Adaptive hysteresis for reduced swing signalling circuits
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United States of America Patent
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Nov 27, 2012
Grant Date -
Jul 27, 2006
app pub date -
Oct 28, 2003
filing date -
Nov 15, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus (50) for processing a differential input signal. The apparatus (50) comprises a minimum peak detector (51) with a differential input (28). The peak detector (51) provides a first voltage being proportional to an average voltage peak at the peak detector's differential input (28). A compressor (53) is provided for processing the first voltage in order to provide a second voltage. The compressor (53) is followed by a voltage controllable current source providing a trim current that is adjustable by the second voltage. A hysteresis equipped circuit (67.1) whose hysteresis characteristics are adjustable by the trim current is part of the apparatus (50).
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