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Synchronizing carrier frequencies of co-channel amplitude-modulated broadcast

United States Patent

May 15, 2007
View the Complete Patent at the US Patent & Trademark Office
Systems and methods are described for carrier-frequency synchronization for improved AM and TV broadcast reception. A method includes synchronizing a carrier frequency of a broadcast signal with a remote reference frequency. An apparatus includes a reference signal receiver; a phase comparator coupled to the reference signal receiver; a voltage controlled oscillator coupled to the phase comparator; and a radio frequency output coupled to the voltage controlled oscillator.
Smith; Stephen F. (London, TN), Moore; James A. (Powell, TN)
UT-Battelle, LLC (Oak Ridge, TN)
10/ 304,338
November 26, 2002
STATEMENT AS TO RIGHTS TO INVENTIONS MADE UNDER FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT This invention was made with United States Government support awarded by the United States Department of Energy under contract to UT-Battelle, LLC. The United States has certain rights in this invention.