JPH08221877A - Player system - Google Patents

Abstract

PURPOSE: To satisfactorily perform a reproducing processing by confirming medium identification information about a newly loaded recorded medium, collating them with a set program content and performing a required reproducing operation control according to the collated result. CONSTITUTION: A control part 11 and respective players 1, 2, 3 are connected by a control busses 19 and the control part 11 can grasp respective operating states of players 1, 2, 3 and housed information of CDs by commands from the part 11 to form the disk IDs with respect to respective CDs, that is, medium identification information. When a program reproducing operation is performed, the control part 11 makes the CD player perform reproducing operation of the track of the track number of a CD. In general when a user load is performed to the CD player 1 during the reproducing operation by the CD player 2 or 3, the control part 11 stops the operation of the player 2 or 3 to perform the reproducing operation in the player 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a player system in which a plurality of reproducing devices are connected.

[0002]

2. Description of the Related Art A CD (Compact Disc) player,
Playback devices for playing music and the like, such as MD (mini disk) players, have become widespread. In some cases, a player system in which a plurality of these reproducing devices are combined is constructed.

Considering a car-mounted CD player generally called a car audio, for example, a normal CD player (one-sheet player) mounted in a dashboard of a car.
In addition to this, for example, you can store multiple CDs such as 5, 10,
A CD changer player that can be selectively played is sometimes installed, for example, in the trunk of a car or under a seat. In this case, each CD player is connected to the control unit by a system bus line or the like so that the reproduction can be selectively controlled according to the user's operation.

[0004] In such a player system, the single-player CD player mounted on the dashboard can usually be replaced by the user at any time. On the other hand, the CD changer player can change the CD while driving. CDs are not replaced. For the CD changer player, the user performs an operation of designating the disc number to be reproduced, for example. Then, the control unit sends a control signal for reproducing the disc having the disc number, and thus the designated disc is reproduced by the CD changer player.

The disc number is set according to the storage position in the CD changer player, and is not an absolutely unique number for each CD. For example, if 5 CDs can be stored, 1 to 5 disc numbers are set in the respective storage positions. Then, for example, the CD stored in the storage position of the disc number 1 is managed as the disc number 1.

[0006]

By the way, in the player system as described above, so-called program reproduction can be performed as in a normal CD player. The program reproduction is an operation mode in which the user makes a program setting that sequentially specifies a track (song) that is a content unit to be reproduced so that the reproduction is performed in the order.

In the case of a player system having a single CD player and a CD changer player capable of accommodating, for example, five CDs, the selection of the music for program reproduction can be performed from the six CDs. For this reason, of course, when setting the program, it is necessary to set not only the track number of the desired song but also the disc number and the player pointer. The disc number is always "1" when selecting a song in a CD stored in a single CD player. The player pointer designates the player in which the CD is stored. In this case, 1
This is information for discriminating between a CD player with one sheet and a CD changer player. Furthermore, C
Even if D is replaced, the disc ID peculiar to each CD is also stored so that the program is not invalidated. The disc ID is generated, for example, from TOC information of the CD (table of contents recorded on the innermost side of the disc or the like).

When the user sets the program while inputting such information, the control unit sequentially reproduces the designated track on the designated disc of the designated player.

However, even during such a program reproducing operation, the C mounted on the dashboard or the like is used.
In the D player, the CD may be exchanged. In the player system as described above, the one-player CD player is often set as the priority player. In this case, for example, even when the CD-changer player is playing, the one-player CD player is newly added. When a CD is inserted, the operation of automatically shifting to the reproduction operation of the single-sheet CD player is performed. Hereinafter, such a manual CD replacement by the user is referred to as user loading.

This priority operation is suitable for, for example, a vehicle-mounted player system. In other words, in the case of a CD player mounted on the dashboard, when a CD is inserted, it is played back without performing a playback operation, that is, the need for a playback operation is safety during driving. It is suitable for.

However, considering this during the program reproducing operation, even if the user loaded CD is a CD included in the program setting, the program mode is ignored, that is, the normal mode is restored and the user is loaded. The playback of the first song of the CD will be performed. Therefore, even if the disc ID is stored in the corner program setting and the CD is ejected once after the program setting and then user-loaded again, the operation according to the program setting cannot be performed.

[0012]

In view of such problems, the present invention has a control unit and a plurality of reproducing devices connected to each other, and each reproducing device can be selectively operated by the control of the control unit. It is an object of the present invention to allow a player system to perform an operation associated with program setting well even if a recording medium is replaced.

Therefore, in accordance with the program setting operation for designating the content unit for performing the reproducing operation in order, the control unit stores at least information (for example, track number) of the designated content unit as each program step. The medium identification information (for example, disc ID) unique to the recording medium including the content unit is stored. When a recording medium is loaded into a certain playback device in the player system during the program playback operation, the medium identification information of the newly loaded recording medium is checked and collated with the program setting content. The required reproduction operation control is performed according to the comparison result.

[0014]

When a recording medium such as a disc is newly loaded, the medium identification information is confirmed before the next operation is performed, so that the most suitable reproducing operation according to the loaded recording medium is performed. Can be selected and executed.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the player system of the present invention will be described below with reference to FIGS. In this embodiment, for example, as a vehicle-mounted player system, a system having one CD player and two changer players is provided.

FIG. 1 shows the configuration of the player system of the embodiment. The CD player 1 is a single-player player mounted on, for example, a dashboard of a car. The CD changer players 2 and 3 are installed under a trunk or under a seat, for example, and each of them can store, for example, 5 CDs.

Each of the players 1, 2 and 3 is connected to the control unit 10. The control unit 11 in the control unit 10 controls the entire player system. The control unit 11 is formed by a microcomputer.

The control unit 11 accesses the ROM 12 and the RAM 13 to read / store necessary information. The ROM 12 stores an operation control program and various processing coefficients. On the other hand, the RAM 13 is an area where the control unit 11 stores, for example, program setting information, a disc ID, and the like.

The control unit 11 and the players 1, 2, 3 are connected by a control bus 19, and the commands of the control unit 11 control the operations of the players 1, 2, 3. In addition, the control unit 11 controls the operating states of the players 1, 2, and 3 and information on the stored CDs (TOC information, etc.).
Can be grasped. The control unit 11 also sets and manages a player pointer as an address for distinguishing each player 1, 2, and 3. Here, it is assumed that the player pointer of the CD player 1 is managed as PP1, the player pointer of the CD changer player 2 is managed as PP2, and the player pointer of the CD changer player 3 is managed as PP3.

The reproduced audio signals from the players 1, 2 and 3 are switched by the switching circuit 14 of the control unit 10, respectively.
An audio signal line AU is connected to be supplied to terminals T ₁ , T ₂ and T ₃ at The switching circuit 14 performs the switching operation under the control of the control unit 11. Switching circuit 1
The reproduced audio signal selected in 4 is subjected to processing such as equalizing, volume output level, and reverb in the signal processing unit 15, and then supplied to the speaker unit 4 via the power amplifier 16 and output as audio. It will be. The processing unit and the like in the signal processing unit 15 are set by the control unit 11.

The user also operates the operation unit 17 on such a player system. Operation part 17
Various keys and the like are provided so that various operations such as player designation, reproduction, stop, volume adjustment, effect operations such as equalizing and reverb, program reproduction registration operation, program reproduction mode operation, and the like can be executed. The operation information in the operation unit 17 is supplied to the control unit 11. The control unit 11 supplies required commands to necessary parts according to the input operation information, and causes the operation according to the operation to be executed. The display unit 18 is a small display including, for example, a liquid crystal panel, and the operating state of the player system, the disc number during playback, the track number, time information, mode state, etc. are displayed under the control of the control unit 11. Is configured.

In such a player system, the control unit 11 once generates a disc ID for a CD loaded in any one of the players 1, 2 and 3, and then the disc ID and the track recorded on the CD. The numbers are associated and stored in the RAM 13. Disk ID
Can be made unique identification information for the CD by combining and generating information such as the total playing time and the number of tracks in the TOC information of the CD. CD for CD changer players 2 and 3
The disc ID for each CD can be generated by performing the TOC reading operation for all the CDs in advance when the CD is loaded. Also for the CD player 1, since the TOC information is first read when the CD is inserted, the disc ID can be generated.

The control unit 11 thus generates the disc IDs for the CDs loaded in the players 1, 2, and 3, and at the same time, the disc number assigned to each CD, the number of tracks of each CD, and each CD. The data shown in FIG. 3 is formed in the RAM 13 in association with the player pointer of the player in which is stored. In the CD changer players 2 and 3, "1" to "5" are assigned to the disc numbers corresponding to the storage positions. CD loaded in CD player 1
About, the disc number is always "1"

In FIG. 3, present players 1, 2,
With respect to the CD loaded in any of the three, all items of the disc ID, the disc number, the number of tracks, and the player pointer are stored. That is, CD
CD that has been inserted into the player 1 is a CD disk ID that player pointer is a "PP1" is "ID _3", the disc number is "1", the number of tracks (number of recording tracks) is "8" It is said that.

The five CDs stored in the CD changer player 2 have a player pointer of "PP".
2 ”, the disk ID is“ ID ₇ ”to“ ID
Each of the ₁₁ "CDs is given a disc number" 1 "to" 5 "corresponding to the storage position, and the number of each track is stored.

In the example of FIG. 3, the CD changer player 3 stores only three CDs as an example, and the three CDs whose player pointer is "PP3", In other words, the disc ID is "ID
_The CDs " ₅ ", "ID ₁₃ " and "ID ₁₅ " are stored in the CD changer player 3. Then, "1", "3", and "4" are given as disc numbers corresponding to the storage positions, respectively, and the respective track numbers are stored.

Here, when a certain CD is once taken out from any one of the players 1, 2 and 3, the information of the disc number and the player pointer is erased for the CD, and only the disc ID and the track number are stored data. Left as. In FIG. 3, the disc IDs are "ID ₁ " and "I".
D ₂ ”ID ₄ ” ID ₆ ”ID ₁₂ ” ID ₁₄ ”I
The CD "D ₁₆ " is information about the CD that has been loaded into any of the players 1, 2 and 3, but is currently being taken out. By storing the data shown in FIG. 3 in the RAM 13, the control unit 11 can grasp the CDs currently stored in the respective storage positions of the players 1, 2, and 3.

The program reproducing operation in such a player system will be described below. To perform program playback, the user first needs to set the program. This is the player pointer, disc number,
The operation is to specify the track number.

In response to this program setting operation, the control section stores the input data in the program area of the RAM 13 as shown in FIG. 4, for example. In this Figure 4. It shows a case where the user has set the program settings for nine songs in program steps 1-9. As can be seen from the figure, the disc ID is also stored for each track registered as each program step.

When a program reproducing operation is performed after such program setting is performed, the control section 11 first determines, as a program step 1, a player pointer P.
The CD changer player 2 designated as P2 is caused to execute the reproducing operation of the track of the track number "3" of the CD of the disk number "2". Then, when the reproduction of the music is completed, as a program step 2, the reproduction operation of the track of the track number "1" of the CD of the disk number "4" is executed to the CD changer player 3 which is the player pointer PP3. Let Similarly, the reproduction control of the track registered as the program step is executed.

In the case of FIG. 4, the CD used as the player pointer PP1 is also registered, but the CD stored in the CD player 1 can be arbitrarily replaced by the user. Therefore, during the program reproducing operation, the CD having the disc ID “ID ₃ ” included in the program setting may be ejected. It is also possible that the program reproduction is started after being taken out. Therefore, when the CD registered as a certain program step is taken out during the program reproducing operation, the CD is removed and the operation of the next program step is performed.

However, when such a CD is reloaded, it is preferable that the CD be reproduced according to the contents of the program settings.
Therefore, in the present embodiment, when a CD included in the program content is inserted by the user loading to the CD player 2 performed during the program reproducing operation, the track number of the track number included in the program content is included in the CD. Trying to play.

In the player system of this embodiment, C
D player 1 is the priority player, and usually C
If the CD changer player 2 or 3 is user-loaded while the reproducing operation is being performed by the D changer player 2 or 3, the operation of the CD changer player 2 or 3 is stopped and the CD player 1 normally reproduces from the first track. I am trying to execute the action.

FIG. 2 shows the processing of the control unit 11 when the user is loaded. When the CD player 1 is loaded by the user, since the CD player 1 is basically the priority player, the operation mode of the CD player 1 is first switched regardless of the state until then. That is, the control unit 11 sends a command to the switching circuit 14 to connect it to the terminal T ₁ (F101).

Here, it is confirmed whether or not the program reproducing operation is currently being performed (F102). If the program is not being reproduced, the process proceeds to step F103 to send a normal reproduction start command to the CD player 1. This allows
The CD loaded by the user in the CD player 1 is
It will be reproduced normally from the first track.

However, if the user loading is performed during the program reproducing operation, step F1
Proceed from 02 to F104, first the TOC from the loaded CD
Wait for information to be read (F104). Since the disc ID is generated from the TOC information, this process is a disc ID discrimination process.

The control unit 11 controls the user loaded CD.
If the disc ID is determined, the variable X is set to 0, and the variable C is set to the number of registered songs for the program reproduction operation (F105). When the program is registered as shown in FIG. 4, C = 9. Then, in step F106, the disc ID indicated in the contents of the program step number C
And the disc ID of the user-loaded CD is collated. That is, first, as the program content having the program step number “9” in FIG.
₁₀ ”is compared with the disc ID of the CD loaded this time.

If the disc ID comparison result is a match, the value of the variable C is substituted for the variable X (F108), and the process proceeds to step F109 to decrement the variable C. If they do not match, the process proceeds to step F109 without doing anything to decrement the variable C.

After decrementing the variable C, if C = 0 is not satisfied (F110), the process returns to step F106. That is, next, the disc ID “ID ₃ ” as the program content having the program step number “8” is compared with the disc ID of the CD loaded this time. Then, the process of step F108 is performed only when they match. After that, the process from step F106 is repeated while decrementing the variable C in the same manner, and the disc ID at each program step number and the CD loaded by the user are repeated.
Disc IDs are sequentially collated.

At the time when all matching is completed, that is, when C = 0, the process proceeds to step F111, and it is confirmed whether or not a match has been obtained in the matching processing of step F106. That is, the case where the variable X = 0 is the case where no match has been obtained at all, while the case where the variable X ≠ 0, the value of the variable X is the value of the CD loaded by the user among all program steps. This is the youngest program step number that matches the disc ID.

If X = 0 in step F111, the CD loaded by the user this time is a CD irrelevant to the contents of the program setting, and therefore the normal processing corresponding to the loading of the CD player 1, which is the priority player, is performed. Do. That is, the process proceeds to step F114, the program reproduction mode is turned off, and a normal reproduction start command is transmitted to the CD player 1 (F115). As a result, the CD loaded by the user in the CD player 1 is normally reproduced from the first track.

On the other hand, if the disc IDs match, the operation of the CD player 1, which is the priority player, is still prioritized. However, the user loaded CD is processed based on the program setting contents. To do. That is, the value of the variable X is given as the program step number for executing the operation in the program reproduction mode (F112), and the operation command is transmitted to the CD player 1 according to the content of the program step number (F113). .

For example, if the program having been reproduced by the program setting as shown in FIG. 4 and the CD having the disc ID "ID ₃ " is user-loaded to the CD player 1, the user-load is performed. Based on the above, the operation of the CD player 1 which is the priority player is prioritized, but at this time, the program reproduction operation is not canceled and the operation of the program step number "7" of FIG. 4 is performed. In other words, CD
The player "1" reproduces the track "# 8" (reproduction of the eighth music). After that, the operations of the program step number "8" and the program step number "9" are executed.

By performing the operation of this embodiment as described above, the user loading to the priority player does not completely ignore the program setting operation until then, and the user loading to the priority player does not occur. In consideration of the fact that the program reproduction has been performed until then, the most preferable reproduction operation is performed.

In a player system in which the priority player is not set, or in a player system in which the user may be loaded to a player other than the priority player, the disc ID and the program content are similarly set for the loaded CD. After matching
If they match, the user-loaded CD may be prioritized and the subsequent CDs may be reproduced in the order of program setting, as in the above embodiment. Alternatively, the program reproducing operation may be continued without breaking the order of the program steps, and when the program step corresponding to the user loaded CD is reached, the designated track of the CD may be reproduced. Good. Of course, other than this, various kinds of processing according to the program content can be considered.

Although the embodiment has been described as a player system using a CD player, an MD player or a DAT is used.
The present invention can be applied to a player system such as a (digital audio tape) player and a player system in which various reproducing apparatuses are mixed.

[0047]

As described above, in the player system of the present invention, when a recording medium is inserted into a certain reproducing device during the program reproducing operation, the medium identification of the newly loaded recording medium is performed. Since the information is checked and collated with the program settings, and the required reproduction operation control is performed according to the comparison result, the most suitable reproduction operation according to the loaded recording medium can be selected and executed. become. For example, even when loading to the priority player, the operation according to the program can be executed, and the operation most suitable for the user is automatically executed.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a player system of the present invention.

FIG. 2 is a flowchart of processing when a user load occurs in the player system of the embodiment.

FIG. 3 is an explanatory diagram of stored data for CD management of the player system of the embodiment.

FIG. 4 is an explanatory diagram of stored data for a program reproducing operation of the player system of the embodiment.

[Explanation of symbols]

 1 CD player 2, 3 CD changer player 10 Control unit 11 Control unit 12 ROM 13 RAM 14 Switching circuit 17 Operation unit 19 Control bus

Claims (1)

[Claims] 1. A player system in which a control unit and a plurality of reproducing devices are connected to each other so that each of the reproducing devices can be selectively operated under the control of the control unit. Depending on the program setting operation that specifies the content unit to be
As each program step, at least the information of the designated content unit and the medium identification information unique to the recording medium containing the content unit are stored, and are recorded in a certain reproducing device during the program reproducing operation. When a medium is loaded, the medium identification information about the newly loaded recording medium is checked, the content is collated with the program setting content, and the required reproduction operation control is performed according to the collation result. A player system characterized in that