DC offset calibration in a direct conversion receiver

Details DC offset calibration in a direct conversion receiver DC offset calibration in a direct conversion receiver

2011-08-30

2011-08-30

Hannon, Christian A (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S310000, C455S232100, C375S346000

Reexamination Certificate

active

08010077

ABSTRACT:
A direct conversion receiver (200) includes a low noise amplifier (LNA) (213), at least one baseband amplifier (119, 123and127), register banks (250and251) for storing a plurality of offset data corresponding to at least two LNA gain settings and a plurality of baseband gain settings, a DC offset correction system (235) for providing a DC offset signal, a state machine (275) for sequencing through each of the plurality of baseband gain settings and through enable and disable states for the LNA, and a processor (290) programmed to activate the state machine and to run the DC offset correction system.

REFERENCES:
patent: 6240100 (2001-05-01), Riordan et al.
patent: 7072427 (2006-07-01), Rawlins et al.
patent: 7130359 (2006-10-01), Rahman
patent: 7313198 (2007-12-01), Rahman et al.
patent: 7496340 (2009-02-01), Chen et al.
patent: 7603094 (2009-10-01), Rahman et al.
patent: 7777546 (2010-08-01), Liu
patent: 7899431 (2011-03-01), Rahman et al.
patent: 7912437 (2011-03-01), Rahman et al.
patent: 2006/0105735 (2006-05-01), Ibrahim et al.
patent: 2007/0293180 (2007-12-01), Rahman et al.

Affiliated with

Also associated with

Rating

DC offset calibration in a direct conversion receiver 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 offset calibration in a direct conversion receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC offset calibration in a direct conversion receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2753744