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JP2003189389

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DESCRIPTION JP2003189389
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker built-in type reproducing apparatus, and more particularly to a speaker built-in type
reproducing apparatus suitable for reproducing and listening to sound based on music software
such as a DVD player and a CD player.
[0002]
2. Description of the Related Art An apparatus for reproducing music software is provided with
speakers respectively on the left and right sides of an apparatus main body, and when
reproduced, different signal sounds for the left and right speakers, that is, signals for the left
channel for the left speaker Is output, and a signal for the right channel is output to the right
speaker, so that the left and right sounds that are directly opposed to the device body are
reproduced to obtain a stereo effect. As described above, in the apparatus for reproducing music
software, the first signal and the second signal are specified and output to the left and right
speakers, respectively.
[0003]
By the way, although today's speaker built-in type reproduction devices are provided in a small
and thin type, such type is for convenience and space change on space, etc. Alternatively, there
are cases where it is desirable to change the way of placing in consideration of the interior, etc.
There are also cases in which the horizontal type is originally made vertical and vice versa.
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[0004]
However, in the conventional speaker built-in type reproducing apparatus, the posture to be used
is determined in advance, and the L and R channel signals output to each of the plurality of
speakers are also determined. Only in the state, the vertical type could only be used in the
vertical position.
That is, since the L and R channel signals to be output to the speakers are fixed, if the horizontal
type is placed vertically, the speakers are vertically aligned, and the L and R channels (or R and L
channels) The result is that the playback sound of can be heard from above and below.
Therefore, the stereo effect that the reproduced sound can be viewed separately from the left and
right is weakened, and when the user changes the posture and listens, the left and right
reproduced sound can not be heard from a predetermined direction.
[0005]
SUMMARY OF THE INVENTION The present invention has been made in consideration of such
circumstances, and an object thereof is to provide a speaker built-in type reproducing apparatus
which can obtain stereo reproduction sound according to the setting even if it is changed.
[0006]
[Means for Solving the Problems] In order to achieve the above object, the present invention
proposes the following means.
In the invention according to claim 1, a speaker built-in type reproducing apparatus in which a
plurality of speakers are provided in an apparatus body, a plurality of channel signals are
separately supplied to the plurality of speakers, and a plurality of channel signals are output
from the speakers. In the above apparatus, the apparatus further comprises switching means for
switching channel signals supplied to the speakers in accordance with the attitude of the device
body. According to the speaker built-in type reproducing apparatus according to the present
invention, even when the attitude of the device body is changed, the channel signal supplied to
each speaker can be switched. Therefore, regardless of the attitude of the device body, the stereo
signal is always You can listen to it. According to a second aspect of the present invention, in the
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speaker built-in type reproducing apparatus according to the first aspect, the device main body is
configured such that the second housing is connected to the first housing so as to be position
changeable. , And one or more speakers are provided in each of the second housings. According
to the speaker built-in type reproducing apparatus according to the present invention, it is
possible to change the position of the first case and the second case to change the attitude of the
device body, and also in this case, the reproduction sound is good. You can listen in the state.
According to a third aspect of the present invention, in the speaker built-in type reproducing
device according to the second aspect, the device body is formed in a box shape in which the first
housing and the second housing are long in one direction under normal conditions. The first case
and the second case can be bent in an L shape as viewed from one side. According to the speaker
built-in type reproducing apparatus according to the present invention, the device body can be
used as a box shape, and the first case and the second case can be used by being bent in an L
shape. The reproduced sound can be heard in a good condition.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be
described below with reference to the drawings. 1 to 5 are views showing a DVD player to which
a speaker built-in type reproducing apparatus according to one embodiment of the present
invention is applied, wherein FIG. 1 is a front view, and FIGS. 2 and 3 are a top view and a rear
view. 4 and 5 are a side view and a front view when the DVD player is used vertically. In FIGS. 1
to 3, reference numeral 1 denotes a speaker built-in type reproducing apparatus configured as a
DVD player, 2 denotes an apparatus main body, and 3 denotes a software readout unit provided
in the apparatus main body 2. In the speaker built-in type reproducing apparatus 1, the
apparatus main body 2 is used in a horizontal orientation in a normal state as shown in FIG. 1,
and is thin in the vertical direction and has a box shape long in the left and right directions. As
seen from the top, it has a long shape on the left and right. Then, for example, when music
software is set in the device main body 2, the data of the music software is read by the reading
unit 3 so that the signals for the L channel and the R channel are transmitted to the speakers 8a
to 8d shown in FIG. The signal for each is output. The device body 2 has a configuration in which
the second housing 2B is connected to the first housing 2A so that position change is possible,
the speakers 8a and 8c are provided in the first housing 2A, and the second housing 2B speakers
8b and 8d are provided. It is done. In the normal state, the device body 2 is formed such that the
first housing 2A and the second housing 2B have a box shape elongated in one direction as
described above, and as described later, the first housing 2A, The second housing 2B is
configured to be bendable so as to be L-shaped when viewed from one side.
[0008]
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The readout unit 3 has a tray 4 for setting music software (not shown) on the left side of the
device body 2, an operation unit 5 provided on the top, and electronic components (not shown)
that constitute a reproduction circuit. When the DVD as music software set on the tray 4 is
driven, the data of the DVD is read, and the read data is converted into an audio signal consisting
of a signal for L channel and a signal for R channel. Convert and output. Hereinafter, the signal
for L channel is referred to as a first signal, and the signal for R channel is referred to as a second
signal. In addition, in this embodiment, a remote controller (not shown) is prepared separately
from the operation unit 5 of the device body 2 so that the same function as the operation unit 5
can be performed at the time of use.
[0009]
The second housing 2B is attached to the first housing 2A of the device body 2 so as to be
changeable in position. In the normal state, the first housing 2A and the second housing 2B form
a straight line along a horizontal line, as shown in FIG. 4 When the second case 2B is bent as
shown in FIG. 5, the second case 2B is turned down and used as a base, so that the device body 2
is placed in a vertically placed posture that intersects the horizontally placed posture It can be
done.
[0010]
Therefore, the inclined surface 7 is formed at the boundary between the first housing 2A and the
second housing 2B, and the first housing 2A and the second housing 2B relatively rotate along
the inclined surface 7. As shown in FIG. 4, the device body 2 can be placed in the vertical position
by using the second housing 2 </ b> B as a base. In this case, although not shown, the first
housing 2A and the second housing 2B are provided with a mechanism having a rotary shaft
joint or a pivot joint, and by the mechanism, the first housing 1 and the second housing 2B But
can be displaced between a straight horizontal position and an L-shaped vertical position in the
cross direction.
[0011]
At that time, the first leg 10 is provided on the left side of the first housing 2A, and the second
leg 11 is provided on the side of the first housing 2A of the second housing 2B. By seating the
second leg 11 and the tip end portion of the second housing 2B as shown in FIG. 4, it is possible
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to obtain a vertically placed posture in a stable state of the device body 2.
[0012]
Among the plurality of speakers 8a to 8d, the speakers 8a and 8b are respectively provided on
the left and right sides of the front of the device body 2 as shown in FIG. 1, and the speakers 8c
and 8d are on the left and right sides of the back of the device body 2 as shown in FIG. , And
outputs the first signal and the second signal from the speakers 8a to 8d based on the data of the
music software so as to output as stereo sound.
[0013]
In such an apparatus body 2, when the apparatus body 2 is used in a horizontal orientation or in
a vertical orientation, the first and second signals are selectively output to the speakers 8a to 8d.
A switching circuit 9 (switching means) is provided.
[0014]
The switching circuit 9 switches the first and second signals output to the speakers 8a to 8d
according to the posture when the device body 2 is used in the horizontal posture and in the
vertical posture. Although not shown in detail, when the apparatus body 2 is in the horizontal
orientation, the circuit switching is performed based on the attitude, so that the speakers 8a and
8c of the front and the back of the apparatus body 2 are firstly While the signal is output, while
the second signal is output to the speakers 8b and 8d on the front and back of the second
housing 2B, when the device body 2 is in the vertical orientation, the circuit switching is
performed based on the orientation As a result, as shown in FIG. 5, the first signal is output to the
speakers 8a and 8b on the front side of the device body 2, and the second signal is output to the
speakers 8c and 8d on the back side. There is.
The switching circuit 9 is automatically switched in accordance with the attitude of the device
body 2.
[0015]
Since the speaker built-in type reproducing apparatus 1 of this embodiment is configured as
described above, in order to play music software, the music software DVD is set in the tray 4 of
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the device body 2 and the data of the DVD is When read by the reading unit 3, the first and
second signals are output as reproduced sound from the speakers 8a to 8d based on the data.
At this time, when the apparatus body 2 is used in the normal horizontal posture, as shown in
FIG. 1, the switching circuit 9 performs circuit switching based on the posture, and thus the first
and the second according to the horizontal posture. The second signal is output to the speakers
8a to 8d.
[0016]
That is, the switching circuit 9 outputs the first signal to the left speaker 8a on the front of the
device body 2 and the left speaker 8c on the rear, and the speaker 8b on the front of the second
housing 2B and the speaker 8d on the rear Since the second signal is output to the listener, the
listener facing the device main body 2 receives the left and right sounds corresponding to his /
her left / right direction, that is, the first signal from the left speakers 8a and 8c (L channel And
the second signals (signals of R channel) from the right speakers 8b and 8d, respectively, and a
good stereo effect can be obtained.
[0017]
On the other hand, when the apparatus main body 2 is used in the vertical mounting posture as
shown in FIGS. 4 and 5 unlike the horizontal mounting posture, the switching circuit 9 switches
the circuit based on the posture to the vertical mounting posture. Corresponding signals are
output to the speakers 8a to 8d, respectively.
That is, as shown in FIG. 5, the first signal is output to the speaker 8a of the first housing 2A on
the front side and the speaker 8b of the second housing 2B, and to the speakers 8c and 8d on the
back side. Since the second signal is output, the user corresponding to the main unit 2 can
reproduce the sound corresponding to his / her left / right direction, and a good stereo effect can
be obtained.
[0018]
Therefore, according to this embodiment, the switching circuit 9 selectively switches the first and
second signals to the speakers 8a to 8d in accordance with the posture based on the horizontal
posture and the vertical posture of the device body 2. Since the output is performed, good
reproduction sound can be obtained even in the case of using the apparatus body 2 in the
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horizontal installation posture as shown in FIG. 1 as well as in the vertical installation posture as
shown in FIG.
[0019]
Moreover, since the speakers 8c and 8d are disposed not only on the front side of the device
body 2 but also on both sides on the back side, the reproduced sound with almost no sense of
incongruity regardless of the horizontal and vertical postures. Thus, the device body 2 can be
reliably used in both the horizontal orientation and the vertical orientation.
[0020]
As a result, even if the orientation is changed between the horizontal orientation and the vertical
orientation, the stereo effect according to the changed orientation can be obtained. The usability
in case of is improved.
[0021]
Although the speakers 8a and 8b face the listener in the case of the horizontal posture, the
speakers 8a to 8d do not face the listener but in the direction orthogonal to the listener when the
vertical posture is used. In such a case, a non-directional speaker or a speaker having wide-angle
directivity may be used because the listener may not be able to clearly distinguish the
reproduced sound of the first and second signals. It is desirable to adopt.
[0022]
Further, in the illustrated embodiment, when the placement of the device main body 11 is
changed, the switching circuit 9 automatically switches the circuit based on that, thereby
selectively switching the first and second signals to the respective speakers 8a to 8d. However,
the present invention is not limited to this, and the listener can selectively switch and use it.
Hereinafter, such an embodiment will be described with reference to FIGS.
[0023]
6 to 8 show a second embodiment of the present invention.
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In these figures, the device body 2 is provided with a reading unit 3 and four speakers 8a to 8d.
Among the four speakers 8a to 8d, the speakers 8a and 8b are provided on the left and right
sides of the front of the device body 2, and the speakers 8c and 8d are provided on both sides of
the back of the device body 2.
[0024]
In this embodiment, the switching circuit 9 for outputting the first and second signals to the
speakers 8a to 8d is switched by the operation of the listener.
That is, the switching circuit 9 in this case is switched when the listener operates the operation
unit 5 (or remote controller) when the apparatus body 2 is used in the horizontal orientation as
shown in FIGS. The first signal is output to the left speakers 8a and 8c on the front and back of
the device body 2, and the second signal is output to the right speakers 8b and 8d on the front
and back, according to FIG. ing.
[0025]
Further, when the device body 2 is used in the vertical orientation as shown in FIG. 8, when the
listener switches the switching circuit 9 accordingly, the first signals are sent to the left and right
speakers 8a and 8b on the front surface of the device body 2. While being output, the second
signal is output to the left and right speakers 8c and 8d on the back surface, so that the left and
right speakers 8a and 8b and the right speakers 8c and 8d can reproduce the distributed signal.
In this case, the right end face of the device body 2 is installed to set the device body 2 in the
vertical orientation, and the vertical orientation of the device body 2 can be maintained by the
balancer 12 provided at the bottom of the device body 2. ing.
[0026]
When the listener operates the switching circuit 9, the task of assigning the first and second
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signals to the switching circuit 9 for each of the speakers may be complicated, so for example,
the switch for horizontal orientation and the vertical If a switch for setting posture is provided in
advance and the listener operates any switch to correspond to the posture of the device body 2,
the first and second signals corresponding to the posture of the device body 2 are desired. It can
also be set to be output to the speakers 8a to 8d.
[0027]
According to this embodiment, when the apparatus main body 2 is used in the horizontal
installation posture or in the vertical installation posture, the switching circuit is activated by
switching of the listener, and the respective speakers 8a to 8d are accordingly operated. Because
the first and second signals are selectively output, this also makes it possible to exhibit the stereo
effect well in both the horizontal orientation and the vertical orientation, basically An effect
substantially similar to that of the above-described embodiment can be obtained.
[0028]
Further, in this embodiment, since the device body 2 is not divided into two, and the first and
second signals output to the speakers 8a to 8d are switched by the operation of the listener, the
device configuration is simplified. As compared with the above-described embodiment, it can be
manufactured at a lower cost.
[0029]
In the illustrated embodiment, an example using a DVD as music software is shown, but music
software such as CD and MD can be applied to those playing cassette tapes, as well as music
software. The same applies to a software reproduction apparatus.
Also, although an example in which a total of four speakers 8a to 8d are disposed two on each
side of the front and back of the device main body 2 has been shown, the speakers 8a and 8b on
the front side and the speakers 8c on the back side , 8d, for example, can be provided with a
center speaker or the like that performs a woofer function, and the first and second signals can
be switched and output to the center speaker as with the speakers 8a to 8d according to the
displacement of the posture. .
[0030]
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As described above, according to the first aspect of the present invention, even if the attitude of
the device body changes, the channel signal is switched by the switching means, whereby an
appropriate channel signal of the speaker is supplied. There is an effect that always good stereo
reproduction sound can be obtained.
Further, according to the invention of claim 2, it is possible to change the position of the first
case and the second case to change the posture of the device body, and in this case as well, the
reproduction sound is good. You can listen in the state.
Moreover, according to the invention which concerns on Claim 3, in addition to being able to use
an apparatus main body as box shape shape, a 1st housing | casing and a 2nd housing | casing
can be bent and used in L shape, and also in this case You can listen to the sound in good
condition.
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