Patent ID: 7099375
Filing Date: 2006-08-29
Classification: H04B

Abstract:
1. A detector for use in a spread spectrum communications system having at least two different chip rates, said detector comprising: means for receiving and converting a radio analog signal to digital data bursts; means for segmenting said digital data bursts into standard data block lengths, for providing a pair of data payloads each with two data block segments where segments within respective data payloads overlap, for increasing a data block size of a first of said two data block segments and for padding a second of said two data block segments to match; detector means for processing said two data block segments and for accommodating an increased length of said first of said two data block segments to produce a detection signal; means for post processing said detection signal to reduce a data block length of said first of two data block segments to a standard data block length to produce post processed signals; matched filter means responsive to said post processed signals for decoding said reduced length data blocks whereby said detector means is invariant to changes in said chip rate and said at least two different chip rates are seamlessly detected.