Viterbi processor

Details Viterbi processor Viterbi processor

1994-03-02

1996-08-27

Bocure, Tesfaldet

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

371 43, H04L 2706

Patent

active

055508707

ABSTRACT:
A digital signal processor with an embedded error correcting coprocessor (ECCP) is disclosed. The ECCP provides soft symbol Viterbi decoded outputs which have the absolute value of the accumulated cost difference of competing states concatenated with the traceback bit or most significant bit of the next state.

REFERENCES:
patent: 4240156 (1980-12-01), Doland
patent: 4346473 (1982-08-01), Davis
patent: 4493082 (1985-01-01), Cumberton et al.
patent: 5065411 (1991-12-01), Muto
patent: 5134635 (1992-07-01), Hong et al.
patent: 5144644 (1992-09-01), Borth
"Digital Communications Fundamentals and Applications" Bernard Sklar, Prentice Hall, 1988, pp. 333-341.
Patent Abstracts of Japan vol. 012 No. 060 (E-584), 23 Feb. 1988 and JP-A-62 203427 (NEC Corp) 8 Sep. 1987 *Abstract*.
Patent Abstracts of Japan vol. 011 No. 113 (E-497), 9 Apr. 1987 and JP-A-61 261931 (Mitsubishi Electric Corp) 20 Nov. 1986, *Abstract*.
Patent Abstract of Japan vol. 014 No. 511 (E-0999), 8 Nov. 1990 and JP-A-02 211724 (Matsushita Electric Ind Co. Ltd) 23 Aug. 1990, *Abstract*.

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