Method and system for testing a signal path having an...

Details Method and system for testing a signal path having an... Method and system for testing a signal path having an...

2007-09-18

2007-09-18

Benson, Walter (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S534000

Reexamination Certificate

active

11231520

ABSTRACT:
A technique for testing a signal path while an operational signal is present is disclosed. The technique may be performed without injecting a test signal into the signal path by using an operational signal already present in the signal path. A method of testing a signal path includes receiving an operational signal from the signal path and estimating a correlation of the operational signal. A system for testing a signal path includes an extractor configured to extract a sample of the operational signal when coupled to a signal path and a correlator configured to estimate a correlation of the operational signal. Various properties of the signal path may be determined using the technique.

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