Multi-level data transmitter
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United States of America Patent
Stats
-
Jul 2, 1996
Grant Date -
N/A
app pub date -
Jul 9, 1993
filing date -
Jul 9, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data transmitter circuit includes a pseudoternary conversion circuit for converting a binary logic signal to a differential pseudoternary signal having symmetric rise and fall characteristics. The output of the pseudoternary conversion circuit is filtered and passed to an electrically conductive medium via an isolation transformer. The conversion circuit includes a symmetric arrangement of toggle circuits which respond to transitions in respective complementary binary signals constituting a differential binary input signal. Voltage dividers are connected to the output terminals of the toggle circuits for providing three levels of output voltages in response to the logical states of the toggle circuits.
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