Optical disk capable of disabling incompatible recorder

Details Optical disk capable of disabling incompatible recorder Optical disk capable of disabling incompatible recorder

2007-10-02

2007-10-02

Korzuch, William (Department: 2627)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

C369S275300

Reexamination Certificate

active

10230573

ABSTRACT:
An optical disk is compatible with one type of a recording apparatus which is designed to irradiate an optical beam onto the optical disk to form pits along the pregroove for actual recording of information. The optical disk is incompatible with another type of a recording apparatus which is designed to successively record the times of the test recording into a count area of the conventional optical disk. The optical disk has a test area corresponding to the test area of the conventional optical disk and a prepit area corresponding to the count area of the conventional optical disk, the prepit area being provisionally formed with prepits at least in a section corresponding to the predetermined section of the count area of the conventional optical disk so as to inhibit the other type of recording apparatus from conducting the test recording.

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patent: 01/27922 (2001-04-01), None
Kazukiko Honda□□Jan. 10, 2002□□U.S. Appl. No. 09/863,479.
European Patent Office, “Search Report,” (Nov. 17, 2006).

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