Patent ID: 6968169
Filing Date: 2005-11-22
Classification: H04B

Abstract:
1. A receiver that uses multiple antennas to receive signals arriving over multiple paths, the receiver comprising: a receive weight generating circuit operable to generate receive weights for individual ones of the antennas based on signals received from the antennas; a summing circuit operable to calculate sums of results obtained by multiplying the signals received from the antennas and the receive weights of the individual antennas generated by the receive weight generating circuit; and a path detection circuit operable to detect the paths of the received signals based on the sums calculated by the summing circuit; wherein the receive weight generating circuit is operable to generate receive weights for each of the multiple paths, wherein the summing circuit is operable to calculate a sum for each of the multiple receive weights, wherein the path detection circuit is operable to detect the paths of the received signals based on the multiple sums calculated by the summing circuit, wherein the summing circuit is operable to calculate two or more members among a sum of a leading wave path, a sum of a highest level path, a sum of a lowest path, and a sum calculated with an average of the receive weights of all paths, and wherein the path detection circuit is operable to detect the paths of the received signals for every sum produced by the summing circuit, is operable to select one of the sums produced by the summing circuit based on a comparison of the detected number of paths and the detected path levels with prescribed conditions related thereto, and is operable to detect the received signal paths based on the selected sum.