Data recording and reproducing system with error correction capa

Details Data recording and reproducing system with error correction capa Data recording and reproducing system with error correction capa

1984-08-23

1987-10-06

Cardillo, Raymond F.

Excavating

371 39, 369 59, 360 32, G06F 1112, H03M 1322, G11B 509

Patent

active

046988106

ABSTRACT:
An optical disk system. Each of data blocks supplied from a higher ranked unit is divided into a plurality of code words, each of which is added with an error correction code to be subsequently recorded on an optical disk. In reproduction, each of the data blocks read out from the optical disk is subjected to error correction on the code-word basis. Information indicative of the presence or absence of data error in each code word and the presence or absence of the error incapable of being corrected is sent to the higher ranked unit together with the reproduced data. In this way, the code word suffering the uncorrectable error is excluded from data of the other code words which can be validly utilized by the high ranked unit.

REFERENCES:
patent: 4211997 (1980-07-01), Rudnick et al.
patent: 4249253 (1981-02-01), Gentili et al.
patent: 4319356 (1982-03-01), Kocol et al.
patent: 4371930 (1983-02-01), Kim
patent: 4380071 (1983-04-01), Odake
patent: 4400810 (1983-08-01), Ive
patent: 4408326 (1983-10-01), Takeuchi et al.

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