Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1993-10-21
1995-08-01
Epps, Georgia Y.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
369 54, 369 47, 369 48, G11B 700
Patent
active
054385601
ABSTRACT:
An optical disk-shaped recording medium comprising a plurality of tracks, the tracks constituting blocks in the unit of a predetermined number, each of the blocks being provided with a data region and a first mapping region, a second mapping region being further provided on a center one of the entire tracks, each of the first mapping regions including mapping sectors and replacement sectors, the second mapping region including; a mapping information recording region and a replacement sector region for the first mapping regions of the whole of the blocks, the mapping sectors of each of the first mapping regions recording mapping information about bad sectors of the corresponding block thereon, the replacement sectors of each of the first mapping regions being replaced for the bad sectors of the corresponding block, and an apparatus and a method for recording/reproducing optical information using the optical disk-shaped recording medium.
REFERENCES:
patent: 4223347 (1980-09-01), Bouwhuis et al.
patent: 4925717 (1990-05-01), Tsukamura et al.
patent: 5111444 (1992-05-01), Fukushima et al.
patent: 5235585 (1993-08-01), Bish et al.
Edun Muhammad N.
Epps Georgia Y.
Hyundai Electronics Industries Co,. Ltd.
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