Patent ID: 9356650
Filing Date: 2016-05-31
CPC Classification: H04B

Claim Text:
1. An integrated circuit for spread spectrum reception, comprising: an hypothesis search circuit operable to search hypothesis frequencies and code lags to produce correlation results; and a processor circuit operable to combine the correlation results for at least two hypothesis frequencies at a given code lag, the at least two hypothesis frequencies separated by a predetermined frequency difference, and to identify a peak in the combined correlation results; wherein said hypothesis search circuit is operable to switch to a bit edge aligned search to issue a plurality of repetitions of pseudonoise (PN) code free of negation per coherent integration window with a Doppler wipeoff at two frequencies equally offset plus/minus from the Doppler frequency and correlate with a received signal to electronically determine whether the correlation results combined is greater than zero or less than zero, whereby to deliver a latest signal bit.