Method and apparatus for accurate synchronization using symbol d

Details Method and apparatus for accurate synchronization using symbol d Method and apparatus for accurate synchronization using symbol d

1998-05-13

2000-10-10

Vo, Don

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

375355, H04L 2706

Patent

active

061309206

ABSTRACT:
A circuit (12) for symbol decision directed feedback synchronization includes a current synchonization clock (45) that provides an initial sampling point and selects a detector corresponding to a current symbol decision. The circuit further includes a plurality of detectors (31, 32, 33, and 34) including the detector corresponding to the current symbol decision, a buffer (736) for storing the output of the detector corresponding to the current symbol decision and a processor (300) for seeking within a predetermined window about the initial sampling point for an optimum phase value to provide an adjustment signal which is used by the processor to adjust a subsequent symbol's sychronization clock to provide an optimal sampling point.

REFERENCES:
patent: 5208833 (1993-05-01), Erhart et al.
patent: 5533066 (1996-07-01), Yamaguchi et al.
patent: 5748686 (1998-05-01), Langberg et al.
patent: 5751774 (1998-05-01), Wang
patent: 5802079 (1998-09-01), Wang
patent: 5838774 (1998-11-01), Zheng

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