Adaptive channel equalizer and method for equalizing...

Details Adaptive channel equalizer and method for equalizing... Adaptive channel equalizer and method for equalizing...

2005-12-05

2009-12-22

Burd, Kevin M (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S229000

Reexamination Certificate

active

07636398

ABSTRACT:
A channel equalizer obtains channel impulse responses (CIRs) for all subcarriers by way of filtering channel impulse responses of specific subcarriers using at least two filters. One of the two filters may be a low pass filter. At least one other of the at least two filters is implemented as a band pass filter having a variable filtering bandwidth, being available to establish various filtering bandwidths in response to various multi-path channel environments. By improving the performance of channel estimation, equalization may be improved.

REFERENCES:
patent: 2003/0182106 (2003-09-01), Bitzer et al.
patent: 2004/0218519 (2004-11-01), Chiou et al.
patent: 2005/0265490 (2005-12-01), Sestok et al.
patent: 2006/0146690 (2006-07-01), Zhang et al.
patent: 2004-153831 (2004-05-01), None
patent: 2000-0018811 (2000-04-01), None

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