Method, System and Apparatus for Quantifying the Contribution of Inter-Symbol Interference Jitter on Timing Skew Budget
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Abstract
An apparatus, method and system are provided for quantifying communication channel intersymbol interference jitter effect contribution to timing skew. In general, lossy and lossless characteristics of the communication channel are preferably obtained and an output signal of the communication channel is sampled. From the sampled output signal and the lossy characteristics of the communication channel, an input signal may be derived. Using the lossless characteristics of the communication channel, the derived input signal and the sampled output signal, a value indicating the contribution of intersymbol interference jitter effect on timing skew budget for a selection communication channel may be obtained.
20 Citations
41 Claims
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1-21. -21. (canceled)
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22. A method for analyzing the effect of inter-symbol interference (ISI) jitter in a communication channel, comprising:
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determining a communication channel impulse response function from an impulse input function sent across the communication channel; sampling an output signal from a normal operational signal sent across the communication channel; and determining an effect of ISI jitter in the communication channel based at least on the impulse response function and the sampled output signal. - View Dependent Claims (23, 24, 25, 26, 27)
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28. A method for analyzing the effect of inter-symbol interference (ISI) jitter in a communication channel, comprising:
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determining a time of flight for the communication channel representing the time for a signal to travel across the communication channel under substantially lossless conditions; determining an effect of ISI jitter in the communication channel based at least on the time of flight for the communication channel under substantially lossless conditions. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. A method for analyzing the effect of inter-symbol interference (ISI) jitter in a communication channel, comprising:
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sampling an output signal sent across a communication channel; deriving an input signal to the communication channel based at least on the sampled output signal; and calculating a difference between a time of arrival for the derived input signal and the sampled output signal to determine an effect of ISI jitter in the communication channel. - View Dependent Claims (38, 39, 40, 41)
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Specification