Signal detecting apparatus and signal detecting system
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United States of America Patent
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Issued Date -
Dec 6, 2007
app pub date -
May 31, 2006
filing date -
May 31, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A signal detecting apparatus includes a component extractor extracting a voltage component whose absolute value is not less than a predetermined value from an electronic signal generated by a tester for testing an electric property of a device under test; a rate-of-change calculator calculating a time rate-of-change of a level of the voltage component extracted by the component extractor; a determiner determining whether the voltage component is identified as an irregular signal having a sudden change in voltage, based on the time rate-of-change calculated by the rate-of-change calculator; and a notifier notifying a user of a result of determination when the determiner determines that the voltage component is identified as the irregular signal.
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