JP4090682B2 - In-vehicle acoustic system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-vehicle audio system, and in particular, entertainment such as audio information such as a CD changer (CDC) and a radio tuner, and video information such as a television (TV) and DVD for a rear seat (rear seat) user. The present invention relates to a processing technique related to handling when an audio / video source currently operating is interrupted from another audio / video source in an in-vehicle audio system including a rear seat audio system.
[0002]
In the following description, sources other than the CDC, TV, etc. that can output audio / video information in the same manner (communication devices such as telephones, navigation units, voice recognition units, etc.) are also referred to as “acoustic units” for convenience. Called.
[0003]
[Prior art]
In a conventional in-vehicle acoustic system, a rear seat acoustic system (also referred to as a rear seat entertainment system (RES)) is used by a user on the rear seat to receive an audio unit (audio / audio). Operation unit for selecting (video source) and adjusting the volume, headphones for listening to audio sound according to the audio signal output from the selected source, and also according to the video signal output from the source A display for displaying the information is provided.
[0004]
The user at the rear seat operates the operation unit to instruct to select which source audio / video information is to be output to the headphones / display, or to the source related to the audio / video information output to the headphones / display. By giving operation instructions (seek up / down, volume adjustment, etc.), the operating state of the source changed based on the instructions is heard through the headphones and displayed through the display.
[0005]
Also, the front seat acoustic system is equipped with the same equipment as RES, and differs only in that a speaker is provided instead of headphones. Similarly to RES, the operating state of the sound unit (audio / video source) to which the operation instruction is given from the operation unit is received through the speaker and displayed through the display.
[0006]
In such a conventional on-vehicle acoustic system, when there is an interrupt process from another source (referred to as “source B”) to the currently operating source (referred to as “source A”), a typical countermeasure is provided. First, the source A audio / video information is muted to switch to the source B audio / video information, and after the interruption process from the source B is completed, the process is switched to the original source A audio / video information. Has been done.
[0007]
This processing form is further roughly divided into two forms. One is a process for stopping or temporarily suspending the operation of the source A during the interruption process from the source B, and the other is the source. Even when there is an interrupt process from B, the operation of source A is continued as it is.
In the following description, for the sake of convenience, the former processing mode is referred to as “STOP / PAUSE processing mode”, and the latter processing mode is referred to as “PLAY processing mode”.
[0008]
[Problems to be solved by the invention]
The two processing modes (STOP / PAUSE processing mode and PLAY processing mode) performed during the interrupt processing described above have the following problems.
First, in the case of the STOP / PAUSE processing mode, when source A is shared by two or more users, interrupt processing from source B is performed for users who are not involved in source B (source on the interrupt processing side). There is an inconvenience that the source A cannot be used until it is finished. Hereinafter, a specific example will be described.
[0009]
Now, source A is a cassette tape deck under the operation unit for the front seat (also referred to as a head unit (HU)), and source B is a navigation unit (voice guidance).
Before interruption processing from the source B occurs, the user at the front seat listens to the operating state of the source A (cassette tape deck) via the speaker, and the user at the rear seat listens to the same source A via the headphones. Listen to the operating status.
[0010]
In this state, when interruption processing (voice guidance by the navigation unit) from the source B occurs, the operation of the source A is stopped or paused because the speaker is used to provide voice guidance.
For this reason, the user at the rear seat who used the source A cannot use the source A until the voice guidance by the navigation unit for the user at the front seat is completed.
[0011]
On the other hand, in the PLAY processing mode, there is an advantage that even if the source A is shared by two or more users, there is no influence on users who are not involved in the source A (interrupted source).
However, even when Source A is used by one user, the operation of Source A (tape playback) continues while interrupt processing from Source B (voice guidance by the navigation unit) is performed. Therefore, there is an inconvenience that other users cannot use the source A during the interruption period.
[0012]
As described above, in both cases of the STOP / PAUSE processing mode and the PLAY processing mode, when a plurality of users use a plurality of sources incorporated in the system, there are sources that cannot be used in some cases and are used. There is a problem that the convenience of the user is impaired.
In addition, when the source A is used by one user in the PLAY processing mode, even if an interrupt processing from the source B occurs, the fact is not known to other users. , There is also a disadvantage that the user feels uncomfortable that the source A cannot be used.
[0013]
The present invention was created in view of the above-described problems in the related art, and when a plurality of users use a plurality of sources, the user-friendliness can be improved without giving the user a sense of incongruity. It is an object to provide an acoustic system for use.
[0014]
[Means for Solving the Problems]
In order to solve the above-described problems of the prior art, according to the present invention, a plurality of acoustic units each capable of independently outputting audio / video information and any one of the plurality of acoustic units from a front seat in a passenger compartment. A first operating means for instructing the operation of the sound, a second operating means for instructing one of the plurality of sound units from a rear seat in the vehicle interior, and the first and second operating means. Information output means for outputting audio / video information relating to the operating state of the acoustic unit to which an operation instruction is given, and the first operating means operates any one of the plurality of acoustic units. An operation unit having a key, a user who gives an operation instruction to the sound unit by operating the operation key, and data indicating an operation state when the operation instruction of the sound unit is given; The user identification information storage means for storing the associated information and the user identification information when there is an interruption process from another second acoustic unit for the first acoustic unit currently operating A controller that refers to the information stored in the storage means and determines whether the first acoustic unit is used by one user or shared by two or more users; and When it is determined that the first acoustic unit is being used by one user, a process for stopping or temporarily stopping the operation of the first acoustic unit is performed during the interrupt process. When it is determined that the first acoustic unit is shared by two or more users, the first acoustic unit is used during the interruption process. Vehicle audio system and performs a process to continue the operation is provided.
[0015]
According to the vehicle-mounted acoustic system according to the present invention, when there is an interrupt process from another second source (acoustic unit) to the first source (acoustic unit) that is currently operating, The processing mode at the time of interruption is changed based on the result of determining whether the source is used by one user or shared by two or more users.
[0016]
In other words, when it is used by one user, the processing of the first source is stopped or paused (STOP / PAUSE processing mode processing) and shared by two or more users Performs a process for continuing the operation of the first source (a process in the PLAY process mode).
As a result, when one user is using the source A as in the past, the inconvenience as seen when the PLAY processing mode was performed (other users used the source A during the interruption period). Inconvenience that it cannot be used) and inconveniences seen when processing in STOP / PAUSE processing mode when source A is shared by two or more users (source until interrupt processing is completed) Inconvenience that A cannot be used does not occur.
[0017]
As a result, when a plurality of users use a plurality of sources, it is possible to improve user convenience without giving the user a sense of incongruity.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a block diagram showing a schematic configuration of an in-vehicle acoustic system according to an embodiment of the present invention.
The on-vehicle acoustic system according to the present embodiment includes a front seat operation unit (HU) 1 and a rear seat operation unit 2 for instructing various sources (acoustic units) from a front seat and a rear seat, respectively. These operation units are connected through a bus 3 such as an optical fiber provided as a transmission line. A speaker 4 and a display 5 are connected to the front seat operation unit 1, and a headphone 6 and a display 7 are connected to the rear seat operation unit 2. In the illustrated example, for simplicity of explanation, only one speaker 4 is connected to the front seat operation unit 1, but in reality, two or four speakers 4 are installed at predetermined positions in the vehicle interior. Has been. Similarly, in the rear seat operation unit 2, actually, two headphones 6 and two displays 7 are respectively installed at predetermined positions on the left and right sides of the rear seat.
[0019]
Various sources (acoustic units) include a radio tuner 31, a cassette tape deck 32, a CDC 33, an amplifier unit (AMP) 34, a navigation unit 35, a voice recognition unit 36, a communication device (telephone etc.) 37, a TV 38 and an extra. A unit (DVD, game machine, etc.) 39 is included. Of these, the sources 31 to 37 are connected to the bus 3, the TV 38 is connected to the front seat operation unit 1, and the extra unit 39 is connected to the rear seat operation unit 2.
[0020]
In the in-vehicle acoustic system of the present embodiment, the rear seat operation unit 2, the headphones 6, the display 7, and the extra unit 39 constitute a rear seat acoustic system (rear seat entertainment system) RES.
The front seat operation unit 1 is used by a user on the front side of the passenger compartment, such as a driver or passenger in a passenger seat, to perform operations such as selection of each source, volume and sound quality adjustment, etc. It is installed at a predetermined position on the side. The front seat operation unit 1 selects one of the sources such as the CDC 33 according to an operation instruction given by the user, and receives audio / video data output from the selected source via the bus 3. Then, based on the received data, an analog audio signal is output to the speaker 4, and an analog video signal is output to the display 5. Thereby, the user on the front side can listen to the audio sound corresponding to the audio signal output from the speaker 4 and can view the information corresponding to the video signal displayed on the screen of the display 5. The configuration of the front seat operation unit 1 will be described later.
[0021]
The rear seat operation unit 2 is used by a user in the rear seat of the vehicle interior to perform operations such as selecting each source and adjusting the volume and sound quality, and is installed at a predetermined position on the rear side of the vehicle interior. Has been. As with the front seat operation unit 1, the rear seat operation unit 2 selects one of the sources such as the CDC 33 in accordance with an operation instruction given by the user, and outputs audio from the selected source. / Video data is received via the bus 3 and an analog audio signal is output to the headphones 6 and an analog video signal is output to the display 7 based on the received data. As a result, the rear user can listen to the audio sound corresponding to the audio signal output from the headphones 6 and view the information corresponding to the video signal displayed on the screen of the display 7. The configuration of the rear seat operation unit 2 will be described later.
[0022]
As a basic operation, each of the sources 31 to 39 receives data related to operation instructions given from the operation units 1 and 2 via the bus 3, and changes the operation state of the self source based on the received data. The data indicating the changed result (current operation state) is transmitted as an audio / video signal to the operation units 1 and 2 that output the operation instruction via the bus 3.
[0023]
For example, in the case of the radio tuner 31, in response to an operation instruction given from each of the operation units 1 and 2, an audio signal is generated by receiving and demodulating an FM broadcast or AM broadcast signal, and this is converted into a digital audio signal. The data is converted into data and transmitted to the operation units 1 and 2 that output the operation instruction via the bus 3. In the case of the CDC 33, a plurality of CDs are loaded, and in response to an operation instruction given from each of the operation units 1 and 2, the signal recorded on the recording surface of the CD selected by the user is read and reproduced. The transmitted audio data is transmitted to the operation units 1 and 2 that output the operation instruction via the bus 3.
[0024]
The front seat operation unit 1 includes an operation unit 11, a communication control unit 12, an operation unit-specific information storage unit 13, a control unit 14, a display unit 15, an audio output unit 16, a video output unit 17, and a user-specific information storage unit 18. It is prepared for.
The operation unit 11 is used by a user in the front seat to input various operation instructions, and includes various operation keys such as a power key and numeric keys.
[0025]
The communication control unit 12 converts various data output from the control unit 14 into a predetermined communication format, and transmits the data to the rear seat operation unit 2 and each source (radio tuner 31, CDC 33, etc.) via the bus 3. To do. The communication control unit 12 receives various data transmitted from the rear seat operation unit 2 and each source via the bus 3, performs predetermined demodulation processing on these data, and then performs the control unit 14. , Output to the audio output unit 16 or the video output unit 17.
[0026]
The operation unit-specific information storage unit 13 indicates the acquisition state of the audio / video information when the front seat operation unit 1 is instructed to turn off the power and the output operation of the audio / video signal is stopped. Data shown (for convenience, referred to as “acquisition state data”) is stored. This acquired state data is stored for reference when necessary at the next power-on.
[0027]
As this acquisition state data, for example, “unit type” indicating which source (acoustic unit) was used in each source (radio tuner 31, CDC 33, etc.); “Volume / sound quality” that indicates an adjustment value of sound volume and sound quality when listening to the sound, “detailed information by unit” that indicates a detailed acquisition state for each acoustic unit, and the like are considered. As specific contents of the detailed information for each unit, for example, if the radio tuner 31 is used, the type of FM / AM, information on the broadcast station (reception frequency), etc. used the CDC 33. In some cases, the disc number indicating which CD was being played among a plurality of loaded CDs, and the playback position indicating how much time has passed since the beginning of what song was played. Information etc. are stored.
[0028]
The control unit 14 controls the entire front seat operation unit 1. Specifically, in response to an operation instruction given from the user at the front seat via the operation unit 11, the control unit 14 acquires audio / video data from each source and reproduces audio / video information. Control is performed such as an operation for displaying information instructing the operation, operation status, and the like on the display unit 15, an operation for storing acquired data, and a reading operation.
[0029]
Based on the data output from the control unit 14, the display unit 15 displays various information, for example, the reception frequency at the time of FM / AM broadcast reception for the radio tuner 31, the disc number and playback position at the CD performance for the CDC 33. (Number of tracks, elapsed time, etc.) are displayed.
The audio output unit 16 receives audio data output from the selected source from the communication control unit 12 via the bus 3, converts this data into an analog audio signal, and outputs the analog audio signal to the speaker 4. The audio output unit 16 controls the volume and sound quality in accordance with instructions given from the control unit 14.
[0030]
Similarly, the video output unit 17 receives video data output from the selected source from the communication control unit 12 via the bus 3, converts this data into an analog video signal, and outputs the analog video signal to the display 5. In addition, the video output unit 17 performs control related to display of video information in accordance with an instruction given from the control unit 14.
The user-specific information storage unit 18 registers information (user ID) for identifying a user who operates each of the operation units 1 and 2, and uses this user ID and one of the operation units 1 and 2 for audio. / Acquisition state data at the time of obtaining video information is stored as user-specific information in a one-to-one correspondence.
[0031]
This user-specific information is stored in correspondence with the user who operates the front seat operation unit 1, and data corresponding to the user who operates the rear seat operation unit 2 is also received via the bus 3. The information is transmitted to the seat operation unit 1 and stored in the user-specific information storage unit 18.
On the other hand, the rear seat operation unit 2 is also basically configured in the same manner as the front seat operation unit 1 (operation unit 21, communication control unit 22, operation unit-specific information storage unit 23, control unit 24, display unit). 25, the audio output unit 26 and the video output unit 27), and the only difference is that there is no unit corresponding to the above-described user-specific information storage unit 18.
[0032]
FIG. 2 schematically shows the external configuration of the rear seat operation unit 2 in this system in the form of a plan view.
As shown in the figure, a display unit 25 is arranged on the upper side of the housing, and an operation unit 21 having various operation keys is arranged thereunder. As the display unit 25, for example, a 14 segment / 17 bit liquid crystal display (LCD) is used. In addition, the operation unit 21 is provided with a numeric key 21a, a source selection key 21b, power keys 21c and 21d, and a shift key 21e.
[0033]
Each time the source selection key 21b is operated (pressed) one by one, each sound unit (audio source / video source) included in the system is sequentially selected according to a predetermined order. At this time, information related to the selected source is displayed on the display unit 25. The power keys 21c and 21d are used by the users on the left and right sides of the rear seat to perform power on / off (ON / OFF) and volume adjustment (VOL.), Respectively. For the shift key 21e, operations such as an FF / REW operation and a seek up / down operation are instructed by operating a portion with each arrow.
[0034]
Furthermore, jacks 210a and 210b provided as output terminals of the audio output unit 26 are provided at the lower left and lower right of the unit surface, respectively. Users on the left and right rear seats can listen to the audio sound by connecting the headphones 6 to the jacks 210a and 210b, respectively. A jack 220 for an extra unit (DVD, game machine, etc.) 39 is provided between the left and right jacks 210a and 210b.
[0035]
The front seat operation unit 1 also basically has the same external configuration as the rear seat operation unit 2. However, in the case of the front seat operation unit 1, the jacks 210a, 210b for the headphones 6 and the jack 220 for the extra unit 39 are omitted, and only one power key 21c, 21d is provided.
[0036]
In the in-vehicle acoustic system according to this embodiment, the sources 31 to 39 are “acoustic units”, the front seat operation unit 1 is “first operation means”, and the rear seat operation unit 2 is “second operation”. In the “means”, the speaker 4, the display 5, the headphones 6 and the display 7 correspond to “information output means”, and the user-specific information storage unit 18 corresponds to “user-specific information storage means”.
[0037]
In the in-vehicle acoustic system according to the present embodiment, as will be described later, the control unit 14 in the front seat operation unit (HU) 1 has another source (source B) with respect to the currently operating source (source A). When there is an interrupt process from, the information stored in the user-specific information storage unit 18 is referred to and whether the source A is used by one user or shared by two or more users When the source A is used by one user based on the determination result, the STOP / PAUSE processing mode is performed, and the source A is shared by two or more users Is characterized in that processing in the PLAY processing mode is performed.
[0038]
Hereinafter, the operation performed by the in-vehicle acoustic system of the present embodiment will be described with reference to FIGS. 3 to 5 showing state transitions related to the operation.
FIG. 3 shows an example of processing when the source A is used by one user, that is, processing in the STOP / PAUSE processing mode.
First, the source A is the cassette tape deck 32 under the front-seat operation unit (HU) 1, and the source B is the navigation unit 35 (voice guidance).
[0039]
Before interruption processing from the source B occurs, the user at the front seat listens to the operating state of the source A (cassette tape deck 32) from the speaker 4 via the AMP 34.
In this state, when interrupt processing from the source B (voice guidance by the navigation unit 35) occurs, as described above, the control unit 14 in the HU 1 determines whether the source A is used by one user or two or more users. Is shared by other users. In this case, since it corresponds to the former, processing in the STOP / PAUSE processing mode is performed.
[0040]
That is, the operation of the source A (tape playback) is paused (paused), and the navigation unit 35 is permitted to be interrupted. On the other hand, voice guidance (voice output) by the navigation unit 35 is provided from the speaker 4 via the AMP 34.
When the interrupt processing from the source B is completed, the HU 1 (control unit 14) releases the pause (pause) of the operation of the source A (tape playback) and starts the tape playback (speaker via the AMP 34). Re-output from 4).
[0041]
FIG. 4 shows an example of processing when the source A is shared by two or more users, that is, processing in the PLAY processing mode.
Similarly, the source A is a cassette tape deck 32 under the front seat operation unit (HU) 1 and the source B is a navigation unit 35 (voice guidance).
[0042]
Before interruption processing from the source B occurs, the user at the front seat listens to the operating state of the source A (cassette tape deck 32) from the speaker 4 via the AMP 34, and the user at the rear seat (RES2) 6 is listening to the operating state of the same source A.
In this state, when interrupt processing from the source B (voice guidance by the navigation unit 35) occurs, as described above, the control unit 14 in the HU 1 determines whether the source A is used by one user or two or more users. Is shared by other users. In this case, since it corresponds to the latter, processing in the PLAY processing mode is performed.
[0043]
That is, the operation of the source A (tape reproduction) is not paused (pause), and the navigation unit 35 is permitted to be interrupted. On the other hand, voice guidance (voice output) by the navigation unit 35 is provided from the speaker 4 via the AMP 34.
When the interrupt processing from the source B is completed, the HU 1 (control unit 14) releases the pause (pause) of the operation of the source A (tape playback) and starts the tape playback (speaker via the AMP 34). Re-output from 4).
[0044]
FIG. 5 shows a process when the source A is changed from being used by one user to a state shared by two or more users, that is, at the time of transition from the STOP / PAUSE processing mode to the PLAY processing mode. An example of processing is shown.
First, the source A is the cassette tape deck 32 under the front seat operation unit (HU) 1, the source B is the hands-free telephone 37, and the source C is the CDC 33.
[0045]
Before interruption processing from the source B occurs, the user at the front seat listens to the operating state of the source A (cassette tape deck 32) from the speaker 4 via the AMP 34, and the user at the rear seat (RES2) 6 is listening to the operating state of the source C (CDC33).
In this state, when an interruption process from the source B (call by the telephone 37) occurs, as described above, the control unit 14 in the HU 1 determines whether the source A is used by one user or two or more users. To determine if it is shared. At this time, since it corresponds to the former, processing in the STOP / PAUSE processing mode is performed.
[0046]
That is, the operation of the source A (tape reproduction) is paused (paused), and the telephone set 37 is permitted to be interrupted. On the other hand, a telephone call (voice output) by the telephone 37 is provided from the speaker 4 via the AMP 34.
In this state, it is assumed that the rear seat user (RES2) requests the HU1 to change from the source C (CDC33) currently being listened to the source A (cassette tape deck 32). At this time, the state in which the source A is used by one user shifts to a state shared by two or more users.
[0047]
In response to this, the control unit 14 in the HU 1 performs the determination process described above, and performs the process of the PLAY process mode based on the result.
That is, the HU1 (control unit 14) releases the pause (pause) of the operation of the source A (tape playback) and causes the RES2 to start tape playback. As a result, the rear seat user (RES2) can listen to the operating state of the source A (cassette tape deck 32) via the headphones 6.
[0048]
When the interrupt process is completed, the HU 1 (control unit 14) causes the speaker 4 to start re-output of the tape via the AMP 34.
As described above, according to the on-vehicle acoustic system according to the present embodiment, when there is an interrupt process from another source B to the currently operating source A, the source A is set by one user. The subsequent processing mode is changed based on the result of determining whether it is used or shared by two or more users.
[0049]
That is, when used by one user, during the period when the interrupt process from the source B is being performed, the process of stopping or temporarily suspending the operation of the source A (the process in the STOP / PAUSE process mode) Is going. On the other hand, when shared by two or more users, the process of continuing the operation of the source A (the process in the PLAY process mode) is performed during the period when the interrupt process from the source B is performed.
[0050]
As a result, when one user is using the source A as in the past, the inconvenience as seen when the PLAY processing mode was performed (other users used the source A during the interruption period). Inconvenience that it cannot be used) and inconveniences seen when processing in STOP / PAUSE processing mode when source A is shared by two or more users (source until interrupt processing is completed) The inconvenience that A cannot be used can be eliminated. As a result, when a plurality of users use a plurality of sources, it is possible to improve user convenience without giving the user a sense of incongruity.
[0051]
In the above-described embodiment, the description has been given of the case where the rear seat operation unit 2 is arranged at a predetermined position in the vehicle interior so that the users riding on the left and right sides of the rear seat can operate in common. Of course, the arrangement of the rear seat operation unit 2 is not limited to this. For example, it may be arranged in two predetermined locations in the passenger compartment so that users who are on the left and right sides of the rear seat can operate separately. In this case, only one power key 21c, 21d (see FIG. 2) is provided.
[0052]
In each of the above-described embodiments, the case where the audio / video signal is converted into digital data and transmitted from each source to each operation unit 1 and 2 via the bus 3 has been described. However, the transmission form is not limited to this. Of course. For example, an analog line different from the bus 3 may be used to directly transmit to the audio output unit and the video output unit (video switching unit) in each of the operation units 1 and 2. In this way, the analog line for sending audio / video signals and the bus 3 for sending control signals between the operation units 1 and 2 and the sources are separated from each other, thereby using a bus with a small communication capacity. Even if it exists, the vehicle-mounted acoustic system which concerns on this invention can be constructed | assembled.
[0053]
【The invention's effect】
As described above, according to the present invention, when there is an interrupt process for a currently operating source, the source is used by one user or shared by two or more users. By changing the subsequent processing mode based on the determination result, it is possible to improve user convenience without giving the user a sense of discomfort when a plurality of users use a plurality of sources.
[Brief description of the drawings]
FIG. 1 is a block diagram schematically showing a configuration of an in-vehicle acoustic system according to an embodiment of the present invention.
2 is a plan view schematically showing an external configuration of a rear seat operation unit in the system of FIG. 1; FIG.
FIG. 3 is a state transition flowchart showing an example of processing in a STOP / PAUSE processing mode performed by the in-vehicle acoustic system of FIG. 1;
4 is a state transition flowchart showing an example of processing in a PLAY processing mode performed by the in-vehicle acoustic system of FIG. 1. FIG.
FIG. 5 is a state transition flowchart showing an example of processing at the time of transition from the STOP / PAUSE processing mode to the PLAY processing mode performed by the in-vehicle acoustic system of FIG. 1;
[Explanation of symbols]
1 ... Front seat operation unit (first operation means)
2 ... Rear seat operation unit (second operation means)
3 ... Bus (transmission path)
4. Speaker (information output means)
5. Display (information output means)
6. Headphone (information output means)
7. Display (information output means)
11, 21 ... operation unit
14, 24 ... control unit
18 ... User-specific information storage unit (user-specific information storage means)
31-39 ... Audio / video source (acoustic unit)
RES ... Rear seat entertainment system (rear seat sound system)

Claims (2)

A plurality of sound units each capable of independently outputting audio / video information;
First operating means for giving an operation instruction to any one of the plurality of sound units from a front seat in a vehicle interior;
A second operation means for giving an operation instruction to any of the plurality of acoustic units from a rear seat in the vehicle interior;
Information output means for outputting audio / video information relating to the operating state of the sound unit to which the operation instructions from the first and second operation means are given,
The first operating means comprises:
An operation unit including an operation key for operating any one of the plurality of acoustic units;
A user for storing information associating a user who gives an operation instruction to the sound unit by operating the operation key and data indicating an operation state at the time when the operation instruction of the sound unit is given Specific information storage means;
When there is an interrupt process from another second acoustic unit for the first acoustic unit that is currently operating, referring to the information stored in the user specifying information storage means, A control unit for determining whether the sound unit is used by one user or shared by two or more users;
When it is determined that the first acoustic unit is being used by one user, a process of stopping or temporarily stopping the operation of the first acoustic unit during the interrupt process is performed. Done
When it is determined that the first acoustic unit is shared by two or more users, a process for continuing the operation of the first acoustic unit is performed during the interruption process. In-vehicle acoustic system characterized by The information output means includes
A speaker and a display for providing audio information and video information relating to an operating state of the acoustic unit to which an operation instruction is given from the first operation means;
The in-vehicle apparatus according to claim 1, further comprising: a headphone and a display that provide audio information and video information related to an operating state of the acoustic unit to which an operation instruction is given from the second operation unit. Acoustic system.

Images