Decoding of BCH double error correction - triple error detection

Details Decoding of BCH double error correction - triple error detection Decoding of BCH double error correction - triple error detection

1983-09-15

1985-12-03

Atkinson, Charles E.

Excavating

G06F 1110

Patent

active

045569770

ABSTRACT:
Decoding of BCH multiple error correction code codewords with .alpha. as a primitive element of the finite field GF (2.sup.m) is accomplished by generating syndrome subvectors S.sub.1 from all column m-tuple .alpha..sup.k positions and syndrome subvectors S.sub.2 from all column m-tuple .alpha..sup.3K positions, generating a permutation of syndrome subvector S.sub.1 for each bit position on the codeword and then selecting those bit positions K where S.sub.1.sup.3 +S.sub.2 +QK=0 as the bit or bits in error.

REFERENCES:
patent: 3714629 (1973-01-01), Hong et al.
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patent: 4142174 (1979-02-01), Chen et al.
patent: 4320510 (1982-03-01), Kojima
patent: 4360916 (1982-11-01), Kustedjo et al.
patent: 4416010 (1983-11-01), Hibino et al.
patent: 4468769 (1984-08-01), Koga

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