Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2006-11-07
2006-11-07
Tran, Khai (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S219000, C375S350000
Reexamination Certificate
active
07133477
ABSTRACT:
Over a channel, a signal including a desired portion associated with a desired channel and an undesired portion mixed with said desired portion may be received. Based on prior knowledge and/or empirical estimation of the desired channel and an empirical estimate of the signal cross-covariance, the desired portion from the received signal may be recovered by adaptively equalizing the channel. In one embodiment, a receiver, such as a mobile device (e.g., a cellular phone) includes a processor operably coupled to a communication interface including at least two antennas to receive the signal. The receiver may further include a MODEM that may be operably coupled to the processor, that includes an adaptive equalizer capable of detecting the signal in the presence of co-channel interference from several independent sources, inter-symbol interference and fading, for recovering the desired portion in a cellular environment with time division multiple access (TDMA) to enable digital transmission of the signal. Thus, a blind adaptive space-time equalization on the signal based on minimum mean square error (MMSE) may be provided.
REFERENCES:
patent: 5680419 (1997-10-01), Bottomley
patent: 5852630 (1998-12-01), Langberg et al.
patent: 6219561 (2001-04-01), Raleigh
patent: 6289062 (2001-09-01), Wang et al.
patent: 6452981 (2002-09-01), Raleigh et al.
patent: 6463099 (2002-10-01), Cao et al.
patent: 6662024 (2003-12-01), Walton et al.
patent: 6665545 (2003-12-01), Raleigh et al.
patent: 2002/0141437 (2002-10-01), Meyer et al.
patent: 0 631 399 (1994-12-01), None
patent: 0 948 082 (1999-10-01), None
patent: 1 091 447 (2001-04-01), None
patent: WO 98/18271 (1998-04-01), None
patent: WO 99/65160 (1999-12-01), None
Balaban, “Dual Diversity Combining and Equalization in Digital Cellular Mobile Radio,” IEEE Transactions on Vehicular Technology, vol. 40, No. 2, May 1991, pp. 342-354.
Ehrenwald Liron Oded
Yellin Daniel
Intel Corporation
Tran Khai
Trop Pruner & Hu P.C.
Ware Cicely
LandOfFree
Robust low complexity multi-antenna adaptive minimum mean... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Robust low complexity multi-antenna adaptive minimum mean..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Robust low complexity multi-antenna adaptive minimum mean... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3640798