Apparatus for decoding BCH code for correcting complex error

Details Apparatus for decoding BCH code for correcting complex error Apparatus for decoding BCH code for correcting complex error

1992-04-06

1995-05-30

Beausoliel, Jr., Robert W.

Excavating

371 391, 371 44, G11C 2900, H03M 1300, G06F 1110

Patent

active

054208734

ABSTRACT:
An apparatus for decoding a received BCH code signal for correcting a combined complex error is disclosed which includes a syndrome generating circuit for generating two n-bit syndromes corresponding to the received signal, a syndrome converting circuit for converting the two n-bit syndromes to a 2n-bit syndrome, a random error correcting circuit, a burst error correcting circuit, two combining circuits and output selecting circuit. The random error correcting circuit inputs the two n-bit syndromes and outputs a random error correction signal to one of the combining circuits and the burst error correcting circuit inputs the 2n-bit syndrome and outputs a burst error correction signal to the other of the combining circuits. The combining circuits combine the correction signals to the received BCH code signal. The output selecting circuit selectively outputs one of the combined signals from the combining circuits in accordance with the decoding conditions of the error correcting circuits and the result of comparison between the decoded and error-corrected signals from the combining circuits.

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S. Lin, D. J. Costello, Jr., "Error Control Coding: Fundamentals and Applications", Prentice Hall, Inc., pp. 280-282, 257-269, 1983.

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