Data block deinterleaving and error correction system

Details Data block deinterleaving and error correction system Data block deinterleaving and error correction system

1989-06-28

1991-09-24

Beausoliel, Robert W.

Excavating

371 54, 371 401, 371 471, 371 65, G06F 1110

Patent

active

050519980

ABSTRACT:
A deinterleaving and error correction system which is advantageously utilized in a playback system of an optical recording disk apparatus. As each block of sector data, encoded for example with the Reed-Solomon error correction code with block interleaving, is read from the disk, the positions within the data block at which drop-out of the playback signal occurs are respectively stored in a memory in which the data symbols are also stored, with these drop-out positions being stored as error position data. Error correction processing is executed using the error position data in conjunction with the code words, enabling the maximum number of correctable errors for each sector to be substantially increased using a simple system configuration.

REFERENCES:
patent: 4059825 (1977-11-01), Greene
patent: 4835772 (1989-05-01), Peile
patent: 4858235 (1989-08-01), Matsuda
patent: 4916702 (1990-04-01), Berlekamp

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