Methods and circuits for asymmetric distribution of channel...

Details Methods and circuits for asymmetric distribution of channel... Methods and circuits for asymmetric distribution of channel...

2011-05-24

2011-05-24

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Equalizers

Automatic

C375S221000

Reexamination Certificate

active

07949041

ABSTRACT:
A transceiver architecture supports high-speed communication over a signal lane that extends between a high-performance integrated circuit (IC) and one or more relatively low-performance ICs employing less sophisticated transmitters and receivers. The architecture compensates for performance asymmetry between ICs communicating over a bidirectional lane by instantiating relatively complex transmit and receive equalization circuitry on the higher-performance side of the lane. Both the transmit and receive equalization filter coefficients in the higher-performance IC may be adaptively updated based upon the signal response at the receiver of the higher-performance IC.

REFERENCES:
patent: 4969162 (1990-11-01), Karr
patent: 5912920 (1999-06-01), Marchok et al.
patent: 6031866 (2000-02-01), Oler et al.
patent: 6307893 (2001-10-01), Bremer et al.
patent: 6741643 (2004-05-01), McGibney
patent: 6904110 (2005-06-01), Trans et al.
patent: 7023963 (2006-04-01), Chu et al.
patent: 7242868 (2007-07-01), Soto et al.
patent: 2002/0024996 (2002-02-01), Agazzi et al.
patent: 2005/0111585 (2005-05-01), Stojanovic et al.
patent: 2005/0169362 (2005-08-01), Schenk
Fox, T.W. et al., “Transmit and Receive Digital Filters Subject to Hardware Cost Contstraints.” Department of Electrical and Computer Engineering University of Calgary, Calgary, Alberta, Canada. IEEE 2002. pp. 1055-1059.
Der, Lawrence et al., “A 2GHz CMOS Image-Reject Receiver with Sign-Sign LMS Calibration.” Electrical Engineering Department, Univerisity of California, Los Angeles, CA. IEEE, 2001 International Solid-State Circuits Conference. 3 pages.
PCT/US2007/024948 International Search Report and Written Opinion. Mailed Jan. 8, 2009. 22 pages.
Gibbard, Mark R. et al., “Asymmetiric Signal Processing for Indoor Wireles LAN's.” IEEE Transaction on Vehicular Technology, vol. 48, No. 6, Nov. 1999. pp. 2053-2064.
From: Lyons, R.G., “Understanding Digital Signal Processing.” (Appendix F—pp. 494-505). Copyright 1997 by Addison Wesley Longman Inc. 9 pages.
“Eye diagram Measurements in Advanced Design System.” Agilent Technologies. 40 pages, May 26, 2006.
Feng, Le et al., “A Sub-Optimal Receiving Scheme for SCCC with Coded MSK Over ISI Channels.” CCECE 2003-CCGEI 2003. Montreal May 2003 IEEE. pp. 77-80.
Oler, Kevin Scott, “Asymmetric Design Feedback Equalization.” A Thesis submitted to the faculty of graduate studies in partial fulfullment of the requirement for the degree of Master of Science. Department of Electical and Computer Engineering. Calgary, Alberta. Aug. 1996. 141 pages.

Affiliated with

Also associated with

Rating

Methods and circuits for asymmetric distribution of channel... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and circuits for asymmetric distribution of channel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and circuits for asymmetric distribution of channel... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2686106