Pulse or digital communications – Receivers – Particular pulse demodulator or detector
Reexamination Certificate
2006-03-28
2010-11-09
Tran, Khanh C (Department: 2611)
Pulse or digital communications
Receivers
Particular pulse demodulator or detector
C375S262000
Reexamination Certificate
active
07830988
ABSTRACT:
A MIMO decoder, which is capable of changing a search area of a transmission signal vector in accordance with a change in a channel matrix, includes: a generalized inverse vector matrix calculation unit for calculating a generalized inverse matrix of Moore-Penrose derived from a channel matrix indicative of a radiowave propagation environment; a search area limiting processing unit for performing weighting for each eigenvector calculated from the channel matrix in inverse proportion to a square root of an eigenvalue corresponding to the eigenvector, and determines the search area of the transmission signal vector centered at the generalized inverse matrix solution of Moore-Penrose based on the weighted result; and a most likelihood estimation unit for searching for a transmission signal vector by use of a most likelihood estimation based on the search area determined by the search area limiting processing unit.
REFERENCES:
patent: 6351462 (2002-02-01), Komatsu
patent: 6876693 (2005-04-01), Sim
patent: 7555035 (2009-06-01), Shi et al.
patent: 7596133 (2009-09-01), Shin et al.
patent: 2002/0018517 (2002-02-01), Hara
patent: 2006/0159052 (2006-07-01), Koga et al.
patent: 2006/0285531 (2006-12-01), Howard et al.
patent: 9-212489 (1997-08-01), None
patent: 2000-209018 (2000-07-01), None
patent: 2003-152603 (2003-05-01), None
patent: 2003-348057 (2003-12-01), None
patent: 2004-282757 (2004-10-01), None
patent: WO 03/081803 (2003-10-01), None
patent: WO 2004/038952 (2004-05-01), None
Gerard J. Foschini, “Layered space-time architecture for wireless communications in a fading environment when using multiple antennas,” Bell Labs Technical Journal, vol. 6, No. 2, pp. 41-59, Autumn 1996.
Emre Telatar, “Capacity of multi-antenna Gaussian channels,” European Transaction on Telecommunication, vol. 10, No. 6, pp. 585-595, Nov./Dec. 1999.
NEC Corporation
Sughrue & Mion, PLLC
Tran Khanh C
LandOfFree
MIMO decoder and MIMO decoding method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with MIMO decoder and MIMO decoding method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MIMO decoder and MIMO decoding method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4202915