DC cancellation circuit

Details DC cancellation circuit DC cancellation circuit

2011-03-29

2011-03-29

Nguyen, Simon D (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S240100, C455S248100, C455S252100, C455S333000, C330S086000, C330S259000

Reexamination Certificate

active

07917114

ABSTRACT:
The present invention relates to a DC offset canceling circuit. In one aspect of the invention, a DC offset canceling circuit with independently configurable gain and roll-off frequency is provided. In one embodiment of the present invention, the DC offset canceling circuit is used in the receive path of a down-conversion wireless receiver. In another aspect of the invention, a method for independently varying the gain and the roll-off frequency of the DC offset canceling circuit is provided. In one embodiment, the method is used to independently operate a gain control scheme and a DC offset cancellation strategy in a DC canceling circuit.

REFERENCES:
patent: 6407630 (2002-06-01), Yao et al.
patent: 6429697 (2002-08-01), Amazeen et al.
patent: 6516187 (2003-02-01), Williams et al.
patent: 6577188 (2003-06-01), Ueno et al.
patent: 7020449 (2006-03-01), Shi
patent: 7127224 (2006-10-01), Ichihara
patent: 7253680 (2007-08-01), Laletin
patent: 7403760 (2008-07-01), Gao
patent: 2003/0128776 (2003-07-01), Rawlins et al.

Affiliated with

Also associated with

Rating

DC cancellation circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DC cancellation circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC cancellation circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2655013