Viterbi decoding method and viterbi decoder

Details Viterbi decoding method and viterbi decoder Viterbi decoding method and viterbi decoder

1997-01-21

1999-08-31

Elmore, Reba I.

Excavating

371 44, 371 45, 371 46, 262341, 369 59, 375265, G06F 1110

Patent

active

059463295

ABSTRACT:
A Viterbi decoding method and decoder are provided for achieving a faster operation than the prior art. The Viterbi decoding method and decoder are arranged to determine the most approximate path on two-state state metrics and decode the data on the most approximate path. The Viterbi decoder includes registers 2 and 3 for reading two pieces of sample data, an adder 14 for adding two pieces of sample data read by the registers 2 and 3, and an arrangement located after the adder 14 for determining a path of each state transition by comparing the added result with a given identification of -1, 0 or 1.

REFERENCES:
patent: 4653374 (1987-03-01), Iba
patent: 5341387 (1994-08-01), Nuguyen
patent: 5488591 (1996-01-01), Kobayashi et al.
patent: 5602858 (1997-02-01), Kitaori

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