Decision feedback equalizer

Details Decision feedback equalizer Decision feedback equalizer

2006-09-19

2006-09-19

Vo, Don N. (Department: 2611)

Pulse or digital communications

Equalizers

Automatic

C375S350000

Reexamination Certificate

active

07110449

ABSTRACT:
A decision feedback equalizer for processing a data signal provides concurrent equalizer outputs for hard decision directed and soft decision directed modes. The joint architecture in accordance with the present invention takes advantage of the fact, herein recognized, that for each equalizer output symbol soft decision bit representation, a subset of these bits corresponds to the hard decision representation. As a result, the invention permits the concurrent output of two distinct modes with essentially the same hardware as a one output equalizer.

REFERENCES:
patent: 5063573 (1991-11-01), Langewellpott
patent: 6240133 (2001-05-01), Sommer et al.
patent: 6529559 (2003-03-01), Reshef
patent: 6724809 (2004-04-01), Reznik
patent: 2004/0008765 (2004-01-01), Chung et al.
Copy of Search Report Dated Jun. 14, 2003.

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