Storage medium having read/write storage region and read-only st

Details Storage medium having read/write storage region and read-only st Storage medium having read/write storage region and read-only st

1991-11-07

1993-08-31

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

3692753, 369 59, G11B 1304

Patent

active

052415317

ABSTRACT:
A storage medium provided with a read/write storage region, another read-only storage region and a preliminary storage region for storing data to be stored in defective portions, which are defective in a storing function, of the read/write storage region and the read-only storage region. Thereby, defective portions can suitably be effected even when a read/write storage region and a read-only storage region coexist in a storage medium.

REFERENCES:
patent: 4811124 (1989-03-01), Dujari et al.
patent: 4833663 (1989-05-01), Satoh et al.
patent: 4953122 (1990-08-01), Williams
patent: 5075804 (1991-12-01), Deyring
patent: 5111444 (1992-05-01), Fukushima et al.

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