JPH07153235A - Disk control system - Google Patents

Abstract

PURPOSE:To reproduce a disk in prescribed order only by putting the disk in a reproducing device by sticking a resealable seal to a nonrecorded surface of the disk and reading out disk control information recorded in this seal. CONSTITUTION:The resealable seal 2 is stuck to a nonrecorded surface of a compact disk 1. When this compact disk 1 is set, disk information is read out of a reading device 9, and this is stored in a storage device 11. Then, an optical pickup 4, a spindle motor 3 and a slide motor 5 are controlled by a CPU 8 through a signal processing circuit 6 and a servo circuit 7, and data is reproduced according to order stored in the storage device 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc reproducing apparatus control system for reproducing data from a signal recorded on a disc-shaped recording medium.

[0002]

2. Description of the Related Art A compact disc reproducing device is shown as an example of a conventional disc reproducing device.

FIG. 2 is a block diagram showing a conventional disc reproducing apparatus.

In FIG. 2, reference numeral 1 is a compact disc as a record carrier.

A spindle motor 3 rotates the compact disc 1 at a constant linear velocity or the like.

An optical pickup 4 takes out data recorded on the disk as an analog reproduction signal.

A signal processing circuit 6 reproduces digital data and audio data from an analog reproduction signal output from the optical pickup 4 and outputs the reproduced data.

A servo circuit 7 controls the optical pickup 4, the spindle motor 3, and the slide motor 5.

A CPU 8 controls the signal processing circuit 6, the servo circuit 7 and the like.

Reference numeral 10 denotes a control switch for inputting control commands for reproduction, stop, fast-forward, etc., as well as for specifying the reproduction order.

A storage device 11 stores the reproduction order input from the control switch 10.

A procedure for performing program reproduction, that is, data reproduction in a designated order, in this compact disc reproducing apparatus will be described. When the compact disc 1 is set, first the reproduction order is input from the control switch 10 and stored in the storage device 11. Next, the CPU 8 passes the signal processing circuit 6 and the servo circuit 7 to the optical pickup 4, the spindle motor 3,
The slide motor 5 is controlled to reproduce the data according to the order stored in the storage device 11.

[0013]

When performing program reproduction in a conventional compact disc reproducing apparatus, that is, data reproduction in a specified order, it is necessary to input the order of reproduction from the control switch as described above. I had to re-enter the playback order every time I replaced the compact disc.

The object of the present invention is to attach a sticker which can be stuck or peeled off to the non-recording surface of the disc, and the disc control information recorded on the sticker allows the disc to be played back in a predetermined order simply by inserting it into the playback device. It is to provide a control system of a disc reproducing apparatus for performing the above.

Another object of the present invention is to attach a sticker that can be stuck or peeled off to the non-recording surface of the disc,
Another object of the present invention is to provide a control method of a disc reproducing apparatus which can prohibit reading of data other than predetermined data by the disc control information recorded on the sticker.

[0016]

In order to solve the above problems, the following technical means is adopted in the control system of the disk reproducing apparatus of the present invention.

(1) A sticker that can be stuck or peeled off is stuck to the non-recording surface of the disc.

(2) A reading device for reading the disc control information recorded on the sticker is provided.

(3) A control device is provided for performing reproduction in order according to the read disc control information.

[0020]

In the present invention, a sticker that can be stuck or peeled off is stuck on the non-recording surface of the disc, and the reproduction is performed according to the disc control information recorded on the sticker.

Therefore, it is possible to provide a control system of the disc reproducing apparatus which reproduces the discs in a predetermined order only by inserting the discs into the reproducing apparatus.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention.

In FIG. 1, reference numeral 1 is a compact disc as a record carrier. Reference numeral 2 denotes a sticker that can be attached or peeled off, and disc control information is recorded by an optically readable bar code or the like. In the disc control information, for example, data numbers are recorded in the order of reproduction.

FIG. 3 is a block diagram showing the disc reproducing apparatus of the first embodiment of the present invention.

In FIG. 3, 1 and 2 are the same as in FIG. 1, and 3 to 8 are the same as in FIG.

A reading device 9 reads the disc information recorded on the sticker 2.

A storage device 11 stores the disk control information input from the reading device 9.

FIG. 4 is a flow chart showing the operation of the disc reproducing apparatus of the first embodiment of the present invention. The procedure of data reproduction in FIG. 3 will be described below with reference to this flowchart.

When the compact disc 1 is set,
The spindle motor 3 is rotated, the slide motor 5 is controlled, and the TOC (Table Of Content) from the optical pickup 4 is controlled.
The contents of s) are read (step 41).

The disc control information of the sticker 2 is read from the reading device 9 and stored in the storage device 11 (step 42). The step 42 may be performed when the optical pickup 4 is reading anywhere on the inner and outer circumferences as long as the disc control information can be read from the reading device 9. Also, step 4
Either step 1 or step 42 may be performed first, or both may be performed simultaneously.

The read disk control information is checked. For example, if there is an abnormality such that the data number designated by the disk control information does not exist in the TOC, the process ends as an error. Also, if there is no disk control information, the process ends (step 43).

The CPU 8 controls the optical pickup 4, the spindle motor 3, and the slide motor 5 via the signal processing circuit 6 and the servo circuit 7 to reproduce the data in the order stored in the storage device 11 (step 4).
4).

With the above-described structure, the disc control information recorded on the sticker can be read by simply inserting the disc into the reproducing device, whereby the disc can be reproduced in a predetermined order.

If there is data that is not desired to be read, it is possible to prohibit reading the data by not recording the data number in the disc control information.

In this embodiment, the disc control information on the sticker is read by the reading device, but it can be read by using an optical pickup.

Further, by providing a plurality of reading devices or by providing position control means of the reading devices, it is possible to read the disc control information of a plurality of tracks.

FIG. 5 shows a second embodiment of the present invention.

In FIG. 5, reference numeral 1 is a compact disc as a record carrier. Reference numeral 12 denotes a sticker that can be attached or peeled off, and disk control information is recorded by an optically readable bar code or the like. Seal 1
A seal piece 121 on which various disc control information is recorded is prepared in 2, and disc control can be performed by combining these.

FIG. 6 shows a third embodiment of the present invention.

In FIG. 6, reference numeral 1 is a compact disc as a record carrier. 13 is a sticker that can be attached or peeled off. By recording an optically readable bar code or the like at a predetermined position on the sticker 13 with the recording pen 15, it is possible to record the disc control information and perform disc control based on the disc control information.

FIG. 7 shows a fourth embodiment of the present invention.

In FIG. 7, reference numeral 1 is a compact disc as a record carrier. 14 is a sticker that can be attached or removed. By recording or erasing a predetermined position of the sticker 14 with the recording pen 15, the disc control information is recorded, and the disc control can be performed based on the disc control information.

FIG. 8 shows a fifth embodiment of the present invention.

In FIG. 8, 1 is a compact disc as a record carrier. Reference numeral 16 is a magnetic sticker that can be attached or removed. Disk control information can be recorded on the magnetic seal 16, and disk control can be performed based on this disk control information.

FIG. 9 is a block diagram showing a disk reproducing apparatus according to the fifth embodiment of the present invention.

In FIG. 9, 1 and 16 are the same as those in FIG. 8 and 3 to 8 are the same as those in FIG.

A control switch 17 is used to input disk control information such as the reproduction order.

A writing / reading device 18 writes the disc control information input from the control switch 17 on the magnetic seal 16. Further, the disk control information is read from the magnetic seal 16.

A storage device 11 stores the disk control information input from the writing / reading device 18.

A procedure for reproducing data in this compact disc reproducing apparatus will be described. When the compact disc 1 is set, first the reproduction order is input from the control switch 17, and this is input to the writing / reading device 18
Is written on the magnetic seal 16.

When the compact disc 1 in which the disc control information is written in this way is set, the disc information is read from the reading device 9 and is read out from the storage device 1.
Store in 1. Next, the CPU 8 controls the optical pickup 4, the spindle motor 3, and the slide motor 5 via the signal processing circuit 6 and the servo circuit 7, and the storage device 11
The data is reproduced according to the order stored in.

With the above configuration, once the disc control information is written on the magnetic sticker, the disc information recorded on the magnetic sticker can be read out just by inserting the disc into the reproducing device, and the disc can be read in a predetermined order. Can be played back.

Further, if there is data that is not desired to be read, it is possible to prohibit reading the data by not recording the data number in the disc control information.

[0055]

Since the present invention is configured as described above, it has the effects described below.

A sticker that can be stuck or peeled off is stuck on the non-recording surface of the disc, and the disc control information recorded on this sticker is read out, so that the disc can be reproduced in a predetermined order only by inserting it into the reproducing device. You can

If there is data that is not desired to be read, it is possible to prohibit reading the data by not recording the data number in the disc control information.

[Brief description of drawings]

FIG. 1 is an external view showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional disc reproducing apparatus.

FIG. 3 is a block diagram showing a configuration of a disc reproducing apparatus according to a first embodiment.

FIG. 4 is a flowchart showing the operation of the disc reproducing apparatus in the first embodiment.

FIG. 5 is an external view showing a second embodiment.

FIG. 6 is an external view showing a third embodiment.

FIG. 7 is an external view showing a fourth embodiment.

FIG. 8 is an external view showing a fifth embodiment.

FIG. 9 is a block diagram showing the configuration of a disk reproducing device according to a fifth embodiment.

[Explanation of symbols]

1 ... Compact disc, 2,13,14 ... Seal, 3
... Spindle motor, 4 ... Optical pickup, 5 ... Slide motor, 6 ... Signal processing circuit, 7 ... Servo circuit, 8 ... C
PU, 9 ... Reading device, 11 ... Storage device, 16 ... Magnetic seal.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hirofumi Tsujimura 292 Yoshida-cho, Totsuka-ku, Yokohama-shi Kanagawa Stock Company Hitachi Media Media Research Laboratories

Claims (4)

[Claims] 1. A disc reproducing apparatus for reproducing data from a signal recorded on a disc-shaped recording medium, wherein disc control information is recorded on a sticker which can be stuck or peeled off, and a non-recording surface of the disc-shaped recording medium. A disc control system, characterized in that the disc reproducing device is controlled based on the disc control information recorded on the sticker. 2. The disk control system according to claim 1, wherein the disk control information is composed of a bar code. 3. The disk control method according to claim 1, wherein the disk control information is configured by painting or erasing a predetermined position of the sticker. 4. The disc is a magnetic sheet, write / read means for the magnetic sheet is provided, the disc control information is recorded on the magnetic sheet by the write / read means, and the disc control information recorded on the magnetic sheet. 2. The disc control system according to claim 1, wherein the writing / reading means reads out the data, and controls the disc reproducing device based on the disc control information.