Patent ID: 7020183
Filing Date: 2006-03-28
Classification: H04B

Abstract:
1. A code division multiple access signal receiving apparatus for demodulating transmit data by subjecting a receive signal to despread processing using a code sequence identical with a spreading-code sequence on a transmitting side, comprising: a cross-correlation detector for calculating a cross-correlation value per symbol between a spreading-code sequence for spread-spectrum modulating local-station-addressed transmit data and a spreading-code sequence for spread-spectrum modulating other-station-addressed transmit data; a comparator for comparing the cross-correlation value with a threshold value; a control signal output portion for outputting a control signal during a symbol interval when the cross-correlation value is larger than or equal to the threshold value; and a switch for halting passage of a portion of the receive signal that corresponds to said symbol interval during which the control signal is output or halting despread processing of a portion of the receive signal that corresponds to said symbol interval.