Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Patent
1997-12-22
2000-05-02
Chung, Phung M.
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
714746, H04M 1300
Patent
active
060584998
ABSTRACT:
Reed-Solomon encoded data read from a CD-ROM, DVD-ROM, or other recording or transmission source is error corrected at high speed in an apparatus that employs a pair of byte-wide error correcting sub-circuits operating substantially in parallel. An MSB plane of a sector of received Reed-Solomon data is processed in one error correcting circuit while an LSB plane of the same sector is processed in the other circuit. Errors are corrected in each sub-circuit as may be necessary, and selection circuitry selects the corrected data, or non-corrected data, as appropriate, for each plane, and then combines the selected data to form the word-wide output data for transmission, e.g. to a host processor. The operation is pipelined and, although only one error is corrected at a time, the invention provides word-wide, error-corrected data at a data rate only a few clock cycles slower than prior art byte serial EC technology, so the effective transmission rate to the host is substantially improved.
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Chung Phung M.
Samsung Electronics Co,. Ltd.
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