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JP2008294516

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2008294516
An object of the present invention is to provide a reproduction apparatus and a reproduction
method which can appropriately use a plurality of earphones in accordance with respective
characteristics. A storage means (memory 150) for storing data including music, a reproduction
means (music reproduction unit 160) for reproducing data stored in the storage means, and an
audio signal obtained by the reproduction means An output unit (earphone connection unit 170)
for outputting to the earphones, an acquisition unit (earphone identification unit) for acquiring
individual information of each earphone connected to the output unit from the earphones, and an
individual acquired by the acquisition unit And setting means (central control unit 100) for
setting the environment of the apparatus based on the information. [Selected figure] Figure 2
Reproducing apparatus and reproducing method
[0001]
The present invention relates to a playback apparatus and a playback method.
[0002]
Patent Document 1 discloses a technique for sharing audio playback devices by a plurality of
users.
In other words, Patent Document 1 discloses a technology that allows various settings when each
user normally uses the audio playback device to be called from the server device by operating a
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predetermined button.
[0003]
JP 2005-242667 A (claims, abstract)
[0004]
In recent years, many portable playback devices have been distributed in the market.
These portable reproduction devices can reproduce data including music stored in a built-in
memory or a storage device such as an HDD, and can listen to music reproduced using an
earphone.
[0005]
By the way, recently, many types of earphones are sold, and there are many users who select the
earphones according to the environment or purpose to be auditioned. Since the earphones have
different characteristics, it is necessary to adjust the volume level or adjust the equalizer
according to the used earphone, which causes the problem that the operation is complicated for
the user.
[0006]
Therefore, it is also conceivable to prepare setting information for each earphone using the
technique of Patent Document 1 and change the setting by operating a button corresponding to
the earphone to be used. However, such a method is cumbersome because the user needs to
operate the button each time the earphone is changed. In addition, since the user needs to store
the correspondence between the earphones and the buttons, another burden is caused to the
user.
[0007]
The present invention has been made based on the above-described circumstances, and an object
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of the present invention is to provide a reproduction apparatus and a reproduction method
capable of appropriately using a plurality of earphones according to the respective
characteristics. I assume.
[0008]
In order to achieve the above object, a receiving apparatus according to the present invention
comprises a storage means for storing data including music, a reproduction means for
reproducing data stored in the storage means, and an audio signal obtained by the reproduction
means. , Output means for outputting to the earphone, acquisition means for acquiring individual
information of each earphone connected to the output means from the earphone, and
environment setting of the apparatus based on the individual information acquired by the
acquisition means And setting means.
[0009]
In addition to the above-described invention, in the reproduction apparatus according to the
other invention, the individual information is stored in the storage unit on the earphone side, and
when the acquisition means is connected to the output means, the individual unit is separated
from the storage unit. I am trying to get information.
[0010]
In addition to the above-described invention, in the reproduction apparatus according to the
other invention, the individual information is identification information provided for each
earphone, and the setting unit performs environment setting corresponding to the individual
information.
[0011]
In addition to the above-described invention, in the reproduction apparatus according to the
other invention, the individual information includes information on the characteristic of the
earphone, and the setting unit performs environment setting based on the information on the
characteristic.
[0012]
In addition to the above-described invention, in the reproduction apparatus of the other
invention, the setting means sets the volume level corresponding to each earphone.
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[0013]
Further, in the reproduction apparatus of the other invention, in addition to the above-mentioned
invention, the setting means is configured to set the equalizer characteristic corresponding to
each of the earphones.
[0014]
Further, in addition to the above-described invention, the reproducing apparatus of the other
invention has management information for managing data stored in the storage means, and the
setting means is based on predetermined management information corresponding to each
earphone. It manages the data stored in the storage means.
[0015]
Further, in addition to the above-mentioned invention, the reproduction apparatus of the other
invention has a display means for displaying predetermined information, and the setting means
sets the display environment of the display means according to the individual earphones. There
is.
[0016]
Further, the reproduction method of the present invention outputs, to the earphone, a storage
step of storing data including music, a reproduction step of reproducing data stored in the
storage step, and an audio signal obtained in the reproduction step. An output step, an
acquisition step of acquiring from the earphone individual information of each earphone to
which the audio signal output in the output step is supplied, and a setting step of setting the
environment of the device based on the individual information acquired in the acquisition step
Have.
[0017]
According to the present invention, it is possible to provide a playback device and a playback
method capable of appropriately using a plurality of earphones in accordance with the respective
characteristics.
[0018]
Hereinafter, an embodiment of the present invention will be described based on the drawings.
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In the following, (A) configuration example of the embodiment, (B) outline of the operation of the
embodiment, (C) details of the operation of the embodiment, and (D) modified embodiment will
be described in order. .
The playback method of the present invention will be described as the operation of the playback
apparatus according to the embodiment of the present invention.
[0019]
(A) Configuration example of the embodiment
[0020]
FIG. 1 is a schematic perspective view showing a configuration example of a playback device and
an earphone according to an embodiment of the present invention.
As shown in this figure, the playback device 10 according to the embodiment of the present
invention has the display unit 110 and the operation button 121 on the operation panel surface
(surface on the near side in the depth direction of the drawing).
Further, a connection terminal 171 to which the earphone 20 is connected is provided on the top
surface (the upper surface in the vertical direction in the drawing).
In addition, in this figure, since the reproducing apparatus 10 is expanded and shown so that the
detailed structure of the reproducing apparatus 10 may become clear, it differs from an actual
ratio.
[0021]
The earphone 20 is a hair band type earphone, and is mounted so that the two audio output units
220 respectively abut on the user's pinnae, and outputs the signal reproduced in the reproducing
apparatus 10 as an audio from the audio output unit 220 .
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Further, the earphone 20 has a playback device connection unit 200 as a connection terminal
connected to the playback device 10.
As described later, an earphone ID storage unit 210 storing an earphone ID is disposed inside the
playback device connection unit 200.
The playback device connection unit 200 and the audio output unit 220 are connected by a
cable.
In addition, although the hair band type earphone 20 is illustrated as mentioned above in this
example, other than this, for example, a type (canal type) inserted in the external ear canal and a
type (inner ear type) hooked on the outer ear are used It is also possible.
[0022]
FIG. 2 is a block diagram showing an example of the electrical configuration of the playback
apparatus 10 shown in FIG.
As shown in this figure, the playback device 10 includes a central control unit 100, a display unit
110, an input unit 120, an I / F (Interface) unit 130, an earphone identification unit 140, a
memory 150, a music playback unit 160, and earphones. The connection portion 170 is a main
component.
[0023]
Here, the central control unit 100 as setting means is constituted by, for example, a central
processing unit (CPU) or a digital signal processor (DSP), and is stored in, for example, the
memory 150 or a built-in storage unit (not shown). Control each part of the device according to
the program.
[0024]
The display unit 110 as a display unit is configured of, for example, an LCD (Liquid Crystal
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Display), and displays information (text information, image information, and the like) supplied
from the central control unit 100.
[0025]
The input unit 120 is, for example, a key device or the like, generates information according to
the operation of the operation button 121 shown in FIG. 1, and supplies the information to the
central control unit 100.
[0026]
The I / F unit 130 is formed of, for example, a USB (Universal Serial Bus), and exchanges
information with an external personal computer or the like based on the USB standard.
[0027]
When the earphone 20 is connected to the earphone connection unit 170, the earphone
identifying unit 140 as acquisition means acquires the earphone ID from the earphone ID storage
unit 210 of the earphone 20, and identifies the type of the earphone 20.
[0028]
The memory 150 as a storage means is configured by, for example, a flash memory or the like.
In this example, the memory 150 includes music data 151, music information 152, setting
information 153, and the like.
The music data 151 is, for example, data subjected to compression processing by MP3 (MPEG-1
Audio Layer-3), ATRAC (Adaptive Transform Acoustic Coding), or the like.
Video may be included in addition to audio such as music.
The music information 152 as management information is attribute information of the music
data 151, and is used, for example, when classifying each music.
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The setting information 153 is information for performing environment setting and the like, and
is prepared for each earphone in this example.
[0029]
The music reproduction unit 160 as reproduction means reproduces (decodes) the music data
acquired from the memory 150 by the central control unit 100 and supplies the obtained audio
signal to the earphone 20 via the earphone connection unit 170.
[0030]
The earphone connection unit 170 as an output unit has a connection terminal 171 provided on
the top surface of the playback device 10 and a detection unit (not shown) that detects that the
earphone 20 is connected.
The connection terminal has a right channel terminal, a left channel terminal, and a ground
terminal for supplying audio for stereo to the earphone 20, and an information terminal used
when reading out the earphone ID from the earphone ID storage unit 210 At least have.
In addition to these, for example, a control information terminal for performing control such as
volume control, reproduction, stop, and skip may be provided.
[0031]
FIG. 3 is a block diagram showing an example of an electrical configuration of the earphone 20
shown in FIG.
As shown in this figure, the earphone 20 includes a playback device connection unit 200, an
earphone ID storage unit 210, an audio output unit 220, and a connection cable 230 as main
components.
[0032]
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Here, as shown in FIG. 1, the playback device connection unit 200 is formed of, for example, a
cylindrical member and a connection terminal provided at one end thereof. The connection
terminal has a right channel terminal, a left channel terminal, and a ground terminal for receiving
audio for stereo from the playback device 10, and an information terminal used when reading an
earphone ID from the earphone ID storage unit 210 At least have. Further, an earphone ID
storage unit 210 described later is disposed inside the cylindrical member, and the earphone ID
storage unit 210 is connected to the information terminal and the ground terminal of the
connection terminal. Further, a connection cable 230 is inserted into the cylindrical member, and
one end of the connection cable 230 is connected to the right channel terminal, the left channel
terminal, and the ground terminal. Also, the other end is connected to the audio output unit 220.
[0033]
The earphone ID storage unit 210 as a storage unit on the earphone side includes, for example, a
ROM (Read Only Memory) for storing an earphone ID and a read circuit for reading information
therefrom, and an instruction for reading information from the reproducing apparatus 10 The
read circuit reads out the earphone ID from the ROM and supplies it to the reproduction device
10. The earphone ID is a unique identifier assigned to each earphone. Note that the earphone ID
may be assigned to each type of earphone instead of each earphone.
[0034]
The voice output unit 220 is an electro-acoustic transducer, converts an electrical signal into
voice, and outputs the voice. As a conversion method, there are a dynamic type, a piezoelectric
type, an electrostatic type, and the like.
[0035]
The connection cable 230 is a cable for connecting the playback device connection unit 200 and
the audio output unit 220 as shown in FIG. 1, and, for example, copper wires corresponding to
the right channel and the left channel correspond to ground. It consists of two coaxial cables,
each covered by.
[0036]
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(B) Outline of operation of the embodiment
[0037]
Next, an outline of the operation of the embodiment of the present invention will be described.
When the user connects a predetermined earphone 20 to the playback device 10, the central
control unit 100 of the playback device 10 detects that the earphone 20 is connected by a signal
from a detection unit (not shown) of the earphone connection unit 170. .
Then, the central control unit 100 instructs the earphone identification unit 140 to acquire the
earphone ID. As a result, the earphone identifying unit 140 acquires the earphone ID from the
earphone ID storage unit 210 and supplies it to the central control unit 100.
[0038]
The central control unit 100 acquires setting information corresponding to the supplied
earphone ID from the setting information 153 of the memory 150. As setting information, there
are volume level, equalizer information, random reproduction type, character size, screen
background, library ID and the like.
[0039]
The central control unit 100 sets the environment based on the acquired setting information.
That is, the central control unit 100 sends a control signal to the music reproduction unit 160,
and sets the output sound volume level and the equalizer characteristic based on the acquired
sound volume level and the equalizer information.
[0040]
In addition, the central control unit 100 performs setting (for example, setting for each song,
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each album, and the like) when randomly reproducing a music based on the acquired random
reproduction type. Furthermore, the central control unit 100 sets the size of the character
information to be displayed on the display unit 110 based on the acquired character size, and
sets the background screen of the display unit 110 based on the screen background.
[0041]
Furthermore, the central control unit 100 acquires music information corresponding to the
acquired library ID from the music information 152 in the memory 150. The music information
is used to change the list of music (music list) displayed on the display unit 110 according to
each earphone (user) when a plurality of users use individual earphones. Ru. For example, when
used by user A, classical music is displayed in a list, and when used by user B, pop music is
displayed as a list.
[0042]
Then, the user can select and play a desired song from the song list set in this way. Also, at that
time, the volume level and the equalizer characteristic are set optimally according to the
earphone 20 being used.
[0043]
When another earphone is newly connected to the reproduction device 10, the same setting as
described above is performed to set the optimum setting for the earphone. Alternatively, settings
are made in accordance with the preferences of the user who uses them.
[0044]
As described above, according to the embodiment of the present invention, the reproduction
device 10 reads the earphone ID from the earphone 20 and performs the corresponding
environment setting. Thereby, for example, the volume level and the equalizer characteristic that
match the characteristics of the respective earphones 20 can be set.
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[0045]
When the earphones 20 are separately used for each user, an environment can be set according
to the preference of each user. For example, it is possible to perform screen display (character
size, screen background, etc.) in accordance with the preference of the user, or to display a list of
different songs for each user.
[0046]
In addition, when the earphone 20 is connected to the playback device 10, the earphone ID is
automatically read and the environment setting as described above is performed, so that the user
does not have to operate the operation unit separately. it can.
[0047]
(C) Details of operation of the embodiment
[0048]
Next, the detailed operation of the embodiment of the present invention will be described.
[0049]
FIG. 4 is a flow chart for explaining an example of processing executed in the playback device 10
shown in FIG.
When the process of the flowchart shown in this figure is started, the following steps are
performed.
[0050]
Step S10: The central control unit 100 determines whether or not the earphone 20 is connected
with reference to the output signal from the earphone connection unit 170. If the earphone 20 is
connected, the process proceeds to step S11, otherwise, Repeat the same process.
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More specifically, when the user connects the playback device connection unit 200 of the
earphone 20 shown in FIG. 1 to the connection terminal 171, a detection unit (not shown) built
in the earphone connection unit 170 outputs a detection signal Therefore, the central control
unit 100 detects that the earphone 20 is connected, and the process proceeds to step S11.
[0051]
Step S11: The central control unit 100 requests the earphone identification unit 140 to acquire
the earphone ID.
As a result, the earphone identifying unit 140 acquires the earphone ID from the earphone ID
storage unit 210 of the earphone 20 via the earphone connection unit 170. The acquired
earphone ID is supplied to the central control unit 100. More specifically, for example, “ID-1”
is acquired as the earphone ID.
[0052]
Step S12: The central control unit 100 refers to the setting information 153 of the memory 150,
and determines whether or not the acquired ID has been registered. Then, if it is registered, the
process proceeds to step S13, and otherwise, the process proceeds to step S14.
[0053]
More specifically, the information shown in FIG. 5 is registered as the setting information 153 of
the memory 150. In this example, the setting information 153 includes an earphone ID, a volume
level, equalizer information, random reproduction type, character size, screen background, and
library ID. Here, the “earphone ID” is a unique identifier assigned to each earphone. In this
example, information such as ID-1 and ID-2 is stored. "Volume level" is a level of volume set as a
default. Even when the sound signal of the same level is output, the sound pressure level to be
output is different depending on the sensitivity of the earphone, etc., so the sound pressure level
is used to equalize this. Moreover, since the volume level of preference changes for every user, it
also has the purpose of reflecting this.
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[0054]
"Equalizer information" is information for setting an equalizer. This is information used to cope
with these differences because the frequency characteristics are different for each earphone and
because the preferred frequency characteristics are different for each user. "Random playback
type" indicates the type when playing back a song at random, and in this example, it is selected
from two types: "song" to be randomly played back in units of songs and "album" to be randomly
played back in units of albums . The “character size” is information for setting the size of
characters displayed on the display unit 110. The “screen background” is, for example,
information for specifying an image (wallpaper image) to be displayed as the background of the
screen. The “library ID” is an ID for specifying a “library” for displaying a different music list
for each user.
[0055]
In the present example, since the acquired earphone ID “ID-1” is present in the first line of FIG.
5, it is determined that it has been registered, and the process proceeds to step S13.
[0056]
Step S13: The central control unit 100 acquires setting information corresponding to the
earphone ID acquired in step S11 from the memory 150.
In the present example, the information in the first line of FIG. 5 corresponding to the earphone
ID “ID-1” is acquired.
[0057]
Step S14: The central control unit 100 executes a "new registration process" for newly
registering an unregistered earphone ID and setting information corresponding thereto. The
details of this process will be described later with reference to FIG.
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[0058]
Step S15: The central control unit 100 executes the setting process based on the setting
information acquired in step S13 or the setting information newly registered in step S14. That is,
the central control unit 100 sets the volume level output by the music reproduction unit 160
based on the “volume level” of the setting information, and sets the equalizer characteristic of
the music reproduction unit 160 based on the “equalizer information”. Further, the central
control unit 100 sets the type for random reproduction based on the “random reproduction
type”. Further, the central control unit 100 sets the size of character information to be
displayed on the display unit 110 based on the “character size”, and an image displayed on the
background of the display unit 110 based on the “screen background” (for example, , Set the
wallpaper image).
[0059]
In this example, since "ID-1" is acquired as the earphone ID, "11" is set as the volume level as
shown in the first line of FIG. Further, as the equalizer characteristic, a characteristic
corresponding to “EQ-1” is set. In addition, as equalizer characteristics, patterns of a plurality
of equalizer characteristics are prepared in advance, identifiers such as EQ-1 and EQ-2 are given
to each of the plurality of patterns, and a desired pattern is specified by specifying the identifiers.
To be able to choose In addition to this, for example, the reproduction band may be divided into a
plurality of bands, and the level of each band may be designated by a numerical value. For
example, 0 to 100 Hz can be specified as +5 dB, and 200 to 1000 Hz as -5 dB.
[0060]
In addition, since "song" is specified as the random reproduction type, shuffle is performed in
units of music in random reproduction. Since “10” is specified as the character size, the size of
the character displayed on the display unit 110 is specified as “10”. Furthermore, since "Ba-1"
is designated as the screen background, the image data designated by this is used as the
background screen.
[0061]
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Step S16: The central control unit 100 acquires the music information specified by the library ID
from the music information 152 in the memory 150. In the present example, since “La-1” is
set as the library ID, the central control unit 100 acquires music information corresponding to
this from the music information 152 of the memory 150.
[0062]
FIG. 6 is a diagram showing an example of the structure of the music information 152. As shown
in FIG. In the example of this figure, an area is secured and allocated for each library ID. In this
example, although the area is secured so that the earphone ID and the library ID have a one-toone correspondence, a single library ID is associated with a plurality of earphone IDs. May be
[0063]
FIG. 7 is a diagram showing the correspondence between music information stored in each area
of FIG. 6 and music data. FIG. 7A is an example of information indicating the correspondence
between the artist and the music data, and FIG. 7B is an example of information indicating the
correspondence between the album and the music data. Is an example of information indicating
the correspondence between a genre and music data, and FIG. 7 (D) shows an example of music
data 151. As shown in this figure, each piece of music data is classified according to artist, album,
and genre, and each classification is associated with music data by a pointer. Specifically, music
data # 1 is classified into artist # 1, album # 3, and genre # 3, and these respective classifications
and music data # 1 are associated by pointer P-1. Note that such music information is present in
library ID units as shown in FIG. 6, and the contents of each are also different. For example,
although the library ID "La-1" has artists # 1 to #b, the library ID "La-2" has a completely
different artist group or artist # 1 to #b. I have an artist group that includes some or all.
[0064]
Step S17: The central control unit 100 executes a process of displaying the music list on the
display unit 110 based on the music information acquired in step S16. FIG. 8 is a diagram
showing an example of information displayed on the display unit 110 at this time. FIG. 8A is a
display example displayed based on the music information shown in FIG. In this example, "artist"
is selected as a classification method for displaying music on the left screen, and on the right
screen, a music list in which music is classified based on the artist is displayed. That is, as shown
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in FIG. 7A, since the music pieces classified as "artist # 1" are "music # 1" and "music # 2", these
are displayed, and "artist # 2" is displayed. The music to be classified is "music # 3", so these are
displayed, and the music classified to "artist # 3" is "music # 4" and "music # 5" (not shown). Is
displayed.
[0065]
FIG. 8B is an example of the music list displayed based on the music information when the library
ID is "La-2", for example. In this example, music pieces related to artists # 3 to # 5 are displayed.
That is, as in the case described above, "artist" is selected as a classification method when
displaying music on the left screen, and based on this, the music list on which music is classified
based on artist is displayed on the right screen ing. Specifically, "Song # 4" and "Song # 5" are
displayed as songs classified as "Artist # 3", and "Song # 6" is displayed as songs classified as
"Artist # 4". In addition, “music # 7” and “music # 8” are displayed as music classified as
“artist # 5”. Further, as shown in FIG. 5, in the setting information of the library IDs “La-1”
and “La-2”, the setting of the character size is different, and “La-1” is “10”, “La Since "2" is "12", the characters displayed in FIG. 8B are larger than the characters displayed in FIG. 8A.
[0066]
Step S18: The central control unit 100 determines whether or not the predetermined music is
selected from the music list by operating the operation button 121 of the input unit 120. If it is
selected, the process proceeds to step S19. The same process is repeated in cases other than the
above. That is, it is in a state of waiting for selection of music. Specifically, for example, with
reference to the display screen shown in FIG. 8A, the central control unit 100 operates the
operation button 121 of the input unit 120 to select a predetermined music, and the process
proceeds to step S19. Otherwise, it waits until a song is selected.
[0067]
Step S19: The central control unit 100 executes reproduction processing of the music selected in
step S18. That is, central control unit 100 acquires the music data specified in step S 18 from
memory 150 and supplies the music data to music reproduction unit 160. Thereby, the music
reproduction unit 160 starts reproduction of the selected music.
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[0068]
Step S20: The central control unit 100 determines whether to end the process, returns to step
S18 to repeat the same process if not ending the process, and ends the process otherwise.
[0069]
Next, the details of the “new registration process” shown in step S14 of FIG. 4 will be
described with reference to FIG.
When the process of the flowchart of this figure is started, the following steps are performed.
[0070]
Step S30: The central control unit 100 newly registers the earphone ID acquired in step S11 of
FIG. 4 in the setting information 153 of the memory 150. As a result, a new earphone ID is
additionally registered in the setting information shown in FIG.
[0071]
Step S31: The central control unit 100 displays a message instructing the display unit 110 to
input a default sound volume level, and acquires information on the sound volume level input by
operating the operation button 121.
[0072]
Step S32: The central control unit 100 displays a message instructing to input the equalizer
information on the display unit 110, and acquires the equalizer information input when the
operation button 121 is operated.
As a method of inputting equalizer information, a plurality of patterns are prepared in advance,
and a desired pattern is selected from these, or the reproduction frequency band is divided into a
plurality of bands, and It is possible to input the level of the band.
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[0073]
Step S33: The central control unit 100 displays a message instructing the display unit 110 to
input the random reproduction type, and acquires information on the type of random
reproduction input when the operation button 121 is operated. . Specifically, either “song” or
“album” is selected, and information on the selected one is acquired.
[0074]
Step S34: The central control unit 100 displays a message instructing to input the character size
on the display unit 110, and acquires information on the character size input by operating the
operation button 121. For example, characters of a plurality of sizes are illustrated, and when
any character is selected, the corresponding character size is acquired.
[0075]
Step S35: The central control unit 100 displays a message instructing the display unit 110 to
input the background of the screen, and acquires information on the screen background input by
operating the operation button 121. For example, a plurality of images are illustrated, and when
one of the images is selected, the corresponding file name is acquired.
[0076]
Step S36: The central control unit 100 registers the information input in steps S31 to S35 as one
of the setting information 153 in the memory 150. As a result, in the setting information shown
in FIG. 5, various types of information are registered in association with the earphone ID
registered in step S30.
[0077]
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Step S37: The central control unit 100 inquires the user whether or not to newly create a library,
and proceeds to step S38 if newly created, otherwise returns to the original processing (return)
Do. Note that an existing library may be used without creating a new library.
[0078]
Step S38: The central control unit 100 generates a library ID. That is, the central control unit 100
generates a new library ID that does not overlap with the existing library ID.
[0079]
Step S39: The central control unit 100 causes the user to input music information. Specifically,
the central control unit 100 causes the display unit 110 to display the music information stored
in the memory 150, and generates desired new music information from the display information.
At this time, the I / F unit 130 may be connected to a personal computer, new music data may be
added to the memory 150, and music information including the music may be generated.
[0080]
Step S40: The central control unit 100 registers the music information input in step S39 as one
of the music information 152 in the memory 150. That is, the central control unit 100
additionally creates a new area as shown in FIG. 6 and registers information as shown in FIGS. 7A
to 7C with respect to the newly generated area. Then, the process returns to the original process.
[0081]
As described above, in the embodiment of the present invention, the playback device 10 reads
the earphone ID from the earphone 20 and performs the corresponding environment setting.
Thereby, for example, the volume level and the equalizer characteristic that match the
characteristics of the respective earphones 20 can be set.
[0082]
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Further, according to the present embodiment, for example, it becomes possible for the user to
use earphones for each genre of music. For example, when the earphone whose earphone ID is
"ID-1" is used, only the music belonging to genre # 1 and genre # 2 is displayed as the music list,
and the earphone whose ID is "ID-2" When is used, only songs belonging to genre # 3 and genre
# 4 can be displayed as a music list.
[0083]
In addition, when the earphones 20 are used separately for each user, it is possible to set an
optimal environment according to each user. For example, it is possible to perform screen display
(character size, screen background, etc.) in accordance with the preference of the user, or to
display a list of different songs for each user.
[0084]
In addition, when the earphone 20 is connected to the playback device 10, the earphone ID is
automatically read and the environment setting as described above is performed, so that the user
does not have to operate the operation unit separately. it can.
[0085]
(F) Modified embodiment
[0086]
The embodiments described above are preferable examples of the present invention, but the
present invention is not limited to these, and various modifications and changes can be made
without departing from the scope of the present invention. is there.
[0087]
For example, in the above embodiment, only the earphone ID is stored in the earphone 20. For
example, as shown in FIG. 10, the earphone ID is stored together with information indicating the
characteristics of the earphone together with the earphone ID. It may be stored in unit 210.
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In the example shown in FIG. 10, “connection type”, “earphone type”, “impedance value”,
“sensitivity”, and “frequency characteristic” are stored together with the earphone ID.
Here, “connection type” indicates wired or wireless.
Wired indicates that the reproduction device 10 and the earphone 20 are connected by a
connection cable, and wireless indicates that the reproduction device 10 and the earphone 20
are connected by wireless (for example, infrared). "Earphone type" indicates the type of
earphone, such as canal type inserted into the ear canal, inner ear type hung on the outer ear,
headband type hung on the head, and the like. Also, “impedance value” indicates the value of
impedance of the earphone. Also, the sensitivity indicates the output sound pressure level (dB /
mW) for 1 mW. Also, the frequency characteristic indicates the output sound pressure at each
frequency. In this example, a plurality of patterns of frequency characteristics are prepared, and,
for example, an approximation is selected from the plurality of patterns, and a corresponding
identifier is stored. As described above, the reproduction band may be divided into a plurality of
bands, and the output level of each band may be stored as a numerical value.
[0088]
When the earphone 20 having such information is connected to the reproduction device 10, the
earphone identification unit 140 of the reproduction device 10 acquires not only the earphone ID
but also the information indicating the characteristic of the earphone described above. Then,
based on the acquired earphone ID, as described above, the music information is specified and
the corresponding music list is displayed, and the random reproduction type, the character size,
the screen background, etc. are set.
[0089]
Further, the volume level is set using the impedance value and the sensitivity, and the equalizer
characteristic is set so that the reproduction characteristic is flat with reference to the frequency
characteristic. For example, for the volume level, the output sound pressure increases in inverse
proportion to the impedance and in proportion to the sensitivity, so based on these values and
the desired output sound pressure level (for example, 90 dB), Set When the sensitivity is
constant, for example, it is possible to uniquely determine the volume level by using a
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correspondence table of impedance and volume level as shown in FIG. For example, when the
impedance value is 16 ohms, "8" is set as the volume level.
[0090]
As for the equalizer characteristic, for example, when using an identifier (example in FIG. 10)
indicating a pattern of the frequency characteristic, the equalizer characteristic corresponding to
the stored identifier is acquired, and the equalizer characteristic is set based on the characteristic.
Do. Also, if the output sound pressure for each band is stored as a numerical value (for example,
if 0 to 100 Hz is +5 dB, 200 to 1000 Hz is -2 dB, etc.), the equalizer characteristic is set to
interpolate it. Good. Specifically, 0 to 100 Hz is -5 dB, and 200 to 1000 Hz is set to +2 dB.
[0091]
The setting of the output sound pressure level and the equalizer characteristic may be set in
consideration of the earphone type. That is, since the characteristic of the transmission path of
the sound wave formed between the earphone and the tympanic membrane differs depending on
each type, for example, in the case of the inner ear type, since the sound wave leakage is small,
the volume level is set lower. Also, since the resonance in the ear canal significantly occurs, the
level of the frequency of the equalizer is set low.
[0092]
Moreover, in the above embodiment, although the earphone ID stored in the earphone ID storage
unit 210 is acquired by wired communication, it can be acquired by wireless communication.
That is, the earphone identification unit 140 may be configured to acquire the earphone ID by
infrared rays or radio waves. In that case, for example, an earphone ID can be exchanged using
an RF (Radio Frequency) tag. As a result, by attaching the RF tag storing the earphone ID to the
earphone not having the earphone ID storage unit 210, it is possible to exhibit the same function
as that described above.
[0093]
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Further, in the above embodiment, as shown in FIG. 6, the earphone ID and the library ID are
made to have a one-to-one correspondence. However, for example, a single library ID may be
associated with a plurality of earphone IDs. According to such a method, for example, it is
possible to cope with the case where the same user uses a plurality of earphones properly.
[0094]
Further, although only the case where setting information is newly registered has been described
above, the registered setting information may be edited. Specifically, the information to be
corrected is input by the process shown in steps S31 to S35 in FIG. 9, and in the process of step
S36, the setting information is edited by overwriting the existing setting information with the
new setting information. It becomes possible. Similarly, the registered library may be made
editable. Specifically, as in the case of step S39, the registered library can be edited by editing
(adding or deleting) the registered library or adding a new music.
[0095]
Further, in the above embodiment, the music data is stored in individual areas as shown in FIG. 6,
but the music data is, for example, centrally stored in the same area, and earphones are used. The
music information shown in FIG. 7 may be prepared for each user or each user, and may be
managed individually. According to such a method, it is possible to store overlapping music data
and prevent the storage capacity from being wasted. Further, instead of centrally managing
music data, music data may be stored separately for each user or genre, for example.
[0096]
In the above embodiments, the case of reproducing data containing only music is described as an
example, but in addition to this, for example, image data and other data (for example, character
data) are reproduced. You may do it.
[0097]
Further, in the above embodiments, a portable playback device that performs only playback of
music has been described as an example, but the present invention can be applied to other
devices.
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For example, the present invention can be applied to a stationary playback device, or to a device
that plays back data stored in a storage medium other than a memory (for example, an optical
disk, HDD (Hard Disk Drive)). The present invention can also be applied to mobile phones and the
like. Furthermore, the present invention can be applied to an apparatus having not only the
reproduction function but also the recording (or recording) function.
[0098]
The present invention can be applied to, for example, a portable playback device.
[0099]
FIG. 1 is a perspective view of a playback device according to an embodiment of the present
invention.
It is a block diagram which shows the structural example of the reproducing | regenerating
apparatus shown in FIG. It is a block diagram which shows the structural example of the
earphone shown in FIG. It is a flowchart explaining an example of the process performed in the
reproducing | regenerating apparatus shown in FIG. It is a figure which shows an example of the
setting information shown in FIG. It is a figure which shows an example of the storing state of the
music information shown in FIG. It is a figure which shows an example of the music information
shown in FIG. It is a figure which shows the example of a display of a music list. It is a flowchart
which shows the detail of the new registration process shown in FIG. It is an example of the
information stored with earphone ID in other embodiment. It is an example of the table which
matched the impedance and the volume level.
Explanation of sign
[0100]
DESCRIPTION OF SYMBOLS 10 reproduction apparatus 20 earphone 100 central control
apparatus (setting means) 110 display part (display means) 140 earphone identification part
(acquisition means) 150 memory (storage means) 152 music information (management
information) 160 music reproduction part (reproduction means) 170 Earphone connection unit
(output means) 210 Earphone ID storage unit (storage unit on the earphone side)
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