Clock recovery system with triggered phase error measurement
First Claim
1. A measurement system, comprising:
- a clock recovery system having an associated response characteristic, receiving an input signal and recovering a clock signal from the input signal;
a measurement module coupled to the clock recovery system, measuring a phase error signal received from the clock recovery system that represents a phase error between the input signal and the recovered clock signal; and
a processor applying the associated response characteristic of the clock recovery system to the measured phase error signal to determine the phase of the input signal.
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Accused Products
Abstract
A measurement system includes a clock recovery system and a measurement module coupled to the clock recovery system. The clock recovery system has an associated response characteristic. The clock recovery system receives an input signal and recovers a clock signal from the input signal. The measurement module is coupled to the clock recovery system and measures a phase error signal received from the clock recovery system, time-referenced to a trigger signal that is applied to the measurement module, where the phase error signal represents the phase difference between the input signal and the recovered clock signal. A processor applies the associated response characteristic to the measured phase error signal to determine the phase of the input signal.
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Citations
20 Claims
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1. A measurement system, comprising:
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a clock recovery system having an associated response characteristic, receiving an input signal and recovering a clock signal from the input signal;
a measurement module coupled to the clock recovery system, measuring a phase error signal received from the clock recovery system that represents a phase error between the input signal and the recovered clock signal; and
a processor applying the associated response characteristic of the clock recovery system to the measured phase error signal to determine the phase of the input signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A measurement system, comprising:
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a clock recovery system having an associated response characteristic, receiving an input signal and recovering a clock signal from the input signal;
a measurement module coupled to the clock recovery system, measuring a phase error signal time-referenced to a trigger signal applied to the measurement module, where the phase error signal is received from the clock recovery system and represents a phase difference between the input signal and the recovered clock signal; and
a processor applying the associated response characteristic to the measured phase error signal to determine the phase of the input signal. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification