JPH0636512A - Optical disk and information control system thereof - Google Patents

Abstract

PURPOSE:To surely perform an information control of a disk without requiring labor and time. CONSTITUTION:A disk discriminating pattern 2 for the control of disk information is provided by printing at the inner peripheral part of disk. The disk discriminating pattern is formed with a bar code, and the bar code is printed on the inner periphery than the adhered part of a hub 3 at the side of a recording film surface of the disk, then the transparent hub 3 is mounted thereon by a transparent adhesive to enclose the printed disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc and its information management system, and more specifically, it manages information such as an optical disc for recording, reproducing, and erasing by using a laser beam and a serial number, a manufacturing condition, and inspection data. Information management system.

[0002]

2. Description of the Related Art Optical discs have come into widespread use in recent years because of their large recording capacities and their access speeds are much faster than magnetic tapes. There are three types of optical discs: a read-only type such as a CD, a write-once type that can be written only once, and a rewritable type that can be rewritten. Management of optical discs with such characteristics is
It is important from the point of view of managing the disc serial number, manufacturing conditions, inspection data and other information from the manufacturer side, and from the point of view of the disc library from the user side.

4A and 4B are views showing a conventional optical disk, in which 11 is a recording area, 12 is a hub, and 1 is a recording medium.
Reference numeral 3 is a disc identification number, and 14 is a recording film. On the inner peripheral portion of the recording area 11, the manufacturing date, lot number, etc. of the disc for information management are printed in numbers. In such a conventional technique, the disc has been identified by a method of printing the manufacturing date, the lot number, etc. on the inner peripheral portion of the disc, but it is therefore difficult to read the information as a signal by a machine, When people try to read,
There is a possibility that it may be misread and it will take time and effort. Moreover, the user cannot use the printed number or the like. Therefore, from the user side, the disc number and the classification of data are recorded on the label of the disc cartridge, but this method limits the amount of information and is time-consuming. Further, the number for disc identification is shown in FIG.
Since it is printed on the surface of the disc as in the above, there is a possibility that the disc may become faint, dirty, or disappear, making it impossible to distinguish.

[0004]

It is an object of the present invention to provide an optical disc and an information management system therefor which are capable of performing reliable disc management over a long period of time without any trouble in view of the above-mentioned circumstances. It was made.

[0005]

In order to achieve the above object, the present invention provides (1)
A disc identification pattern capable of managing information data is provided on the inner peripheral portion of the substrate. Further, (2) the information data is a disc serial number, production conditions, inspection data, etc., and the disc identification pattern is It is a bar code, and further, (3) in (1) or (2) above,
The disc identification pattern is printed on the recording film surface side of the inner periphery of the disc, and a hub is attached over the printing to encapsulate the printed disc identification pattern, or (4) the inner periphery of the substrate And an optical disc provided with a disc identification pattern capable of managing information data, and a drive unit having a reading unit for reading the information data of the disc identification pattern of the optical disc, and performing information management of the optical disc. (5) In (4) above, an optical disk recording / reproducing means having a function of reading the information data of the disk identification pattern is provided. Hereinafter, description will be given based on examples of the present invention.

FIG. 1 is a block diagram for explaining an embodiment of an optical disk according to the present invention, in which 1 is a recording area,
Reference numeral 2 is a disc identification pattern (bar code), and 3 is a hub. A disc identification pattern 2 is provided on the inner periphery of the recording area 1 of the optical disc. The disc identification pattern 2 uses a bar code, and a hub is attached on the bar code. That is, the disc identification pattern 2 is printed on the inner circumference of the groove of the disc instead of the numbers for disc management, and the disc drive device is equipped with a means for reading the disc identification pattern so that the disc identification pattern can be easily detected. To do so. Further, the disc identification pattern can be easily detected by the optical disc recording / reproducing apparatus equipped with means for reading the disc identification pattern. The disc identification pattern is a bar code, the disc identification pattern is printed on the inner periphery of the adhesive portion of the hub on the recording film side of the disc, and a transparent hub is attached with a transparent adhesive from above to print the disc identification pattern. A printed disc can be enclosed.

In the optical disc shown in FIG. 1, the disc identification pattern of the bar code 2 is radially printed on the inner periphery of the bonded portion of the hub 3 on the recording film side. The printed disc identification pattern is enclosed by adhering the transparent hub 3 to the substrate 5 with the transparent adhesive 4 as shown in FIG. Therefore, the disc identification pattern by the bar code is covered, protected from the risk of scratches and dirt, and semipermanently identified. A device for reading the disc identification pattern is provided in the optical disc recording / reproducing device, and is located on the inner periphery of the bonded portion of the hub. By rotating the disc, the pattern can be read and collated with the disc information stored in the computer connected to the optical disc recording / reproducing apparatus.

FIG. 3 is a block diagram of an optical disc information management system according to the present invention. In the figure, 21 is an optical disc, 22 is a hub, 23 is a motor, 24 is a disc identification pattern read-only optical pickup, 25 is a signal processing system, and 26 is a signal processing system. Is a computer, 27 is a display, and 28 is a storage device. Since the disc identification pattern is located inside the hub, the pickup cannot reach such an inner peripheral portion in a normal optical disc recording / reproducing apparatus. Therefore, an optical pickup 24 dedicated to reading the disc identification pattern is provided at a position inside the hub 22. The information of the disc identification pattern goes from the optical pickup 24 to the computer 26 through the signal processing system 25, and the storage device 2
The information stored in FIG. 8, that is, the manufacturing conditions and shipping date of the disc from the manufacturer side, and the contents of the disc from the user can be retrieved and confirmed on the display 27 or the like.

[0009]

As is apparent from the above description, the present invention has the following effects. (1) In the optical disc of the first aspect, since the disc identification pattern is printed instead of the numbers, the information can be easily read by a machine as a signal. (2) In the optical disc of the second aspect, since the disc identification pattern by the bar code is printed, it is easy to mechanically read the information as a signal. (3) In the optical disk of claim 3, since the disk identification pattern is sealed with the hub and the adhesive, it can be identified semipermanently. (4) In the optical disc information management system according to the fourth aspect, since the disc identification pattern is provided, the reading can be surely performed and no trouble is required. (5) In the optical disc information management system according to the fifth aspect, since the disc identification pattern reading function is provided, the disc information can be utilized for recording and reproduction.

[Brief description of drawings]

FIG. 1 is a configuration diagram for explaining an embodiment of an optical disc according to the present invention.

FIG. 2 is a diagram showing how a disc identification pattern of the present invention is enclosed.

FIG. 3 is a configuration diagram of an optical disc information management system according to the present invention.

FIG. 4 is a diagram showing a conventional optical disc.

[Explanation of symbols]

1 ... Recording area, 2 ... Disc identification pattern (bar code), 3 ... Hub.

Claims (5)

[Claims] 1. An optical disc, wherein a disc identification pattern capable of managing information data is provided on an inner peripheral portion of a substrate. 2. The information data is a disc serial number,
The optical disc according to claim 1, wherein the optical disc is a manufacturing condition, inspection data, and the like, and the disc identification pattern is a bar code. 3. The printed disc identification pattern is enclosed by printing the disc identification pattern on the recording film surface side of the inner peripheral portion of the disc and attaching a hub over the printing. Item 1. The optical disc according to Item 1 or 2. 4. An optical disc provided with a disc identification pattern capable of managing information data on an inner peripheral portion of a substrate,
An optical disc information management system comprising: a drive unit having a reading unit for reading information data of a disc identification pattern of the optical disc, and performing information management of the optical disc. 5. The optical disc information management system according to claim 4, further comprising an optical disc recording / reproducing unit having a function of reading the information data of the disc identification pattern.