Branchmetric calculation circuit in a viterbi decoder

Details Branchmetric calculation circuit in a viterbi decoder Branchmetric calculation circuit in a viterbi decoder

1995-12-15

1998-09-15

Vo, Don N.

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

375341, 371 437, H04L 512, H04L 2302

Patent

active

058090797

ABSTRACT:
A branchmetric calculation circuit in a Viterbi decoder capable of fast decoding with a small circuit scale. Square calculation for deriving a square of a subtraction result value between a received sample value and a predicted sample value is performed by broken line approximation using a plurality of linear functions.

REFERENCES:
patent: 4700319 (1987-10-01), Steiner

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