Recording medium, recording apparatus, and reading apparatus

Dynamic information storage or retrieval – Storage medium structure – Optical track structure

Reexamination Certificate

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C369S059230

Reexamination Certificate

active

11119457

ABSTRACT:
In a recording material, physical characteristic information of the recording medium, and more specifically, material information representing the material of the disc, is recorded. Accordingly, a recording apparatus and a reading apparatus easily and accurately determine the physical characteristics of the disc, thereby making it possible to provide suitable setting for performing an operation.

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patent: 0 210 629 (1987-02-01), None
patent: 0 288 114 (1988-10-01), None
patent: 1 049 095 (2000-11-01), None
Patent Abstracts of Japan, JP 62 016255, Jan. 24, 1987.
Patent Abstracts of Japan, JP 59 060742, Apr. 6, 1984.

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