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US 2003/0112907 A1Published application
Synchronizing carrier frequences of co-channel amplitude-modulated broadcast
AssigneeUT-Battelle, LLC
InventorsStephen F. Smith, James A. Moore
Life of this patent
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Abstract
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.
Claims51
A method, comprising synchronizing a carrier frequency of a broadcast signal with a remote reference frequency.
An apparatus, comprising:
- 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.
2 more elements
Dependencies are inferred from the claim text.