High speed differential encoder and interleaver

Details High speed differential encoder and interleaver High speed differential encoder and interleaver

2011-04-19

2011-04-19

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Transmitters

Angle modulation

C375S130000, C375S146000, C375S219000, C375S283000

Reexamination Certificate

active

07929640

ABSTRACT:
A plurality of differential encoders encodes a plurality of parallel data bit streams. XOR gates interleave the outputs of the differential encoders forming a single high speed differentially encoded bit stream with a data rate that is the sum of the data rate of the parallel data bit streams. The high speed data stream provides a single differentially encoded input to a differential phase shift keying modulator that generates symbols for a high speed optical communication system.

REFERENCES:
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patent: 7177362 (2007-02-01), Chang et al.
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patent: 7408912 (2008-08-01), Kasamura
patent: 7529329 (2009-05-01), Popescu et al.
patent: 2004/0131089 (2004-07-01), Uemura et al.
patent: 2006/0034394 (2006-02-01), Popescu et al.

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