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JP2011023783

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DESCRIPTION JP2011023783
The present invention provides an acoustic device capable of switching directivity and setting an
optimum sound field according to the position of a user etc., and an electronic apparatus
provided with the acoustic device. A speaker unit 3 is provided, in which a panel unit 8 to which
a speaker device 9 is attached is pivotably connected by a connecting portion 10 at a front
surface 2a of a main body portion 2 of a center speaker device 1. Based on the position, the CPU
5 instructs the speaker unit driver 4 provided inside the main body 2 to bend the speaker unit 3
in a predetermined form, and the speaker unit driver 4 responds to the instruction from the CPU
5 The motor 23 of the piston portion 20 provided corresponding to each connecting portion 10
is driven to project the moving portion 22 from the main body portion 2 and rotate the
connecting portion 10 to bend the speaker unit 3. [Selected figure] Figure 1
Acoustic device and electronic device provided with the acoustic device
[0001]
The present invention relates to, for example, an acoustic device installed in an instrument panel
of a vehicle or the like, capable of changing the directivity of sound in an arbitrary direction, and
an electronic device provided with the acoustic device.
[0002]
For example, in an automobile as a vehicle, in addition to the speakers installed behind the door
in the vehicle compartment and the rear seat, a center speaker is installed in an instrument panel
(hereinafter referred to as an instrument panel) for assisting these speakers. (See, for example,
Patent Documents 1 to 3).
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1
[0003]
In the on-vehicle acoustic device described in Patent Document 1, a speaker is disposed on a
front panel of a head unit, and a control unit is attached to the front surface of the speaker via a
support member.
[0004]
In the on-vehicle audio device described in Patent Document 2, a center speaker is rotatably
integrally attached to the operation panel of the on-vehicle audio device via a support member,
and the center speaker is mounted by a motor from the storage position along the operation
panel Is pivoted to the use position where it is directed forward.
[0005]
The sound device described in Patent Document 3 covers the entire front surface of the sound
device body, and a speaker is provided on the back side of the operation panel portion attached
to the sound device body so as to be openable and closable.
[0006]
JP-A-7-298381 JP-A-2000-295683 JP-A-2001-167568
[0007]
The on-vehicle acoustic device described in Patent Document 1 has a problem that it is difficult
to switch directivity for various seats such as a driver's seat and a passenger seat because the
speakers are fixed.
[0008]
Further, the on-vehicle audio device described in Patent Document 2 and the sound device
described in Patent Document 3 are only one way of turning the panel on which the speaker is
installed, for example, a driver's seat and a passenger's seat Etc. could not have directivity in
multiple directions.
In addition, it is necessary for the user to determine the direction by turning the panel on which
the speaker is installed, and the speaker can not automatically detect the user and turn it in that
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direction. .
[0009]
Furthermore, in order to cause the problems as described above, conventionally, it has been
necessary for the user to set the sound field in accordance with the boarding position and the
number of boarders.
In addition, even when setting automatically, it was not always possible to set an optimal sound
field.
[0010]
Therefore, the present invention can change, for example, directivity or give directivity in a
plurality of directions, and can set an optimal sound field according to the position of the user
etc. It is an object of the present invention to provide an electronic device provided with an audio
device.
[0011]
In order to solve the above-mentioned subject, an acoustic device according to claim 1 is an
acoustic device provided with a plurality of speakers, and connection means for connecting the
plurality of speakers in a bendable manner, and the above-mentioned connection means in the
connection means It is characterized by comprising: changing means for changing a bending
state between a plurality of speakers; and bending state indication means for instructing the
changing means to a bending state among the plurality of speakers in the connection means.
[0012]
It is a block diagram of the center speaker apparatus concerning the 1st Example of this
invention.
It is a front view of the speaker unit shown by FIG.
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It is the side view which showed the rail part and movable part which were shown by FIG.
It is explanatory drawing which shows the structure of the connection part of the speaker unit
shown by FIG.
It is explanatory drawing which showed the structure of the speaker unit drive part shown by
FIG.
It is the flowchart which showed the operation | movement which changes the bending state of
the speaker unit shown by FIG.
It is a seating chart of the vehicle in which the center speaker apparatus shown by FIG. 1 was
attached.
It is explanatory drawing which showed the speaker unit bent by the flowchart shown by FIG. It
is explanatory drawing which showed the speaker unit bent by the flowchart shown by FIG. It is
explanatory drawing which showed the speaker unit bent by the flowchart shown by FIG. It is
explanatory drawing which showed the speaker unit bent by the flowchart shown by FIG. It is the
flowchart which showed the operation | movement which changes the bending state of the
speaker unit in the center speaker apparatus concerning the 2nd Example of this invention. It is
the flowchart which showed the operation | movement which changes the bending state of the
speaker unit in the center speaker apparatus concerning the 3rd Example of this invention. It is
the flowchart which showed the sound pressure interlocking speaker drive process shown by
FIG. It is explanatory drawing which showed the sound pressure interlocking speaker drive
process shown by FIG.
[0013]
Hereinafter, an acoustic device according to an embodiment of the present invention will be
described. In the sound device according to the embodiment of the present invention, the
connection means connects the plurality of speakers in a bendable manner, and the bending state
indication means instructs the changing means to indicate the bending state among the plurality
of speakers in the connection means. Since the means changes the bending state of the plurality
of speakers in the connecting means, the bending state indication means indicates the direction
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in which directivity is desired, and the plurality of speakers connected by the changing means in
accordance with the instruction. The directivity can be switched in any direction by changing the
bending state. Moreover, directivity can be given to a plurality of directions by bending the
plurality of speakers so as to be directed substantially in a plurality of directions.
[0014]
Further, the bending state instruction means may include detection means for detecting the
position of the user, and may instruct the changing means on the bending state of the plurality of
speakers based on the detection result of the detection means. By doing this, the directivity can
be automatically directed to the position of the user.
[0015]
In addition, sound field setting means for setting the sound fields output from the plurality of
speakers may be provided based on the instruction of the bending state instruction means. By
doing this, it is possible to set the bending state of a plurality of speakers, that is, the optimal
sound field according to the directivity.
[0016]
In addition, the image processing apparatus may further include source determination means for
determining the content of the input audio source, and the bending state instruction means may
instruct the changing means on bending states of the plurality of speakers based on the
determination result of the source determination means. By doing this, it is possible to bring
about an appropriate speaker bending depending on the source content to be input, for example,
the content of the source such as a television or CD, or a music program or a news program.
[0017]
In addition, the sound field setting means may set the sound fields output from the plurality of
speakers based on the determination result of the source determination means. By doing this, it is
possible to set an optimal sound field according to the source content to be input, for example,
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the content of the source such as a television or CD, or a music program or a news program.
[0018]
Further, the sound pressure of the sound source to which the source discrimination means is
input may be extracted, and the bending state instruction means may instruct the changing
means to change the bending state of the speaker in accordance with the sound pressure. By
doing this, since the state of the speaker changes in accordance with the sound pressure, for
example, it can be entertained for the user by changing it in accordance with the sound pressure
of the bass.
[0019]
Further, a plurality of speakers connected by the connecting means are arranged in a row on one
surface of the main body, and the changing means is capable of moving both ends of the plurality
of speakers in the connecting direction of the plurality of speakers on one surface. Moving
means, and pushing means provided corresponding to the connecting means and movable in and
out of the main body through the opening provided on one surface so as to change the bending
state by pushing out the connecting means. It is also good. By doing this, the bending state of the
plurality of speakers can be changed by the pushing means that pushes the connecting means
from the rear of the plurality of speakers arranged in a line on one surface.
[0020]
In addition, the above-described acoustic device may be provided in an electronic device. By
doing this, it is possible to switch the directivity of the built-in speaker in a car navigation system,
a car stereo, a home appliance, etc., and to set an optimum sound field according to the position
of the user etc. .
[0021]
A center speaker apparatus 1 as an audio apparatus according to a first embodiment of the
present invention will be described with reference to FIGS. 1 to 11. The center speaker device 1
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is attached to an instrument panel between the driver's seat and the front passenger seat of a
vehicle on which another in-vehicle speaker device is attached. And the center speaker apparatus
1 is provided with the main-body part 2 and the speaker unit 3 as shown in FIG. Hereinafter, an
arrow Y parallel to a direction in which the moving unit 22 described later moves in and out of
the main unit 2 is referred to as a depth direction, and a rail unit 13 described later is provided.
An arrow X orthogonal to the above is called a width direction, and an arrow Z orthogonal to
both the depth direction Y and the width direction X is called a thickness direction.
[0022]
The main body portion 2 is formed in a substantially box shape, and a speaker unit 3 and a rail
portion 13 are provided on the front surface 2 a as one surface facing the occupant such as a
driver. Further, the main body unit 2 internally includes a speaker unit drive unit 4, a CPU 5, an
audio processing unit 6, and an operation unit 7.
[0023]
As shown in FIG. 2 and FIG. 3, a pair of rail portions 13 is provided at both ends in the thickness
direction Y of the front surface 2 a of the main body portion 2 and extends along the width
direction X. The rail portion 13 includes a concave groove portion 13a in which a movable
portion 11 described later travels, and a holding portion 13b for holding the movable portion 11
so as not to be separated from the rail portion 13. Further, stoppers (not shown) for restricting
the movement of the movable portion 11 are provided at both ends of the rail portion 13.
[0024]
The speaker unit 3 as a plurality of speakers includes a panel unit 8, a speaker device 9, a
connecting unit 10, a movable unit 11, and a shaft unit 12.
[0025]
The panel unit 8 is formed in a flat plate shape, and is attached to the surface of the panel unit 8
so that the diaphragm of the speaker device 9 is parallel to the panel unit 8, that is, sound is
emitted from the surface.
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The speaker device 9 is composed of a diaphragm and a circuit for driving the diaphragm. Of
course, it is preferable that the speaker device 9 have a short depth direction Y. The panel unit 8
and the speaker device 9 constitute a speaker as described in the claims.
[0026]
The connecting portion 10 as the connecting means is provided with substantially cylindrical
hinge portions 10 a and 10 b integrally formed with the panel portion 8. As shown in FIG. 4A, the
hinge portion 10a is provided with an insertion hole 10a1 into which a pivot shaft 10b1
described later is inserted at the other end of the hinge portion 10a. The hinge portion 10 b
includes a substantially cylindrical rotation shaft 10 b 1 protruding from one end of the hinge
portion 10 b. Then, by inserting the rotation shaft 10b1 into the insertion hole 10a1, the
adjacent panel portions 8 are rotatably connected to each other around the thickness direction Z.
That is, a plurality of speakers are connected together so as to be bendable. Further, as shown in
FIG. 4B, in the connecting portion 10, the insertion holes 10a1 and the rotation shaft 10b1 are in
the direction in which the panel portions 8 are parallel to each other by urging means such as a
spiral torsion coil spring 10c. That is, the speaker unit 3 is urged in a direction to be linear along
the width direction X.
[0027]
The movable portion 11 as a moving means is formed in a substantially disk shape, and a pair is
provided at both ends in the thickness direction Z of the shaft portion 12. The movable portion
11 is rotatably supported with respect to the shaft portion 12 about the thickness direction Z,
and is fitted in the rail portion 13 so as to be able to travel in the width direction X. The movable
portion 11 is configured of, for example, a bearing. That is, it is movable in the connecting
direction of the plurality of speakers.
[0028]
The shaft portion 12 is integrally formed at an end portion of the panel portion 8 which is
formed in a substantially cylindrical shape and which constitutes both ends of the speaker unit 3.
The shaft portion 12 is provided with a pair of movable portions 11 at both ends in the thickness
direction Z.
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[0029]
Then, the wiring from the main body 2 is connected to one end of the speaker unit 3, and the
respective speaker devices 9 are electrically connected through the respective panel portions 8
and the connecting portion 10.
[0030]
As shown in FIG. 5, the speaker unit driving unit 4 as the changing unit is provided with a
plurality of piston units 20 corresponding to the connecting unit 10.
The speaker unit drive unit 4 also includes a control circuit (not shown) that drives a motor 23 of
the piston unit 20 described later according to an instruction from the CPU 5.
[0031]
The piston unit 20 as the pushing means includes a fixed rack 21 and a moving unit 22. The
fixed rack 21 is accommodated in a plurality of openings 26 opened along the width direction X
of the front surface 2 a of the main body 2 and is fixed to the main body 2. The fixed rack 21 is
formed in a linear shape, and its longitudinal direction is disposed in parallel with the abovedescribed depth direction Y. The fixed rack 21 is provided over the entire length in the depth
direction Y of the main body 2. The opening 26 is open at a position overlapping the position of
the connecting portion 10 when the speaker unit 3 on the front surface 2 a of the main body 2 is
linear. That is, the pushing means is provided corresponding to the connecting means.
[0032]
The moving portion 22 is rod-shaped and has a tip end 22a exposed from the opening 26 housed
in the main body 2, and a rear end 22b provided with a motor 23 described later is formed flat.
The moving unit 22 includes a motor 23, a worm 24, and a worm gear 25.
[0033]
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9
The motor 23 is fixed to the rear end 22 b of the moving unit 22. A worm 24 is attached to the
output shaft of the motor 23. The worm gear 25 is rotatably supported by the moving portion 22
around the thickness direction Z. The worm gear 25 meshes with both the worm 24 and the fixed
rack 21.
[0034]
For example, when the motor 23 is driven to rotate forward, the worm gear 25 travels on the
fixed rack 21 and the piston unit 20 travels from the inside of the main unit 2 to the outside of
the main unit 2 through the opening 26. Move. When the motor 23 is reversely driven, for
example, the worm gear 25 travels on the fixed rack 21 and the piston unit 20 travels from the
outside of the main unit 2 to the inside of the main unit 2 through the opening 22. Moving. That
is, the moving unit 22 is movable in and out of the main body 2 like a piston through the opening
26 provided in the front surface 2 a.
[0035]
The CPU 5 as a bending state instruction means and detection means is a microcomputer
incorporating a CPU (central processing unit) and a memory such as a RAM and a ROM, and an
audio processing unit described later with respect to the speaker unit drive unit 4 Based on 6 and
the operation unit 7 and the boarding information (in which position of the seat the user or the
like is riding), it is determined which piston unit 20 is to be operated among the plurality of
piston units 20 of the speaker unit drive unit 4 The speaker unit driver 4 is instructed. Further, a
sound field corresponding to the boarding information is determined and instructed to the audio
processing unit 6.
[0036]
The audio processing unit 6 as a sound field setting unit is a decoding circuit that decodes
encoded data with respect to an audio signal input from an external audio input, a DA conversion
circuit that converts a digital signal into an analog signal, After performing processing according
to the input signal, it includes a delay for making a sound field instructed by the CPU 5, an
equalizing circuit that adjusts the sound quality, and an amplifier circuit that amplifies the signal
subjected to these processings. Output to the speaker unit 3.
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[0037]
The operation unit 7 includes, for example, a plurality of buttons, a display unit, and the like, and
the user sets the center speaker device 1 and the like.
The operation unit 7 may be configured as a remote controller (remote control).
[0038]
The center speaker device 1 having the above-described configuration detects which seat of the
attached vehicle the passenger is on, and changes the bending state of the speaker unit 3 by the
speaker unit driver 4 according to the riding state. . FIG. 6 shows a flowchart of an operation of
changing the bending state of the speaker unit 3 according to the riding state of the occupant.
The flowchart shown in FIG. 6 is executed by the CPU 5.
[0039]
As shown in FIG. 7, in the seat list of the vehicle 100 in this embodiment, the front seat right side
is the driver seat A, the front seat left side is the passenger seat B, the rear seat is the right side C,
and the left side is D, and the center speaker device It is assumed that 1 is provided in front of
and between the driver's seat A and the passenger's seat B. Further, as shown in FIG. 8 and the
subsequent drawings, the plurality of connecting portions 10 are distinguished by attaching
symbols as connecting portions 101, 102, 103, 104, 105 and 106 from the left side in the
drawing.
[0040]
It demonstrates along the flowchart of FIG. First, in step S101, a boarding position detection
process is performed, and the process proceeds to step S102. In this step, it is detected which
seat an occupant is in and the boarding state (boarding information) is stored. For example, a
method of obtaining a signal indicating the mounting state of a seat belt from a vehicle, a method
of obtaining a state of the seat sensor by attaching a seat sensor to each seat, or a car A camera
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11
is provided in the room, and a state of each seat is acquired and determined from a known
method such as a method of obtaining an image obtained by photographing each seat and
detecting whether or not the user is riding from the image.
[0041]
Next, in step S102, it is determined whether or not the detection result in step S101 is only for
the driver's seat A. If it is only for the driver's seat A (in the case of YES), the process proceeds to
step S103; (In the case of NO) proceeds to step S104.
[0042]
Next, in step S103, the speaker unit 3 is moved in the direction of the driver's seat A, and the
sound field is set in accordance with the driver's seat A.
In this step, the speaker unit 3 is bent into a form as shown in FIG. FIG. 8 is a view of the center
speaker device 1 as viewed from above (however, the rail portion 13 is omitted). As shown in FIG.
8, the moving part 22 of the piston part 20 corresponding to the connecting part 101 moves so
as to protrude from the inside of the main body part 2, and the connecting part 101 is pushed
out by the tip 22 a of the moving part 22. Then, the connecting portion 101 pivots against each
other against the internal biasing force, and the movable portions 11 provided at both ends of
the speaker unit 3 move along the rail portion 13 so as to approach the connecting portion 101,
and the speaker The unit 3 bends from the main body 2 into a substantially convex shape with
the connecting portion 101 as a bending point. That is, the bending state instruction means
instructs the bending state of the plurality of speakers based on the detection result of the
detecting means, and the changing means changes the bending state between the plurality of
speakers in the connecting means.
[0043]
In the configuration shown in FIG. 8, six of the seven speaker devices 9 provided in the speaker
unit 3 of the present embodiment are directed to the driver's seat A, and directivity can be
directed to the driver's seat A . Then, for example, the sound field is optimized at the driver's seat
A using a function called so-called time alignment in which a delay is inserted by each speaker so
that the transmission time of sound from each on-vehicle speaker or the center speaker device 1
substantially matches. A delay or the like is set such that a sound can be heard from the front
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center of the user on the driver's seat A).
[0044]
Next, in step S104, it is determined whether or not the detection result in step S1 is a passenger
seat B only ride. If the passenger seat B only is a ride (in the case of YES), the process proceeds to
step S105; (In the case of NO) proceeds to step S106.
[0045]
Next, in step S105, the speaker unit 3 is moved in the direction of the front passenger seat B, and
the sound field is set in accordance with the front passenger seat B.
In this step, the speaker unit 3 is bent into a form as shown in FIG. FIG. 9 is a view of the center
speaker device 1 as viewed from above as in FIG. As shown in FIG. 9, the moving part 22 of the
piston part 20 corresponding to the connecting part 106 moves so as to protrude from the inside
of the main body part 2, and the connecting part 106 is pushed out by the tip 22 a of the moving
part 22. Then, the connecting portion 106 pivots against each other against the internal biasing
force, and the movable portions 11 provided at both ends of the speaker unit 3 move along the
rail portion 13 so as to approach the connecting portion 106, and the speaker The unit 3 bends
from the main body 2 into a substantially convex shape with the connecting portion 106 as a
bending point.
[0046]
In the embodiment shown in FIG. 9, six of the seven speaker devices 9 provided in the speaker
unit 3 of the present embodiment are directed to the passenger seat B, and directivity can be
directed to the passenger seat B. . Then, as in the case of FIG. 8, the time alignment function
delays the sound field to an optimal viewing state at the passenger seat B (for example, a state in
which a sound can be heard from the front center of the user on the passenger seat B). Set etc.
[0047]
Next, in step S106, it is determined whether or not the detection result in step S1 is on both
driver's seat A and passenger's seat B, and if both driver's seat A and passenger's seat B are on
(YES Step) to step S107, and if not (if NO), the process proceeds to step S108.
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[0048]
Next, in step S107, the speaker unit 3 is moved in the direction of the driver's seat A and the
assistant driver's seat B, and the sound field is set according to the assistant's seat B.
In this step, the speaker unit 3 is bent into a form as shown in FIG. FIG. 10 is a view of the center
speaker device 1 as viewed from above as in FIGS. 8 and 9. As shown in FIG. 10, the moving part
22 of the piston part 20 corresponding to the connecting parts 103 and 104 moves so as to
protrude from the inside of the main body part 2 and the connecting parts 103 and 104 are
moved by the tip 22a of the moving part 22. Push out. Then, the connecting portions 103 and
104 rotate relative to each other against the internal biasing force, and the movable portions 11
provided at both ends of the speaker unit 3 move along the rail portion 13 so as to approach the
connecting portions 103 and 104. Then, the speaker unit 3 is bent in a convex, substantially
mountain shape from the main body 2 with the connecting portions 103 and 104 as bending
points.
[0049]
In the embodiment shown in FIG. 10, of the seven speaker devices 9 provided in the speaker unit
3 of the present embodiment, three located on the right side face the driver's seat A side, and
three located on the left side are the passenger seat B side. Since the equal number of speaker
devices 9 are directed to the driver's seat A and the passenger's seat B, directivity can be directed
to both. Then, in the same manner as in FIGS. 8 and 9, the time alignment function allows the
sound field to be viewed optimally in the driver's seat A and the assistant driver's seat B (for
example, the sound from the front center of the user in the driver's Set the delay etc. so that it
can be heard.
[0050]
Next, in step S108, it is determined whether the detection result in step S1 is on both the driver's
seat A and the passenger's seat B and on at least one of the rear seats C and D. If the user is in
the seat of (YES), the process proceeds to step S109. If not (NO), the process is terminated.
[0051]
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Next, in step S109, the speaker unit 3 is moved in the directions of the driver's seat A, the
assistant driver's seat B and the rear seats C, D to set the sound field in accordance with all the
seats.
In this step, the speaker unit 3 is bent into a form as shown in FIG. FIG. 11 is a view of the center
speaker device 1 as viewed from above as in FIGS. 8, 9 and 10. As shown in FIG. 11, the moving
part 22 of the piston part 20 corresponding to the connecting parts 102 and 105 moves so as to
project from the inside of the main body part 2 and the connecting parts 102 and 105 are moved
by the tip 22a of the moving part 22. Push out. Then, the connecting portions 102 and 105
rotate relative to each other against the internal biasing force, and the movable portions 11
provided at both ends of the speaker unit 3 move along the rail portion 13 so as to approach the
connecting portions 102 and 105. Then, the speaker unit 3 is bent in a convex, substantially
mountain shape from the main body 2 with the connecting portions 102 and 105 as bending
points.
[0052]
In the embodiment shown in FIG. 11, of the seven speaker devices 9 provided in the speaker unit
3 of the present embodiment, two positioned on the right side face the driver's seat A and two
positioned on the left side are the passenger seat B The three cars located in the center will go to
the rear seat side, and directionality can be directed to all the seats. Then, as in the case of FIGS.
8, 9, and 10, the time alignment function provides an optimum viewing state in all the seats (for
example, a state in which a sound can be heard from the front center of the user riding in each
seat). Set the delay etc.
[0053]
In the operation described above, which moving unit 22 is operated with respect to the boarding
information, that is, the form of the speaker unit 3 may be set in advance as a table in, for
example, a memory in the CPU 5 or the like.
[0054]
In the present embodiment, each connecting portion 10 is rotated by being pushed by the
moving portion 22, but when the moving portion 22 is accommodated in the main body portion
2, the connecting portion 10 which has been pushed is twisted The biasing force of the coil
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spring 10c causes the panel portion 8 to rotate so as to be linear, and returns to the state shown
in FIG.
[0055]
According to this embodiment, the speaker unit 3 in which the panel unit 8 having the speaker
device 9 attached thereto is rotatably coupled by the connecting unit 10 to the front surface 2a
of the main body unit 2 of the center speaker device 1 is provided Based on the obtained
boarding position, the CPU 5 instructs the speaker unit driver 4 provided inside the main body 2
to bend the speaker unit 3 in a predetermined form, and the speaker unit driver 4 receives the
command from the CPU 5. In accordance with the instruction, the motor 23 of the piston unit 20
provided corresponding to each connecting unit 10 is driven to project the moving unit 22 from
the main unit 2 and turn the connecting unit 10 to bend the speaker unit 3 Because of this, the
directivity of the speaker unit 3 can be given toward the riding position of the user or the like.
[0056]
Further, since the sound field is set in accordance with the bending state of the speaker unit 3, it
is possible to set the optimum viewing state for the user.
[0057]
In the embodiment described above, no sound may be emitted from the speaker device 9 which
is directed in a direction other than the direction in which the directivity is to be turned.
For example, in the case of the form of FIG. 8, the speaker device 9 which is not directed to the
driver's seat A may not make a sound.
Similarly, in the case of FIG. 9, no sound may be emitted from the speaker device 9 which does
not face the passenger seat B, and in the case of FIG. 10, it faces the driver seat A and the
passenger seat B. No sound may be output from the speaker device 9 which is not present.
[0058]
Further, when directivity is directed in a plurality of directions such as in FIG. 10, different
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sounds (information) may be output.
For example, in the case of FIG. 10, the speaker device 9 facing the driver's seat A emits a
guidance voice of the car navigation system, and the speaker device 9 facing the passenger seat
B emits a voice from a CD or the like. It is also good.
[0059]
Next, a center speaker device 1 according to a second embodiment of the present invention will
be described with reference to FIG.
The same parts as those of the first embodiment described above are designated by the same
reference numerals and the description thereof will be omitted.
[0060]
In the present embodiment, the configuration of the center speaker device 1 shown in FIGS. 1 to
5 is the same as that of the first embodiment. In this embodiment, the operation of changing the
bending state of the speaker unit 3 shown in FIG. 6 is different, and the user arbitrarily changes
the bending state using the operation unit 7 and the center speaker device 1 according to the
bending state. Sets the sound field. FIG. 12 shows a flowchart of the operation of changing the
bending state of the speaker unit 3 in the present embodiment. The flowchart shown in FIG. 7 is
executed by the CPU 5.
[0061]
The flowchart shown in FIG. 12 will be described. First, in step S201, it is determined whether
the speaker unit drive unit 4 is operating or not. If it is operating, the process proceeds to step
S202 (in the case of YES). If not (in the case of NO), the process proceeds to step S211. move on.
For example, a sensor or the like for detecting the position of each moving unit 22 is provided to
determine whether the speaker unit driving unit 4 is operating, and whether or not the speaker
unit driving unit 4 is moved according to the position. It may be determined whether or not is
operating.
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[0062]
Next, in step S202, bending state determination processing is performed, and the process
proceeds to step S203. In the bending state determination processing, as a result of step S201, it
is determined which of the coupling portions 101 to 106 is rotating, that is, which piston portion
20 is operating. The determination result is stored inside the CPU 5.
[0063]
Next, in step S203, as a result of the determination in step S202, it is determined whether or not
any one of connecting portions 101, 102, and 103 is moving (is rotating), and is moving (YES If
not, the process proceeds to step S205.
[0064]
Next, in step S204, the sound field is adjusted to the driver's seat A when the connecting portion
101 is moving, and the passenger's seat B is also considered while adjusting the driver's seat A
when the connecting portion 102 or 103 is moving. Set to sound field.
In the case of this step, when the connecting portion 101 is moving, since it is in the state as
shown in FIG. 8, the sound field matched to the driver's seat A is set as in the first embodiment.
Further, when the connecting portion 102 or 103 is moving, although there is a configuration
similar to FIG. 8, there are a plurality of speaker devices 9 facing the passenger seat B side, for
example, the center speaker device 1 in the passenger seat B Set the delay by the time alignment
function in consideration of the sound from.
[0065]
Next, in step S205, as a result of the determination in step S202, it is determined whether or not
any one of connecting portions 104, 105, 106 is moving (is rotating), and is moving (YES If not)
(if NO), the process proceeds to step S207.
[0066]
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Next, in step S206, when the connecting portion 106 is moving, the sound field is aligned with
the passenger seat B, and when the connecting portion 104 or 105 is moving, the driver's seat A
is also considered while aligning with the passenger seat B Set to sound field.
In the case of this step, when the connecting portion 106 is moving, since it is in the state as
shown in FIG. 9, the sound field matched to the front passenger seat B is set as in the first
embodiment. Further, when the connecting portion 104 or 105 is moving, although there is a
configuration similar to FIG. 9, there are a plurality of speaker devices 9 facing the driver's seat A
side, so for example, the center speaker device 1 in the driver's seat A Set the delay by the time
alignment function in consideration of the sound from.
[0067]
Next, in step S207, as a result of the determination in step S202, it is determined whether or not
both connecting portions 103 and 104 are moving (is rotating), and if moving (in the case of
YES), step S208. If not (if NO), the process proceeds to step S209.
[0068]
Next, in step S208, the sound field is set to match both the driver's seat A and the passenger seat
B.
In the case of this step, since the state is as shown in FIG. 10, a sound field matched to the
driver's seat A and the passenger's seat B is set as in the first embodiment.
[0069]
Next, in step S209, as a result of the determination in step S202, it is determined whether or not
both of the connecting portions 102 and 105 are moving (is rotating), and if moving (in the case
of YES), step S210. And if not (if NO) exit.
[0070]
Next, in step S210, the sound field is set for all the seats.
04-05-2019
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In the case of this step, since the state is as shown in FIG. 11, a sound field set to all the seats is
set as in the first embodiment.
[0071]
On the other hand, in step S211, since the speaker unit drive unit 4 is not in operation, the
process ends without performing the automatic sound field setting.
[0072]
According to the present embodiment, even when the user arbitrarily changes the bending state
of the speaker unit 3 using the operation unit 7, the sound field can be set according to the
bending state, so the intention of the user It can be made an optimal sound field according to
[0073]
Next, a center speaker device 1 according to a third embodiment of the present invention will be
described with reference to FIG. 13 to FIG.
The same parts as those in the first and second embodiments described above are designated by
the same reference numerals and the description thereof will be omitted.
[0074]
The present embodiment differs from the first and second embodiments in that the source
content input to the center speaker device 1 is determined, and the speaker unit 3 is bent based
on the determination result.
[0075]
In the present embodiment, the audio processing unit 6 as the source discrimination means
discriminates the source information (reproduction source information) inputted to the speaker
unit 3 and outputs it to the CPU 5.
04-05-2019
20
The source information is output to the CPU 5 based on, for example, switching information of a
device connected to the center speaker device 1 such as a television or a DVD or a CD, or source
content such as a music program or a news program.
The switching information of the device may be acquired from operation information of the
operation unit 7 or the like, or an external switching signal may be acquired. The source content
may be acquired from, for example, a program guide for terrestrial digital broadcasting, or a
database on an external network such as the Internet in the case of a CD or a DVD.
[0076]
The bending operation of the speaker unit 3 in the present embodiment will be described with
reference to the flowcharts of FIG. 13 and FIG. The flowcharts of FIG. 13 and FIG. 14 are
executed by the CPU 5.
[0077]
First, in step S301, it is determined whether the reproduction source contains a video. If the
reproduction source contains a video (in the case of YES), the process proceeds to step S302. If
not (in the case of NO), the process proceeds to step S304. For example, it may be determined
that the switched source is a television or a DVD if it includes a video.
[0078]
Next, in step S302, it is determined whether the reproduction source is a music program or
music software, and if the reproduction source is a music program or music software (in the case
of YES), the process proceeds to step S304, otherwise (in the case of NO) ) Goes to step S303. As
described above, the determination in this step is made by acquiring information from, for
example, a program guide for terrestrial digital broadcasting or a database on an external
network.
[0079]
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21
Next, in step S303, the CENTER-focused speaker position is set and the process ends. The
CENTER-focused speaker position indicates a state in which the sound is emitted without being
biased to the right or left of the center speaker device 1 of the center speaker device 1 in the
bent state of the speaker unit 3, for example, as shown in FIG. Make it look like this. Of course, in
the case of the configuration of FIG. 11, the sound field may be set to a sound field suitable for all
the seats as in the first embodiment. That is, the bending states of the plurality of speakers are
changed based on the determination result of the source determination means.
[0080]
In step S304, sound pressure linked speaker driving processing is performed. The operation of
the sound pressure linked speaker driving process will be described with reference to the
flowchart of FIG.
[0081]
First, in step S401, the bass component of the reproduced sound is extracted, and the process
proceeds to step S402. The bass component of the reproduction sound is extracted by the audio
processing unit 6, and the sound pressure level is acquired.
[0082]
Next, in step S402, a range in which the speaker unit 3 is pushed out to the front is set and
driven according to the sound pressure level of the extracted bass component. In this step, as
shown in FIG. 15, the speaker unit drive unit 4 is instructed to push out largely when the sound
pressure level of the bass component is large and push out small when the sound pressure level
of the bass component is small. That is, the amount by which the speaker unit 3 is pushed out of
the main body 2 (the amount by which the moving portion 22 protrudes from the main body 2)
increases or decreases in accordance with the increase or decrease of the bass component of
music.
[0083]
04-05-2019
22
According to the present embodiment, when the reproduction source input to the center speaker
device 1 is music, the amount by which the speaker unit 3 is pushed out from the main body 2 is
increased or decreased according to the sound pressure level of the bass component. In this case,
since the CENTER is emphasized, in the case of music, the speaker unit 3 can be operated to
enjoy the appearance according to the music. In addition, in the case of music other than music,
it can be set to the sound field which was in the source other than music.
[0084]
The third embodiment may be combined with the first and second embodiments. That is, after
the bending state is indicated according to the riding position and the setting by the user, the fine
adjustment may be further performed by the source information. In this case, for example, step
S303 may not be the CENTER-focused speaker position, but may be a position matched to the
riding position or the setting by the user. Further, in the sound pressure linked speaker drive
processing, the range for pushing out the speaker unit 3 is changed by the piston unit 20
(moving unit 22) (pushed or bent) pushing out the speaker unit 3 according to the riding position
and the setting by the user. ) May be used.
[0085]
In the third embodiment, the sound pressure linked speaker driving process is performed in the
case of music, but may be performed in another source. In that case, the frequency for extracting
the sound pressure may be set for each source, or the overall sound pressure may be viewed.
[0086]
Further, although the above-described center speaker device 1 has the reproduction source input
from the outside, it may be configured as a reproduction device provided with a non-volatile
memory, storing music data and the like in the non-volatile memory and reproducing it.
Alternatively, the center speaker device 1 may be provided as part of a car navigation system or
part of a home electric appliance. That is, the electronic device may be provided.
04-05-2019
23
[0087]
According to the embodiment described above, the following center speaker device 1 can be
obtained.
[0088]
(Supplementary Note) The center speaker device 1 including the plurality of speaker devices 9,
the connection portion 10 connecting the plurality of speaker devices 9 so as to be bendable
with each other, and the bending state between the plurality of speakers 9 in the connection
portion 10 is changed A center speaker device 1 comprising: a speaker unit drive unit 4; and a
CPU 5 for instructing the speaker unit drive unit 4 to bend the plurality of speaker devices 9 in
the connection unit 10.
[0089]
According to this center speaker device 1, directivity can be given in any direction by changing
the bending state of the plurality of speaker devices 9 connected by the speaker unit drive unit 4
by instructing the CPU 5 to have the direction in which directivity is desired. It can be switched.
In addition, by bending in a substantially mountain shape, directivity can be given in a plurality
of directions.
[0090]
In addition, the Example mentioned above only showed the typical form of this invention, and
this invention is not limited to an Example.
That is, various modifications can be made without departing from the scope of the present
invention.
[0091]
DESCRIPTION OF SYMBOLS 1 center speaker apparatus (sound apparatus) 2 main-body part 2a
front surface (one surface) 3 speaker unit 4 speaker unit drive part (change means) 5 CPU
(bending state instruction means, detection means) 6 audio process part (sound field setting
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means , Source discrimination means) 9 Speaker device (speaker) 10 Coupling portion (coupling
means) 11 Movable portion (moving means) 20 Piston portion (pushing means)
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