JP2006067353A - Onboard acoustic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it extremely easy to perform a selecting operation of sound sources by easily sensing the selecting operation of sound sources, in an onboard acoustic device provided with two or more sound sources for selectively reproducing sound from two or more sound sources in vehicle. <P>SOLUTION: The onboard acoustic device has two or more sound sources 11-14 for outputting mutually distinct sound signals, and a speaker 23 and a backseat headphone 24 for outputting sound from sound sources. A micro-controller 18 and a voice signal processor 15 selectively operate one of the sound sources in accordance with the first sound selecting signal for selectively operating sound sources for outputting at a speaker, selectively operate one of the sound sources in accordance with the second sound selecting signal for selectively operating sound sources for outputting at the backseat headphone, and read out voice information from a voice memory 17 for storing a voice indicating a selecting operation in accordance with the second sound selecting signal to give it to the backseat headphone. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an on-vehicle acoustic device including a plurality of acoustic sources, and more particularly to an on-vehicle acoustic device that allows each occupant to select and listen to a desired acoustic source from a plurality of acoustic sources.

  Generally, as an in-vehicle acoustic device provided in a moving body such as a vehicle, a plurality of acoustic sources (for example, a radio, a CD, a cassette tape, etc.) are provided, and sound such as music is selectively selected from these plural acoustic sources. Some of these in-vehicle acoustic devices allow the occupants to arbitrarily select an acoustic source. When selecting an acoustic source, information indicating which acoustic source has already been selected among a plurality of acoustic sources is displayed, and the acoustic source is selected in a short time.

  Here, for example, the on-vehicle acoustic device includes a playback device including a plurality of acoustic sources, a controller, a first system amplifier and speaker, a second system amplifier, headphones, and a display unit, a third system amplifier, headphones, and A display unit that displays a message indicating that a compact disc has already been selected on the display unit of one occupant, the occupant knows an acoustic source that has not yet been selected from a plurality of acoustic sources, and a playback device; (See, for example, Patent Document 1).

  In addition, a headphone device is often used when listening to another acoustic source in the rear seat or the like, and when transmitting an acoustic signal to the headphone device, the headphone device has a built-in receiving device and is wireless. There is something to send. Then, in a headphone device using radio, in order to listen to 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 transmitting unit side. In addition to switching, an antenna length change instruction is sent to the power antenna control unit, the antenna length is set to a length suitable for transmission by the power antenna control unit, and the audio signal that the audio processor should output from the speaker Is input to an amplifier and output from a speaker, and an audio signal is modulated into a transmission signal by a transmission unit and transmitted to a headphone device (for example, see Patent Document 2).

Japanese Patent Laid-Open No. 11-41691 (paragraph (0011) to paragraph (0019), FIGS. 1 to 2) JP 2001-136094 A (paragraph (0018) to paragraph (0032), FIGS. 1 to 3)

  Since the conventional in-vehicle acoustic device is configured as described above, when one of the occupants selects the acoustic source, information on the already selected acoustic source is displayed. Although it is possible to prevent the harmful effect of redundant selection, when one of the passengers selects an acoustic source, information on the already selected acoustic source (selection information) is displayed on a display unit such as a monitor. For example, in a rear seat, when listening to a desired sound with a headphone device, if the selection information is displayed on the display section arranged on the driver's seat side (the front seat side), the passenger in the rear seat It is often difficult to view the selection information. For this reason, it is necessary to newly provide a display part on the rear seat side, resulting in a problem that the on-vehicle acoustic device itself becomes expensive.

  Furthermore, since the visually impaired person cannot visually recognize the selection information displayed on the display unit, there is a problem that it is extremely difficult for the visually impaired person to select and operate a desired acoustic source.

  In addition, in the conventional in-vehicle acoustic device, although it is possible to listen to the sound using the headphone device, for example, a passenger seated in the rear seat can easily operate a desired acoustic source. There was a difficult problem.

  The present invention has been made to solve the above-described problems, and includes a plurality of sound sources, and facilitates sound source selection operations when selectively reproducing sound from a plurality of sound sources in a vehicle. It is an object of the present invention to obtain an in-vehicle acoustic device that can be perceived as a sound source and that makes it easy to select an acoustic source.

  The on-vehicle acoustic device according to the present invention includes a plurality of acoustic sources that output different acoustic signals, first and second acoustic output units for outputting acoustic outputs from these acoustic sources, and a first acoustic output. A second sound for selecting one of the sound sources according to a first sound selection signal for selecting and operating the sound source to be output to the unit, and for selecting and selecting the sound source to be output to the second sound output unit. Selection control means for selecting and operating one of the acoustic sources according to the selection signal, storage means for storing voice information indicating the selection operation according to the second acoustic selection signal, and according to the second acoustic selection signal And an information reading unit that accesses the storage unit to read out the voice information and gives it to the second sound output unit.

  According to this invention, the voice information indicating the selection operation according to the second acoustic selection signal is stored in the storage means, and the voice information is read by accessing the storage means according to the second acoustic selection signal. Since the second sound output unit is configured to give the sound output, the passenger who listens to the sound output from the second sound output unit can easily perceive the sound source selection operation based on the sound information. There is an effect that the operation can be performed very easily.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing an in-vehicle acoustic device according to Embodiment 1 of the present invention. The illustrated in-vehicle acoustic device 10 has a front seat unit 10a, and the front seat unit 10a is, for example, a vehicle. On the front seat side, it is arranged near the driver's seat. The front seat unit 10 a includes, for example, a radio 11, a compact disc device (CD) 12, a cassette tape playback device (Tape) 13, and an auxiliary device (AUX) 14 as acoustic sources (sound sources). These radio 11, CD 12, Tape 13, and AUX 14 are connected to the audio signal processing device 15. Further, the in-vehicle acoustic device 10 includes an amplifier 16, a sound memory (storage means) 17, a microcontroller 18, a modulation transmission means 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 seat side) of the vehicle, and the operation unit 22 is also attached to the front seat side.

  A speaker (first acoustic output unit) 23 is connected to the amplifier 16 via a connector 16a, and a headphone device (second acoustic output unit) 24 is connected to the modulation transmission means 19 wirelessly ( The headphone device 24 has a built-in wireless receiving device). Further, the remote controller light receiving unit 20 receives a selection signal from the remote controller 25 as will be described later. In the illustrated example, it is assumed that the headphone device 24 and the remote controller 25 are disposed in the rear seat (hereinafter referred to as the rear seat headphones and the rear seat remote controller).

  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 as shown in the figure. The audio signal (audio signal) from the audio source selected in 22 is given to the audio signal processing unit 15a by the source selection unit 15d, and is output from the speaker 23 through the amplifier 16a. On the other hand, the audio signal from the acoustic source selected by the rear seat remote controller 25 is given to the audio signal processing unit 15b by the source selection unit 15d, mixed with the audio information from the audio memory 17 by the mixer 15e, and further The audio signal is processed by the audio signal processing unit 15 c and an audio signal is given from the modulation transmission means 19 to the rear seat headphones 24.

Next, the operation will be described.
Now, when the driver selects a desired sound source, the driver 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 has been selected by the operation unit 22, and the microcontroller 18 indicates that the radio 11 has been selected. The selection signal first acoustic selection signal) is given to the audio signal processing device 15. In the audio signal processing device 15, the radio 11 is selected by the source selection unit 15d in accordance with the front seat source selection signal, and the radio 11 and the audio signal processing unit 15a are connected.

  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), a down button (Seek Down / Track (Chapter) Down), a playback button (Play), a pause (Pause), and a stop button (Stop). Depending on the operation button, one of the sound sources is selected and played back.

  Here, the radio 11, CD12, Tape13, and AUX14 are turned on / off by Power, and any of the radio 11, CD12, Tape13, and AUX14 is selected depending on the mode. Then, the tape 13 is fast-forwarded and rewinded by REW and FF, respectively, and the track number and the like of the CD 12 are increased and decreased by the Seek Up / Track (Chapter) Up and the Seek Down / Track (Chapter) Down. A search for numbers and the like is performed. Also, playback, pause, and stop of the CD 12 or Tape 13 are performed by Play, Pause, and Stop, respectively.

  When the driver tunes the radio 11 by the operation unit 22 and selects a desired channel (a preset channel may be selected by a preset button), an output signal from the radio 11 is sent via the source selection unit 15d. After being given to the audio signal processing unit 15 a and subjected to signal processing, it is output from the speaker 23 via the amplifier 16. The various operation buttons described above are displayed on the screen of the front seat display unit 21, and the above-described operations may be performed by touching the various operation buttons on the front seat display unit 21. You may make it display the operation state by the operation part 22 on the display part 21. FIG.

  FIG. 2 is a diagram showing an example of the button arrangement of the rear seat remote controller 25. The rear seat remote controller 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. By operating these various operation buttons, as described later, Operations such as playback and stop are performed.

  The channel preset / discs 40 to 45 are used when presetting the channel of the radio 11 and also when presetting the disc of the CD12. In FIG. 2, the numbers “1” to “6” are assigned to the channel preset / discs 40 to 45, respectively, and the channel or disk number is specified by these numbers.

  Here, if the occupant in the rear seat turns on Power 31 with the rear seat remote controller 25 and selects CD12 by Mode 32, a remote control signal indicating that CD12 has been selected from the rear seat remote controller 25 is received by the remote controller light receiving unit 20. , Converted into 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 headphones 24) recognizes that the CD 12 has been selected, and the remote control selection signal (second acoustic selection signal) indicating that the CD 12 has been selected. Is given to the audio signal processing device 15. 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.

  In response to the remote control selection signal, the audio signal processing device 15 accesses the audio memory 17 and reads audio information (audio message) from the audio memory 17. FIG. 3 is a diagram showing an example of audio information stored in the audio memory 17. The audio memory 17 stores audio information corresponding to the various operation buttons of the rear seat remote controller 25 described above. In FIG. 3, rows indicate acoustic sources, and columns indicate various operation buttons of the rear seat remote controller 25. When the CD 12 is selected by the rear seat remote controller 25 as described above, the audio signal processing device 15 reads audio information indicating Mode = “CD” from the audio memory 17 in FIG. 3 and supplies the audio information to the mixer 15e. .

  In this state, since the CD 12 has not been reproduced yet, no output signal is transmitted from the CD 12, and audio information indicating Mode = “CD” is given to the audio signal processing unit 15c, where the audio processing is performed. Then, the signal is sent to the rear seat headphones 24 by the modulation transmission means 19. Then, the audio information “CD” is transmitted from the rear seat headphones 24, and the rear seat passenger wearing the rear seat headphones 24 knows that the CD has been selected.

  Thereafter, when the rear-seat occupant 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 is subjected to signal processing (for example, audio) The signal processor 15b performs a process of reducing 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 has been selected is given from the microcontroller 18 to the audio signal processing device 15, and the audio signal processing device 15 reads audio information indicating CD = Play from the audio memory 17. To 15e. Then, the CD output signal and the audio information are mixed by the mixer 15e, processed by the audio signal processing unit 15c, and then sent to the rear seat headphone 24 by the modulation transmission means 19. Then, audio information “Play” is transmitted from the rear seat headphones 24 together with the CD output signal, and the rear seat passenger wearing the rear seat headphones 24 knows that the CD has been reproduced.

  In this way, each time the rear seat occupant operates the rear seat remote controller 25, the remote control selection signal is given to the audio signal processing device 15, and the audio signal processing device 15 uses the audio corresponding to the operation button indicated by the remote control selection signal. Information is read from the audio memory 17 and given to the rear-seat headphones 24. For example, when Track Up is performed by the rear seat remote controller 25, audio information indicating “Track Up” is transmitted to the rear seat headphones 24.

  In this way, since the audio 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 accurately know his / her own operation content, and can select and operate the sound source. Can be performed very easily.

  In the example shown in FIG. 1, the audio signal processing device 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 occupant operates the rear seat remote controller 25 has been described. However, the remote controller 25 may be performed by an occupant other than the driver who wears the headphone device 24. Instead of the headphone device 24, another speaker may be provided to output audio information and the like from this speaker.

  Furthermore, in the above-described example, the example in which the headphone device 24 is wirelessly connected to the audio signal processing device 15 by the modulation transmission unit 19 has been described. However, as shown in FIG. In addition, the headphone device 24 may be connected to the connector 19b by connecting the audio signal processing unit 15c and the amplifier 19a.

  FIG. 5 is a view showing another example of the vehicle-mounted acoustic device 10 according to the present invention. In FIG. In the illustrated example, a source selection unit 52 is connected to the audio signal processing device 51, and the radio 11, CD 12, Tape 13, and audio memory 17 are connected to the source selection unit 52. The microcontroller 18 controls the source selection unit 52 based on the aforementioned front seat selection signal or remote control selection signal, and selectively connects the sound source to the audio signal processing device 51.

  Further, the microcontroller 18 accesses the audio memory 17 in response to the remote control selection signal, and supplies audio information corresponding to the operation button operated by the rear seat remote control 25 to the audio signal processing device 51 via the source selection unit 52. . As described with reference to FIG. 1, the audio signal processing device 51 has a first processing line connected to the speaker 23 and a second processing line connected to the rear seat headphone 24. The sound source specified by the selection signal is connected to the first processing line by the source selection unit 52, the sound source selected by the remote control selection signal is connected to the second processing line by the source selection unit 52, and an audio memory 17 is connected to the second processing line. Then, as described with reference to FIG. 1, the audio information read from the audio memory 17 in accordance with the operation of the remote control button is output to the rear seat headphones 24.

  In the example shown in FIG. 5, the microcontroller 18 and the source selection unit 52 collectively function as a selection control unit and an information reading unit.

  As described above, according to the first embodiment, the microcontroller and / or the audio signal processing device selects and operates one of the acoustic sources in accordance with the remote control acoustic selection signal for selecting and operating the acoustic source by the remote controller 25. Since the audio memory 17 is accessed to read out the audio information and applied to the headphone device 24, the occupant who listens to the sound output from the headphone device 24 can easily perceive the selection operation of the acoustic source by the audio information. The sound source can be selected very easily.

  According to the first embodiment, the operation unit 22 that outputs the front seat acoustic selection signal is provided, and the voice signal processing device, the microcontroller, and the voice memory are arranged on the front seat side of the vehicle as a front panel, Since the remote control sound selection signal is received on the front panel side by operation, the passenger wearing the headphone device can easily perceive the operation status of the sound source even if the front panel is not visible There is.

It is a block diagram which shows an example of the vehicle-mounted audio apparatus by Embodiment 1 of this invention. It is a figure which shows an example of the operation button arrangement | sequence of the remote control shown in FIG. It is a figure which shows an example of the audio | voice information memorize | stored in the audio | voice memory shown in FIG. It is a block diagram which shows the other example of the vehicle-mounted audio apparatus by Embodiment 1 of this invention. It is a block diagram which shows the further another example of the vehicle-mounted audio apparatus by Embodiment 1 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 In-vehicle acoustic apparatus, 10a Front seat unit, 11 Radio, 12 Compact disc apparatus (CD), 13 Cassette tape reproducing apparatus (Tape), 14 Auxiliary apparatus (AUX), 15 Audio signal processing apparatus, 15a-15c Audio signal processing part , 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 Part, 23 speaker (first sound output part), 24 headphone device (rear seat headphone: second sound output part), 25 remote control (rear seat remote control), 31 Power, 32 Mode, 33 Rew, 34 FF, 35 Seek Up / Track (Chapter) Up, 6 Seek Down / 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.

Claims (3)

A plurality of acoustic sources that output different acoustic signals;
First and second sound output units for outputting sound output from the sound source;
An acoustic source that selects and outputs one of the acoustic sources according to a first acoustic selection signal for selecting and operating an acoustic source to be output to the first acoustic output unit. Selection control means for selecting and operating one of the acoustic sources in response to a second acoustic selection signal for selecting and operating
Storage means storing voice information indicating a selection operation according to the second acoustic selection signal;
An on-vehicle acoustic device comprising: information reading means that accesses the storage means in response to the second acoustic selection signal, reads the voice information, and gives the information to the second acoustic output unit. The operation means for outputting the first sound selection signal, the selection control means, the storage means, and the information reading means are arranged on the front seat side of the vehicle as a front seat unit,
The in-vehicle acoustic device according to claim 1, further comprising a remote controller that outputs a second acoustic selection signal.   The in-vehicle acoustic device according to claim 2, wherein the remote controller is associated with a headphone device as a second acoustic output unit.

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