SYSTEM AND METHOD OF DATA COMMUNICATION USING TRELLIS CODED...

Details SYSTEM AND METHOD OF DATA COMMUNICATION USING TRELLIS CODED... SYSTEM AND METHOD OF DATA COMMUNICATION USING TRELLIS CODED...

2005-09-13

2005-09-13

Ha, Dac V. (Department: 2634)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S298000, C375S341000, C375S348000, C714S755000, C714S774000, C714S792000

Reexamination Certificate

active

06944235

ABSTRACT:
A technique that combines either a trellis coded modulation (TCM) coding scheme or a turbo trellis coded modulation (TTCM) coding scheme with constellation shaping and precoding schemes, and further in combination with concatenated coding schemes or when working in a non-error free operation point, to implement a binary coded communication system and method that can achieve high performance (high coding gains achieved in combination with shaping gain, and when necessary, also with high performance in ISI-channels via precoding).

REFERENCES:
patent: 5321725 (1994-06-01), Paik et al.
patent: 5838728 (1998-11-01), Alamouti et al.
patent: 6584140 (2003-06-01), Lee
patent: 6584593 (2003-06-01), Seshadri et al.

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