Patent ID: 6075809
Filing Date: 2000-06-13
Classification: H04B

Abstract:
A receiving apparatus for receiving a signal spectrum-spread with a first spread code, comprising:a searcher for searching paths of signals received from multi-paths;a plurality of fingers for de-spreading the received signals for the searched paths and demodulating data; anda combiner for combining output data of said plurality of fingers;wherein said searcher hascode generating means for generating a second spread code having a phase that is successively shifted in a same pattern as the first spread code,de-spreading means for multiplying the received spectrum-spread signal by the second spread code generated by said code generating means to de-spread the received spectrum-spread signal to original data and supplying a product of the multiplying operation as an output, andcorrelation value detecting means for accumulating a cumulated value of the output of said de-spreading means, comparing the cumulated value with a predetermined threshold value, and when the cumulated value is larger than the predetermined threshold value, obtaining a correlation value for each phase, and selecting a plurality of largest correlation values from those detected.