Method to detect time-delays in non-periodic signals
AssigneeRaytheon Company
InventorAndrew M. Kowalevicz
Life of this patent
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Abstract
A method for carrying data on a live host signal, comprising the steps of: varying timing in a host signal in response to data to be encoded, wherein variations in timing are smaller than a sampling period for detection and capture of the digital signal receiving the live host signal; sensing pulse timing variations in the received live host signal by comparison to a reference signal; and determining information in the sensed timing variations.
Claims14
A method for measuring timing variations and/or deviation from ideal waveform transitions in a first host signal, comprising:
- reconstructing a second host signal using the first host signal with reference to a stable clock signal;
- simultaneously phase detecting both the first host signal and the second host signal against a common stable clock signal;
- and
- comparing the phase detected signals for producing a signal indicating the relative timing variation within the first host signal.
A system for measuring timing variations and/or deviation from ideal waveform transitions in a first host signal, comprising:
- a processor adapted to reconstructing a second host signal using the first host signal with reference to a stable clock signal;
- a pair of phase detectors coupled to simultaneously phase detect both the first host signal and the second host signal against a common stable clock signal;
- and
- a comparator coupled for comparing the phase detected signals from the pair of phase detectors for producing a signal indicating the relative timing variation within the first host signal.
Dependencies are inferred from the claim text.