Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Patent
1988-03-09
1990-06-26
Canney, Vincent P.
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
G11B 700
Patent
active
049378040
ABSTRACT:
An optical disk apparatus is adapted to record into and reproduce information from a plurality of blocks on an optical disk medium. The respective block on the optical disk medium has a preformat section which is continuously recorded with a plurality of ID information and a data recording section for recording information. The data recording section contains an information recording area, a recorded flag recording area and a post field. If the number of ID information detected never exceeds 2, then recording of the information into the corresponding block is inhibited, and the information is then recorded into a data alternative area instead.
REFERENCES:
patent: 4571716 (1986-02-01), Szerlip
patent: 4734901 (1988-03-01), Murakami
Canney Vincent P.
Kabushiki Kaisha Toshiba
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