Signal comparison circuit
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United States of America Patent
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Aug 24, 2010
Grant Date -
May 28, 2009
app pub date -
Nov 26, 2007
filing date -
Nov 26, 2007
priority date (Note) -
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Abstract
A signal comparison circuit is provided. The signal comparison circuit includes a first amplifier, a second amplifier, a peak detector, and a comparator. The first amplifier is a zero-peaking amplifier. The first amplifier receives and amplifies a data signal. The second amplifier receives and amplifies a reference voltage. The peak detector is coupled to the first and the second amplifiers for detecting and maintaining maximum values of the amplified data signal and the amplified reference voltage, and then outputting the maintained data signal and the maintained reference voltage. The comparator is coupled to the peak detector for comparing the maintained data signal with the maintained reference voltage and outputting a result of the comparison.
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