Soft decision Reed-Solomon decoder

Details Soft decision Reed-Solomon decoder Soft decision Reed-Solomon decoder

1987-10-26

1989-04-11

Smith, Jerry

Excavating

G06F 1110

Patent

active

048212687

ABSTRACT:
In a Reed-Solomon Decoder, each byte of a received codeword is matched to the closest resembling one of a set of allowed symbols and assigned a certain reliability, reflecting the degree of resemblance. The symbols thus matched are arranged in descending order to reliability to form a virtual codeword, the first K symbols being virtual message bytes and the remaining r symbols being virtual check bytes. The virtual codeword is then decoded using an algorithm which produces a series of iterative approximations to the transmitted codeword. The approximation most closely resembling the received codeword is selected as the corrected codeword.

REFERENCES:
patent: 4322848 (1982-03-01), Snyder
patent: 4328582 (1982-05-01), Battail
patent: 4754458 (1988-06-01), Dornstetter
patent: 4763331 (1988-08-01), Matsumoto

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