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JP2006115368

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DESCRIPTION JP2006115368
An on-vehicle apparatus capable of transmitting a voice from a driver only to a passenger
wearing a headphone apparatus selected by the driver, and a control method and a control
program of the on-vehicle apparatus. An on-vehicle apparatus is connected to a plurality of
headphone apparatuses (100 to 102) and transmits audio sound to a passenger of a vehicle
equipped with the headphone apparatuses (100 to 102) through the headphone apparatuses
(100 to 102). The voice input means 23 for inputting the driver's voice and the driver's voice
inputted by the voice input means 23 are controlled to be outputted only to the headphone
devices 100 to 102 selected based on the external instruction. And control means 20. [Selected
figure] Figure 1
In-vehicle device, control method of in-vehicle device, and control program
[0001]
The present invention relates to a vehicle-mounted device to which a headphone device is
connected, and a control method and control program of the vehicle-mounted device.
[0002]
Generally, there is known an on-vehicle apparatus having a function of receiving a radio
broadcast or playing a CD in order to enjoy music in a vehicle.
Also, recently, for example, in the rear seat, one that can enjoy the sound of a sound source
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1
different from the sound of the sound source output from the speaker in the car using a
headphone device has been proposed (see Patent Document 1). Japanese Patent Application
Laid-Open No. 11-041691
[0003]
However, in the prior art, since the user listens to the voice via the headphone device, there is a
problem that the voice from the outside (for example, the driver's call) can not be heard. As one
method for solving such a problem, for example, in the field of aircraft, it is known to suspend
the sound output from a headphone device and to send an announcement through the
headphone device. However, when this method is applied to a vehicle, even when it is desired to
call a specific passenger, there is a problem that the driver's voice may flow through the
headphone devices of all the members. .
[0004]
The present invention has been made in view of the above-described circumstances, and it is
possible to transmit an audio from the driver only to a passenger wearing the headphone device
selected by the driver, and a control method of the in-vehicle apparatus. And providing a control
program.
[0005]
In order to achieve the above object, the present invention relates to an on-vehicle apparatus in
which a plurality of headphone devices are connected and which transmits audio sound to an
occupant of a vehicle equipped with the headphone device via the headphone devices. Audio
input means for inputting the voice of the person, and control means for controlling the driver's
voice inputted by the audio input means to be output only to the headphone device selected
based on an external instruction. It is characterized by
[0006]
In this case, the apparatus further comprises detection means for detecting whether or not the
driver's voice is input by the voice input means, and the control means is configured to detect an
input of the driver's voice from the outside when the detection means is detected. The driver's
voice may be output only to the headphone device selected on the basis of the instruction.
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2
In addition, when the driver's voice is output to the headphone device, the control means may be
configured to interrupt the output of the audio voice and control to output only the driver's voice.
Further, when outputting the driver's voice to the headphone device, the control means adjusts
the volume of the audio voice, and performs control so that the driver's voice is superimposed
and output on the adjusted audio voice. As well.
[0007]
Further, when outputting the driver's voice to the headphone device, the control means
interrupts the output of the audio voice and controls so as to output only the driver's voice, and
the detection means If the input is not detected for a predetermined time or more, the audio
voice may be output to the headphone device at a volume before the driver's voice is output.
Further, when outputting the driver's voice to the headphone device, the control means controls
the volume of the audio voice to perform control so that the driver's voice is superimposed and
output on the adjusted audio voice. If the driver's voice input is not detected for a predetermined
time or more by the detection means, the audio voice may be output to the headphone device at
a volume before the driver's voice is output.
[0008]
In addition, the vehicle is provided with a display monitor, and the control means displays, when
any headphone device is selected based on an external instruction, which headphone device is
selected. It may be configured to be displayed on a monitor. Also, the plurality of headphone
devices may be connected by near field communication. Further, the in-vehicle apparatus is
provided with or connected to a first transmission / reception unit that transmits an audio voice
and a driver's voice as an audio signal, and the headphone device receives an audio signal
transmitted from the first transmission / reception unit 2 A transmitting / receiving unit may be
provided or connected. Further, the short distance wireless communication may be configured to
conform to the Bluetooth (registered trademark) standard.
[0009]
Further, according to the present invention, there is provided a method of controlling an on-
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vehicle apparatus to which a plurality of headphone devices are connected and which transmits
an audio sound to a passenger of a vehicle equipped with the headphone device via the
headphone device. And a control process for controlling the driver's voice input by the voice
input process to be output only to the headphone device selected based on an external
instruction. Do.
[0010]
Further, according to the present invention, there is provided a control program for controlling,
by a computer, an in-vehicle device to which a plurality of headphone devices are connected and
which transmits an audio sound to a passenger of a vehicle equipped with the headphone device
via the headphone device. The voice of the driver of the vehicle is input, and the voice of the
driver is output only to the headphone device selected based on an instruction from the outside.
[0011]
According to the present invention, the voice from the driver can be transmitted only to the
passenger wearing the headphone selected by the driver.
[0012]
FIG. 1 is a block diagram showing a functional configuration of an in-vehicle apparatus 10
according to an embodiment of the present invention.
A plurality of (three in the present embodiment) headphone devices 100, 101, 102 are wirelessly
connected to the in-vehicle device 10.
Further, the in-vehicle device 10 is configured to be able to output a plurality of audio voices (for
example, radio voice, CD, MD, DVD, television voice, etc.), and the passenger of the vehicle is the
first to third headphone devices. By mounting 100 to 102, it is possible to listen to separate
audio sounds.
Each passenger can also listen to the same audio sound.
[0013]
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The in-vehicle apparatus 10 includes a control unit (control means, detection means) 20, an
operation unit 21 connected to the control unit 20 for performing various operations of the invehicle apparatus 10, an AV (Audio Visual) player 22, and a microphone A voice input means 23,
a switch 24, an audio processor 25, and display monitors 26 A and 26 B are provided. The
control unit 20 centrally controls each unit of the in-vehicle apparatus 10, and based on the ROM
31 storing the control program and control data in advance and the control program in the ROM
31, the entire in-vehicle apparatus 10 is implemented. It has CPU32 to control, and RAM33
which stores various data temporarily.
[0014]
The AV player 22 outputs audio sound to the audio processor 25 under the control of the control
unit 20, and includes a radio tuner circuit, a CD player, an MD player, a DVD player, a television
tuner circuit, etc. (not shown). Have.
[0015]
The microphone 23 is for inputting the voice of the passenger to the in-vehicle apparatus 10
under the control of the control unit 20.
In this configuration, the microphone 23 is disposed in the driver's mouth, and the driver's voice
(call) can be input to the on-vehicle device 10 through the microphone 23.
[0016]
The switch 24 is for selecting which of the headphone devices 100 to 102 the sound input by the
microphone 23 is to be output based on an instruction from the driver (external). The switch 24
may be provided on the in-vehicle device 10, or may be provided on, for example, a steering
wheel of a vehicle so that the driver can easily operate even while the vehicle is in operation.
good. Further, the audio processor 25 performs volume adjustment and the like on the audio
sound input from the AV playback device 22.
[0017]
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The display monitors 26A and 26B display television images and DVD images, and display menu
screens and operation screens for executing various operations of the in-vehicle apparatus 10. In
this configuration, a driver's seat side display monitor 26A is provided on the driver's side of the
vehicle, and a rear seat side display monitor 26B is provided on the rear seat side.
[0018]
Further, the in-vehicle device 10 is connected to a first transmission / reception unit 41 that
modulates a signal of audio sound input from the audio processor 25 into a signal for
transmission and transmits the signal. The first transmission / reception unit 41 performs shortdistance wireless communication with the first to third headphones 100 to 102 arranged in a
car, for example, in compliance with the Bluetooth standard. The antenna 42 is provided to
transmit and receive signals. Specifically, the first transmission / reception unit 41 is a card-type
communication module, and is connected to the on-vehicle device 10 by inserting it into a card
slot (not shown) formed on the on-vehicle device 10. .
[0019]
On the other hand, the first to third headphone devices 100 to 102 perform the short distance
wireless communication with the first transmitting and receiving unit 41, and the voices
demodulated by the second transmitting and receiving units 100a to 102a. And the headphone
main body 100b-102b which outputs. The second transmission / reception units 100a to 102a
demodulate the signals received from the first transmission / reception unit 41, and output the
demodulated signals to the headphone bodies 100b to 102b. The second transmission /
reception units 100a to 102a are each a headphone body 100b. ~ 102b is mounted. In addition,
the second transmitting and receiving units 100a to 102a include antennas 100c to 102c for
transmitting and receiving signals of near field communication. The communication method is
not limited to Bluetooth, and may be another wireless communication method such as wireless
LAN or infrared (InfraRed) communication.
[0020]
The first to third headphone devices 100 to 102 are disposed in the rear seat of the vehicle.
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Therefore, by displaying television video or DVD video on the display monitor 26 disposed in the
back seat and outputting television audio or DVD audio to each headphone device 100 to 102, a
movie by television broadcast or DVD reproduction in the back seat You can enjoy the
[0021]
Next, the operation (interrupt processing) of the in-vehicle apparatus 10 having the above
configuration will be described. This process is executed when audio audio is output from the invehicle device 10 to the first to third headphone devices 100 to 102, and this audio audio is
interrupted to select the driver's voice selected headphone device Output.
[0022]
First, the control unit 20 determines whether the driver's voice is input to the control unit 20 via
the microphone 23 (step S1). Specifically, when the control unit 20 detects a voice having a
predetermined volume or more via the microphone 23, the control unit 20 determines that the
driver's voice is input. In this determination, when the driver's voice is not input, step 1 is
repeatedly executed, and when the driver's voice is input, the process proceeds to step S2.
[0023]
Subsequently, the control unit 20 detects the headphone device selected based on the driver's
instruction (step S2). The selection of the headphone device is made by the driver operating the
switch 24 in advance. For example, when the driver wants to output sound to the first headphone
device 100, the driver operates the switch 24 corresponding to the first headphone device 100.
[0024]
Next, the control unit 20 outputs voices from the driver only to the headphone device selected
based on the driver's instruction (steps S3a to S3c). For example, when the first headphone
device 100 is selected, the control unit 20 suspends the output of audio sound and outputs the
driver's voice only to the first headphone device 100, and the rear seat side. The display panel
26B displays that the driver's voice is output (step S4). In this case, the first transmission /
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reception unit 41 transmits a signal obtained by modulating the driver's voice instead of the
audio voice to the address corresponding to the first headphone device 100. On the other hand,
the control unit 20 returns the process to step 1 for the second and third headphone devices 101
and 102 which have not been selected, and continues to output audio sound.
[0025]
When the output of the voice from the driver is finished, the control unit 20 cancels the interrupt
process (step S5), returns the process to step S1, and outputs the audio voice to the first
headphone device 100. Return to Here, whether or not the output of the driver's voice has ended
is determined by the presence or absence of the driver's voice input. Specifically, when no sound
is detected through the microphone 23, that is, when the silent state continues for a
predetermined time or more, it is determined that the driver's output of the sound has ended.
The driver may end the output of the voice by operating the switch 24.
[0026]
In the present embodiment, by operating the switch 24 of the in-vehicle device 10, a specific
headphone device can be selected, and the driver's voice can be transmitted only to the
passenger wearing the headphone device. Therefore, the voice can be transmitted only to the
intended passenger without disturbing the passenger wearing the other headphone device.
[0027]
Further, in the present embodiment, since the on-vehicle device 10 and the headphone devices
100 to 102 are connected by short distance wireless communication, the headphone device 100
to 100 to 100 can also be outside the vehicle within the range of short distance wireless
communication. While being able to enjoy music via 102, audio can be transmitted via the
microphone 23 to the wearer of this headphone device 100-102.
[0028]
Further, in the present embodiment, when the voice from the driver is transmitted to the selected
headphone device, the passenger wearing the headphone temporarily suspends the output of the
audio voice output to the headphone device. The driver's voice can be easily heard, and the
driver's voice can be transmitted reliably.
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[0029]
Further, in the present embodiment, the driver seat side display monitor 26A and the rear seat
side display monitor 26B are provided on the driver seat side and the rear seat of the vehicle, and
one of the headphone devices is selected. In order to display which of the headphone devices is
selected on the display monitors 26A and 26B (for example, icon display etc.), the passenger
wearing the selected headphone device not only hears, not only hearing. Also by visual
observation, the driver can know that there is a message, and the driver can also confirm that the
voice is transmitted to the passenger.
[0030]
The embodiment described above is merely an aspect of the present invention, and any
modification is possible within the scope of the present invention.
For example, in the present embodiment, the on-vehicle device 10 and the headphone devices
100 to 102 are wirelessly connected to each other. However, the present invention is not limited
thereto, and may be wired.
Further, in the present embodiment, the first transmission / reception unit 41 is configured to be
connected to the on-vehicle device 10 by being inserted into a card slot (not shown) of the onvehicle device 10, but the present invention is not limited thereto. The in-vehicle apparatus 10
may be configured to mount the first transmission / reception unit.
[0031]
Further, in the present embodiment, it is detected whether or not the driver's voice is input to the
control unit 20 via the microphone 23, and when the voice input is detected, the voice is only
transmitted to the selected headphone device. Although the configuration for outputting has
been described, the present invention is not limited to this, and the voice output to the
headphone device is switched from the audio voice to the driver's voice only by the operation of
the switch 24 regardless of the driver's voice input It is good also as composition.
[0032]
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Further, in the present embodiment, the configuration has been described in which the audio
sound output to the headphone device is interrupted when the sound from the driver is output to
the selected headphone device, but the present invention is not limited to this. The volume of the
audio voice may be adjusted, and the driver's voice may be superimposed on the adjusted audio
voice and output.
According to this, it is possible to have a conversation while enjoying the music, and a
comfortable in-vehicle space can be realized.
[0033]
In the above description, the control program for controlling the in-vehicle apparatus 10 is
stored in advance in the ROM 31 of the control unit 20. However, recording media such as
various magnetic disks, optical disks, and memory cards are described. It is also possible to
record the control program in advance, read from these recording media, and install it.
It is also possible to provide a communication interface, download the control program via a
network such as the Internet, a LAN, etc., and install and execute the control program. By
configuring in this way, it is possible to configure an on-vehicle apparatus that is more
sophisticated in software or more reliable.
[0034]
It is a block diagram showing functional composition of an in-vehicle device concerning this
embodiment. It is a flowchart which shows operation | movement of a vehicle-mounted
apparatus.
Explanation of sign
[0035]
DESCRIPTION OF SYMBOLS 10 in-vehicle apparatus 20 control part (control means, detection
means) 21 operation part 22 AV reproducing machine 23 microphone (voice input means) 24
switch 26A, 26B display monitor 41 1st transmission / reception part 42 antenna 100-102
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headphone apparatus 100a-102a Second transmission / reception unit 100b to 102b
Headphone body 100c to 102c antenna
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