Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Reexamination Certificate
2007-04-17
2007-04-17
Urban, Edward F. (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
C455S226100, C455S296000, C375S346000
Reexamination Certificate
active
10862714
ABSTRACT:
A method to perform adaptive channel filtering on a Radio Frequency (RF) bursts in a cellular wireless communication system. This method first filters an input signal with a first stage filter having a first bandwidth to produce a first stage output signal. Then the first stage output signal is filtered with a second stage filter having a second bandwidth narrower than that of the first stage filter to produce a multi-stage output signal. A comparison between first stage performance measurements and multi-stage performance measurements determine the mode of operation of the adaptive multistage filter. A first mode of operation, selected when the first stage performance measurement compares favorably with the second stage performance measurement, selects the output of the first stage filter as the output of the multi-stage filter. Otherwise, a second mode of operation selects the output of the second stage filter as the output of the multi-stage filter.
REFERENCES:
patent: 4907293 (1990-03-01), Ueno
patent: 5339455 (1994-08-01), Vogt et al.
patent: 5493717 (1996-02-01), Schwarz
patent: 5584063 (1996-12-01), Brinkhaus
patent: 5758296 (1998-05-01), Nakamura
patent: 6901243 (2005-05-01), Jayaraman et al.
patent: 6957054 (2005-10-01), Li
patent: 7039093 (2006-05-01), Rouphael et al.
Sollenberger Nelson R.
Yang Baoguo
Broadcom Corporation
Garlick & Harrison & Markison
Jackson Blane J.
McLauchlan Robert
Urban Edward F.
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