Frame-based carrier frequency and phase recovery system and...

Details Frame-based carrier frequency and phase recovery system and... Frame-based carrier frequency and phase recovery system and...

2005-09-30

2008-10-28

Burd, Kevin M. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Amplitude modulation

C178S020040, C331S020000, C340S003210, C348S526000, C348S538000

Reexamination Certificate

active

07443920

ABSTRACT:
Header information is used to facilitate coarse frequency and frame recovery. The coarse frequency and frame recovery is thereafter utilized to perform adaptive phase and frequency synchronization on a frame-by-frame basis. A digitized signal representative of a wireless signal may be received. A frame identifier in a physical layer header in the signal may be identified by correlating the digitized signal to one or more known frame identifiers. The identified frame identifier may be used to estimate a phase or frequency error.

REFERENCES:
patent: 4905177 (1990-02-01), Weaver, Jr. et al.
patent: 5673363 (1997-09-01), Jeon et al.
patent: 2005/0278403 (2005-12-01), Miller
patent: 2006/0191400 (2006-08-01), Puterbaugh et al.

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