JPH08251700

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DESCRIPTION JPH08251700
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
audio control apparatus for controlling a multi-channel on-vehicle audio device mounted on a
vehicle, and in particular to remotely control the volume on the rear side of the vehicle
separately from the front side. An audio control device for enabling.
[0002]
2. Description of the Related Art In the above-mentioned on-vehicle audio apparatus, multichanneling has progressed in recent years, and four-speaker sounds are common. Then, in the
audio control device for controlling the on-vehicle audio device, usually, the volume balance
(including the fader) and the sound quality are set centering on the driver.
[0003]
By the way, when the passenger compartment is as wide as a wagon, the front seat and the rear
seat can be considered as separate spaces even though they are continuous. That is, there is a
problem that if the driver is set according to the driver, the volume of the rear seat will be very
large. In addition, there is a problem that it is difficult to set the volume balance etc. in
consideration of the driver's seat and the rear seat. In order to cope with such problems,
conventionally, two sets of in-vehicle audio devices have been installed before and after, but
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there is another problem that it is difficult to hear because the cost and space are continuous.
The
[0004]
Therefore, in view of the above problems, the present invention aims to provide an audio control
device that facilitates control of the volume balance between the front seat and the rear seat even
in the case of a large compartment such as a wagon. I assume.
[0005]
SUMMARY OF THE INVENTION In order to solve the above problems, the present invention
provides an audio control device having the following configuration.
That is, an audio control device for controlling the volume, volume balance and sound quality of
audio mounted on a vehicle, a plurality of electronic volumes for increasing and decreasing the
volume of the front and rear seats of the vehicle, and the plurality of electronic volumes A control
unit for controlling and a front panel for giving an instruction to control the volume of each of
the plurality of electronic volumes to the control unit from the front seat are provided. The
remote control unit instructs the control unit from the rear seat to control the volume of the
plurality of electronic volumes for the rear seat by the same amount.
[0006]
The control unit further includes a plurality of sound quality variable units that change the sound
quality of the front and rear seats of the vehicle, the control unit controls the plurality of sound
quality variable units, and the front panel controls the control unit. An instruction to control the
sound quality by the same plurality of sound quality variable units is given from the front seat,
and the remote control unit is the same as the sound quality with the plurality of sound quality
variable units for the rear seat with respect to the control unit. Instructions to be controlled may
be given from the rear seat.
[0007]
Further, the control unit causes the remote control unit to increase the volume on one side of the
left and right sides of the plurality of electronic volumes for the rear seat, and a control
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instruction to decrease the volume on the other side by the same amount is given from the rear
seat. You may do so.
In addition, after the power of the audio is turned on and the remote control unit is operated, the
control unit controls the volume of the plurality of electronic volumes of the front seat among the
plurality of electronic volumes by the same amount by the front panel. Instructions to be given
may be given from the front seat.
[0008]
Further, the control unit decreases the volume of the plurality of electronic volumes for the front
seat when the remote control unit gives a control instruction that the volume of the plurality of
electronic volumes for the rear seat is lower than the minimum value. Control may be performed.
The control unit may be configured to give an instruction from the front seat to control the
volume of each of the plurality of electronic volumes in the front seat among the plurality of
electronic volumes by the front panel.
[0009]
According to the audio control device of the present invention, the remote control unit instructs
the control unit to control the volume of the plurality of electronic volumes for the rear seat by
the same amount from the rear seat. Even in the case of a large cabin, the volume control in the
rear seat has become easy. Furthermore, an instruction to control the sound quality by the same
amount by the plurality of sound quality variable units for the rear seat is given from the rear
seat, and the volume of one side of both left and right sides of the plurality of electronic volumes
for the rear seat is increased By giving a control instruction from the rear seat to reduce the
volume of the same amount from the rear seat, the sound quality and volume balance can be
individually operated in addition to the volume, and the operability is improved. After the power
of the audio is turned on and after the operation of the remote control unit, the front panel
controls the volume of the plurality of electronic volumes of the front seat among the plurality of
electronic volumes by the same amount, thereby the rear seat side It is possible to transfer the
control right of to improve operability. When the remote control unit gives a control instruction
that the volume of the plurality of electronic volumes for the rear seat is lower than the minimum
value, the volume of the plurality of electronic volumes for the front seat is controlled to
decrease. The volume on the front seat side can be further reduced. Although the front panel
gives an instruction to control the volume of each of the plurality of electronic volumes in the
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front seat among the plurality of electronic volumes by the same amount, the source is the same,
but as if the audio control device It becomes equivalent to having two units.
[0010]
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a view showing an audio control device according to a first embodiment of the present
invention. As shown in the figure, the electronic volume (VRFL) 1 for increasing the volume of
the front seat left side (FL) by inputting the sound source Lch of the stereo signal and the sound
source Lch of the stereo signal similarly Electronic volume (VRRL) 3 to increase or decrease the
volume of RL), and electronic volume (VRFR) 2 to increase or decrease the volume of the front
right (FR) by inputting sound source Rch of stereo signal, and sound source Rch of stereo signal
similarly And an electronic volume (VRRR) 4 for increasing or decreasing the volume of the rear
right side (RR), power amplifiers 5, 6, 7, 8 connected to the respective electronic volumes 1, 2, 3,
4; Control the volume increase / decrease of the electronic volume 1, 2, 3, 4 and the speakers 9
(FLSP), 10 (FRSP), 11 (RLSP), 12 (RLSP) driven by the power amplifiers 1, 2, 3, 4 To convert the
light signal into an electrical signal, the control unit 13 comprising a microcomputer, the front
panel unit 14 for giving control instructions to the control unit 13 from the driver's seat, and the
control instruction to give the control instructions from the rear seat to the control 13 A light
receiving unit 15 and a remote control unit 16 for transmitting an optical signal to the light
receiving unit 15 are provided.
[0011]
Here, when the volume is operated by the panel button of the front pulse unit 14, the control unit
13 controls the electronic volumes 1, 2, 3, 4 so as to increase and decrease the volume by the
same amount. In this case, when a normal fader switch operation is performed, it is assumed that
a fader operation in which the gain can be continuously changed and the signal can be
interrupted is performed. FIG. 2 is a schematic view of the arrangement of the speakers 9 to 12
in FIG. As shown in the figure, the speaker 9 (FLSP) is on the left side of the front seat of the
vehicle, the speaker 10 (FRSP) is on the right side of the front seat, and the speaker 11 (RLSP) is
on the left side of the rear seat. ) Will be placed on the right side of the rear seat.
[0012]
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FIG. 3 is a schematic view of the button arrangement of the remote control unit 16 of FIG. As
shown in the figure, the remote control unit 16 is the same for the rear seat speaker 11 (RLSP)
and the two channels of the electronic volume (VRRL) 3 and the electronic volume (VRRR) 4 for
the speaker 12 (RRSP). Volume balance between the two channels of the volume button for
controlling the volume increase and decrease, the electronic volume (VRRL) 3 for the rear seat
speaker 11 (RLSP) and the speaker 12 (RRSP) 3 and the electronic volume (VRRR) 4 A volume
balance button for controlling the sound quality of two channels of the rear seat speaker 11
(RLSP) and the electronic volume (VRRL) 3 and the electronic volume (VRRR) 4 for the speaker
12 (RRSP) And a sound quality button. When the control button is pressed, a control instruction
is transmitted as an optical signal to the light receiving unit 15, but a remote code specifying the
remote control unit 16 is also transmitted together with the control instruction.
[0013]
FIGS. 4 and 5 are flowcharts (part 1 and part 2) for explaining the first operation of the control
unit 13 of FIG. In step S1, a control instruction is input from the remote control unit 16 with the
volume button pressed through the light receiving unit 15. In step S2, based on the control
instruction of the remote control unit 16, it is determined whether the remote control codes
match. If this determination is "YES", the process proceeds to step S3, and if "NO", the process
proceeds to step S9 of FIG.
[0014]
In step S3, it is determined whether the volume of the control instruction from the remote
control unit 16 should be increased. If this determination is "YES", the process proceeds to step
S7, and if "NO", the process proceeds to step S4. In step S4, it is determined whether the volume
of the control instruction from the remote control unit 16 should be decreased. If this
determination is "YES", the process proceeds to step S5, and if "NO", the process proceeds to step
S9 of FIG.
[0015]
In step S5, it is determined whether the volume to be increased is the maximum value. If this
determination is "YES", control of the electronic volume (VRRL) 3 and the electronic volume
(VRRR) 4 is not performed, and the process proceeds to step S9 in FIG. The reason for limiting
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the volume increase in this way is to adjust the balance with the front seat, as described later. If
the said judgment is "NO", it will progress to step S6.
[0016]
In step S6, the electronic volume (VRRL) 3 and the electronic volume (VRRR) 4 are controlled to
increase the volume by one step. In step S7, it is determined whether the volume to be reduced is
the minimum value. If this determination is "YES", control of the electronic volume (VRRL) 3 and
the electronic volume (VRRR) 4 is not performed, and the process proceeds to step S9 in FIG. The
reason for limiting the reduced volume in this way is to adjust the balance with the front seat, as
described later. If the said judgment is "NO", it will progress to step S8.
[0017]
In step S8, the electronic volume (VRRL) 3 and the electronic volume (VRRR) 4 are controlled to
decrease the volume by one step. In step S9, a control instruction is input from the front panel
14 on which the volume button is pressed. In step S10, it is determined whether the volume of
the control instruction from the front panel 14 should be increased. If this determination is "YES",
the process proceeds to step S12, and if "NO", the process proceeds to step S11.
[0018]
In step S11, it is determined whether the volume of the control instruction from the front panel
14 should be reduced. If this determination is "YES", the process proceeds to step S14, and if
"NO", an end process is performed. In step S12, it is determined whether the volume to be
increased is the maximum value. If this determination is "YES", the electronic volume (VRFL) 1,
the electronic volume (VRFR) 2, the electronic volume (VRRL) 3 and the electronic volume
(VRRR) 4 are not controlled, and the termination process is performed. The reason for limiting
the increased volume in this way is to adjust the balance with the rear seat, as described later. If
the said judgment is "NO", it will progress to step S13.
[0019]
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In step S13, the electronic volume (VRFL) 1, the electronic volume (VRFR) 2, the electronic
volume (VRRL) 3 and the electronic volume (VRRR) 4 are controlled to increase the volume by
one step. In step S14, it is determined whether the volume to be reduced is the minimum value. If
this determination is "YES", the electronic volume (VRFL) 1, the electronic volume (VRFR) 2, the
electronic volume (VRRL) 3 and the electronic volume (VRRR) 4 are not controlled, and the
termination process is performed. The reason for limiting the reduced sound volume in this way
is to adjust the balance with the rear seat, as described later. If the said judgment is "NO", it will
progress to step S15.
[0020]
In step S15, the electronic volume (VRFL) 1, the electronic volume (VRFR) 2, the electronic
volume (VRRL) 3 and the electronic volume (VRRR) 4 are controlled to decrease the volume by
one step. As described above, even in the case of a large cabin, only the volume on the rear seat
side can be controlled by the volume operation button of the remote control unit 16, and the
volume operation can be easily performed without the need for complicated operation.
[0021]
FIG. 6 is a flow chart for explaining the second operation of the control unit 13 of FIG. In step
S21, it is determined whether or not the rear seat left side (RL) volume should be increased
according to the control instruction from the remote control unit 16 in which the volume balance
button is pressed. If this determination is "YES", the process proceeds to step S23, and if "NO",
the process proceeds to step S22.
[0022]
In step S22, it is determined whether the rear seat right side (RR) volume should be increased in
accordance with the control instruction from the remote control unit 16. If this determination is
"YES", the process proceeds to step S25, and if "NO", an end process is performed. In step S23, it
is determined whether the rear left (RL) volume to be increased is the maximum value. If the
determination is "YES", the electronic volume (VRRL) 3 and the electronic volume (VRRR) 4 are
not controlled and the termination process is performed. The reason for limiting the volume
increase in this way is to adjust the balance with the front seat, as described later. If the said
judgment is "NO", it will progress to step S24.
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[0023]
In step S24, the electronic volume (VRRL) 3 is controlled to increase the volume by one step, and
the electronic volume (VRRR) 4 is controlled to decrease the volume by one step. In step S25, it is
determined whether or not the rear seat right side (R) volume to be increased is the maximum
value. If the determination is "YES", the electronic volume (VRRL) 3 and the electronic volume
(VRRR) 4 are not controlled and the termination process is performed. The reason for limiting the
volume increase in this way is to adjust the balance with the front seat, as described later. If the
said judgment is "NO", it will progress to step S26.
[0024]
In step S26, the electronic volume (VRRR) 4 is increased in volume by one step, and the
electronic volume (VRRL) 3 is controlled to be reduced in volume by one step. FIG. 7 is a view
showing a portion of an audio control device according to a second embodiment of the present
invention. As shown in the figure, electronic volume (VRFL) 1, electronic volume (VRFR) 2,
electronic volume (VRRL) 3 and electronic volume (VRRR) 4 of FIG. A sound quality variable unit
(FL) 21, a sound quality variable unit (FR) 22, a sound quality variable unit (RL) 23, and a sound
quality variable unit (RR) 24 are provided.
[0025]
FIG. 8 is a flowchart for explaining the third operation of the control unit 13 of FIG. In step S31,
it is determined whether the control instruction from the remote control unit 16 with the sound
quality button pressed is the control of the sound quality variable unit (RL) 23 of the rear left
side (RL). If this determination is "YES", the process proceeds to step S32, and if "NO", the process
proceeds to step S33.
[0026]
In step S32, based on the control instruction, the sound quality variable unit (RL) 23 of the rear
left side (RL) is controlled, and the process is ended. In step S33, it is determined whether the
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control instruction from the remote control unit 16 is the control of the sound quality variable
unit (RR) 24 of the rear right side (RR). If this determination is "YES", the process proceeds to
step S34, and if "NO", the process ends.
[0027]
In step S34, based on the control instruction, the sound quality changing unit (RR) 24 of the rear
right side (RR) is controlled, and the process is ended. In this manner, not only the volume on the
rear seat side but also the volume balance and the sound quality can be controlled in the case of
a large cabin, and these operations can be performed easily without the need for complicated
operations.
[0028]
FIG. 9 is a flow chart for explaining the fourth operation of the control unit 13 of FIGS. 1 and 7.
In step S40, the control unit 13 detects that the power (POWER) ON, which is supplied to the
audio, is not illustrated. In step S41, a remote control flag is provided in the control unit 13, and
the remote control flag is turned off when the power is turned on.
[0029]
In step S42, it is determined whether the remote control unit 16 has been operated. If this
determination is "yes", the process proceeds to step S43, and if "no", the process proceeds to step
S44. In step S43, based on the control instruction of the remote control unit 16, the control unit
13 performs the operations of FIG. 4, FIG. 6, and FIG. そしてリモートフラグをOFFからONに
する。
[0030]
In step S44, it is determined whether the front panel 14 has been operated. If this determination
is "yes", the process proceeds to step S45, and if "no", the process waits. In step S45, it is
determined whether to increase the volume according to the control instruction from the front
panel 14 with the volume button pressed. If this determination is "YES", the process proceeds to
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step S47, and if "NO", the process proceeds to step S46.
[0031]
In step S46, it is determined whether the volume of the control instruction from front panel 14
should be reduced. If this determination is "YES", the process proceeds to step S51, and if "NO",
an end process is performed. In step S47, it is determined whether the volume to be increased is
the maximum value. If this determination is "YES", control of electronic volume (VRFL) 1 and
electronic volume (VRFR) 2 is not performed, and the process proceeds to step S49. The reason
for limiting the volume increase in this way is to adjust the balance with the rear seat. If "NO", the
process proceeds to step S48.
[0032]
In step S48, the electronic volume (VRFL) 1 and the electronic volume (VRFR) 2 are controlled to
increase the volume by one step. In step S49, it is determined whether the remote control flag is
OFF. If this determination is "NO", end processing is performed, and if "YES", the process
proceeds to step S50. In step S50, the electronic volume (VRRL) 3 and the electronic volume
(VRRR) 4 are controlled to increase the volume by one step, and an end process is performed.
[0033]
In step S51, it is determined whether the volume to be reduced is the minimum value. If this
determination is "YES", control of electronic volume (VRFL) 1 and electronic volume (VRFR) 2 is
not performed, and the process proceeds to step S53. The reason for limiting the reduced volume
in this way is to adjust the balance with the rear seat. If "NO", the process proceeds to step S48.
[0034]
In step S52, the electronic volume (VRFL) 1 and the electronic volume (VRFR) 2 are controlled to
decrease the volume by one step. In step S53, it is determined whether the remote control flag is
OFF. If this determination is "NO", end processing is performed, and if "YES", the process
proceeds to step S54. In step S54, the electronic volume (VRRL) 3 and the electronic volume
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(VRRR) 4 are controlled to decrease the volume by one step and the end process is performed.
[0035]
In this way, after the power is turned on, the operation of the volume, volume balance, and sound
quality of the front panel 14 functions for the entire front and rear seats, but once the remote
control unit 14 is operated, the front Each operation of the panel 14 is an operation of only the
front seat side. This is held until the power is turned off. Therefore, priority is given to normal
driver-centered operation, but when the passenger in the rear seat feels "noisy" etc., the control
right on the rear seat side is transferred to the remote control unit 16 to It becomes possible to
improve operability.
[0036]
FIG. 10 is a flow chart for explaining the fifth operation of the control 13 of FIGS. 1 and 7. In step
S61, a control instruction is input from the remote control unit 16 with the volume button
pressed through the light receiving unit 15. In step S62, it is determined whether the volume of
the control instruction from the remote control unit 16 should be increased. If this determination
is "YES", the process proceeds to step S64, and if "NO", the process proceeds to step S63.
[0037]
In step S63, it is determined whether the volume of the control instruction from the remote
control unit 16 should be decreased. If this determination is "YES", the process proceeds to step
S66, and if "NO", an end process is performed. In step S64, it is determined whether the volume
to be increased is the maximum value. If the determination is "YES", the electronic volume (VRRL)
3 and the electronic volume (VRRR) 4 are not controlled and the termination process is
performed. The reason for limiting the increased volume in this way is to adjust the balance with
the front seat. If the said judgment is "NO", it will progress to step S65.
[0038]
In step S65, the electronic volume (VRRL) 3 and the electronic volume (VRRR) 4 are controlled to
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increase the volume by one step, and the end process is performed. In step S66, it is determined
whether the volume to be reduced is the minimum value. If this determination is "YES", control of
the electronic volume (VRRL) 3 and the electronic volume (VRRR) 4 is not performed, and the
process proceeds to step S67. The reason for limiting the reduced volume in this way is to adjust
the balance with the front seat. If the above determination is "NO", the process proceeds to step
S68.
[0039]
In step S67, the electronic volume (VRFL) 1 and the electronic volume (VRFR) 2 are controlled to
decrease the volume by one step, and an end process is performed. In step S68, the electronic
volume (VRRL) 3 and the electronic volume (VRRR) 4 are controlled to decrease the volume by
one step, and an end process is performed.
[0040]
In this way, even if the volume on the rear seat side is lowered, if the volume on the front seat is
lowered by operating to lower the volume on the front seat, only the volume on the front seat
side will be displayed. If you feel that it is continuous operation, it will be possible to reduce the
volume of the front seat is also reduced. FIG. 11 is a flow chart for explaining the sixth operation
of the control 13 of FIGS. 1 and 7.
[0041]
In step S71, it is determined whether or not there is an input of a control instruction from the
remote control unit 16. If this determination is "yes", the process proceeds to step S72, and if
"no", the process proceeds to step S73. In step S72, the electronic volume (VRRL) 3 and the
electronic volume (VRRR) 4 are controlled.
[0042]
In step S73, the electronic volume (VRFL) 1 and the electronic volume (VRFR) 2 are controlled.
As described above, the operation of the remote control unit 16 is fixed only to the rear seat side,
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and the operation of the front panel 14 is fixed only to the front seat side, whereby the operation
of the front and rear seats is performed with the remote control unit 16 and the front panel 14
Since the operation is performed separately and independently, the sound source is the same, but
it is equivalent to having two audio control devices.
[0043]
In addition, it is possible to provide a remote control unit instead of the front panel. Although the
number of speakers is four in the above description, the present invention is not limited to this.
[0044]
As described above, according to the present invention, the remote control unit controls the
volume of a plurality of electronic volumes for the rear seat from the rear seat by the same
amount. The volume control at the seat has become easy. From the rear seat to the rear seat
multiple sound quality variable part controls the sound quality by the same amount and multiple
electronic volumes for the rear seat control the left and right volume, so the sound quality and
volume balance can be operated separately besides volume Improves the quality. After the power
of the audio is turned on and after the remote control is operated, the front panel controls the
volume of the electronic volumes of the front seat among the electronic volumes by the same
amount, so the control right on the rear seat transfers. It becomes possible to improve
operability. If the remote control gives a control instruction that the volume of the rear seat
electronic volume is lower than the minimum value, the volume of the front seat electronic
volume is reduced, so the front seat volume is also reduced. Can be further reduced. Since the
front panel controls the volume of each of the electronic volumes in the front seat among the
electronic volumes by the same amount, the source is the same, but it becomes equivalent to
having two audio control devices. .
[0045]
Brief description of the drawings
[0046]
1 is a diagram showing an audio control device according to a first embodiment of the present
invention.
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[0047]
2 is a diagram schematically showing the arrangement of the speakers 9 to 12 of FIG.
[0048]
3 is a diagram schematically showing the button arrangement of the remote control unit 16 of
FIG.
[0049]
4 is a flowchart (part 1) illustrating a first operation of the control unit 13 of FIG.
[0050]
5 is a flowchart (part 2) for explaining the first operation of the control unit 13 of FIG.
[0051]
6 is a flowchart illustrating a second operation of the control unit 13 of FIG.
[0052]
7 is a diagram showing a portion of an audio control device according to a second embodiment
of the present invention.
[0053]
<Figure 8> It is the flowchart which explains the 3rd operation of control section 13 in Figure 7.
[0054]
9 is a flow chart for explaining a fourth operation of the control unit 13 of FIG. 1 and FIG. 7;
[0055]
10 is a flowchart illustrating a fifth operation of the control 13 of FIG. 1, FIG.
[0056]
11 is a flow chart for explaining a sixth operation of the control 13 of FIG. 1 and FIG. 7;
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[0057]
Explanation of sign
[0058]
1, 2, 3, 4 ... electronic volume 13 ... control unit 14 ... front panel 16 ... remote control unit 21, 22,
23, 24 ... sound quality variable unit
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