Circuit and method for automatic input-output configuration through local area network detection
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United States of America Patent
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-
Jun 9, 1992
Grant Date -
N/A
app pub date -
Sep 11, 1989
filing date -
Sep 11, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invented circuit includes an I/O driver capable of supplying current to an I/O connector, a current detection circuit that may include a current limit resistor and a differential amplifier, a comparator to compare the level of current to a predetermined level and to produce an output signal based thereon, and a translator to convert the output signal from the comparator into a transistor-transistor logic signal. The device that includes the invented circuit then interprets the logic signal as identifying either a serial I/O system or a LAN I/O system.
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