Patents Represented by Attorney Nixon & Vanderhe P.C.

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  • Dual purpose spread spectrum radio receivers with controlled frequency rejection
    Patent number: 6920172
    Abstract: A receiver for a direct sequence spread spectrum signal subject to interference from a locally transmitted or received frequency-hopped spread spectrum signal includes a programmable notch filter which is controlled in accordance with the code sequence of a frequency-hopped signal to reject frequencies corresponding to those producing interference
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: July 19, 2005
    Assignee: 3Com Corporation
    Inventors: Stephen A Williams, Andrew Knowles