DC restoration circuit for multi-level transmission signals
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United States of America Patent
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Dec 1, 1998
Grant Date -
N/A
app pub date -
Mar 13, 1996
filing date -
Mar 13, 1996
priority date (Note) -
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Abstract
A DC restoration circuit to correct for baseline wandering in a data receiver is provided. A voltage correction circuit is connected to the received data line to adjust the voltage level of the received data dynamically. The voltage correction circuit is controlled by a feedback circuit which includes a voltage detection circuit configured to detect the peak voltage levels or envelope of the received data. This detected level is then compared to a reference level, and the result of the comparison is used as a control signal for the voltage correction circuit.
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