Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 7, 2009
Patent Application Number
11425393
Date Filed
June 21, 2006
Patent Primary Examiner
Patent abstract
A testing method includes selecting a low-pass filter by simulation, generating testing signals with the low-pass filter receiving output signals of an under-test circuit, and outputting the testing signals to an input of the under-test circuit for predetermined measurements. A testing circuit and testing method achieve the same jitter injection as conventional high-speed testing instruments, but save testing cost.
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