JPH01296362A - System for protecting secrecy of recording medium - Google Patents

Abstract

PURPOSE:To prevent the access of a third person to data information by providing the 1st and 2nd recording media which respectively record address information and data information so as to separate the two kinds of information from each other. CONSTITUTION:Upon inputting an instruction outputted from a CPU 2, a control section first reads out address information from the 1st recording medium 4 and tentatively stores the information in a storing section 7 in the case of reading out data information. Then the section 6 reads out the data information from the 2nd recording medium 5 in accordance with the address information stored in the storing section 7 and sends the read-out data information to the CPU 2 through an input-output interface section 3. At the time of recording data information, on the other hand, the section 6 first stores received address information and the data information in the storing section 7. Then the section 6 reads out the address information stored in the section 7 and registers the address information in the medium 4. Thereafter, the section 6 reads out the data information stored in the section 7 and writes the data information in the medium 5 in accordance with the simultaneously read-out address information. Thus the access of a third person to the data information can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a security protection system for a recording medium, and particularly to a security protection system for a recording medium that separates address information and data information.

[Conventional technology]

Conventionally, it has not been considered to separate address information and data information due to their mutual relationship, so a method has been adopted in which they are recorded on the same medium.

Therefore, there has been no good method for protecting the security of the recording medium other than physical security protection for the recording medium or measures such as taking into account protection during copying.

[Problem to be solved by the invention]

The conventional security protection system for recording media described above is a system in which address information and data information are recorded on the same medium. However, there is a problem in that the content is easily exposed to the eyes of others.

An object of the present invention is to provide a security protection system for a recording medium that can prevent third parties from accessing data information by separating address information and data information.

[Means to solve the problem]

A security protection system for a recording medium of the present invention is a security protection system for a recording medium controlled by a central processing unit, in which a first storage medium that stores address information, a second storage medium that stores data information, a control unit that controls the first recording medium and the second recording medium to perform recording and reading; a storage unit that temporarily stores the address information read by the control unit for use in control; The configuration includes an input/output interface unit that connects the central processing unit and the control unit.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

The recording device 1 records address information and data information. The central processing unit 2 controls the recording device 1 . The input/output interface unit 3 connects the central processing unit 2 and the recording device 1. The recording device 1 has a first recording medium 4 that stores address information, a second recording medium 5 that stores data information, and receives commands from the central processing unit 2. The control unit 6 includes a control unit 6 that controls the recording medium 5 of No. 2 and performs recording and reading, and a storage unit 7 that temporarily stores address information read by the control unit 6 for use in control.

Next, the operation will be explained.

When the control unit 6 receives a command from the central processing unit 2,
When reading data information, first the first recording medium 4
The address information is read out from the second recording medium 5 according to the address information stored in the storage unit 7. Then, the data information is read out from the second recording medium 5 according to the address information stored in the storage unit 7. The data information is sent to the central processing unit 2 via the input/output interface unit 3. When recording data information, firstly, the received address information and data information are stored in the storage section 7. Next, the address information stored in the storage section 7 is read out and stored on the first recording medium 4. Register. Next, read the data information stored in the storage unit 7,
The second recording medium 5 according to the address information read at the same time.
Write to.

〔Effect of the invention〕

As explained above, the present invention separates address information and data information for each recording medium so that they can be stored separately, making it possible to more completely protect the confidentiality of the data. This has the effect of preventing third parties from accessing information.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. 1... Recording device, 2... Central processing unit, 3... Input/output interface section, 4...
...first recording medium, 5...second recording medium,
6...Control unit, 7...Storage unit. JJ diagram

Claims (1)

[Claims] In a security protection system for a recording medium controlled by a central processing unit, a first recording medium storing address information;
a second recording medium that stores data information; a control unit that controls the first recording medium and the second recording medium to perform recording and reading; A security protection system for a recording medium, comprising: a storage section that temporarily stores address information; and an input/output interface section that connects the central processing unit and the control section.