Information playback apparatus with an unusual waveform circuit

Details Information playback apparatus with an unusual waveform circuit Information playback apparatus with an unusual waveform circuit

2005-05-17

2005-05-17

Tsai, Carol S. W. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S069000, C702S070000, C702S078000, C702S079000

Reexamination Certificate

active

06895348

ABSTRACT:
An unusual waveform detection circuit is a digital-type unusual waveform detection circuit that arbitrarily sets a threshold used for determining an unusual waveform and produces an unusual waveform determination signal by comparing an input signal with the threshold. In producing the unusual waveform determination signal, one of a configuration where a voltage at each of all sampling points is compared with a reference voltage and a configuration where a continuously changing gradient of signal waveform peaks is calculated and is compared with a reference gradient is selectively employed. The unusual waveform detection circuit can easily and accurately detect various unusual waveforms.

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patent: 20030072234 (2003-04-01), Ueki

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