Apparatus and method for calibrating mixer offset

Telecommunications – Transmitter – Measuring – testing – or monitoring of transmitter

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S114200, C455S114300, C455S063100, C375S296000

Reexamination Certificate

active

07660563

ABSTRACT:
A circuit including a subcircuit having differential signals, and a feedback circuit coupled to the subcircuit. The feedback circuit is configured to measure an offset between the differential signals, to generate a calibration signal in response to the measurement, and to reduce the offset in response to the calibration signal.

REFERENCES:
patent: 5381108 (1995-01-01), Whitmarsh et al.
patent: 5548840 (1996-08-01), Heck
patent: 6438365 (2002-08-01), Balteanu
patent: 6587513 (2003-07-01), Ichihara
patent: 6763227 (2004-07-01), Kramer
patent: 7065154 (2006-06-01), Ylamurto
patent: 7181205 (2007-02-01), Scott et al.
patent: 2004/0095993 (2004-05-01), Liu et al.
patent: 2005/0141634 (2005-06-01), Lin
patent: 2005/0159130 (2005-07-01), Yang et al.
patent: 2006/0073803 (2006-04-01), Igarashi et al.
patent: 2006/0120493 (2006-06-01), Huang et al.
patent: 2006/0208769 (2006-09-01), Sanduleanu et al.
patent: 2006/0234664 (2006-10-01), Chiu et al.
patent: 2006/0258317 (2006-11-01), Watanabe
patent: 2007/0109028 (2007-05-01), Craninckx
patent: 2007/0132500 (2007-06-01), Embabi et al.
patent: 2213006 (1987-11-01), None
patent: 2002-164947 (2002-06-01), None
PCT International Preliminary Report on Patent Liability (Chapter 1 of the PCT) for Int'l. Application No. PCT/US2006/037092, filing date Sep. 22, 2006, mailed Apr. 3, 2008, (2 pgs.).
PCT Written Opinion of the International Searching Authority for Int'l. Application No. PCT/US2006/037092, filing date Sep. 22, 2006, mailed Apr. 3, 2008, (3 pgs.).
International Search Report, PCT/US06/37092 filed Sep. 22, 2006, mailed Sep. 25, 2007.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for calibrating mixer offset does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for calibrating mixer offset, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for calibrating mixer offset will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4211278

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.