Pulse or digital communications – Receivers – Interference or noise reduction
Patent
1994-07-26
1995-10-17
Chin, Stephen
Pulse or digital communications
Receivers
Interference or noise reduction
455222, 455296, H04B 110
Patent
active
054597501
ABSTRACT:
An apparatus and method for discriminating and suppressing noise within an incoming signal including a first signal processor to generate a first signal representing the incoming signal; a second signal processor to generate a second signal representing the first signal; a prediction device which generates a prediction for the second signal; a logic device which determines the difference between the second signal and the prediction and generates a logic output having a first value when the difference exceeds a threshold and a second value when the difference does not exceed the threshold; and a muting device to mute the incoming signal when the logic output has one value and not mute the incoming signal when the logic output has the other value. The method includes the steps of (1) generating a first signal representing the average signal energy of the incoming signal; (2) generating a second signal representing the first signal normalized with respect to a maximum signal energy expected; (3) generating a prediction for the second signal; (4) determining a difference between the second signal and the prediction; (5) generating a control signal having a first value when the difference exceeds a threshold and a second value when the difference does not exceed the threshold; and (6) providing a muting device which responds to the control signal to mute the incoming signal when the control signal has one value and not mute the incoming signal when the control signal has the other value.
REFERENCES:
patent: 4411021 (1983-10-01), Yoakum
patent: 4429404 (1984-01-01), Mai
patent: 4648127 (1987-03-01), Jongepier
patent: 4704736 (1987-11-01), Kasser
patent: 4972510 (1990-11-01), Guizerix et al.
patent: 5161185 (1992-11-01), Hochschild
patent: 5369791 (1994-11-01), Asghar et al.
Asghar Safdar M.
Bartkowiak John G.
Hiotakakos Dimitris
Ireton Mark A.
Xydeas Costas S.
Advanced Micro Devices , Inc.
Chin Stephen
Phan Hai H.
LandOfFree
Apparatus and method for discriminating and suppressing noise wi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for discriminating and suppressing noise wi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for discriminating and suppressing noise wi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-603932