Patent ID: 8265196

Claim:
A method of performing signal processing to reduce a peak to average signal ratio for a signal, the method comprising: receiving an input signal; using a signal processor circuit analyzing the input signal to identify signal peaks in the input signal over a time range; determining magnitude information for at least one signal peak in the time range; determining fractional signal peak location information for the at least one signal peak in the time range; determining a cancellation pulse, wherein the cancellation pulse is based at least in part on the input signal, the magnitude information, the signal peak location information, and a window function that is approximately centered at using the signal peak location information by: multiplying a first gain ratio, lookup table values for the window function, and the input signal to create a window-function-cancellation pulse portion; multiplying a second gain ratio by finite impulse response lookup table values to create a finite-impulse-response-cancellation pulse portion; and adding the window-function-cancellation pulse portion and the finite-impulse-response-cancellation pulse portion; and applying the cancellation pulse to the input signal.