07751786 is referenced by 8 patents and cites 33 patents.

A signal processing system according to various aspects of the present invention includes an excursion signal generator, a scaling system and a filter system. The excursion signal generator identifies a peak portion of a signal that exceeds a threshold and generates a corresponding excursion signal. The scaling system applies a real scale factor to contiguous sets of excursion samples in order to optimize peak-reduction performance. The filter system filters the excursion signal to remove unwanted frequency components from the excursion signal. The filtered excursion signal may then be subtracted from a delayed version of the original signal to reduce the peak. The signal processing system may also control power consumption by adjusting the threshold. The signal processing system may additionally adjust the scale of the excursion signal and/or individual channel signals, such as to meet constraints on channel noise and output spectrum, or to optimize peak reduction. The magnitude threshold, excursion signal and/or individual channel signals may also be adaptively adjusted based on, for example, a channel signal quality such as a noise level specification.

Title
Method and apparatus for adaptively controlling signals
Application Number
12/333847
Publication Number
7751786 (B2)
Application Date
December 12, 2008
Publication Date
July 6, 2010
Inventor
Eric M Brombaugh
Mesa
AZ, US
Ronald D McCallister
Scottsdale
AZ, US
Agent
Locke Lord Bissell & Liddell
Assignee
CrestCom
AZ, US
IPC
H04B 17/00
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