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JP2006067353

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DESCRIPTION JP2006067353
PROBLEM TO BE SOLVED: In a vehicle-mounted acoustic apparatus equipped with a plurality of
acoustic sources and selectively reproducing sounds from a plurality of acoustic sources in a car,
it is easy to easily perceive the selection operation of the acoustic sources and extremely easy to
select the acoustic sources. Make it possible. SOLUTION: The on-vehicle acoustic device has a
plurality of acoustic sources 11 to 14 which output mutually different acoustic signals, a speaker
23 for outputting an acoustic output from the acoustic source, and a rear seat headphone 24.
The microcontroller 18 and the audio signal processing device 15 select and operate one of the
acoustic sources according to the first acoustic selection signal for selectively operating the
acoustic source to be output to the speaker, and output the acoustic source to the rear seat
headphones. According to the second sound selection signal to be selected and operated, one of
the sound sources is selectively operated, and further, the sound information from the sound
memory 17 storing the sound information indicating the selection operation according to the
second sound selection signal Read out and give to the rear seat headphones. [Selected figure]
Figure 1
In-vehicle acoustic device
[0001]
The present invention relates to an on-vehicle acoustic apparatus including a plurality of acoustic
sources, and more particularly to an on-vehicle acoustic apparatus in which each passenger can
select and listen to a desired acoustic source from a plurality of acoustic sources and the like.
[0002]
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1
Generally, a plurality of acoustic sources (for example, a radio, a CD, a cassette tape, etc.) are
provided as vehicle-mounted acoustic devices provided in a mobile object such as a vehicle, and
sounds such as music are selectively selected from the plurality of acoustic sources. There are
some which are made to output, and there are some which made it possible for each of a
passenger | crew to select an acoustic source arbitrarily in such a vehicle-mounted acoustic
apparatus.
Then, when selecting an acoustic source, there is one that displays information on which acoustic
source has already been selected among a plurality of acoustic sources, and the acoustic source
is selected in a short time.
[0003]
Here, for example, a playback device provided with a plurality of acoustic sources, a controller,
an amplifier and a speaker of a first system, an amplifier of a second system, a headphone, a
display unit, an amplifier of a third system, headphones, and the like. A display unit is provided,
and a message to the effect that a compact disc has already been selected is displayed on the
display unit of one passenger, the passenger knows the sound source not selected yet from a
plurality of sound sources, and the reproducing apparatus It is made to prevent duplication
selection of (refer to, for example, Patent Document 1).
[0004]
Furthermore, a headphone device is often used when listening to another sound source in a rear
seat etc., and when transmitting an acoustic signal to the headphone device, the headphone
device incorporates a receiver to wirelessly. There is something that I am trying to send.
Then, in the headphone device using wireless, in order to listen to the sound such as music stably
even outside the vehicle, when the headphone device is used, the control unit controls the
antenna switching unit to connect the antenna to the transmission unit side At the same time as
switching, an instruction to change the antenna length is sent to the power antenna control unit,
and the power antenna control unit sets the antenna length to a length suitable for transmission,
and an audio signal to be output from the speaker by the audio processor Are input to an
amplifier and output from a speaker, and an audio signal is modulated to a transmission signal by
a transmission unit and transmitted to a headphone device (for example, see Patent Document 2).
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2
[0005]
JP-A-11-41691 (paragraphs (0011) to (0019), FIG. 1 to FIG. 2) JP-A 2001-136094 (paragraphs
(0018) to (0032), FIG. 1 to FIG. 3) )
[0006]
Since the conventional on-vehicle acoustic device is configured as described above, when one of
the occupants selects the acoustic source, as a result of the information on the already selected
acoustic source being displayed, the reproduction device already selected is selected. Although it
is possible to prevent an adverse effect of selecting in duplicate, when one of the occupants
selects an acoustic source, information (selection information) on the already selected acoustic
source is displayed on a display unit such as a monitor. For example, in the rear seat, when it is
intended to listen to a desired sound with the headphone device, when the selection information
is displayed on the display unit arranged on the driver's seat side (the front seat side), the rear
seat passenger It is often difficult to view selection information.
Therefore, it is necessary to separately provide a display unit on the rear seat side, and as a
result, there is a problem that the on-vehicle acoustic device itself becomes expensive.
[0007]
Furthermore, there is a problem that it is extremely difficult for the visually impaired person to
select and operate a desired sound source because the visually impaired person can not visually
recognize the selection information displayed on the display unit.
[0008]
In addition, although the conventional on-vehicle acoustic device allows the user to listen to the
sound using the headphone device, for example, a passenger sitting in the back seat can easily
operate a desired acoustic source. There was a problem that it was difficult.
[0009]
The present invention has been made to solve the problems as described above, and it is
equipped with a plurality of acoustic sources, and when selecting sounds from a plurality of
acoustic sources selectively in a car, it is easy to select the acoustic sources. It is an object of the
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3
present invention to provide an on-vehicle acoustic device that is extremely easy to perceive and
select sound sources.
[0010]
The on-vehicle acoustic device according to the present invention comprises a plurality of
acoustic sources for outputting different acoustic signals, first and second acoustic output units
for outputting acoustic outputs from the acoustic sources, and a first acoustic output. A second
sound selecting operation of one of the sound sources in response to a first sound selection
signal for selecting the sound source to be output to the unit, and selecting operation of the
sound source to be output to the second sound output unit Selection control means for selecting
and operating one of the sound sources in response to the selection signal, storage means storing
voice information indicating the selection operation in accordance with the second sound
selection signal, and in response to the second sound selection signal And an information reading
means for reading out the audio information and giving it to the second sound output unit.
[0011]
According to the present invention, voice information indicating a selection operation according
to the second sound selection signal is stored in the storage means, and the storage means is
accessed according to the second sound selection signal to read out the voice information Since
the second audio output unit is configured to be supplied, the passenger who listens to the audio
output from the second audio output unit can easily perceive the selection operation of the audio
source by the audio information, and selection of the audio source There is an effect that the
operation is extremely easy.
[0012]
Embodiment 1
FIG. 1 is a block diagram showing an on-vehicle acoustic device according to a first embodiment
of the present invention. The on-vehicle acoustic device 10 shown in the figure has a front seat
unit 10a. It is disposed near the driver's seat on the front seat side.
The front seat unit 10a includes, for example, a radio 11, a compact disk drive (CD) 12, a cassette
tape playback device (Tape) 13, and an auxiliary device (AUX) 14 as sound sources (sound
sources).
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The radio 11, the CD 12, the tape 13, and the AUX 14 are connected to the audio signal
processing device 15.
Furthermore, the on-vehicle acoustic device 10 includes an amplifier 16, an audio memory
(storage unit) 17, a microcontroller 18, a modulation transmission unit 19, a remote control light
receiving unit 20, a front seat display unit 21, and an operation unit 22. The front seat display
unit 21 is attached to the front seat side (that is, the driver's seat side) of the vehicle, and the
operation unit 22 is also attached to the front seat side.
[0013]
A speaker (first sound output unit) 23 is connected to the aforementioned amplifier 16 via a
connector 16 a, and a headphone device (second sound output unit) 24 is connected to the
modulation transmission means 19 by wireless ( The headphone device 24 has a built-in wireless
receiver).
Further, the remote control light receiving unit 20 receives a selection signal from the remote
control 25 as described later. In the illustrated example, the headphone device 24 and the remote
control 25 are disposed in the rear seat (hereinafter referred to as rear seat headphones and rear
seat remote control).
[0014]
Further, as illustrated, the audio signal processing device 15 includes first to third audio signal
processing units 15a to 15c, a source selection unit 15d, and a mixer 15e, and as described later,
the operation unit The audio signal (audio signal) from the audio source selected in 22 is
supplied to the audio signal processing unit 15a by the source selection unit 15d, and is output
from the speaker 23 via the amplifier 16a. On the other hand, the audio signal from the audio
source selected by the rear seat remote control 25 is given to the audio signal processing unit
15b by the source selection unit 15d and mixed with the audio information from the audio
memory 17 in the mixer 15e. The audio signal is processed by the audio signal processing unit
15 c and the audio signal is supplied from the modulation transmission means 19 to the rear seat
headphone 24.
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[0015]
Next, the operation will be described. Now, when the driver selects a desired sound source, the
operator operates the operation unit 22 provided on the front seat side to select the desired
sound source. For example, when the driver selects the radio 11 by the operation unit 22, the
microcontroller 18 recognizes that the radio 11 is selected by the operation unit 22, and the
microcontroller 18 indicates that the radio 11 is selected. The selection signal (first sound
selection signal) is applied to the audio signal processing device 15. Then, in the audio signal
processing device 15, the radio 11 is selected by the source selection unit 15d according to the
front seat source selection signal, and the radio 11 and the audio signal processing unit 15a are
connected.
[0016]
Although not shown, the operation unit 22 includes, for example, a power on / off button
(Power), a mode switching button (Mode), a rewind button (REW), a fast forward button (FF), and
an up button (Seek Up / Track ( There are various operation buttons such as Chapter) Up), Down
button (Seek Down / Track (Chapter) Down), Play button (Play), Pause (Pause), and Stop button
(Stop). Depending on the operation button, any one of the sound sources is selected to perform
reproduction or the like.
[0017]
Here, the radio 11, the CD 12, the tape 13, and the AUX 14 are turned on / off by the power, and
one of the radio 11, the CD 12, the tape 13, and the AUX 14 is selected by the mode.
Then, fast forward and rewind of Tape 13 are performed by REW and FF, respectively, and track
number etc. of CD 12 is up and down by Seek Up / Track (Chapter) Up and Seek Down / Track
(Chapter) Down. A search for numbers etc. is performed. Also, the play, pause, and stop of the CD
12 or the tape 13 are performed by Play, Pause, and Stop, respectively.
[0018]
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When the driver tunes the radio 11 with the operation unit 22 to select a desired channel (a
preset channel may be selected by the preset button), the output signal from the radio 11 is
transmitted via the source selection unit 15d. The signal is supplied to the audio signal
processing unit 15a, where the signal processing is performed, and then the signal is output from
the speaker 23 through the amplifier 16. The various operation buttons described above are
displayed on the screen of the front seat display unit 21. The various operations buttons on the
front seat display unit 21 may be touched to perform the above-described operation. An
operation state by the operation unit 22 may be displayed on the display unit 21.
[0019]
FIG. 2 is a view showing an example of the button arrangement of the rear seat remote control
25. The rear seat remote control 25 includes Power 31, Mode 32, Rew 33, FF 34, Seek Up /
Track (Chapter) Up 35, and Seek Down / Track (Chapter) Down 36. , Play 37, stop 38, Pause 39,
and channel preset / disc buttons (Channel Preset / Disc) 40 to 45 are provided as various
operation buttons, and the operation of these various operation buttons causes selection of an
acoustic source as will be described later. Operations such as reproduction and stop are
performed.
[0020]
The channel Preset / Disc 40 to 45 are used when presetting the channel of the radio 11 and
when presetting the disc of the CD 12.
In FIG. 2, channel Preset / Disc 40 to 45 are respectively assigned numbers “1” to “6”, and
the channel or disc number is specified by these numbers.
[0021]
Here, if the passenger in the rear seat turns on the Power 31 by the rear seat remote control 25
and selects the CD 12 by the Mode 32, the remote control light receiver 20 receives a remote
control signal indicating that the CD 12 is selected from the rear seat remote control 25. , Is
converted to an electrical signal and supplied to the microcontroller 18. When the
microcontroller 18 receives the remote control signal, the rear seat (that is, the rear seat
headphone 24) recognizes that the CD 12 is selected, and the remote control selection signal
(second acoustic selection signal) indicating that the CD 12 is selected. To the audio signal
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processing device 15. Then, in the audio signal processing device 15, the CD 12 is selected by the
source selection unit 15d according to the remote control selection signal, and the CD 12 and the
audio signal processing unit 15b are connected.
[0022]
In response to the remote control selection signal described above, the audio signal processing
device 15 accesses the audio memory 17 to read out audio information (audio message) from the
audio memory 17. FIG. 3 is a view showing an example of the voice information stored in the
voice memory 17. In the voice memory 17, voice information corresponding to various operation
buttons of the rear seat remote controller 25 described above is stored. In FIG. 3, a row indicates
an acoustic source, and a column indicates various operation buttons of the rear seat remote
control 25. Then, as described above, when the CD 12 is selected by the rear seat remote control
25, the audio signal processing device 15 reads out the audio information indicating Mode =
“CD” from the audio memory 17 in FIG. 3 and gives it to the mixer 15 e .
[0023]
In this state, since the CD 12 has not been reproduced yet, no output signal is sent from the CD
12, and audio information indicating Mode = "CD" is given to the audio signal processing unit
15c and processed here. Then, it is sent to the rear seat headphones 24 by the modulation
transmission means 19. Then, audio information "CD" is transmitted from the rear seat
headphones 24, and the rear seat occupant wearing the rear seat headphones 24 knows that the
CD is selected.
[0024]
Thereafter, when the passenger in the rear seat presses Play 37, the CD 12 is reproduced, and
the output signal from the CD 12 is given to the audio signal processing unit 15b via the source
selection unit 15d and signal processed here (for example, audio The signal processing unit 15b
performs processing to reduce the output signal level from the CD 12 to a predetermined level).
On the other hand, a remote control selection signal indicating that Play 37 is selected is given
from the microcontroller 18 to the audio signal processing device 15, and the audio signal
processing device 15 reads out audio information indicating CD = Play from the audio memory
17, and mixes Give to 15e. Then, the CD output signal and the audio information are mixed by
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the mixer 15 e, subjected to audio processing by the audio signal processing unit 15 c, and then
sent to the rear seat headphone 24 by the modulation transmission means 19. Then, audio
information "Play" is sent from the rear seat headphone 24 together with the CD output signal,
and the rear seat occupant wearing the rear seat headphone 24 knows that the CD has been
played back.
[0025]
Thus, every time the rear seat occupant operates the rear seat remote control 25, the remote
control selection signal is given to the audio signal processing device 15, and the audio signal
processing device 15 generates an audio corresponding to the operation button indicated by the
remote control selection signal. Information is read out from the voice memory 17 and given to
the rear seat headphones 24. For example, when Track Up is performed by the rear seat remote
control 25, audio information indicating "Track Up" is sent to the rear seat headphone 24.
[0026]
In this way, since the voice information corresponding to the operation button of the rear seat
remote control 25 is transmitted from the rear seat headphones, the rear seat occupant can know
the contents of the operation of the rear seat properly, and the selection and operation of the
sound source Can be done very easily.
[0027]
In the example shown in FIG. 1, the audio signal processor 15 and the microcontroller 18
collectively function as selection control means and information reading means.
In the above description, an example in which the rear seat passenger operates the rear seat
remote control 25 has been described, but the remote control 25 may be performed by a
passenger other than the driver and by the passenger wearing the headphone device 24. In place
of the headphone device 24, another speaker may be provided to output audio information and
the like from the speaker.
[0028]
Furthermore, in the above-mentioned example, although the headphone device 24 is wirelessly
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connected to the audio signal processing device 15 by the modulation transmission means 19,
the amplifier 19a is used instead of the modulation transmission means 19 as shown in FIG. The
headphone device 24 may be connected to the connector 19 b by connecting the audio signal
processing unit 15 c and the amplifier 19 a.
[0029]
FIG. 5 is a view showing another example of the on-vehicle acoustic device 10 according to the
present invention. In FIG. 5, the same components as those in FIG.
In the illustrated example, a source selection unit 52 is connected to the audio signal processing
device 51, and the radio selection 11, the CD 12, the tape 13, and the audio memory 17 are
connected to the source selection unit 52. Then, the microcontroller 18 controls the source
selection unit 52 based on the front seat selection signal or the remote control selection signal
described above to selectively connect the sound source to the audio signal processing device 51.
[0030]
Further, the microcontroller 18 accesses the voice memory 17 in response to the remote control
selection signal, and gives voice information corresponding to the operation button operated by
the rear seat remote control 25 to the voice signal processing device 51 via the source selection
unit 52. . In the audio signal processing device 51, as described in FIG. 1, the first processing line
connected to the speaker 23 and the second processing line connected to the rear seat
headphone 24 are defined. The sound source specified by the selection signal is connected to the
first processing line by the source selection unit 52, and the sound source selected by the remote
control selection signal is connected to the second processing line by the source selection unit
52. 17 will be connected to the second processing line. Then, as described in FIG. 1, the audio
information read from the audio memory 17 is output to the rear seat headphone 24 in response
to the operation of the remote control operation button.
[0031]
In the example shown in FIG. 5, the microcontroller 18 and the source selection unit 52
collectively function as selection control means and information reading means.
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[0032]
As described above, according to the first embodiment, the microcontroller and / or the audio
signal processing apparatus select and operate one of the acoustic sources according to the
remote control acoustic selection signal for selectively operating the acoustic source by the
remote control 25. Since the audio memory 17 is accessed to read out the audio information and
give it to the headphone device 24, the passenger who listens to the audio output from the
headphone device 24 can easily perceive the selection operation of the audio source by the audio
information. There is an effect that the selection operation of the sound source can be performed
extremely easily.
[0033]
According to the first embodiment, the operation unit 22 for outputting the front seat sound
selection signal is provided, and the audio signal processing device, the microcontroller, and the
audio memory are disposed on the front seat side of the vehicle as the front panel. Since the
remote control sound selection signal is received on the front panel side by the operation, the
passenger wearing the headphone device can easily perceive the operating condition of the
sound source even if the front panel can not be visually recognized. There is.
[0034]
It is a block diagram which shows an example of the vehicle-mounted acoustic apparatus by
Embodiment 1 of this invention.
It is a figure which shows an example of the operation button arrangement | positioning of the
remote control shown in FIG.
It is a figure which shows an example of the audio | voice information stored in the audio | voice
memory shown in FIG.
It is a block diagram which shows the other example of the vehicle-mounted acoustic apparatus
by Embodiment 1 of this invention. It is a block diagram which shows the further another
example of the vehicle-mounted acoustic apparatus by Embodiment 1 of this invention.
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Explanation of sign
[0035]
Reference Signs List 10 in-vehicle acoustic device 10 a front seat unit 11 radio 12 compact disk
device (CD) 13 cassette tape reproducing device (Tape) 14 auxiliary device (AUX) 15 audio signal
processing device 15 a to 15 c audio signal processing unit , 15d source selection unit, 15e
mixer, 16, 19a amplifier, 16a, 19b connector, 17 voice memory (storage unit), 18
microcontroller, 19 modulation transmission unit, 20 remote control light receiving unit, 21
front seat display unit, 22 operation , 23 speakers (first sound output unit), 24 headphone
devices (rear seat headphone: second sound output unit), 25 remote control (rear seat remote
control), 31 Power, 32 Mode, 33 Rew, 34 FF, 35 Seek Up / Track (Chapter) Up, 36 Seek Dow /
Track (Chapter) Down, 37 Play, 38 Stop, 39 Pause, 40~45 channel preset / record button
(Channel Preset / Disc), 51 audio signal processing device, 52 the source selector.
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