JPH0793957A - Vehicle-mounted audio apparatus - Google Patents

Abstract

PURPOSE:To display a label even when one recording medium is played by any of a plurality of playing devices as long as the label is set once on the recording medium. CONSTITUTION:While a disk G is being played by a CD changer-player unit 26A, a label is input by a tuner/cassette unit 8. Then, label character data is sent out to the unit 26A is a common bus 30, and it is stored in a memory 27 by a microcomputer 25A so as to correspond to data (on a last music No. and the final absolute playing time) which specifies the disk G. After that, when the disk G is loaded on a CD player unit 17, a microcomputer 16A retrieves a memory 18 by using specific data on the disk G before a playing operation is started. When the label character data does not exist, a retrieval request which includes disc-specific data is given to the unit 26A via the common bus 30. The microcomputer 25A which has received the retrieval request retrieves the memory 27 by using the disk-specific data. Since the corresponding label character data exists, the data is sent out to the unit 8 via the common bus 30, and a label is displayed on a display part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle audio device, and in particular, label data set by a user for each recording medium of a music signal is registered in advance, and when the recording medium is played,
The present invention relates to a vehicle-mounted audio device capable of identifying a recording medium by displaying a corresponding label.

[0002]

2. Description of the Related Art In a CD player in which compact discs are replaced one by one and loaded, the compact discs are rotated and played. Therefore, the label printed on the surface of the compact discs cannot be seen during the performance. I can't confirm which compact disc is playing. In a CD changer player, a large number of compact discs are put in a magazine in advance and set in a player unit, and one compact disc selected from the large number of discs is rotated and played. , You cannot see the label printed on the surface of the compact disc during performance. Therefore, every time a new compact disc is played, the user sets an arbitrary label for each compact disc.
There has been proposed a device in which a preset label is automatically displayed when the same compact disc is played, so that it can be seen at a glance which compact disc is being played.

Specifically, when a user plays a new compact disc for the first time, the user inputs a label character having an arbitrary number of characters, such as a title name, artist name, etc., with a maximum of about 8 characters by operating a key and operating the system microcomputer. Data read out from the compact disc in advance, for example, the maximum song number and the last absolute performance time (final A-time) in the TOC information are disc specific data,
The disc specific data and the label data are associated with each other and stored in a nonvolatile read / write label memory such as a battery-backed SRAM or EEPROM. If a different label is input each time a new compact disc is played, disc-specific data and label data are associated with each disc and stored in the label memory. After that, when the compact disc whose label has already been input is replayed, the system microcomputer uses the disc specific data consisting of the maximum song number and the last absolute playing time in the TOC information read from the compact disc as a search key to the label memory. By searching, if the same disc specific data exists, if it exists, the corresponding label data is read and the label is displayed on the display section, so the user can confirm the title name, artist name, etc. of the compact disc being played at a glance. can do.

By the way, FIG. 9 shows a car audio system.
As shown in, the tuner 1, the tape reproducing section 2, the operation section 3,
A display unit 4, a changeover switch 5, a communication interface 6, a tuner / cassette unit 8 having a system microcomputer 7, a CD reproducing unit 11, a disc loading detecting unit 12,
CD changer player unit 26 having a loading unit 13, an operation unit 14, a communication interface 15, a system microcomputer 16, a CD player unit 17, a magazine 21, a CD reproducing unit 22, a disc exchange unit 23, a communication interface 24, and a system microcomputer 25.
For example, one head / unit (tuner / cassette unit 8) to many slave units (CD player unit 17, CD changer player unit 2)
6) is often equipped, and in this case, each head unit is connected by a common bus (communication line) 30,
In general, the tuner / cassette unit 8 is provided with a function as a centralized controller for performing operations on all units including itself and displaying operation states.

When the tuner (tape) is selected by the operation unit 3, the system microcomputer 7 enters the tuner mode (tape mode), operates the tuner 1 (tape reproducing unit 2), and switches the selector switch 5 to the tuner position (tape). Position) to output the received audio signal (audio signal reproduced from the tape) to an amplifier (not shown). If the tape is being reproduced (tuner is being received) until then, the tape reproducing section 2 (tuner) When the operation of 1) is stopped and the compact disk is being played by the CD player unit 17, the STOP command is sent to the system microcomputer 16 via the communication interface 6, the common bus 30, and the communication interface 15, and the CD reproducing unit 11 Stop playing the CD changer player unit If a compact disc is being played at 6, it sends the STOP command to the system microcomputer 25 to stop the playing of the CD reproducing section 22.

When the user loads a compact disc into the CD player unit 17, the disc loading detector 12 detects the loading of the disc, and the system microcomputer 16 controls the loading unit 13 in response to the detection signal. The compact disc is set in the CD reproducing unit 11, and the disc loading signal is sent to the tuner / cassette unit 8 via the communication interface 15 and the common bus 30. Then, the CD reproducing unit 11 is caused to read the TOC information and store it in a built-in memory (not shown). And
Search the beginning of the first song and start playing. During the performance
The system microcomputer 16 reads music number data and performance elapsed time data (P-time) read from the compact disc.
Is periodically sent to the system microcomputer 7. When the system microcomputer 7 receives the disc loading signal, it enters the CD player mode, sets a disc loading flag in a non-volatile readable and writable memory (not shown), and switches the selector switch 5 to the CD player position.
The audio signal played by the player unit 17 is output to the amplifier. At this time, if the tuner 1 or the tape reproducing section 2 has been in operation until then, the operation is stopped, and if the compact disc is being played by the CD changer player unit 26, a STOP command is sent to reproduce the CD. Stop playing part 22. Then, the song number data being played from the CD player unit 17,
The display section 4 displays the music number and the elapsed performance time based on the elapsed performance time data. After that, when the eject operation is performed by the operation unit 14, the system microcomputer 16 stops the performance and the loading unit 13 unloads the compact disc. In addition, a disk eject signal is sent to the system microcomputer 7, and the system microcomputer 7 receiving the signal clears the disk loaded flag registered in the memory.

When the CD changer is selected by the operation unit 3, the system microcomputer 7 enters the CD changer mode, the changeover switch 5 is changed to the CD changer position, and the tuner 1 or the tape reproducing unit 2 is in operation. For example, stop the operation, CD player unit 1
If the compact disc is being played at 7, a STOP command is sent to stop the operation of the CD reproducing unit 11. And
A PLAY command is sent to the system microcomputer 25 of the CD changer player unit 26. The system microcomputer 25 receiving the PLAY command reads the TOC information in the built-in memory when the compact disc has already been set in the CD reproducing section 22 and stores it in the built-in memory to start the performance from the first music, and during the performance, the music number data and the performance progress. The time data is periodically sent to the system microcomputer 7, and the display section 4 displays the music number and the elapsed playing time. When the last piece of music on one compact disc is finished, a performance end signal is sent to the system microcomputer 7 and the disc exchanging unit 23 causes the compact disc to be exchanged with the next compact disc. Read in and store in the internal memory,
Start playing from the first song. As a result, a large number of compact discs are continuously played.

When a CD player is selected on the operation unit 3,
The system microcomputer 7 refers to the disc loaded flag to check whether the disc has been loaded in the CD player unit 17, and if YES, the CD player mode is entered, the changeover switch 5 is switched to the CD player position, and the tuner 1 or tape reproduction is performed until then. If the section 2 is in operation, the operation is stopped, and if the CD changer player unit 26 is playing, a STOP command is transmitted and C
The operation of the D reproduction unit 22 is stopped. Then, the PLAY command is sent to the system microcomputer 16 of the CD player unit 17. The system microcomputer 16 receiving the PLAY command causes the CD reproducing unit 11 to read the TOC information, and then 1
Start playing from the beginning of the song.

In the on-vehicle audio device shown in FIG. 9, it is possible to display the label of the compact disc being played.
Each of the D player unit 17 and the CD changer player unit 26 is provided with nonvolatile read / write label memories 18 and 27. When setting a label for a new compact disc loaded in the CD player unit 17 and playing, a label input mode is set by the operation unit 3 and desired label input is performed. Then, the system microcomputer 7 displays the label character on the display unit 4 (this label display is switched to another source by the operation unit 3, or the CD player unit 1
7), the label setting command including the label character data is sent to the system microcomputer 16 of the CD player unit 17. The system microcomputer 16 which has input the label setting command combines the label character data with the final track number data and the final absolute performance time data (final A-time) in the TOC information which has been read in advance from the compact disc being played. Label memory 1 in association with disc specific data
Store in 8. A new compact disc is loaded into the CD player unit 17, a different label is input each time the performance is performed, and a label character associated with the disc specific data that combines the final song number data and the final absolute playing time data of each compact disc The data is stored in the label memory 18.

After that, when a compact disc which has already been labeled is loaded into the CD player unit 17,
After setting in the CD playback section 11 and reading the TOC information,
It is searched whether the same disc specific data is stored in the label memory 18 by using the disc specific data, which is a combination of the final track number data and the final absolute performance time data in the read TOC information, as a search key, and the corresponding label is searched. The character data is read and sent to the system microcomputer 7 following the disk loading signal. Then, the performance is started from the first song. When the label character data is input, the system microcomputer 7 causes the display unit 4 to display a label. This allows the user to confirm the title name, artist name, etc. of the compact disc being played by the CD player unit 17.

Similarly, when the CD changer player unit 26 sets a label on a new compact disc currently playing, the operation unit 3 sets the label input mode to input a desired label. Then, the system microcomputer 7 displays the label character on the display unit 4 (this label display is switched to another source by the operation unit 3, or the CD changer player unit 26
From the CD player unit 17 or a disc loading signal from the CD player unit 17), and a label setting command including label character data is issued to the system microcomputer 25 of the CD changer player unit 26.
Send to. The system microcomputer 25 which has input the label setting command associates the label character data with the disc specific data which is the combination of the last track number data and the last absolute performance time data in the TOC information which has been read in advance from the compact disc being played. Meanwhile, the label memory 27 is stored. A different label is input each time another new compact disc is played by the CD changer player unit 26, and a label character is associated with disc specific data that is a combination of the final track number data and the final absolute playing time data of each compact disc. The data is stored in the label memory 27.

After that, when the compact disc which has already been labeled is taken out from the magazine 21 and set in the CD reproducing section 22, the system microcomputer 25 causes the TO
After the C information is read, the same disc specifying data is stored in the label memory 27 by using the disc specifying data, which is a combination of the last track number data and the last absolute performance time data in the read TOC information, as a search key. Search for
If it exists, the corresponding label character data is read and sent to the system microcomputer 7. Then, the performance is started from the first song. When the label character data is input, the system microcomputer 7 causes the display unit 3 to display a label. This allows the user to confirm the title name, artist name, etc. of the compact disc being played by the CD changer player unit 26.

The disc identification data is not limited to the combination of the final song number data and the final absolute performance time data, and if individual discs can be identified, the data recorded in other parts of the compact disc can be used. Is also good. For example, the last song number data and the absolute performance start time data of the last song number may be used, or audio data for a predetermined number of samples from the beginning of the first song may be used.

[0014]

However, in the above-described conventional vehicle-mounted audio device, a compact disc that has been labeled when played by the CD changer player unit 26 but has not been labeled by the CD player unit 17 is used. If the compact disc is loaded into the CD player unit 17 and played, the label memory 18 does not store the corresponding label character data, so that no label is displayed on the display unit 4. In order to be able to display the label, it is necessary to input the label again when the CD player unit 17 is played, and the operation is troublesome, and a label different from the label set on the CD changer player unit 26 is set. If so, two types of labels are displayed on the same compact disc, and there is a problem that the discs are mistaken for different discs. From the above, it is an object of the present invention to provide an in-vehicle audio device in which a label is set once for one recording medium, and thereafter, the label is displayed regardless of which of a plurality of playing devices is played. It is to be.

[0015]

According to the present invention, one or a plurality of recording media on which music signals are recorded can be loaded, and one recording selected from the loaded one or a plurality of recording media. A plurality of performance devices for playing the medium are provided, and a central controller that is connected to each performance device through an individual or common communication line and centrally displays various operations and performance states of each performance device, The centralized controller is capable of inputting labels and displaying labels on the recording medium being played, and when each performance device inputs label data from the communication line during the performance of the recording medium, the data read from a predetermined portion of the recording medium being played. As the recording medium specifying data, the label data is stored in its own non-volatile memory in association with the recording medium specifying data,
Then, each playing device, when starting playing the recording medium,
Using the recording medium specific data read from the predetermined portion of the recording medium as a search key, the corresponding label data is searched from its own memory, and when the corresponding label data exists, it is sent to the centralized controller via the communication line to display the label, When the label data corresponding to the recording medium specifying data does not exist, the recording medium specifying data is sent to another playing device by a communication line directly or indirectly via the centralized controller to request a search, and the other requesting device receives the request. The playing device searches for the corresponding label data from its own memory using the input recording medium specific data as a search key, and when the corresponding label data exists, directly or through the requesting playing device through the communication line. This is achieved by sending it to the centralized controller for label display.

[0016]

According to the present invention, if the label of the recording medium is set in advance during the performance by one performance device, when the recording medium is subsequently played by another performance device, the recording medium is set. Based on the recording medium specifying data read out from the performance device, the performance device previously set the label retrieves the corresponding label data from the label memory, and the central controller displays the label using the label data. This allows the user to set the label once on the new recording medium, and after that, the label can be confirmed by any performance device, and the labor of label input can be reduced. The mistake of setting different labels for the same recording medium can be prevented.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an overall configuration diagram of an on-vehicle audio device according to an embodiment of the present invention. The same components as those in FIG. 9 are designated by the same reference numerals. Reference numeral 8 denotes a tuner / cassette unit having a function as a centralized controller. Among these, 7 is a system microcomputer, which is a tuner, a tape, a CD according to a source switching operation in the operation section 3 or a compact disc loading operation in a CD player unit. The sources of the player and the CD changer are switched and the operating state of the sources after switching is displayed on the display unit 4.
Or a label setting command including label character data according to the label setting operation is sent to the CD player unit or the CD changer player unit via the common bus 30 to set the label, or conversely, the CD player unit or the CD changer. When label character data relating to the currently playing compact disc is input from the player unit via the common bus 30, the label is displayed.

Reference numeral 17A is a CD player unit, of which 16A is a system microcomputer. When a user loads a compact disc, the compact disc is loaded into the CD reproducing section 11 and a disc loading signal is sent to the tuner / cassette unit 8. , TOC information is read and stored in a built-in memory. Also, when a PLAY command is input from the tuner / cassette unit 8 with the compact disc set in the CD reproducing section 11, the system microcomputer 16A reads the TOC information and stores it in the internal memory.
Then, the label memory 18 is searched using the disc identification data composed of the final tune number data and the final absolute performance time data (final A-time) as a search key. When the same disc specific data exists, the corresponding label character data is read and sent to the tuner / cassette unit 8 via the common bus 30, and when the same disc specific data does not exist, a search including the disc specific data is performed. Send the request command to the CD changer player unit. After this, the beginning of the first song is searched and the performance is started. When the performance of the final song is over, the player returns to the first song and plays again.

If a search request command including disc specific data is input from the side of the CD changer player unit in the performance stopped state, the system microcomputer 16A
Searches the label memory 18 for the same data using the disc-specific data input as the search key. When present, the corresponding label character data is sent to the tuner / cassette unit 8 via the common bus 30.

26A is a CD changer player unit, of which 25A is a system microcomputer, and when the PLAY command is input from the tuner / cassette unit 8 and the compact disc has been set in the CD reproducing section 22, the TOC information is displayed. Read and store in the built-in memory.
If the compact disc is not set in the CD reproducing section 22, the compact disc next to the compact disc played last time is taken out from the magazine 21,
After setting in the CD reproducing section 22, the TOC information is read. Then, the label memory 27 is searched using the disc identification data composed of the final tune number data and the final absolute performance time data as a search key. When the same disc specific data exists, the corresponding label character data is read and sent to the tuner / cassette unit 8 via the common bus 30, and when the same disc specific data does not exist, a search including the disc specific data is performed. The request command is sent to the CD player unit 17A. After this, the beginning of the first song is searched and the performance is started. When the last piece of music has been played, the performance is stopped, a performance end signal is sent to the tuner / cassette unit 8 and the TOC information is read after the next compact disk is exchanged. Then, the label memory 27 is used with the disc identification data including the final track number data and the final absolute performance time data as a search key.
Search for. When the same disc specific data exists, the corresponding label character data is read and sent to the tuner / cassette unit 8 via the common bus 30, and when the same disc specific data does not exist, a search including the disc specific data is performed. The request command is sent to the CD player unit 17A. After this, the beginning of the first song is searched and the performance is started.

When the CD player unit 17A inputs a search request command including the disc identification data in the performance stopped state, the system microcomputer 25A uses the disc identification data input to the label memory 27 as a retrieval key to identify the same. Search for the existence of data. If present, the corresponding label character data is sent to the tuner / cassette unit 8 via the common bus. The other components of the vehicle audio system are configured exactly as in FIG.

2 to 4 are flow charts showing the operation of the system microcomputer 7 of the tuner / cassette unit 8, and FIG.
6 is a flowchart showing the operation of the system microcomputer 16A of the D player unit 17A, FIG. 6 is a flowchart showing the operation of the system microcomputer 25A of the CD changer player unit 26A, and FIG. 7 is a description of the data stored in the label memory 18 of the CD player unit 17A. 8 and 9 are explanatory views of data stored in the label memory 27 of the CD changer player unit 26A, which will be described below with reference to these drawings. It should be noted that the compact disc is not loaded in the CD player unit 17A and the compact discs A to F different from each other are loaded in the magazine 21 of the CD changer player unit 26A, but the compact disc is loaded in the CD reproducing section 22. Is not set. Further, as shown in FIG. 7 (1), the label memory 18 stores each label character data associated with each disc specific data for the compact discs I to K, and the label memory 27 is stored in FIG. 8 (1). As shown in, the label character data associated with the disc specifying data is stored for the compact discs B to G.

When the power is turned on, the system microcomputer 8 automatically sets the tuner mode, operates the tuner 1, switches the selector switch 6 to the tuner position, and outputs the received audio signal to an amplifier (not shown). Also, the received frequency is displayed on the display unit 4 (step 101 in FIG. 2). When the user wants to hear the performance of each compact disc loaded in the CD changer player unit 17A, the user selects the CD changer on the operation unit 3. The system microcomputer 7 switches to the CD changer mode, stops the operation of the tuner 1, and switches the changeover switch 6 to the CD changer side (step 102,
103). Then, a PLAY command is sent to the CD changer player unit 26A via the communication interface 7 and the common bus 30 (step 104). The command is sent via the communication interface 24 to the system microcomputer 2
Input to 5A.

System microcomputer 2 which received the PLAY command
5A checks whether a compact disc is currently set in the CD reproducing section 22 (steps 501 and 502 in FIG. 6),
Since the answer here is NO, the disc exchange unit 23 is controlled to take out the compact disc next to the previously played compact disc from the magazine 21, and the CD reproduction unit 22 is operated.
(Step 503). Here, it is assumed that the first compact disc A is set. Then, let the TOC information be read by the CD reproducing unit 22,
It is stored in the built-in memory (step 504). after this,
Is the same disc specific data stored in the label memory 27 by using the disc specific data, which is a set of the last track number data and the last absolute performance time data (last A-time) in the TOC information, as a search key. Search (step 505). Since it does not exist here, a search request command including the disc specific data in which the final song number data of the compact disc A and the final absolute performance time data are combined is sent to the CD player unit 17A via the communication interface 24 and the common bus 30. (Step 50
6) The beginning of the first song is searched to start playing (step 507). During the performance, music number data and performance elapsed time data (P
-Time) is sent to the tuner / cassette unit 8 (step 508).

The system microcomputer 16A of the CD player unit 17A which has received the search request command via the communication interface 15 searches the label memory 18 using the disc specific data included in the command as a search key, and the same. It is searched whether the disc specific data is stored (steps 415 and 416 in FIG. 5). here,
Since it does not exist, label character data is not transmitted (step 417).

On the other hand, the system microcomputer 7 of the tuner / cassette unit 8 checks whether label character data has been input within a certain period after sending the PLAY command (step 105 in FIG. 2). Not displayed. After that, the number of the currently playing music and the elapsed playing time are displayed based on the music number data and the elapsed playing time data which are periodically input (steps 201 to 20 in FIG. 3).
3). Here, if the user wants to set a label for the compact disc A, after setting the label input mode by operating the operation unit 3 (steps 301 to 304 in FIG. 4),
Enter the label characters in the alphabet using up to 8 characters. Then, the system microcomputer 7 displays the input label character on the display unit 4 and sends a label setting command including the label character data to the CD changer player unit 26A (steps 305 to 307). Then, the label input mode is released (step 308). The system microcomputer 25A, which has input the label setting command, changes the label character data included in the command to the TO of the compact disc A.
It is additionally stored in the label memory 27 in association with the disc specific data in which the final song number data and the final absolute performance time data in the C information are paired (steps 509, 5 in FIG. 6).
10, FIG. 8 (2)).

After that, when the performance of the final tune of the compact disc A is completed, the system microcomputer 25A stops the performance by the CD reproducing section 22 and sends a performance end signal to the tuner /
After sending to the cassette unit 8 (step 511,
512), the disc exchanging unit 23 is controlled to return the compact disc A to the magazine 21 (step 513), the next compact disc B is taken out and set in the CD reproducing unit 22 (step 503). Then, the TOC information is read and stored in the internal memory (step 50).
4). After that, the label memory 27 is searched with the disc identification data, which is a set of the last track number data and the last absolute performance time data in the TOC information, as a search key to find out whether the same disc identification data is stored (step 505). Here, since it exists, the label character data corresponding to the disc specific data is sent to the tuner / cassette unit 8 (step 514). And
The beginning of the first piece of music is searched to start playing (step 507). During the performance, music number data and performance elapsed time data (P-ti
me) is sent to the tuner / cassette unit 8 (step 508).

On the other hand, when the system microcomputer 7 receives the performance end signal, it temporarily erases the music number, the elapsed performance time, and the label display (steps 204 and 205 in FIG. 3). Next, when the label character data is input within a fixed time, the label is displayed (steps 105 and 106 in FIG. 2). From this, the user knows that the compact disc to be played is B. After that, every time the song number data and the performance elapsed time data are input, the song number and the performance elapsed time are displayed (steps 202 and 203 in FIG. 3).
When the performance of the compact disc B is finished, the performance is automatically changed to C and the performance is started. At this time, since the label character data corresponding to C is stored in the label memory 27,
A label is displayed on the display unit 4. Similarly, the performance of the compact discs D to F is sequentially performed with the label display, and F
When is over, it returns to A and is played. At this time, since the label character data relating to A is also stored in the label memory 27, the label is displayed.

After that, when the user loads the compact disc H on hand in the CD player unit 17A in order to listen to it, the system microcomputer 16A is urged by the disc loading detection signal input from the disc loading detection unit 12.
Controls the loading unit 13 to set the compact disc H in the CD reproducing unit 11 (step 40 in FIG. 5).
1, 402). Then, the disc loading signal is sent to the tuner / cassette unit 7 via the communication interface 15 and the common bus 30 (step 403). Then, after the TOC information is read by the CD reproducing unit 11 and stored in the built-in memory (step 404), the disc specific data in which the final track number data and the final absolute performance time data in the read TOC information are combined is searched for. Then, it is searched whether or not the same disk specific data is stored in the label memory 18 (step 405). Since it is not stored here, a search request command including the disc identification data is sent to the CD changer player unit 26A (step 406). Then, after the beginning of the first song is searched, the performance is started (step 407), and thereafter,
The music piece number data and performance elapsed time data read out from the compact disc H are periodically sent to the tuner / cassette unit 8 (step 408).

On the other hand, the system microcomputer 7 of the tuner / cassette unit 8 which receives the disk loading signal through the communication interface 6 sets a disk loading flag DF in a non-volatile readable / writable memory (not shown) (FIG. 3). Steps 206 and 207), the CD player mode is set, and the changeover switch 5 is set to the CD player position. Then, since the compact disc is being played by the CD changer player unit 26A until then, the STOP command is sent (step 208). The system microcomputer 25A of the CD changer player unit 26A, which has input the STOP command through the communication interface 24, stops the performance on the CD reproducing section 22 (steps 515 and 516 in FIG. 6). Then, when a search request command is input, the system microcomputer 25A uses the disk specific data input together with it as a search key to label memory 27.
It is searched whether the same disc specific data is stored (steps 517 and 518). Since it is not stored here, the label character data is not sent (NO in step 519).

The system microcomputer 7 of the tuner / cassette unit 8 checks whether label character data has been input within a fixed time after sending the STOP command (step 209 in FIG. 3). Instead, only the song number and the elapsed playing time are displayed based on the song number data and the elapsed playing time data that are periodically input from the CD player unit 17A (steps 210 to 213). If the user wants to set a label for the compact disc H, after setting the label input mode by operating the operation unit 3 (steps 301, 302, 309 in FIG. 4),
Enter the label characters in the alphabet using up to 8 characters. Then, the system microcomputer 7 displays the input label character on the display unit 3 (steps 310 and 311) and sends a label setting command including the label character data to the CD player unit 00A (step 312). And
The label input mode is released (step 308). The system microcomputer 16A, which has input the label setting command, associates the label character data included in the command with the disc specific data in which the final tune number data and the final absolute playing time data in the TOC information of the compact disc H are associated with each other. It is additionally stored in the label memory 18 (step 4 in FIG. 5).
09, 410, see FIG. 7 (2). After that, when the last piece of music on the compact disc H is finished playing, the system microcomputer 16A searches the beginning of the first piece of music and restarts the performance (steps 411 and 407).

When it is desired to listen to the performance in place of the compact disc G, the operation unit 14 performs an eject operation. Then, the system microcomputer 16A stops the performance of the CD reproducing section 11 and causes the loading section 13 to unload the compact disc H (step 41).
2, 413). Then, a disc ejection signal is sent to the tuner / cassette unit 8 (step 41).
4). The system microcomputer 7 which has received the disc ejection signal clears the disc loading flag DF, and the display unit 4
The label display, track number, and elapsed playing time display in () are erased (Fig. 3
211, 214, 215). After that, when the user loads the compact disc G into the CD player unit 17A, the system microcomputer 16A sets it in the CD reproducing section 11 (steps 401 and 402 in FIG. 5),
A disk loading signal is sent to the tuner / cassette unit 8 (step 403). Then, the TOC information is read (step 404), and the same disc specifying data is stored in the label memory 18 using the disc specifying data, which is the combination of the last track number data and the last absolute performance time data in the TOC information, as a search key. It is searched whether there is any (step 405). Since it is not stored here, a search request command including the disc identification data is sent to the CD changer player unit 26A (step 406). Then, after the beginning of the first song is searched, the performance is started (step 407), and thereafter, the compact disc H is periodically started.
The music number data and performance elapsed time data read out from the CPU are sent to the tuner / cassette unit 8 (step 40).
8).

The system microcomputer 7 of the tuner / cassette unit 8 which has received the disk loading signal via the communication interface 6 sets a disk loading flag (steps 206 and 207 in FIG. 3). On the other hand, the system microcomputer 25A which has input the search request command via the communication interface 24 searches the label memory 27 for the same disk specific data stored using the disk specific data input together as a search key (FIG. 6). 517, 518). Since it is not stored this time, the corresponding label character data is sent to the tuner / cassette unit 8 (steps 519 and 520).

The system microcomputer 7 of the tuner / cassette unit 8 checks whether label character data has been input before a certain time has elapsed after the disk loading signal was input (step 209 in FIG. 3), and this time the result is YES. ,
A label is displayed on the display unit 4 (step 216). Therefore, the user can see the label display even for the compact disc in which the label character data is not stored in the label memory 18 of the CD player unit 17A, and it is understood that the compact disc being played is G. After that, the system microcomputer 7 uses the CD player unit 17
The music number and the elapsed playing time are displayed based on the music number data and the elapsed playing time data which are periodically input from A (steps 210 to 213).

According to this embodiment, a CD player unit 17A or C is provided for a new compact disc.
If the label is set once when played by any of the D changer player units 26A, not only when the same unit is played thereafter, but also when the other unit is played automatically. The label can be displayed, and the user does not have to label the same compact disc many times. As a result, the same compact disc can be erroneously set with different labels for the CD player unit 17A and the CD changer player unit 26A. Therefore, it is possible to prevent different labels from being displayed depending on which one is played.

In the above embodiment, a system in which one CD player unit and one CD changer player unit are combined has been described, but a system in which a plurality of CD player units and a plurality of CD changer player units are combined can also be applied in the same manner. It can also be applied to a system in which only a plurality of CD player units are combined or a plurality of CD changer player units are combined. Also,
Although the search request command including the disc specific data is exchanged directly between the CD player unit and the CD changer player unit, it may be exchanged via the tuner / cassette unit.
Although the label character data searched based on the search request is sent directly to the tuner / cassette unit, it may be sent via the request source unit. Further, the music signals reproduced by the CD player unit and the CD changer player unit are input to the tuner / head unit in an analog format through a dedicated line different from the common bus, but in the digital format, the tuner / head is used in the common bus. It may be sent to the unit and D / A converted within the tuner / head unit. Furthermore, although a compact disc is given as an example of the recording medium, another recording medium such as MD or DCC may be used.

[0037]

As described above, according to the present invention, if the label of the recording medium is set in advance during the performance by a certain performance device,
After that, when the recording medium is played by another playing device, the playing device previously set the label based on the recording medium specifying data read from the recording medium retrieves the corresponding label data from the label memory, and the label data Since the centralized controller is configured to display the label by using, the user only needs to set the label once for the new recording medium, and after that, the label can be confirmed regardless of the performance device. Yes, the labor of label input is reduced,
Moreover, it is possible to prevent the mistake of setting different labels on the same recording medium.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a vehicle-mounted audio device according to an embodiment of the present invention.

2 is a first flowchart showing the operation of the system microcomputer of the tuner / cassette unit in FIG. 1. FIG.

3 is a second flow chart showing the operation of the system microcomputer of the tuner / cassette unit in FIG. 1. FIG.

FIG. 4 is a third flowchart showing the operation of the system microcomputer of the tuner / cassette unit in FIG.

5 is a flowchart showing the operation of the system microcomputer of the CD player unit shown in FIG.

6 is a flowchart showing the operation of the system microcomputer of the CD changer player unit shown in FIG.

7 is an explanatory diagram of data stored in a label memory of the CD player unit shown in FIG.

FIG. 8 is an explanatory diagram of data stored in a label memory of the CD changer player unit in FIG.

FIG. 9 is an overall configuration diagram of a conventional vehicle-mounted audio device.

[Explanation of symbols]

 3 Operation part 4 Display part 7, 16A, 25A System microcomputer 8 Tuner / cassette unit 17A CD player unit 18, 27 Label memory 26A CD changer player unit 30 Common bus

Claims (1)

[Claims] 1. A plurality of performance devices capable of loading one or a plurality of recording media on which music signals are recorded and playing a single recording medium selected from the loaded one or a plurality of recording media, It is equipped with a centralized controller that is connected to each performance device through an individual or common communication line and that centrally displays various operations and performance statuses for each performance device. Label display is possible, and when each performance device inputs the label data from the communication line during the performance of the recording medium, the data read from a predetermined portion of the recording medium during the performance is used as the recording medium specifying data, and the recording medium specifying data is recorded. The label data is stored in its own non-volatile memory in association with, and each playing device starts playing the recording medium.
Using the recording medium specific data read from the predetermined portion of the recording medium as a search key, the corresponding label data is searched from its own memory, and when the corresponding label data exists, it is sent to the centralized controller via the communication line to display the label, When the label data corresponding to the recording medium specifying data does not exist, the recording medium specifying data is sent to another playing device by a communication line directly or indirectly via the centralized controller to request a search, and the other requesting device receives the request. The playing device searches for the corresponding label data from its own memory using the input recording medium specific data as a search key, and when the corresponding label data exists, directly or through the requesting playing device through the communication line. A car audio system characterized by being sent to a centralized controller for label display Place