JPH075569Y2 - Recording medium playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention In the present invention, in a recording medium reproducing apparatus having a so-called auto-change function for reproducing recording media of different types, the recording medium of a desired type is preferentially reproduced. The present invention relates to a recording medium reproducing device that can perform.

2. Description of the Related Art Conventionally, compact discs (hereinafter referred to as “discs”) include, in addition to music discs on which music is recorded, CD-ROMs on which, for example, vehicle-mounted maps such as maps for each area are recorded.
A disk (hereinafter referred to as "ROM disk") is being developed. These plural types of discs are stored in a storage unit capable of storing a plurality of discs, which is called a magazine, in a reproducing apparatus having an automatic change function, and are mounted in the reproducing apparatus. After that, a desired type of disk is selected and each is played back.

In the above-mentioned music disk or ROM disk, for example, the innermost circumference of this recording surface, the recorded contents of the disk as so-called lead-in information (for example, reproduction time and number of tracks)
Is recorded, and mutual identification data for identifying the type is also recorded. Conventionally, in order to select a desired type of disk from the disks stored in a magazine, an operator first inputs an input signal corresponding to the desired type of mutual identification data. After the input signal is input, the disc stored in the predetermined storage position of the magazine (for example, the storage position at the end) is once placed on the turntable, and the mutual identification data is read by the pick-up, The comparison with the input signal that has been input is performed. As a result of the comparison, if the mutual identification data corresponding to the input signal and the read mutual identification data match, the disc reproducing operation is started. On the other hand, if they do not match as a result of the comparison, the disk is re-stored in the original storage position in the magazine, and subsequently the disks stored in the adjacent storage positions are sequentially taken out and the same processing is performed. .

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention When the storage position of the desired type of disk is separated from the storage position of the magazine in which the comparison of the input signal and the mutual identification data is started, the disk of the undesired type is separated. After the comparison operation has been carried out, the desired type of disk can be found. Therefore, it takes a lot of time to reproduce a desired type of disk.

For example, consider a case in which a plurality of music disks and some ROM disks are stored in a magazine in a vehicle-mounted disk reproducing device. ROM in this magazine
When playing a disc, after comparing the mutual identification data of some music discs with the input signal, the mutual identification data of the desired ROM disc tends to be captured, and there is a tendency for playback to occur. Need a lot of time. Therefore, the convenience of the map cannot be seen quickly while driving, and the operability of the playback device is reduced.

An object of the present invention is to solve the above-mentioned problems, and it is possible to select and reproduce a desired type of recording medium from a plurality of types of recording media in a short time, and improve operability. An object of the present invention is to provide a recording medium reproducing apparatus capable of performing the same.

Means for Solving the Problems The present invention provides storage means for individually storing a plurality of types of recording media in which mutual identification data for each type is recorded, reading means for reading the recorded contents of the recording medium, and the storage means. Storage means for respectively storing the mutual identification data of the recording medium in the storage medium together with the storage position data in the storage means for storing the recording medium, and a control means for controlling these, and a specific type of recording medium is selected for the control means. The recording medium reproducing device is characterized in that the control means selects and reproduces a recording medium of a corresponding type in the storing means based on the stored contents of the recording means when the instruction is given. .

Operation According to the present invention, the recording medium reproducing apparatus first reads the respective types of mutual identification data recorded in a plurality of types of recording media individually housed in the housing means by the reading means. The read mutual identification data is stored in the storage unit together with the storage position data indicating the storage position of the recording medium in the storage unit. The control unit controls the inserting / discharging operation of the accommodating unit into the reproducing device, the reading operation of the reading unit, and the storing operation of the storage unit. When the control unit is instructed to select a specific type of recording medium, the control unit can select and reproduce a corresponding type of recording medium in the storage unit based on the stored contents of the storage unit. . Therefore, the time required to select and reproduce a specific type of recording medium among a plurality of types of recording media is significantly reduced.

Embodiment FIG. 1 shows a recording medium reproducing apparatus 1 according to an embodiment of the present invention.
3 is a block diagram showing the electrical configuration of FIG. In the magazine 2 capable of storing N discs, as storage positions of the N discs, storage regions C1 to Cn (hereinafter referred to as a "storage region" when collectively referred to as "storage regions") are stacked and arranged from top to bottom in FIG. C ”) is formed.

Each storage area C stores a disk for each type. In addition, in any of the storage areas C, any type of disk may not be stored. In this embodiment, the plurality of types are two types (music disc, ROM disc), and the discs D1 to Dn are individually provided for each storage area C as described later (collectively referred to as "disc D").
Is stored. The reference numeral of the disk stored in the storage area Ci is Di.

The magazine 2 in which a plurality of disks D are stored is mounted on the magazine mounting portion 3 of the reproducing device 1. The mounting unit 3 includes, for example, a magazine moving member 5, which includes a bottom surface portion that supports the magazine 2 and a fitting portion that is provided upright vertically to the bottom surface portion and that has an uneven portion that meshes with a gear 4 described later. It is configured to include a gear 4 that meshes with the uneven portion, a motor 6 that rotationally drives the gear 4 in forward and reverse directions, and the like.

When the magazine 2 is mounted on the magazine mounting portion 3 of the reproducing apparatus 1, the disk D1 is taken out by a take-out means (not shown) from a predetermined storage area, for example, the uppermost storage area C1 and the turntable 7 is placed on the turntable 7. Placed on. Thereafter, the motor 8 is driven to rotate, and the pick-up 9 reads the lead-in information recorded on the innermost circumference of the recording surface of the disk D1, for example. This lead-in information includes at least mutual identification data for discriminating the type of disk. The read lead-in information is signal-exchanged by the information control circuit 10 including a micro computer and the information is decoded. In the memory 11 including a random access memory (RAM) and the like, for example, as will be described later, the read mutual identification data indicates a predetermined flag together with the storage position data indicating the storage area C1 in which the read disk D1 was stored. It is stored by setting.

The disk D1 from which the lead-in information has been read is re-stored in the storage area C1 which was initially stored by a storage means (not shown). Subsequently, the disk D2 stored in the adjacent storage area C2 is ejected, placed on the turntable 7, the same operation as described above is repeated, and the storage position data and the mutual identification data are stored in the memory 11. To be done. Thereafter, the disks Di in the respective storage areas Ci are sequentially placed on the turntable, the lead-in information is read by the pick-up 9, and the storage operation in the memory 11 is performed. Therefore, when the data of the disk Dn in the last storage area Cn is stored in the memory 11, the storage position data and the mutual identification data of all the disks stored in the magazine 2 are stored in the memory 11. Then, the preparation for the reproducing operation is completed.

The operator can select a desired disc type from a plurality of types of discs stored in the magazine 2. For example, when the driver of a car wants to immediately check the map or the like while driving and wants to reproduce the ROM disk, the selection switch 12 inputs an input signal corresponding to the mutual identification data indicating the ROM disk. The input signal is input to the selection control circuit 13 including a microcomputer.

The selection control circuit 13 reads from the memory 11 storage position data indicating a storage area in which a specific type of disk (ROM disk in this embodiment) having mutual identification data corresponding to an input signal is stored. Based on the read storage position data, the selection control circuit 13 drives the motor 6 of the magazine mounting portion 3 so that the selected disk D can be taken out by the take-out means (not shown) and placed on the turntable 7. To move the magazine 2. Therefore, the desired ROM
The time required to replay the disk is significantly reduced, and you can quickly check the map.

FIG. 2 is a diagram showing a storage state 15 of the memory 11. For example, the memory 11 is divided into N storage areas corresponding to the N storage areas C, and each storage area S has stock numbers 1 to N, respectively. That is, each stock number is the storage position data indicating each storage area C, and the numbers of the stock numbers respectively correspond to the subscripts of the storage areas C1 to Cn. In each storage area, a ROM disk flag, a music disk flag, and a nonconformity flag described later are set and stored as flags for determining mutual identification data.

Each flag is set with, for example, 1 bit and is "1".
Indicates the reset state of each flag, and "0" indicates the reset state of each flag. As described above, in the storage operation before reproduction, if the decrypted mutual identification data indicates the ROM disk, the ROM disk flag is set to the set state, while if it indicates the music disk, the music is set. Set the disk flag to the set state. That is, the second
In the figure, it is shown that the storage areas C1, C3, C4, Cn contain music disks, and the storage areas C2, C
5 shows that the ROM disk is stored. Further, from the stock numbers 6 and N-1 in which the ROM disk flag and the music disk flag are in the reset state, it is shown that, for example, the disk is not stored in the storage areas C6 and C (n-1).

The incompatibility flag is a flag which is set by the operator to the set / reset state as described later, and for example, the set state is set to a disc of which reproduction is not prioritized in the selected specific type of discs. That is,
The disk whose mismatch flag is in the reset state is preferentially reproduced. For example, a ROM disk such as a map is likely to be required to be repeatedly reproduced by the operator in some cases. Therefore, according to the incompatibility flag, a process of postponing the reproduction of an undesired disk is performed on a plurality of disks of a desired type. By this process, it is possible to further shorten the time required to reproduce the desired disk.

The storage of the above storage area is erased when the magazine 2 is ejected from the reproducing apparatus 1, and all the flags are set to the reset state.

FIG. 3 is a flow chart for explaining the control operation for storing the mutual identification data of each disk D in the memory 11. The program shown in FIG. 3 starts when the magazine 2 in which the disks are stored is mounted in the above-mentioned magazine mounting portion.

When the program starts, it is determined in step s1 whether the storage area in which the storage operation is to be performed is the storage area of the first stage (for example, the storage area C1 in this embodiment). If the storage area in which the storage operation is to be performed is the first stage, the process proceeds from step s1 to step S2.

At step s2, it is judged whether or not the disk exists in the storage area of the first stage. If the disk does not exist, the process proceeds from step s2 to another process. In other processing, for example, the ROM disk flag and the music disk flag are set to the reset state of "0" to indicate that there is no disk in the first stage for the storage area of stock number 1. A process such as setting a flag to is performed. If it is determined in step s2 that the disk exists in the storage area of the first stage, the process proceeds from step s2 to step s3.

At step s3, the lead-in information of the disk is read by the pick-up 9, and it is judged whether or not the mutual identification data of the read disk indicates the ROM disk. When it is determined that the disk read from the mutual identification data is the ROM disk, the process proceeds from step s3 to step s4. In step s4, the ROM disk flag at stock number 1 in the memory 11 is set to the set state of "1", and the music disk flag remains in the reset state.

On the other hand, if it is determined in step s3 that the disk read from the mutual identification data is not the ROM disk, the process proceeds from step s3 to step s5. In step s5,
It is determined that the read disk is a music disk, the music disk flag at stock number 1 is set to the set state of "1", and the ROM disk flag remains in the reset state.

When the processing is performed in step s4 or step s5, the processing proceeds to step s1 again. At step s1, it is judged again whether or not the storage area to be stored is the first storage area. Since the determination of the storage area of the first stage has already been completed as described above, the process proceeds from step s1 to step s6.
At step s6, it is determined whether or not the subsequent storage operation is for the storage area of the second stage. If the storage area in which the storage operation is to be performed is the second stage, the process proceeds from step s6 to step s2 again, and the processes of steps s2 to s5 are repeated as described above. The storage area where each flag is set in step s4 or step s5 is stock number 2. After that, the above-mentioned storage operation is performed for the storage areas of N stages, and RO is stored in the storage area having the stock number corresponding to the storage area of each stage.
The M disk flag and the music disk flag are set.

When the flags are set in all the storage areas, the process goes through steps s1 to s7 again, and then proceeds to step s8.
At step s8, since the storage operation of all the stored disks D is completed, the motor 6 is rotationally driven to start the operation of returning the magazine 2 to the predetermined initial position, and at step s9, the magazine 2 is read. It is determined whether or not it has returned to the initial position. If the magazine 2 is not yet returned to the initial position, the process repeats steps s8 and s9, the motor 6 is rotationally driven, and the movement of the magazine 2 is continued.

After that, when the magazine 2 returns to the initial position, the process proceeds from step s9 to step s10. At step s10, the key input for starting the reproducing operation is awaited. When the key input is made, the processing proceeds to other processing such as the reproducing operation, and the program ends.

FIG. 4 is a flow chart for explaining the control of the reproducing operation of the disk D. After the storage operation is completed according to the program of FIG. 3, when the operator inputs an input signal indicating the type of disk desired by the operator from the selection switch 12 of FIG. 1, the program of FIG. Start. In this embodiment, it is assumed that the desired type of disk is a ROM disk.

When the program starts, it is first determined in step m1 whether or not the disk to be reproduced is a ROM disk based on the input signal inputted. RO to play
If it is determined that the disk is an M disk, the process proceeds from step m1 to another process. That is, in other processing, for example, a music disc reproducing operation is performed or another reproducing apparatus is controlled.

If it is determined in step m1 that the disk to be reproduced is the ROM disk, the process proceeds from step m1 to step m2.
Go to. In step m2, the stock number 1 in memory 11
From the setting state of the ROM disk flag, it is determined whether the disk stored in the first storage area is the ROM disk. The disk that is stored in the first storage area is RO
If it is determined to be the M disk, the process proceeds from step m2 to step m3.

At step m3, it is judged whether or not the incompatibility flag for stock number 1 is in the set state of "1". The incompatibility flag is a flag that is set to the set state for a disk whose reproduction is not prioritized. Therefore, if the incompatibility flag is set to the set state in step m3, the process proceeds from step m3 to the storage area described later (step
m8). On the other hand, if it is determined in step m3 that the incompatibility flag is in the reset state, the process proceeds to step m3.
To step m4.

At step m4, it is judged that the disk D stored in the first storage area is a disk belonging to the type of ROM disk desired by the operator, and the reproducing operation is started. Simultaneously with the reproduction, the process proceeds from step m4 to step m5.

At step m5, it is judged whether or not the disk being reproduced is the target disk for the operator, and it is judged from the operation of a switch or the like not shown. For example, if neither switch is operated, it is determined that the disk D being reproduced is the target disk, and the process proceeds from step m5 to step m6. At step m6, the reproduction of the disk D on which the reproduction operation is being performed is continued, and then the processing advances to another processing. The other process is, for example, a subsequent process after the reproduction is completed.

On the other hand, in step m5, for example, when a certain switch is operated, the process determines that the disk D being reproduced is not the target disk, and the process proceeds from step m5 to step m7. At step m7, the reproduction operation of the disk is stopped, and the incompatibility flag corresponding to the stock number 1 indicating the storage area of the first stage is set to the set state of "1",
The process proceeds from step m7 to step m2.

In the above-mentioned step m2, it is judged from the ROM disk flag setting state of the memory 11 that the disk stored in the first-stage storage area is not the ROM disk, or in the above-mentioned step m3 the nonconformity flag is set. If it is determined that the set state is set, the process proceeds to step m8.

In step m8, the disk stored in the second storage area is stored in ROM by the same procedure as in step m2.
It is determined whether or not it is a disk. If it is determined to be a ROM disk, the process is performed from step m8 to step m3 to step m7 as described above, and if the incompatibility flag is set to the set state, the process is stored in the storage area described later. The process proceeds so as to make a determination for the disc that is present, and if the incompatibility flag is not set to the set state, a determination of the reproduction operation is made.

After that, when the desired type of disk does not exist up to the (N-1) th storage area, or even the desired type of disk is set, the incompatibility flag indicating the priority is set to the set state, and no priority is given. If the disk is present, the process proceeds to step m9, step m2, m8.
Make the same judgment as. If it is determined that the ROM disk does not exist in all storage areas, the process proceeds to step s9.
To other processing, the processing such as reproduction impossible is performed.

In addition, if all the non-conformance flags are set to the set state in each type of disc, the priority order circulates among the discs, and a particular type of disc tends not to be reproduced. Therefore, for example, when all the nonconformity flags of a specific type of disk are set to the reset state, all the nonconformity flags may be reset to the reset state, and a certain switch may be operated. By doing so, the incompatibility flag in any type of disk may be reset to the reset state.

As described above, according to this embodiment, a desired type of disk can be quickly reproduced from among a plurality of types of disks, and the operability of the reproducing apparatus is significantly improved. Further, by using the incompatibility flag, it is possible to further form a priority order with respect to each type of disk and further shorten the reproduction time of the most desired disk.

In this embodiment, two types of music discs and ROM discs are set as a plurality of types. However, as another embodiment, the mutual identification data can be set to a plurality of types, and for example, even in a music disc, by dividing by jianru (pops, jazz, forks, etc.), quick reproduction can be performed for each jeanru. The same effect as the embodiment can be obtained.

Further, in this embodiment, the auto-change function using a magazine in a compact disc is described. However, as another embodiment, in another disk-shaped recording medium or a linear or band-shaped recording medium such as a magnetic tape,
Even a recording medium reproducing apparatus having an auto-change function using a storage means can have the same effect as that of this embodiment.

Advantageous Effects of Invention According to the present invention, the mutual identification data for each type recorded in a plurality of types of recording media in the storage means mounted in the recording medium reproducing device is the storage position data for the storage means in the storage means. Since it is also stored in the storage means, the time required to select and reproduce a specific type of recording medium can be significantly shortened, and the operability of the recording medium reproducing apparatus is significantly improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an electrical configuration of a recording medium reproducing apparatus 1 which is an embodiment of the present invention, FIG. 2 is a diagram showing a storage state 15 of a memory 11, and FIG. 3 is a mutual identification of each disk D. FIG. 4 is a flow chart for explaining the control operation of storing data in the memory 11, and FIG. 4 is a flow chart for explaining the control of the reproduction operation of the disk D. 1 ... Recording medium reproducing device, 2 ... Magazine, 3 ... Magazine mounting section, 9 ... Pickup, 10 ... Information control circuit, 11 ... Memory, 12 ... Selection switch, 13 ... Selection control circuit, C, C1 to Cn …… storage area, D, D1 to Dn …… disk

Claims (1)

[Scope of utility model registration request] 1. A storage means for individually storing a plurality of types of recording media on which mutual identification data for each type is recorded, a reading means for reading the recorded contents of the recording medium, and a mutual storage medium in the storage means. When the storage unit stores the identification data together with the storage position data in the storage unit for the recording medium, and the control unit for controlling the storage unit, the control unit is instructed to select a specific type of recording medium. The recording medium reproducing apparatus, wherein the control means selects and reproduces a corresponding type of recording medium in the storage means based on the stored contents of the recording means.