Patent ID: 7369155
Filing Date: 2008-05-06
Classification: H04B,H04N

Abstract:
1. A method of rejecting co-channel interference signal from a first digital signal, comprising: delaying the first digital signal by M taps to output a first delayed signal, wherein M is a positive integer; generating an synthesized interference signal by feeding the first digital signal to a synthesis filter, wherein the synthesis filter is a N-tap FIR filter with N>M; subtracting the synthesized interference signal from the first delayed digital signal and producing a second digital signal; equalizing the second digital signal to output an equalized signal based on a first decision signal; decoding the equalized signal and outputting the first decision signal; delaying the equalized signal by M taps and outputting a second delayed signal; generating a compensation signal based on the first decision signal; and subtracting the compensation signal from the second delayed signal and producing a fifth digital signal serving as an output signal.