Method for synchronization of received signals

Details Method for synchronization of received signals Method for synchronization of received signals

2006-06-20

2006-06-20

Tran, Khai (Department: 2637)

Pulse or digital communications

Synchronizers

Synchronizing the sampling time of digital data

C375S143000, C375S152000, C375S362000, C370S503000

Reexamination Certificate

active

07065171

ABSTRACT:
A method and apparatus provide efficient synchronization recovery at the receiver end for a digital transmission system. At the receiving end, a digital signal is received including a transmitted data portion and a guard period. A signal envelope for the received digital signal is determined, and the signal envelope is filtered to find the center of the guard period, which provides a time reference for the received digital signal. Embodiments of the present invention described herein may be used for optimal operation of a digital transmission system by efficiently recovering synchronization from a received digital signal during noisy conditions without being dependent on signal shape or requiring complicated threshold calculations.

REFERENCES:
patent: 5602835 (1997-02-01), Seki et al.
patent: 5790784 (1998-08-01), Beale et al.
patent: 6058101 (2000-05-01), Huang et al.
patent: 6148045 (2000-11-01), Taura et al.
patent: 0 884 878 (1998-12-01), None

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