Patent ID: 6191736
Filing Date: 2001-02-20
Classification: H04B

Abstract:
A data communication apparatus comprising:a plurality of antennas;memorizing means for memorizing received signals provided via said plurality of antennas;first weight controlling means for calculating first weights by which each of said received signals provided via said plurality of antennas is weighed to be synthesized;second weight controlling means for calculating second weights using said received signals provided via said plurality of antennas;multiplying means for multiplying each of said received signals provided via said plurality of antennas by said first weights, while multiplying each of said received signals provided via said plurality of antennas by said second weights, when a channel quality of a radio signal deteriorates;adding means for synthesizing the multiplication result;compensating means for estimating a deterioration of the channel quality of the radio signal, using the synthesis result to compensate for the deterioration; anddetecting means for detecting the compensation result to output to a first weighing coefficient controlling means and said second weight controlling means as a parameter to calculate a first weighing coefficient and said second weights.