the multimedia data to be distributed and the data processing in the portable terminal devices 1a,
1b, 1c, 1d and 1e are the same as those in FIG. 3 showing the reproduction operation of the first
embodiment in FIG.
[0051]
The reproducing operations of the second and third embodiments of the present invention are
the same as those of the first and third embodiments of the first embodiment shown in FIG. And
the reproduction operation of the television 120 is added.
[0052]
As shown in the figure, in the television 120, the sound data and the image data of the high band
sound HIGH as the sound center shown in FIG. 3A are received, and the high band sound HIGH is
reproduced as the TV-OUT. And the image is played back on the screen.
[0053]
In this way, the five existing portable terminal devices 1a, 1b, 1c, 1e, and the television 120
easily constitute a stereo sound reproduction system together with an image, and a immersive
home theater is constituted. Be done.
Furthermore, separate images may be displayed on some or all of the mobile terminal devices 1a,
1b, 1c, 1e, and the television 120.
Also, the plurality of images can be provided from a data distribution service. Also, the image
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may be a moving image.
[0054]
With this configuration, it is possible to compensate for the shortage of portable terminal devices
and also to use a large screen. Further, while viewing an existing television program, surround
sound data synchronized with the program can be separately received and reproduced from the
dedicated service by the portable terminal device. Next, the reproduction operation of the fourth
modification of the second embodiment configured by the portable terminal devices 1c, 1d, 1e
and the television 120 will be described using FIGS. 3 and 6. FIG. As shown in FIGS. 3 (d), (e) and
(f), reception and reproduction are performed in the portable terminal devices 1c, 1d and 1e.
[0055]
Furthermore, as shown in FIG. 6, in the television 120, the surround sound data FL, FR and image
data shown in FIG. 3A are received, and the sound FL and the sound FR are reproduced as TVOUT. , The image is displayed on the screen. In this way, while reducing the number of portable
terminal devices and displaying an image including a moving image, it becomes possible to
reproduce surround sound with excellent bass characteristics, and a simple home theater is
realized.
[0056]
Next, with reference to FIGS. 3 and 6, the reproduction operation of the fifth modification of the
second embodiment, which comprises the portable terminal devices 1c and 1d and the television
120, will be described. As shown in FIGS. 3D and 3E, the mobile terminal devices 1c and 1d
perform reception and reproduction. Further, as shown in FIG. 6, in the television 120, the
surround sound data FL, FR and image data shown in FIG. 3A are received, the sound FL and the
sound FR are reproduced as TV-OUT, and the image is displayed on the screen. Is displayed.
[0057]
Thus, while reducing the number of portable terminal devices and displaying an image including
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15
a moving image, it is possible to reproduce surround sound, and a simple home theater can be
realized. Next, a schematic reproduction operation of the sixth modification of the second
embodiment of FIG. 5 will be described with reference to FIGS. 3 and 6. FIG.
[0058]
As shown in FIG. 3B, the portable terminal 1a performs reception and reproduction. In the
television 120, the sound data and image data of the sound R shown in FIG. 3A are received, and
as shown in FIG. 6, the sound R is reproduced as the TV-OUT, and the image is reproduced on the
screen.
[0059]
In this way, by constructing the stereo sound reproduction system together with the image easily
with only one existing portable terminal device 1a and the television 120, the shortage of
portable terminal devices can be compensated and a large screen can be obtained. It is also
possible to use Also, while watching a television program, it is possible to separately receive
surround sound data synchronized with the television program from a dedicated service.
[0060]
FIG. 7 is a diagram showing an example of serial connection in the schematic configuration of the
third embodiment of the sound reproduction system of the portable terminal device according to
the present invention. As shown in the figure, the third embodiment of the audio reproduction
system of the portable terminal device comprises five portable terminal devices 1a, 1b, 1c, 1d
and 1e, which are arranged around the listener 5, Play surround sound. Surround sound data FL,
FR, RL, RR, low sound LOW, high sound HIGH sound data and image data are received only by
the mobile terminal device 1a via the received radio wave 22a, and sound FL, FR, RL, RR is
received. The low acoustic LOW and high acoustic HIGH acoustic data and image data are
sequentially transferred to the portable terminal devices 1b, 1c, 1d and 1e via the cables 21a,
21b, 21c and 21d.
[0061]
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When the portable terminal device 1e for reproducing LOW sound is excellent in the bass
characteristic, it is possible to realize the sound with better bass. Also, instead of the portable
terminal device 1e, the portable terminal device 1c is connected to an external speaker, and the
speaker outputs LOW sound received from the portable terminal device 1c. As a result, it is
possible to compensate for the shortage of the number of portable terminal devices, and it is
further advantageous to realize listening to stereo sound and surround sound with excellent bass
characteristics.
[0062]
At this time, by interposing an amplifier between the portable terminal device 1c and the external
speaker, it is possible to realize surround sound which is more excellent in low-pass sound. Next,
a schematic configuration of the first modification of the third embodiment will be described. The
first modified example of the third embodiment is configured by portable terminal devices 1a, 1b,
1c and 1d in which the portable terminal device 1e is deleted from the configuration of the third
embodiment shown in FIG. 7 and the number is reduced to four. The received radio waves
received by one mobile terminal device are sequentially transferred to other mobile terminal
devices connected in series to reproduce surround sound.
[0063]
At this time, sound data excluding the low sound LOW, FR, RL, RR, high sound high sound data,
and image data are received through the received radio wave 22a, as compared with the third
embodiment. Next, a schematic configuration of a second modification of the third embodiment
will be described. The second modified example of the third embodiment is a portable terminal
device 1e which is obtained by deleting the portable terminal devices 1c and 1d from the
configuration of the third embodiment shown in FIG. 7, reducing the number, and connecting the
portable terminal device 1e to the portable terminal device 1b. The terminal device 1a, 1b, 1e is
configured to transfer received radio waves received by one portable terminal device to another
serially connected portable terminal device, and reproduce stereo sound including low sound.
[0064]
Also, instead of the portable terminal device 1e, the portable terminal device 1b can be
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connected to an external speaker, and the speaker can output LOW sound received from the
portable terminal device 1b. This makes it possible to compensate for the shortage of the number
of portable terminal devices, and it is further advantageous to realize listening to stereo sound
with excellent bass characteristics. At this time, by interposing an amplifier between the portable
terminal device 1 b and the external speaker, it is possible to realize stereo sound with better
bass characteristics.
[0065]
At this time, compared to the third embodiment, the sound RL of the surround sound, the sound
FL excluding the sound RR, the sound FR, and the low sound LOW are received through the
received radio wave 22a. Furthermore, sound L and sound R may be received instead of sound FL
and sound FR.
[0066]
Next, the schematic configuration of a third modification of the third embodiment will be
described with reference to FIG. In the third modification of the third embodiment, the portable
terminal devices 1a and 1b are formed by removing the portable terminal devices 1c, 1d and 1e
from the configuration of the third embodiment and reducing the number and received by the
portable terminal device 1a. The received radio waves are transferred to the other portable
terminal device 1b connected in series to reproduce stereo sound.
[0067]
At this time, as compared with the third embodiment, the low sound LOW, the sound RL of the
surround sound and the sound RR excluding the sound RR are received through the received
radio wave 22a. Instead of the sound FL and the sound FR, the sound L and the sound R may be
received. FIG. 8 is a view showing a schematic configuration of a fourth modification of the third
embodiment in FIG.
[0068]
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As shown in the figure, the portable terminal 1a receives the sound FL, the sound RL, and the low
sound LOW, and the portable terminal 1b receives the sound FR and the sound RR, respectively,
and the portable terminal 1a receives the portable terminal 1c. , 1e may transfer the sound RL
and the low sound LOW, and transfer the sound RR from the portable terminal 1a to the portable
terminal 1d. As a result, transfer methods from a portable terminal device to another portable
terminal device are newly added, and the diversity of combination methods of portable terminal
devices is increased, and the load of data processing per portable terminal device can be reduced.
[0069]
Also, the portable terminal 1a may be connected to a channel for distributing only the sounds FL
and RL and low acoustic LOW of the data distribution service, and the portable terminal 1b may
be connected to a channel for distributing only the sounds FR and RR. it can. In addition to the
above, there may be three or more other portable terminal devices serially connected to the
portable terminal device that receives data from the data distribution service, or there may not be
a serial connection. Three or more portable terminal devices may be used to receive data.
[0070]
FIG. 9 is a block diagram showing a schematic configuration of each of the portable terminal
devices 1a, 1b, 1c, 1d and 1e of FIGS. 7 and 8 which have the same configuration. As shown in
this figure, compared with FIG. 2, a signal terminal 112A and a signal receiving terminal 112B
connected to the acoustic data reproducing unit 108 are added to each of the portable terminal
devices 1a, 1b, 1c, 1d and 1e. The cables 21a, 21b and 21c are connected to the signal receiving
terminal 112A and the signal receiving terminal 112B.
[0071]
As one example, in FIG. 7, the cable 21a is connected between the signal terminal 112A of the
portable terminal 1a and the signal receiving terminal 112B of the portable terminal 1b, and the
signal terminal 112A of the portable terminal 1b and the portable terminal The cable 21b is
connected between the signal receiving terminals 112B of the device 1c, and the cable 21c is
connected between the signal receiving terminal 112A of the portable terminal 1b and the signal
receiving terminal 112B of the portable terminal 1c.
10-05-2019
19
[0072]
FIG. 10 is a view for explaining the reproducing operation of the third embodiment of FIG.
As shown in this figure (a), it is assumed that multimedia data such as sound FL, FR, RL, RR, L, R,
low band sound LOW, high band sound HIGH, and images are distributed from data distribution
service etc. Do. As shown in FIG. 6B, in the mobile terminal device 1a, the sound data of the
sounds FL, FR, RL, RR and LOW shown in FIG. 5A and further image data are received via the
received radio wave 22a. Ru.
[0073]
As shown in FIG. 6C, the sound data reproducing unit 108 divides the sound data of the sound FL
and the image data from the received data, and decodes the sound data to reproduce the sound
FL from the sound speaker 109. Image data is reproduced on the screen 1a. As shown in this
figure (d), the sound data reproduction unit 108 divides sound data of sound FR, RL, RR, LOW
and image data from received data, and divides the image data from the mobile terminal 1a to
the mobile terminal 1b from the cable 21a. Transfer is done via
[0074]
Similarly, as shown in the figures (e) and (f), the portable terminal 1b reproduces the sound FR
and the image data among the received data, and the sound data of the sounds RL, RR and LOW,
The image data is transferred to the portable terminal 1 d via the cable 21 b. Similarly, as shown
in the figures (g) and (h), the portable terminal device 1d reproduces the sound RR and the image
data among the reception data, and the sound data of the sound RL and LOW, the image data, the
cable It transfers to the portable terminal device 1c via 21c.
[0075]
Similarly, as shown in the figures (i) and (j), the portable terminal device 1c reproduces the sound
RL and the image data among the received data, and the LOW sound data and the image data are
cabled. The data is transferred to the portable terminal device 1e through 21d, and the portable
10-05-2019
20
terminal device 1e reproduces the received LOW sound data and image data. In this way, the
connection with the data distribution service, which is the sound data providing service site, is
made one line and the other mobile terminal device is made serial connection, thereby avoiding
congestion of the communication line and reducing the communication cost. It becomes possible
to listen to surround sound excellent in bass characteristics.
[0076]
When an image is not displayed on the screens of the portable terminal devices 1a, 1b, 1c, 1d,
and 1e, it is possible to receive only the acoustic data without receiving the image. The display of
the image is the same as in the first embodiment. Next, with reference to FIG. 10, an outline
reproduction operation of the first modified example of the third embodiment constituted by the
serially connected portable terminal devices 1a, 1b, 1c and 1d will be described.
[0077]
As shown in FIGS. 10 (c), (e), (i) and (g), reproduction is performed by the portable terminal
devices 1a, 1b, 1c and 1d. The image display is performed in the same manner as the
reproduction operation of the first embodiment in FIG. In this way, it is possible to enjoy
surround sound while displaying an image including a moving image. In addition, when an image
is not displayed on the screen of portable terminal device 1a, 1b, 1c, 1d, it is possible not to
receive an image but to receive only acoustic data.
[0078]
Next, a schematic configuration of a second modification of the third embodiment constituted by
the serially connected portable terminal devices 1a, 1b and 1e will be described with reference to
FIG. As shown in FIGS. 10 (c), (e) and (j), reproduction is performed by the portable terminal
devices 1a, 1b and 1e. The display of the image is the same as the description of the
reproduction operation of the first embodiment in FIG. In this way, it is possible to enjoy stereo
sound with excellent bass characteristics while displaying an image including a moving image.
[0079]
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21
When an image is not displayed on the screens of the portable terminal devices 1a, 1b and 1e, it
is possible to receive only the acoustic data without receiving the image. Next, with reference to
FIG. 10, an outline reproduction operation of the third modification of the third embodiment
constituted by the serially connected portable terminal devices 1a and 1b will be described. As
shown in FIGS. 10 (c) and 10 (e), reproduction is performed by the portable terminal devices 1a
and 1b. The display of the image is performed in the same manner as the reproduction operation
of the first embodiment in FIG. In this way, it is possible to enjoy stereo sound while displaying
an image including a moving image. In addition, when not displaying an image on the screen of
portable terminal device 1a, 1b, it is possible not to receive an image but to receive only acoustic
data.
[0080]
FIG. 11 is a view for explaining the reproducing operation of the fourth modification of the third
embodiment in FIG. As shown in this figure (a), it is assumed that multimedia data such as sound
FL, FR, RL, RR, L, R, low band sound LOW, high band sound HIGH, and images are distributed
from data distribution service etc. Do. As shown in FIG. 6B, the portable terminal device 1a
receives the sound data of the sounds FL, RL, and LOW, and the image data shown in FIG. 4A via
the received radio wave 22a.
[0081]
As shown in FIG. 6C, the sound data reproduction unit 108 divides the sound data of sound FL
and the image data from the received data, divides the image data, decodes the sound data, and
reproduces the sound FL from the sound speaker 109. Image data is reproduced on the screen
1a. As shown in the figure (d), the sound data reproduction unit 108 divides sound data of RL
and LOW, and image data from received data and transfers them from the portable terminal 1a
to the portable terminal 1c via the cable 21d. To be done.
[0082]
Similarly, as shown in the figures (e) and (f), the portable terminal 1c reproduces the sound RL
and the image data among the reception data, and the sound data of the sound LOW and the
image data are It transfers to the portable terminal device 1e via the cable 21e. The portable
10-05-2019
22
terminal device 1e reproduces the transferred sound data of sound LOW and the image data.
Similarly, as shown in the figure (g), in the portable terminal device 1b, the sound data of the
sounds FR and RR shown in the figure (a) and further the image data are received via the
received radio wave 22b. Similarly, as shown in the drawings (h) and (i), the portable terminal 1b
reproduces the sound FR and the image data among the reception data, and the sound data of the
sound RR and the image data are transmitted through the cable 21b. It transfers to the portable
terminal device 1d. The portable terminal 1 d reproduces the sound data and image data of the
sound RR transferred.
[0083]
In this manner, it is possible to enjoy excellent surround sound while displaying an image
including a moving image. In addition, when not displaying an image on the screen of portable
terminal device 1a, 1b, 1c, 1d, and 1e, it is possible not to receive an image but to receive only
acoustic data.
[0084]
FIG. 12 is a view showing another example of serial connection in the schematic configuration of
the fourth embodiment of the sound reproduction system of the portable terminal device
according to the present invention. As shown in the figure, in the fourth embodiment, a serial
connection of portable terminal devices 1a, 1b, 1c, 1d and 1e and a television 120 are used, and
a serial connection of portable terminal devices 1a, 1b, 1c, 1d, The configuration of 1e is the
same as the description of FIG. 7, and the television 120 is the same as the configuration of the
television 120 in FIG. 4, and reproduces high-range sound HIGH and image data. Note that the
image data can also be acquired from radio waves of television broadcasting. At that time, the
data delivery service delivers data synchronized with the television broadcast.
[0085]
At this time, a television (TV) views a program broadcasted in real time, and a portable terminal
device distributes a television (TV) program to be delivered in synchronization with the television
(TV) program. It is also possible to reproduce supplemental data.
[0086]
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23
In the first to fourth variants of the fourth embodiment, the television 120 shown in the
schematic configuration of the fourth embodiment of FIG. 12 and the five portable terminal
devices 1a, 1b, 1c, 1d and 1e are shown. As in the first to fourth modified examples of the third
embodiment in FIG. 8 and FIG. 8, the portable terminal is deleted sequentially to reduce the
number or change the wiring.
At this time, the low-frequency low-range sound LOW may be reproduced from the television
120 in place of the center sound in the configuration of the first modification and the third and
fourth modifications of the fourth embodiment.
[0087]
Next, the configuration of the fifth modification of the fourth embodiment will be described with
reference to FIG. In the fifth modification of the fourth embodiment, when the television 120 can
reproduce stereo sound, portable terminal devices 1c, 1d, which are reduced in number by
deleting the portable terminal devices 1a and 1b from the configuration of the fourth
embodiment. With the 1e configuration, it is possible to reproduce surround sound with excellent
bass characteristics. At this time, the portable terminal device 1c receives the received radio
wave 22a and sequentially transfers the received radio wave 22a to the portable terminal devices
1d and 1e.
[0088]
The configuration of a sixth modification of the fourth embodiment will be described next with
reference to FIG. In the sixth modification of the fourth embodiment, when the television 120 can
reproduce stereo sound, the portable terminal devices 1c, 1b, and 1e are deleted from the
configuration of the fourth embodiment to reduce the number of portable terminal devices 1c,
Surround sound can be reproduced with the 1d configuration. At this time, the portable terminal
device 1c receives the received radio wave 22a and transfers it to the portable terminal device
1d.
[0089]
10-05-2019
24
Next, since the reproduction operation of the fourth embodiment is the addition of the
reproduction operation of the television 120 to the reproduction operation of the third
embodiment shown in FIG. 10, the description will be omitted. Similarly, regarding the
reproduction operation of the first to fourth modified examples of the fourth embodiment, the
reproduction operation of the television 120 is added to the reproduction operation of the first to
fourth modified examples of the third embodiment. , I omit the explanation.
[0090]
Similarly, the reproducing operation of the fifth and sixth modifications of the fourth
embodiment is substantially the same as that of the second and third modifications of the fourth
embodiment, so the description thereof will be omitted. Note that not only the television 120
(TV) but also the screen of the mobile terminal device may display an image exclusively provided
from the data service, for example. The image may be the same as a television (TV) or may be
separate from and complementary to a television (TV).
[0091]
In this manner, the connection with the data distribution service, which is the sound data
providing service site, is made into one line, and the serial connection with other portable
terminal devices is avoided, thereby avoiding congestion of the communication line and reducing
the communication cost. As a result, it becomes possible to view a home theater with a low
sound, high frequency sound and a good surround sound field. The television 120 may output
the sounds FL and FR, and the portable terminal 1 c and 1 d may output the sounds RL and RR.
Thereby, a simple home theater is realized.
[0092]
FIG. 13 is a modification of FIG. 9 having a serial configuration, and is a block diagram showing a
schematic configuration of each of the portable terminal devices 1a, 1b, 1c, 1d and 1e when the
influence of transfer delay time can not be ignored. is there. As shown in the figure, compared to
FIG. 9, a delay unit 115 is provided in the acoustic data reproduction unit 108 for each of the
portable terminal devices 1a, 1b, 1c, 1d and 1e, and the delay unit 115 receives The
reproduction of the sound data is delayed for a fixed time.
10-05-2019
25
[0093]
In the example of transfer from the portable terminal device 1a to the portable terminal device
1b, the transfer delay time τ1 is set in the delay unit 115 of the acoustic data reproduction unit
108. As an example, transfer delay time τ1a from portable terminal device 1a to portable
terminal device 1d, transfer delay time τ1b from portable terminal device 1b to portable
terminal device 1d, transfer delay time from portable terminal device 1c to portable terminal
device 1d τ1c Is estimated.
[0094]
The transfer delay time τ 1 a is set in the delay unit 115 of the portable terminal device 1 a, the
transfer delay time τ 1 b is set in the delay unit 115 of the portable terminal device 1 b, and the
transfer delay time τ 1 c in the delay unit 115 of the portable terminal device 1 c. Is set.
Hereinafter, the reproduction operation at the time of transfer delay occurrence regarding the
acoustic data reproduction unit 108 of the portable terminal devices 1a, 1b, 1c, 1d, 1e will be
described.
[0095]
FIG. 14 is a flow chart for explaining an example of reproduction operation at the time of transfer
delay occurrence concerning the acoustic data reproduction unit 108 in the portable terminal
devices 1a, 1b, 1c, 1d and 1e of FIG. As shown in FIG. 6A, in step S321, the portable terminal
device 1a outputs the sound data of sounds FL, FR, RL, RR, and LOW received from the public
line and demodulated to the sound data reproduction unit 108.
[0096]
In step S 322, the sound data of the sound FL is divided from the sound data of the received
sounds FL, FR, RL, RR, and LOW by the sound data reproducing unit 108 and subjected to delay
processing by the delay unit 115. In step S323, the divided sound data of the other sounds FR,
RL, RR, and LOW are transmitted from the sound data reproducing unit 108 of the portable
terminal device 1a via the signal terminal 112A, the cable 21a, and the signal receiving terminal
10-05-2019
26
112B. It is transferred to the acoustic data reproduction unit 108 of the portable terminal device
1 b.
[0097]
In step S324, the sound data of the sound FL delayed by τ1a from the reception is decoded into
an analog electric signal by the sound data reproducing unit 108 and reproduced by the sound
speaker 109. Similarly, in the portable terminal device 1b, the operations of step S331 to step
S334 are performed as shown in FIG. At this time, data transfer to the portable terminal device
1c is performed via the cable 21b, and the delay processing of the sound FR becomes τ1b after
reception.
[0098]
Similarly, in the portable terminal 1c, the operations of steps S341 to S344 are performed as
shown in FIG. At this time, data transfer to the portable terminal device 1d is performed via the
cable 21c, and the delay processing of the sound RL becomes τ1c after reception.
[0099]
Similarly, in the portable terminal device 1d, the operations of steps S351 to S354 are performed
as shown in FIG. At this time, data transfer to the portable terminal device 1e is performed via
the cable 21d, and the delay processing of the sound RR becomes τ1d from reception.
[0100]
Similarly, in the portable terminal 1e, the operations of steps S355 and S356 are performed as
shown in FIG. At this time, the portable terminal device 1e may not have a delay circuit. Thus, by
delaying the reproduction start time, it is possible to reproduce synchronized surround sound
and to improve sound quality.
[0101]
10-05-2019
27
FIG. 15 is a sequence diagram for explaining the reproduction operation at the time of transfer
delay regarding the portable terminal device of the serial connection configuration in FIG. As
shown in the figure, the mobile terminal device 1a receives sound data of sounds FL, FR, RL, RR,
and LOW from the public line, and the sound data reproduction unit 108 of the mobile terminal
device 1a holds sound data of sound FL. Sound data of the sounds FR, RL, RR, LOW are
transferred from the portable terminal device 1a to the portable terminal device 1b, and the
acoustic data reproduction unit 108 of the portable terminal device 1b holds the acoustic data of
the sound FR. The sound data of sound RL, RR, LOW is transferred from 1b to the portable
terminal device 1c, and the acoustic data reproduction unit 108 of the portable terminal device
1c holds the acoustic data of the RL sound, and the portable terminal device 1c to the portable
terminal device 1d The sound data of the sound RR is transferred, and the sound data
reproduction unit 108 of the portable terminal 1 d holds the sound data of the sound RR, and the
portable terminal 1 d transmits the sound to the portable end Acoustic data of a sound LOW is
transferred to the device 1e.
[0102]
The sound data reproducing unit 108 does not reproduce sound data at the same time as
reception, but waits for reception of a start signal to perform reproduction. In the portable
terminal device 1e, when sound and LOW acoustic data are received, the sound LOW is
reproduced, and at the same time, the start signal is transmitted to the portable terminal device
1d.
[0103]
When the portable terminal 1d receives the start signal, the sound RR is reproduced from the
acoustic data stored in the acoustic data reproducing unit 108, and at the same time, the start
signal is transmitted to the portable terminal 1c. Similarly, in the portable terminal device 1c, the
sound RL is reproduced, and at the same time, the start signal is transmitted to the portable
terminal device 1b.
[0104]
10-05-2019
28
In the portable terminal 1b, the sound FR is similarly reproduced, and at the same time, the start
signal is transmitted to the portable terminal 1a. When the portable terminal device 1a receives
the start signal, the sound FL is similarly reproduced.
[0105]
Thus, when the portable terminal device 1e is ready for reproduction, the start signal is returned
to the portable terminal devices 1d, 1c, 1b and 1a via the cables 21d, 21c, 21b and 21a. The
sound reproduction of all the portable terminal devices 1a, 1b, 1c, 1d, 1e is started upon the
signal.
[0106]
Next, the start signal described above passes the cables 21d, 21c, 21b and 21a serially to reach
the portable terminal 1a from the portable terminal 1e, so the cable 21d, the cable 21c, the cable
21b, the cable When the delay due to the time taken for the transmission of 21a is a problem, a
modification of the reproduction operation of the acoustic data reproduction unit 108 of the
portable terminal devices 1a, 1b, 1c, 1d, 1e will be described.
[0107]
FIG. 16 is a sequence diagram for explaining the delay of transmission of the start signal in FIG.
As shown in the figure, delay time τse of transmission of the start signal from the portable
terminal device 1e to the portable terminal device 1a, delay time τsd of transmission of the start
signal from the portable terminal device 1d to the portable terminal device 1a, portable terminal
device It is assumed that the delay time τsc of the transmission of the start signal from 1c to the
portable terminal device 1a and the delay time τsb of the transmission of the start signal from
the portable terminal device 1b to the portable terminal device 1a are estimated.
[0108]
Transmission delay time τse is set in delay section 115 of portable terminal apparatus 1e,
transmission delay time τsc is set in delay section 115 of portable terminal apparatus 1c, and
transmission delay time τsb is transmitted to delay section 115 of portable terminal apparatus
1b. Is set.
10-05-2019
29
Hereinafter, the reproduction operation at the time of occurrence of the start signal transmission
delay with respect to the acoustic data reproduction unit 108 of the portable terminal devices 1a,
1b, 1c, 1d and 1e will be described.
[0109]
FIG. 17 is a flow chart for explaining an example of the reproduction operation at the time of
occurrence of a delay of the start signal transmission with respect to the acoustic data
reproduction unit 108 in the portable terminal devices 1a, 1b, 1c, 1d and 1e of FIG. As shown in
FIG. 6A, in step S361, the portable terminal device 1a outputs sound data of sounds FL, FR, RL,
RR, and LOW received from a public line and demodulated to the sound data reproduction unit
108.
[0110]
In step S362, the sound data reproduction unit 108 divides and holds the sound data of the
sound FL from the sound data of the received sounds FL, FR, RL, RR, and LOW. In step S363, the
sound data of the other divided sound FR, RL, RR, LOW is transmitted from the sound data
reproducing unit 108 of the portable terminal device 1a via the signal terminal 112A, the cable
21a, and the signal receiving terminal 112B. It is transferred to the acoustic data reproduction
unit 108 of the portable terminal device 1 b.
[0111]
At step S364, the start signal is received from the portable terminal 1b. In step S365, the
acoustic data reproduction unit 108 decodes the acoustic data of the sound FL held at the time of
reception of the start signal into an analog electrical signal and reproduces it by the acoustic
speaker 109.
[0112]
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30
Similarly, in the portable terminal device 1b, as shown in FIG. 6B, the operations of steps S371 to
S374 are performed. At this time, data transfer with the portable terminal device 1c and
reception of a start signal are performed via the cable 21b. Further, in step S 375, delay
processing of the reproduction start time of the sound FR is performed.
[0113]
In step S376, the start signal is transmitted to the acoustic data reproducing unit 108 of the
portable terminal 1a via the signal terminal 112A, the cable 21a, and the signal receiving
terminal 112B. In step S377, the sound data of the sound FR is decoded into an analog electric
signal by the sound data reproducing unit 108 after .tau.sb from the start signal reception and
reproduced by the sound speaker 109. FIG.
[0114]
Similar to the portable terminal device 1b, in the portable terminal device 1c, the operations of
steps S381 to S387 are performed as shown in FIG. At this time, data transfer with the portable
terminal device 1d and reception of the start signal are performed via the cable 21b, and delay
processing of the sound RR becomes τsc from reception.
[0115]
Similarly, in the portable terminal 1d, the operations of steps S388 to S394 are performed as
shown in FIG. At this time, data transfer with the portable terminal device 1e and reception of a
start signal are performed via the cable 21c, and delay processing of the sound RL becomes τsd
from reception.
[0116]
Similarly, in the portable terminal 1e, the operations of steps S395 to S398 are performed as
shown in FIG. At this time, data transfer to the portable terminal device 1e is performed via the
cable 21d, and the delay processing of the sound RR becomes τse from the reception.
10-05-2019
31
[0117]
In this way, even if there is a transmission delay of the start signal, it is possible to reproduce
synchronized surround sound and to improve the sound quality.
[0118]
Next, a modification in which the reproduction operation is performed in synchronization with
the clock when a transfer delay occurs in the acoustic data reproduction unit 108 of the portable
terminal devices 1a, 1b, 1c, 1e and 1e will be described below.
[0119]
FIG. 18 shows a modification of FIG. 13. The portable terminal 1a, the portable terminal 1b, the
portable terminal 1c, the portable terminal 1d, and the portable terminal are synchronized with
the clock when the influence of the transfer delay time can not be ignored. It is a block diagram
which shows schematic structure of each of the apparatus 1e.
[0120]
As shown in this figure, compared with FIG. 15, a clock unit 116 is provided in the acoustic data
reproduction unit 108 in each of the portable terminal devices 1a, 1b, 1c, 1d and 1e.
The portable terminal devices 1a, 1b, 1c, 1d, 1e each have a clock tuned between the devices.
Further, among the portable terminal devices 1a, 1b, 1c, 1d, and 1e, it is the acoustic data of the
portable terminal device 1a that should be maximally delayed when reproducing acoustic data.
[0121]
The transfer delay time τ 1 a is the maximum accumulation time in which the transfer delay
time required for the division process and the transfer process is accumulated for each transfer.
The clock unit 116 generates a clock in which the step width of the clock is set larger than the
10-05-2019
32
maximum accumulation time (τ1a) as follows. FIG. 19 shows a clock for synchronization formed
by the clock unit 116. As shown in FIG. 6A, in the portable terminal devices 1a, 1b, 1c, 1d, and
1e, mutually synchronized clocks are generated.
[0122]
As shown in FIG. 7B, the acoustic data reproducing unit 108 of the portable terminal 1a, 1b, 1c,
1d has a cycle of t> τ1a, and a synchronization clock for each of them is synchronized. It is
formed. The portable terminal device 1a receives and demodulates sound data of sounds FL, FR,
RL, RR, and LOW from the public line, and then, when the first synchronization clock is generated
in the clock unit 116 of the sound data reproduction unit 108, reproduction is performed. A
division process of sound data to be performed and a transfer process to the portable terminal
device 1b are performed.
[0123]
Based on this, the transfer from the portable terminal 1b to the portable terminal 1c, and the
transfer to the next portable terminal 1d, 1e, and so on are performed one after another. Next,
when the clock for synchronization is input from the clock unit 116 in the portable terminal
device 1a next, in the portable terminal devices 1b, 1c, 1d, and 1e, the clock unit 116 generates
the first synchronization clock after receiving the acoustic data. Then, playback is simultaneously
performed.
[0124]
As described above, by setting the reproduction timing with the synchronization clock of the
clock unit 116, it becomes possible to reproduce synchronized surround sound and to improve
the sound quality. Note that, as shown in FIG. 12, when the configuration includes the television
120, the delay of the sound data of the television 120 is also taken into consideration. The
reproduction is delayed at the above timing.
[0125]
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33
FIG. 20 is a diagram showing an example of parallel connection in the schematic configuration of
the fifth embodiment of the sound reproduction system of the portable terminal device according
to the present invention. As shown in the figure, the sound reproduction system of the portable
terminal device comprises five portable terminal devices 1a, 1b, 1c, 1d, 1e, and a television (TV)
120, and the five portable terminal devices 1a, 1b, 1c, 1d, 1e are arranged around the viewer 5
to reproduce surround sound and low-frequency sound, and the television 120 arranged around
the viewer 5 reproduce high-frequency sound HIGH and image data.
[0126]
Sound data FL, FR, RL, RR of surround sound, sound data of low-range sound LOW, image data
are received only by the portable terminal device 1a via the received radio wave 22a, and sound
FR, RL, RR is received. Sound data of the low-frequency sound LOW and image data are
transferred to the portable terminal devices 1b, 1c, 1d and 1e via the cables 21a, 21b, 21c and
21d.
[0127]
FIG. 21 is a modification of FIG. 9, and is a block diagram showing a schematic configuration of
each of portable terminal devices 1a, 1b, 1c, 1d and 1e in FIG.
As shown in this figure, compared with FIG. 9, in each of the portable terminal devices 1a, 1b, 1c,
1d and 1e, a signal terminal 112A connected to the acoustic data reproduction unit 108 is a
signal terminal 112A- 1, 112A-2, 112A-3, and 112A-4.
[0128]
FIG. 22 is a view for explaining an example of the reproducing operation of the fifth embodiment
of FIG. As shown in this figure (a), it is assumed that multimedia data such as sound FL, FR, RL,
RR, L, R low band sound LOW, high band sound HIGH, and images are distributed from a data
distribution service or the like. . As shown in FIG. 6B, in the mobile terminal device 1a, the sounds
FL, FR, RL, RR, low range sound LOW, high range sound HIGH shown in FIG. Data and image data
are received.
[0129]
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34
As shown in FIG. 6C, the sound data reproduction unit 108 divides the sound data of the sound
FL and the image data from the reception data, and the image data is decoded and reproduced
from the sound speaker 109. The image is displayed on the screen. As shown in FIG. 6D, the
sound data reproduction unit 108 divides the sound data and sound data of the sound FR from
the reception data from the reception data, and from the signal terminal 112A-1 of the portable
terminal device 1a to the cable 21a. It transfers to the signal receiving terminal 112B of the
portable terminal device 1b.
[0130]
Similarly, as shown in (e) of the figure, the sound data and sound data of the sound RL are
divided, and the portable terminal device is transmitted from the signal terminal 112A-2 of the
portable terminal device 1a to the cable 21b. The signal is transferred to the 1c signal receiving
terminal 112B. Similarly, as shown in the figure (f), the sound data and sound data of the sound
RR are processed and transferred from the signal receiving terminal 112A-3 to the signal
receiving terminal 112B of the portable terminal 1d via the cable 21c. Be done.
[0131]
Similarly, as shown in (g) of the figure, the sound data and image data of the low range sound
LOW are processed, and the signal of the portable terminal 1e is transmitted from the signal
terminal 112A-3 to the cable 21d. It is transferred to the receiving terminal 112B. As shown in
(h) of the figure, in the television 120, the sound data and the image data of the high band sound
HIGH are received and reproduced.
[0132]
The acoustic data reproduction unit 108 of the portable terminal device 1b receives the acoustic
data and the image data of the sound FL from the portable terminal device 1a via the cable 21a
and is decoded, and the sound FR from the acoustic speaker 109 is received. Is played back and
the image is displayed on the screen. Similarly, in the portable terminal device 1c, the sound RL is
reproduced and the image data is displayed. Similarly, the portable terminal 1 d reproduces the
sound RR and displays the image data. Similarly, the low frequency sound LOW is reproduced in
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the portable terminal device 1e, and the image data is displayed.
[0133]
In this way, the connection with the data distribution service, which is the sound data providing
service site, is made one line, and the parallel connection with the other portable terminal device
is made, avoiding congestion of the communication line and making the communication cost. It
became possible to listen to the low-pass sound, the surround sound excellent in the high-pass
sound and the image while reducing it. That is, realization of a home theater becomes possible.
[0134]
Next, a schematic configuration of the first modification of the fifth embodiment will be described
with reference to FIG. The sound reproduction system of the portable terminal device comprises
four portable terminal devices 1a, 1b, 1c, 1d and a television (TV) 120, and the four portable
terminal devices 1a, 1b, 1c, 1d are around the viewer 5 The television 120 arranged and
reproducing the surround sound and arranged around the viewer 5 reproduces the low
frequency sound LOW and the image data. The surround sound data FL, FR, RL, RR and image
data are received only by the mobile terminal device 1a via the received radio wave 22a, and the
sound data of the sounds FR, RR and RL, the image data are cables 21a, 21b, It transfers to the
portable terminal devices 1b, 1c and 1d via 21c.
[0135]
A schematic reproduction operation of the first modification of the fifth embodiment will be
described with reference to FIG. As shown in FIGS. 22 (b) and 22 (c), the mobile terminal device
1a performs reception and split reproduction. As shown in (d) to (f) of FIG. 22, divisional transfer
is performed to the portable terminal devices 1 b, 1 c, and 1 d.
[0136]
The television 120 receives and reproduces high-pitched sound HIGH sound data and image data.
Reception and reproduction are performed in the portable terminal devices 1b, 1c and 1d. Next, a
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schematic configuration of a second modification of the fifth embodiment will be described with
reference to FIG.
[0137]
The sound reproduction system of the portable terminal device comprises the portable terminal
devices 1a, 1b, 1e and the television (TV) 120, and the portable terminal devices 1a, 1b, 1e are
arranged around the viewer 5 and surround sound , And the television 120 placed around the
viewer 5 reproduces high-pitched sound HIGH and image data. The surround sound data FL and
FR and the low frequency sound data LOW are received only by the mobile terminal device 1a
via the received radio wave 22a, and the sound data of the sound FR and the low frequency
sound LOW are transmitted via the cables 21a and 21b. It transfers to portable terminal unit 1b
and 1c.
[0138]
An outline reproduction operation of the second modification of the fifth embodiment will be
described with reference to FIG. As shown in FIGS. 22 (b) and 22 (c), the mobile terminal device
1a performs reception and split reproduction. As shown in FIGS. 22D and 22G, divisional transfer
is performed to the portable terminal devices 1b and 1e, and reception and reproduction are
performed on the portable terminal devices 1b and 1c.
[0139]
The television 120 receives the sound data and the image data of the high band sound HIGH.
Next, a schematic configuration of a third modification of the fifth embodiment will be described
with reference to FIG. The audio reproduction system of the portable terminal device is
composed of four portable terminal devices 1a, 1b, 1c and 1d, and the four portable terminal
devices 1a, 1b, 1c and 1d are arranged around the viewer 5 to reproduce surround sound. The
television 120 disposed around the viewer 5 reproduces low-pitched sound LOW and image data.
The surround sound data FL, FR, RL, RR and image data are received only by the mobile terminal
device 1a via the received radio wave 22a, and the sound data of the sounds FR, RR and RL, the
image data are cables 21a, 21b, It transfers to the portable terminal devices 1b, 1c and 1d via
21c.
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[0140]
In the first and second modifications of the fifth embodiment, a configuration in which the
television 120 is deleted is also possible. Furthermore, in the third modification of the fifth
embodiment, the television 120 can also be a stereo output. FIG. 23 is a diagram for explaining a
delay that occurs when transferring the configuration of FIG. 20 as an example. As shown in this
figure (a), when acoustic data is transferred in parallel from the portable terminal device 1a to
the portable terminal device 1b, the portable terminal device 1c, the portable terminal device 1d,
and the portable terminal device 1e, It takes time and transfer delay time τ 2 may occur.
[0141]
As shown in (b) of this figure, each of the portable terminal devices 1a, 1b, 1c, 1d and 1e of FIG.
20 when the transfer delay can not be neglected is compared with that of FIG. The sound data
reproduction unit 108 is provided with a delay unit 115. The transfer delay time τ2 is set only
for the delay unit 115 of the acoustic data reproduction unit 108 in the portable terminal device
1a except for the portable terminal devices 1b, 1c, 1d and 1e.
[0142]
FIG. 24 is a flow chart for explaining an example of the reproduction operation at the time of
delay occurrence concerning the sound data reproduction unit 108 in the portable terminal
devices 1a, 1b, 1c, 1d and 1e of FIG. As shown in FIG. 6A, in step S401, the portable terminal
device 1a outputs sound data of sounds FL, FR, RL, RR, and low-range sound LOW received from
the public line and demodulated to the sound data reproduction unit 108. Do.
[0143]
In step S402, the sound data of the sound FL is divided from the sound data of the received
sounds FL, FR, RL, RR and the low range sound LOW by the sound data reproducing unit 108
and subjected to delay processing. In step S403, the sound data of the sound FR is divided from
the sound data of the other divided sounds FR, RL, RR, and the low-range sound LOW, and
transferred to the mobile terminal device 1c.
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[0144]
In step S404, the sound data of the sound RL is divided from the sound data of the other divided
sound RL, RR, and low-range sound LOW, and transferred to the portable terminal device 1c. In
step S405, the sound data of the other divided sound RR and low-range sound LOW are
transferred to the portable terminal device 1d.
[0145]
At step S407, the sound data of the remaining low-range sound LOW which has been divided is
transferred to the portable terminal 1d. In step S406, the acoustic data reproduction unit 108
decodes the acoustic data of the sound FL that has been subjected to delay processing by τ2
from reception into an analog electrical signal, and is reproduced by the acoustic speaker 109.
[0146]
As shown in FIG. 14B, in step S411, the acoustic data reproduction unit 108 receives the acoustic
data of the sound FR transferred from the portable terminal 1a to the portable terminal 1b. In
step S412, the sound data of the received sound FR is decoded into an analog electric signal by
the sound data reproducing unit 108 of the portable terminal device 1b and reproduced by the
sound speaker 109.
[0147]
Similarly, as shown in FIG. 6C, the acoustic data of the RL sound is reproduced by the portable
terminal device 1c. Similarly, as shown in FIG. 6D, the acoustic data of the RR sound is
reproduced by the portable terminal device 1d. Similarly, as shown in FIG. 5E, the sound data of
the LOW sound is reproduced by the portable terminal device 1e. As described above, even in the
portable terminal device connected in parallel, the synchronized surround sound is reproduced,
and the sound quality can be improved.
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[0148]
FIG. 25 is a modification of FIG. 9 and FIG. 21 and is a block diagram showing a schematic
configuration of each of the portable terminal devices 1a, 1b, 1c, 1d and 1e. As shown in this
figure, in comparison with FIGS. 9 and 21, each of the portable terminal devices 1a, 1b, 1c, 1d
and 1e has a wireless module terminal as a signal transfer terminal connected to the acoustic
data reproduction unit 108. 112C is provided. The wireless module terminal 112C is a terminal
using a wireless mode capable of specifying a communication counterpart, such as PHS
transceiver mode or bluetooth.
[0149]
That is, as shown in FIG. 7, FIG. 8 and FIG. 12, by using the wireless module 112C, instead of
serial connection of a configuration including or not including the television 120, audio data and
images are exchanged between portable terminal devices. It becomes possible to transfer data.
Further, by using the wireless module 112C, it becomes possible to transfer audio data and
image data between portable terminal devices instead of parallel connection of a configuration
including or not including the television 120 as shown in FIG. .
[0150]
As described above, by using the wireless module, it is possible to prevent the cable from
becoming an obstacle such as being caught when a person moves around the present system,
and it is possible to use a stereo system by using the present system while away from home.
When playing back the sound, it is possible to save the trouble of bringing the cable. FIG. 26 is a
modification of FIG. 21 and is a block diagram showing a schematic configuration of each of the
portable terminal devices 1a, 1b, 1c, 1d and 1e.
[0151]
As shown in this figure, as compared with FIG. 21, each of portable terminal devices 1a, 1b, 1c,
1d and 1e is provided with a memory unit 117 connected to control unit 103 as a storage device.
As the memory unit 117, when the capacity of the internal storage device of the portable
terminal 1a, 1b, 1c, 1d, 1e is sufficiently large, the internal storage device is used, and when not
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enough, an external storage device, storage Media may be used. As a storage medium, a Compact
Flash (registered trademark) memory card, smart media, a memory stick, an SD memory card, or
the like may be used.
[0152]
The memory unit 117 stores acoustic data downloaded from the data distribution service
through the public line. Also, sound data downloaded from the download station may be used. In
addition, music software stored in sound data may be directly purchased and used.
[0153]
The acoustic data reproduction unit 108 of the portable terminal device 1a reproduces the
downloaded acoustic data as described below, and simultaneously transfers and reproduces the
downloaded acoustic data to the acoustic data reproduction unit 108 of the portable terminal
device 1b. .
[0154]
FIG. 27 is a flow chart for explaining an example in which the line connection time is saved in the
reproduction operation on the acoustic data reproduction unit 108 of FIG. 26 between the
portable terminal 1a and the portable terminal 1b.
As shown in FIG. 6A, in step S441, the mobile terminal 1a is connected to the public line, and
sound data of the sound L and sound R received from the public line and demodulated is output
to the sound data reproduction unit 108. .
[0155]
At step S 442, the sound data reproducing unit 108 downloads the sound data of L sound and R
sound to the memory unit 117. The acoustic data downloaded to the memory unit 117 is stored
as it is or in a compressed state. The format of the compressed acoustic data to be downloaded is,
for example, MP3. In step S443, after the end of the storage in the memory unit 117, the
connection of the public line is temporarily disconnected.
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[0156]
In step S 444, the acoustic data reproduction unit 108 reads the acoustic data of the L sound and
the R sound from the memory unit 117. In step S445, the sound data of L sound is divided and
reproduced. In step S446, the other divided R sound data is transmitted from the sound data
reproducing unit 108 of the portable terminal device 1a to the acoustic data of the portable
terminal device 1b via the signal terminal 112A, the cable 21a, and the signal receiving terminal
112B. The data is transferred to the data reproduction unit 108.
[0157]
As shown in FIG. 7B, in step S451, the acoustic data reproduction unit 108 receives the acoustic
data of the R sound transferred from the portable terminal 1a. In step S 452, the received
acoustic data of the R sound is decoded into an analog electrical signal by the acoustic data
reproduction unit 108 and reproduced by the acoustic speaker 109.
[0158]
The acoustic data once downloaded can be reproduced repeatedly. In this way, it is possible to
listen to the sound any time and many times whenever it is desired to listen to the sound without
worrying about the line connection time. Also, playback may be performed in parallel with
downloading.
[0159]
Further, by using the necessary number of storage media of the capacity necessary for
downloading, the data library can be realized at hand, and repeated downloading of the same
data can be avoided. In this way, line connection time can be saved for the same acoustic data.
FIG. 28 is a modification of FIG. 26, and is a block diagram showing a schematic configuration of
each of the portable terminal devices 1a, 1b, 1c, 1d and 1e.
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[0160]
As shown in this figure, as compared with FIG. 26, the wireless module terminal 111C is
provided, and the acoustic data stored in the memory section 117 is transferred to another
portable terminal device using the wireless module terminal 111C. You may do it. In this way, for
the same acoustic data, it is possible to save circuit connection time while eliminating cable
faults.
[0161]
FIG. 29 is a schematic configuration of the sixth embodiment in the sound reproduction system
of the portable terminal device according to the present invention, showing an example of
acquiring sound data from the information device. As shown to this figure, the sound
reproduction system of a portable terminal device is comprised from two portable terminal
devices 1a and 1b. The two portable terminal devices 1a and 1b are arranged in the same place
and reproduce stereo sound.
[0162]
That is, of the two portable terminal devices 1a and 1b installed at positions separated from each
other, the sound L and video are reproduced from the portable terminal device 1a, and the sound
R and video are reproduced from the portable terminal device 1b. Be regenerated. As shown in
the figure, the stereo separation device 31 is connected to stereo output terminals of information
devices such as headphone stereo, AV equipment, personal computer, etc. to separate sound data
L and R into audio data and video data, and separate data It outputs to cable 21a and cable 21b.
[0163]
In the home, sound data can be reproduced at any place, and diversity of sound sources can be
ensured, and moreover, it is not influenced by line congestion and line usage fee. FIG. 30 is a
block diagram showing a schematic configuration of each of the portable terminal devices 1a and
1b of FIG. As shown in this figure, the signal receiving terminal 112B is different from that in FIG.
The signal receiving terminal 112B of each of the portable terminal devices 1a and 1b is
connected to the cables 21a and 21b.
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[0164]
The information device is composed of a headphone stereo, an AV device, a personal computer,
etc., and has multimedia data including sound data in advance. It becomes possible to acquire
acoustic data and image data at the signal receiving terminal 112B from the output terminal of
the information device via the separation device 31 and the cables 21a and 21b.
[0165]
Also, multimedia data including audio data on the Internet via a telephone line, multimedia data
including sound data such as movies and music performance via a circuit such as CATV (cable
television), etc. It is possible to obtain via an information device. Next, a schematic reproduction
operation of the sixth embodiment of FIG. 29 will be described with reference to FIG.
[0166]
As shown in FIG. 6 (a), it is assumed that multimedia data including sounds FL, FR, RL, RR, low
band sound LOW, high band sound HIGHT, images and the like are provided from the
information device. As shown in FIG. 6 (b), the acoustic data reproduction unit 108 of the
portable terminal device 1a receives the acoustic data of the sound FL shown in FIG. 6 (a) via the
cable 21a, and decodes and receives the acoustic speaker The sound L is reproduced from 109.
Further, the image data shown in FIG. 6A is received and displayed on the screen.
[0167]
As shown in FIG. 6C, in the portable terminal 1b, the sound data and image data of the sound FR
shown in FIG. 6A are received through the cable 21b, and the sound data reproducing unit 108
The sound R is reproduced from the sound speaker 109 after being decoded. Further, the image
data shown in FIG. 6A is received and displayed on the screen. FIG. 31 shows a first modification
of the sixth embodiment of FIG. As shown in the figure, compared to FIG. 29, the sound
reproduction system of the portable terminal device is configured of three portable terminal
devices 1a, 1b and 1c. The three portable terminal devices 1a, 1b and 1c are arranged around
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the viewer 5 and reproduce stereo sound and images excellent in bass characteristics.
[0168]
That is, among the three portable terminal devices 1a, 1b and 1c installed at positions away from
each other, the sound FL and the image are reproduced from the portable terminal device 1a, and
the sound FR and the sound from the portable terminal device 1b are obtained. The image is
reproduced, and the sound LOW is reproduced from the portable terminal device 1c.
[0169]
As compared with FIG. 29, a stereo wireless separation connector 32 is provided instead of the
stereo separation device 31, and the stereo wireless separation connector 32 is an audio signal of
sound FL and an image of a sound FL by a radio signal 23a. Data are transmitted to the portable
terminal devices 1a, 1b, and 1c as sound data of the sound FR as the wireless signal 23b and
image data as the wireless signal 23c, respectively.
When the stereo separation connector does not have the function of separating the low range
LOW, the portable terminal device 1c receives both the sound L and the sound R and separates
and reproduces the low range sound LOW by using a LOW pass filter or the like. It can also be
done.
[0170]
The wireless separation device 32 is, for example, a wireless module using a wireless method
capable of specifying a communication partner such as PHS transceiver mode, bluetooth, etc.,
such as headphone stereo, AV equipment, personal computer, etc. It is connected to the stereo
output terminal of the information device.
[0171]
FIG. 32 is a modification of FIG. 30, and is a view showing a schematic configuration of the
portable terminal devices 1a, 1b and 1c of FIG.
As shown in this figure, in comparison with FIG. 30, the wireless module terminal 112C is
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45
provided, and the wireless module terminal 112C uses a wireless method that can specify the
other party of communication, such as PHS transceiver mode and bluetooth, for example. The
wireless module performs wireless communication with the wireless separation device 32, and
receives acoustic data.
[0172]
In this way, it is possible to avoid the trouble of cables such as troublesome wiring and hooking
cables during movement, and also, when realizing stereo sound reproduction using this system,
when going out, It saves time and effort to bring the cable. Next, a schematic configuration of a
second modification of the sixth embodiment will be described with reference to FIG. The sound
reproduction system of the portable terminal device may be configured by only the three
portable terminal devices 1a and 1b shown in FIG.
[0173]
The two portable terminal devices 1a and 1b are arranged in the same place and reproduce
stereo sound and images. That is, the sound L and image data are reproduced from the portable
terminal 1a of the two portable terminal devices 1a and 1b installed at mutually separated
positions, and the sound R and image data are reproduced from the portable terminal 1b. Be
done.
[0174]
The wireless type separation connector 32 of stereo transmits sound data of sound L and image
data of sound L by radio signal 23a and sound data of sound R and image data of sound R by
radio signal 23b to portable terminal devices 1a and 1b, respectively. Do. FIG. 33 shows a third
modification of the sixth embodiment of FIG. As shown in the figure, the sound reproduction
system of the portable terminal device is constituted by three portable terminal devices 1a, 1b
and 1c and a personal computer 130.
[0175]
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46
Three portable terminal devices 1a, 1b, 1c and a personal computer 130 are arranged around the
viewer 5 to reproduce surround sound. That is, of the two portable terminal devices 1a, 1b, and
1c installed at mutually separate positions, the sound RL is reproduced from the portable
terminal device 1a, and the sound RR is reproduced from the portable terminal device 1b.
[0176]
Sounds FL and FR are reproduced from the speakers 131a and 131b of the personal computer
130. As shown in the figure, the stereo separation device 31 is connected to the stereo output
terminal of the personal computer 130 to separate sound data RL, RR, and low-range sound LOW
into sound data, and the separated data are separated into radio signals 23a, 23b, 23c. To the
portable terminal devices 1a, 1b and 1c.
[0177]
Next, a schematic configuration of the fourth modification of the sixth embodiment will be
described with reference to FIG. The sound reproduction system of the portable terminal device
may be configured by two portable terminal devices 1a and 1b and a personal computer 130
shown in FIG. Two portable terminal devices 1a and 1b and a personal computer 130 are
arranged around the viewer 5 to reproduce surround sound.
[0178]
That is, of the two portable terminal devices 1a and 1b installed at positions away from each
other, the sound RL is reproduced from the portable terminal device 1a, and the sound RR is
reproduced from the portable terminal device 1b. Sounds FL and FR are reproduced from the
speakers 131a and 131b of the personal computer 130.
[0179]
The stereo separation device 31 is connected to the stereo output terminal of the personal
computer 130, separates it into sound data of sound RL and RR, and separates the separated data
into the portable terminal devices 1a and 1b through the radio signals 23a and 23b. Output. In
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the third and fourth modifications of the sixth embodiment, the personal computer 130 may be
replaced with a notebook personal computer.
[0180]
FIG. 34 shows an example of delaying input data of the speakers 131a and 131b of the personal
computer 130 of FIG. 33 as an example. As shown in FIG. 6A, delay devices 132a and 132b are
provided on the input side of the speakers 131a and 131b of the personal computer 130 that
reproduces the sounds FL and FR.
[0181]
As shown in FIG. 7B, when the transfer delay from the personal computer 130 to the portable
terminal 1a, 1b can not be ignored, the delay times τp1, τp2 for the delay units 132a, 132b are
set. When time delay τ occurs in transfer of acoustic data from the personal computer 130 to
the portable terminal device 1a and the portable terminal device 1b by these delay devices 132a
and 132b, reproduction by the speakers 131a and 131b of the personal computer 130 is τp1. ,
Τp2 is delayed.
[0182]
Thus, when connected to an information device such as a personal computer, it is possible to
improve the sound quality by delay. FIG. 35 is a flowchart illustrating selection control of
acquired data. As shown in FIG. 6A, in step S441, the control unit 103 of the portable terminal
device determines whether there is a request for selection of acquired data. If there is no request,
the process ends.
[0183]
If it is determined in step S442 that there is a request for selection of acquired data, it is
determined whether there is a request for data acquisition by received radio waves. If there is no
request, the process proceeds to step S444. If it is determined in step S443 that there is a
request for data acquisition by received radio waves, acoustic data / image data is received and
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reproduced, and the process ends.
[0184]
In step S444, it is determined whether there is a request for data acquisition from the
information device. If there is a request, the process proceeds to step S443, and if there is no
request, the process proceeds to step S445. In step S445, it is determined whether there is a
request for data acquisition from memory unit 117 or not. If there is a request, the process
proceeds to step S443, and if there is no request, the process ends.
[0185]
In this way, access to multimedia data including various acoustic data is facilitated. In the above
description, acquisition of multimedia data including acoustic data is described, but the present
invention can be applied to multimedia data not including acoustic data. For example, it is
possible to play a game by downloading the same game data between a plurality of mobile
terminal devices.
[0186]
For example, in the third embodiment shown in FIG. 7, the fourth embodiment shown in FIG. 12,
the fifth embodiment shown in FIG. 20, the sixth embodiment shown in FIG. 29, etc. Power may
be supplied from the This is to cope with the power shortage.
[0187]
As described above, according to the present invention, the acoustic data is reproduced by the
acoustic speaker, the acoustic speaker is reproduced in cooperation with the acoustic device, and
the acquired image data is displayed. Since stereo sound, low-frequency sound, high-frequency
sound and surround sound can be played back from home, it is also possible to realize a simple
or realistic home theater. The
[0188]
Brief description of the drawings
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49
[0189]
1 is a diagram showing an example of receiving individually in the schematic configuration of the
first embodiment of the sound reproduction system of the portable terminal device according to
the present invention.
[0190]
2 is a block diagram showing a schematic configuration of each of the mobile terminal devices
1a, 1b, 1c, 1d, 1e of FIG.
[0191]
3 is a diagram for explaining the reproduction operation of the first embodiment in FIG.
[0192]
<Figure 4> It is the figure which shows the outline constitution of the 2nd execution example of
the sound playback system of the portable terminal unit which relates to this invention.
[0193]
5 is a diagram showing a schematic configuration of a first modification of the second
embodiment.
[0194]
6 is a diagram for explaining the reproduction operation of the second embodiment of FIG.
[0195]
<Figure 7> It is the figure which shows the example which is connected serially with the outline
constitution of the 3rd execution example of the sound reproduction system of the portable
terminal unit which relates to this invention.
[0196]
<Figure 8> It is the figure which shows the outline constitution of the 4th deformation example
of 3rd execution example in Figure 7.
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50
[0197]
9 is a block diagram showing a schematic configuration of each of the mobile terminal devices
1a, 1b, 1c, 1d, 1e of FIG. 7 and FIG.
[0198]
10 is a diagram for explaining the reproduction operation of the third embodiment of FIG.
[0199]
11 is a diagram for explaining the reproduction operation of the fourth modification of the third
embodiment in FIG.
[0200]
12 is a diagram showing another example of the serial connection of the schematic configuration
of the fourth embodiment of the sound reproduction system of the portable terminal device
according to the present invention.
[0201]
13 is a block diagram showing a schematic configuration of each of the portable terminal devices
1a, 1b, 1c, 1d, 1e when the influence of the transfer delay time can not be ignored.
[0202]
14 is a flow chart for explaining an example of reproduction operation at the time of transfer
delay occurrence concerning the acoustic data reproduction unit 108 in the portable terminal
devices 1a, 1b, 1c, 1d of FIG.
[0203]
15 is a sequence diagram for explaining the reproduction operation at the time of transfer delay
regarding the mobile terminal device of the serial connection configuration in FIG.
[0204]
16 is a sequence diagram for explaining the delay of the transmission of the start signal in FIG.
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51
[0205]
17 is a flow chart for explaining an example of reproduction operation at the time of occurrence
of delay of start signal transmission concerning the acoustic data reproduction unit 108 in the
portable terminal devices 1a, 1b, 1c and 1d of FIG.
[0206]
18 is a modification of FIG. 13 and shows schematic configurations of the portable terminal
device 1a, the portable terminal device 1b, the portable terminal device 1c, and the portable
terminal device 1d synchronized with the clock when the influence of the transfer delay time can
not be ignored. It is a block diagram.
[0207]
19 is a clock for synchronization formed by the clock unit 116.
[0208]
<Figure 20> It is the figure which shows the example which is connected in parallel with outline
constitution of 5th execution example of the sound reproduction system of the portable terminal
unit which relates to this invention.
[0209]
21 is a modification of FIG. 9 and is a block diagram showing a schematic configuration of each
of the portable terminal devices 1a, 1b, 1c, 1d and 1e in FIG.
[0210]
FIG. 22 is a view for explaining an example of the reproducing operation of the fifth embodiment
of FIG. 20;
[0211]
23 is a diagram for explaining a delay that occurs at the time of transfer in the configuration of
FIG. 20 as an example.
[0212]
24 is a flow chart for explaining an example of reproduction operation at the time of delay
occurrence concerning the sound data reproduction unit 108 in the portable terminal devices 1a,
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1b, 1c, 1d and 1e of FIG.
[0213]
FIG. 25 is a modification of FIG. 9 and FIG. 21 and is a block diagram showing a schematic
configuration of each of portable terminal devices 1a, 1b, 1c, 1d and 1e.
[0214]
26 is a block diagram showing a schematic configuration of each of the portable terminal device
1a, 1b, 1c, 1d, 1e is a modification of FIG.
[0215]
27 is a flowchart for explaining an example of shortening the line connection time in the
reproduction operation related to the acoustic data reproduction unit 108 of FIG. 26 between the
portable terminal device 1a and the portable terminal device 1b.
[0216]
28 is a block diagram showing a schematic configuration of each of the portable terminal devices
1a, 1b, 1c, 1d, 1e, which is a modification of FIG.
[0217]
FIG. 29 is a diagram showing an example of acquiring acoustic data from an information device
in the schematic configuration of the sixth embodiment in the audio reproduction system of the
portable terminal device according to the present invention.
[0218]
30 is a block diagram showing a schematic configuration of each of the portable terminal device
1a, 1b of FIG.
[0219]
It is a 1st modification of 6th Example of FIG.
[0220]
32 is a modification of FIG. 30, and is a view showing a schematic configuration of the portable
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terminal devices 1a, 1b and 1c of FIG.
[0221]
It is a 3rd modification of 6th Example of FIG.
[0222]
FIG. 34 is a diagram showing an example of delaying input data of the speakers 131a and 131b
of the personal computer 130 of FIG. 33 as an example.
[0223]
FIG. 35 is a flowchart for describing selection control of acquired data.
[0224]
Explanation of sign
[0225]
1a, 1b, 1c, 1d, 1e: Portable terminal device 5: Viewer, listener 21a, 21b, 21c: Cable 22a, 22b,
22c, 22d: Received electric wave 23a, 23b, 23c: Wireless signal 31: Separation device 32 ...
Wireless separation device 101 ... Antenna 102 ... Transmission / reception unit 103 ... Control
unit 104 ... Display unit 105 ... Input unit 106 ... Transmitter 107 ... Receiver 108 ... Acoustic data
reproduction unit 109 ... Acoustic speakers 112A, 112A-1, 112A -2 112A-3 112A 4 Signal
receiving terminal 112B Signal receiving terminal 112C Wireless module input terminal 115
Delaying portion 116 Clocking portion 117 Memory portion 120 Television 130 Personal
computer 131a, 131b Acoustics Speaker 132a, 132b ... delay device
10-05-2019
54
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