Method and apparatus for conditionally combining bit metrics in

Details Method and apparatus for conditionally combining bit metrics in Method and apparatus for conditionally combining bit metrics in

1995-11-24

2000-02-08

Pham, Chi H.

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

375262, H03D 100, H04L 2700

Patent

active

06023492&

ABSTRACT:
Methods and apparatuses for evaluating expressions used, for example, in convolutional decoders are described. By arranging digital logic elements in a manner designed to minimize the number of additions performed while evaluating hypothetical bit sequences, decoder performance is improved. Bit metrics and combinations thereof are first determined and supplied to a multiplexor. The multiplexor can then be controlled to output the selected one of the bit metrics or combinations thereof which is to be added to an accumulated path metric.

REFERENCES:
patent: 4390987 (1983-06-01), Best
patent: 4513388 (1985-04-01), Veendrick et al.
patent: 4536878 (1985-08-01), Rattlingourd et al.
patent: 4571734 (1986-02-01), Dolivi et al.
patent: 4606027 (1986-08-01), Otani
patent: 5027374 (1991-06-01), Rossman
patent: 5185714 (1993-02-01), Nakayama
patent: 5258940 (1993-11-01), Coker et al.
patent: 5295178 (1994-03-01), Nickel et al.
patent: 5331665 (1994-07-01), Busschaert et al.
patent: 5341386 (1994-08-01), Shimoda
patent: 5583889 (1996-12-01), Citta et al.
patent: 5588011 (1996-12-01), Riggle
patent: 5768316 (1998-06-01), Sogo
Internaitonal Search Report re PCT/SE96/01438 Mar. 17, 1997.
European Standard Search Report No. RS 96055 Jun. 20, 1996.

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