Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal gain processing
Patent
1987-08-17
1989-09-12
Canney, Vincent P.
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal gain processing
369111, 369 50, 369 51, 369 47, 369 48, 369106, 369116, 369 54, G11B 7007
Patent
active
048666920
ABSTRACT:
A method and an apparatus for recording and reproducing information for use with an optical disk apparatus in which a pit edge recording method is used. According to the pit edge recording method, the leading edge and the trailing edge of a hole pit or a record domain generated during a recording operation are dealt with as information. During the recording, the recording pulse width and the recording power are corrected, and during the reproduction, the variation in the edge position is corrected.
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"Introduction to Video Disk and DAD" by Iwamura, Corona Publishing Co., pp. 212-215.
Maeda Takeshi
Saito Atsushi
Sugiyama Hisataka
Takasugi Wasao
Canney Vincent P.
Fournier Kevin
Hitachi , Ltd.
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