Circuit sharing for frequency and phase error correction

Details Circuit sharing for frequency and phase error correction Circuit sharing for frequency and phase error correction

2007-01-23

2007-01-23

Ghebretinsae, Temesghen (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S354000

Reexamination Certificate

active

10327156

ABSTRACT:
A WLAN (Wireless Local Area Network) receiver with a synchronization unit is provided, wherein the synchronization unit comprises a frequency error correction unit configured to perform a frequency error correction process, a phase error correction unit configured to perform a phase error correction process, a filter circuit capable of applying one of at least two different filter transfer functions, wherein a first one of said at least two different filter transfer functions is a frequency error correction filter transfer function for use in said frequency error correction process and a second one of said at least two different filter transfer functions is a phase error correction filter transfer function for use in said phase error correction process, and a controller unit connected to said filter circuit to select one of said at least two different filter transfer functions.

REFERENCES:
patent: 4860321 (1989-08-01), von der Embse
patent: 6304582 (2001-10-01), Zhang et al.
patent: 6560053 (2003-05-01), Ohta et al.
patent: 6603801 (2003-08-01), Andren et al.
patent: 6614836 (2003-09-01), Halford et al.
patent: 6650187 (2003-11-01), Riddle et al.
patent: 6678312 (2004-01-01), Mohindra
patent: 6895255 (2005-05-01), Bridgelall
Keller, et al: “Orthogonal Frequency Division Multiplex Synchronisation Techniques for Wireless Local Area Networks”, IEEE International Symposium on Personal Indoor and Mobile Radio Communications, Oct. 15, 1996, pp. 963-967.

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