JPS63129558A - Information recording and reproducing device - Google Patents

Abstract

PURPOSE:To enable an access to a dedicated reproducing are physically at the time of offering a product and to disable the copying of information, by using an optical disk provided with a recording and reproducing area and also the dedicated reproducing area capable of writing the information at time of generation on the same recording medium. CONSTITUTION:The dedicated reproducing area 11a and the recording and reproducing area 11b are arranged on the recording medium 11 used in a recording and reproducing device, and the read and write of the information is permitted on the area 11b when it is used. Also, the area 11a on the other side is set as an area on which the write of the information is permitted at the time of generation, and it is prohibited at the time of using. The information in the areas 11a and 11b are read out by an information reproducing means in the recording and reproducing device, and the information is written on the area 11b an information recording means 13. And when the information is recorded on the recording medium 11 and is offered, a part of the information desired to prohibit the copying is recorded on the dedicated reproducing are sector 25 of the dedicated reproducing area 21 at the time of generation, and an instruction is written on the recording and reproducing area sector 26 of the recording and reproducing area 22.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to an information recording and reproducing device used for secondary storage of computer equipment.

2. Description of the Related Art Conventional 611 information recording and reproducing devices include those that use magnetic tapes, magnetic disks, magnetic drums, optical disks, etc. Basically, the entire information recording and reproducing area on the recording medium is used as the recording and reproducing area. It was used to write and read data.

FIG. 3 shows a block diagram of this conventional information recording and reproducing apparatus, in which 31 is a recording medium such as a magnetic disk or optical disk whose entire recording area is a recording and reproducing area, and 32 is an information recording area on the recording medium. 33 is an information recording means for writing information into an information recording area on a recording medium.

Writing and reading of information in the information recording/reproducing apparatus configured as described above may be performed "always" or "always" if the recording medium 31 is "repeatedly recording/reproducible type" depending on the type of the recording medium 31.
If it is a "write-once type", there are differences such as "only once", but basically both writing and reading are performed in the same way for the entire information recording area of the recording medium 31.

Problems to be Solved by the Invention However, when the entire recording medium 31 is used as a recording/playback area with the above-mentioned configuration, if an attempt is made to illegally copy the information recorded on the recording medium 31, normal information will be Using a plurality of recording and reproducing apparatuses, the information on the recording medium 31 is reproduced by the information reproducing means 32 of one information recording and reproducing apparatus, and the information on the recording medium 31 is reproduced by the information recording means 33 of the other information recording and reproducing apparatus, respectively. The problem was that it was easy to make a copy by recording the data on a computer.

In view of this point, it is an object of the present invention to provide an information recording/reproducing device in which the information recorded on the recording medium 31 cannot be illegally copied.

Means for Solving All Problems The present invention provides a recording and reproducing area in which information can be recorded and reproduced when in use, and a reproducing-only area in which information can be recorded at the time of generation and only information can be reproduced at the time of use. an information recording means for recording information in a recording/reproducing area on the recording medium using a recording medium consisting of; and for reproducing information recorded in the recording/reproducing area and the reproduction-only area on the recording medium. This is an information recording and reproducing device equipped with an information reproducing means.

Effects of the Invention According to the above-described configuration, when a recording medium is provided with information that should not be copied, when the recording medium is generated, a read-only area in which information cannot be written during use is physically accessed. By recording information in this way, illegal copying is prohibited, but when simply reproducing information, it is possible to read information using an information reproducing means without being aware of the difference in recording area. When a user writes information after the recording medium is generated, the user can write information to the recording/reproducing area in the same manner as in conventional information recording/reproducing apparatuses.

Embodiment FIG. 1 shows a block diagram of an information recording and reproducing apparatus in an embodiment of the present invention. In Figure 1, 11
12 is a recording medium on the recording medium 11 consisting of a read-only area 11& in which information can be written during generation but not in use, and a recording/reproduction area 11b in which information can be freely written and read during use. 13 is an information recording means for writing information into the recording/reproducing area 11b on the recording medium 11.

The operation of the information recording/reproducing apparatus of this embodiment configured as described above will be explained below.

As shown in FIG. 2, the recording medium 11 is divided into a read-only area 21 and a recording/playback area 22, each of which is uniformly divided into blocks of a certain size as an information recording area. This is done in blocks. Usually, this block often corresponds to a sector, so it will be explained as a sector from now on.

When recording information on a recording medium and providing it, the provider records part of the information that should not be copied into a sector of the read-only area 21 when creating the recording medium, and accesses the physical address of that sector. When a user attempts to copy the information on the entire recording medium in order to make a copy of the recording medium, the information recorded in the recording and reproduction area 22 is written in the sector of the recording and reproduction area 22. The data is reproduced by the means 12 and copied by the information recording means 13 to the sector at the same address as the original recording medium, but the information recorded in the reproduction-only area 21 cannot be written by the information recording means 13 to the reproduction-only area 21. Therefore, copying to a sector at the same address is impossible. Therefore, when an attempt is made to reproduce the information on the copied recording medium by the information reproduction means, the command recorded in the sector 26 of the recording and reproduction area 22 accesses the sector 23 of the reproduction-only area 21 where no information exists, and the information playback becomes impossible.

As described above, according to this embodiment, information is recorded in such a way that sectors of the read-only area are physically accessed, and by making it impossible to write information to the read-only area, the information Illegal copying can be prevented.

As described in detail, the present invention uses an optical disc that has both a recording/playback area similar to a conventional recording medium and a playback-only area in which information can be written at the time of generation on the same recording medium. By recording information in such a way that the read-only area is physically accessed at the time of product provision, and by using the information recording and reproducing device of the present invention, illegal copying of information is impossible.The practical effect is great. .

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an information recording/reproducing apparatus according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing how a recording medium is divided into blocks, and FIG. 3 is a block diagram of a conventional information recording/reproducing apparatus. 11...Recording medium, 11a...Reproduction-only area, 11kl...Recording/reproduction area, 12...
... Information reproducing means, 13 ... Information recording means, 21 ... Reproduction-only area, 22 ... Recording and reproduction area, 23 ...... Sector. address, 24
...Information recording area, 26...Reproduction-only area sector, 26...Recording and reproduction area sector, 3
1... Recording medium, 32... Information reproducing means, 33... Information recording means. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] For recording media that have a read-only area where information can be written when the recording medium is created, but where information cannot be written during use, and a recording/playback area where information can be freely read and written during use, An information recording and reproducing device characterized in that it comprises an information reproducing means for reading information from both the reproduction-only area and the recording and reproducing area, and an information recording means for writing information into the recording and reproducing area. Device.