Multi-stage phase detector

Details Multi-stage phase detector Multi-stage phase detector

2004-11-19

2008-12-16

Ghayour, Mohammad H (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S354000, C375S373000, C327S147000, C327S156000

Reexamination Certificate

active

07466787

ABSTRACT:
A multi-stage phase detector (four stages in one described embodiment) comprises a plurality of data paths and phase paths that are buffered from a received serial data input stream to reduce loading. Each data path recovers a data bit and further functions as a transition detector to detect consecutive data bits having similar logic states. An exclusive NOR gate in the data path produces a control signal to disable a multiplexer in the phase path when two data bits have similar logic states. Each phase path produces a sample of a serial data input stream and produces the sample to a multiplexer for coupling to a transconductance module. The multiplexer output is coupled to or decoupled from the transconductance module by the control signal from the data path to maintain phase-lock.

REFERENCES:
patent: 5541929 (1996-07-01), Jokura
patent: 5917383 (1999-06-01), Tso et al.
patent: 5963063 (1999-10-01), Sugihashi
patent: 5991270 (1999-11-01), Zwan et al.
patent: 6266799 (2001-07-01), Lee et al.
patent: 6522183 (2003-02-01), Sumi
patent: 6538475 (2003-03-01), Johansen et al.
patent: 6545507 (2003-04-01), Goller
patent: 6560306 (2003-05-01), Duffy et al.
patent: 6815987 (2004-11-01), Hsu et al.
patent: 7098685 (2006-08-01), Agrawal et al.
patent: 7142621 (2006-11-01), Vallet et al.
patent: 7170964 (2007-01-01), Kocaman et al.
patent: 7183864 (2007-02-01), Gutnik

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