Patent ID: 6577670
Filing Date: 2003-06-10
Classification: H04B

Abstract:
A method of preventing a frequency-changing transmitter from potentially interfering with the operation of a direct sequence spread spectrum (DSSS) communication device comprising the steps of:(a) providing first information representative of one or more frequencies that said frequency-changing transmitter is expected to use during a communication interval of said DSSS communication device, including monitoring the operation of said frequency-changing transmitter to identify said one or more frequencies transmittable by said frequency-changing transmitter during said communication interval of said DSSS communication device; and (b) causing the frequency content of DSSS communication signals employable by said DSSS communication device during said communication interval to be exclusive of said one or more frequencies, including controllably synthesizing a notch filter of said DSSS communication device to form one or more notches in the passband spectrum thereof at respective one or more frequencies identified in step (a), and thereby cause said notch filter to exclude said one or more frequencies from said frequency content of said DSSS communication signals employable by said DSSS communication device during said communication interval.