JPH0896551A - Write protection method for information recording medium - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an environment suitable for protection of data already written on an information recording medium and management of the information recording medium. According to the present invention, a strong write-inhibition mechanism that cannot be easily rewritable after write-protection is set by a user or a seller of an information recording medium used in a computer or the like. , Protect the data on the information recording medium.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data protection method for an information recording medium, and more particularly to a data write protection method for a floppy disk used in a computer or the like.

[0002]

2. Description of the Related Art A floppy disk as an information recording medium used in a computer or the like is a method in which a user can reversibly and easily set writable and writable settings.

[0003]

However, such a conventional method has the following problems.

That is, in handling the information recording medium, data may be destroyed intentionally or intentionally, may be overwritten by an operation error, or may be rewritten by computer virus or the like, or may be destroyed. There was a problem that it was easy.

[0005]

According to the present invention, it is impossible to easily return to writable after setting the write-protection in the selection of the user or the seller of the information recording medium used in the computer or the like. A strong write-protection mechanism protects the data in the information storage medium.

[0006]

Since the data cannot be rewritable easily, the already written data can be guaranteed, and rewriting cannot be practically performed.

[0007]

EXAMPLE An example of the present invention will be described in detail below.

FIG. 1A is a mechanism diagram when the present invention is applied to a write protection mechanism of a floppy disk.
(b) shows an operation diagram in a write-enabled and write-protected setting state.

In FIG. 1 (a), reference numeral 1 is a tab that slides left and right to open and close the write-inhibiting hole, and has a spring at its tip and is a protrusion for fixing the writable and writable positions. Have. Reference numeral 2 denotes a holder for holding the tab, which has two kinds of protrusions for fixing the writable and writable positions inside. Reference numeral 3 is a tab hole for guiding the slide of the tab. Reference numeral 4 denotes a write-protected hole. When the tab closes the write-protected hole, the write-enabled state is set. When the tab is slid to open the write-protected hole, the write-protected state is set. In FIG. 1 (b), 5 is a writable state. 6 can ride on the protrusion from 5 and return to 5 or move to 7 described below. 7 is 6
It is a state where it is impossible to return to 6 by riding on the protrusion from.

Although the above-described embodiment is applied to the write-inhibition mechanism of the floppy disk, it goes without saying that the present invention can be applied to the write-inhibition mechanism of the magneto-optical recording disk.

In the above description, the method of fixing the write-inhibition mechanism of the information recording medium has been described, but the present invention is not limited to this, and a strong write-inhibition mechanism that cannot be easily rewritable. It is a write-protection law that has the following, and can be realized by other methods. For example, FIG. 2 shows two examples of methods for fixing the write-protection hole in an open state. 8 is a method of removing the structure 11 that closes the write-protection hole, and 9 is a method of fixing the structure 12 that closes the write-protection hole by folding or the like.

[0012]

As described above, according to the present invention, it is possible to protect the data already written on the information recording medium. Further, it provides an environment suitable for managing the information recording medium, for example, managing the master medium. In addition, system software
Provide a suitable environment for protection and guarantee of commercial software.

[Brief description of drawings]

FIG. 1 is a structural diagram and an operation diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing another embodiment of the present invention.

[Explanation of symbols]

1 ... Tab, 2 ... Holder, 3 ... Tab hole, 4
... write-protected hole, 5 ... write-enabled setting, 6 ...
Intermediate setting, 7 ... Write protect setting, 8 ...
A method of removing the structure that blocks the write-protection hole, a method of fixing the structure that blocks the write-protection hole, such as by folding the structure.

Claims (1)

[Claims] 1. An information recording medium in which a disk-shaped recording medium having a hub is provided in a protective hard case having head windows for both reading and writing heads on both sides, at the choice of the user or the seller. In addition, the above-mentioned protective hard case has a write-inhibit hole capable of write-protecting data, and has a write-inhibit mechanism that cannot be re-writable once it is write-protected for data protection. Write protection method.