Bidirectional data transmission system
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United States of America Patent
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Dec 19, 2017
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N/A
app pub date -
Dec 19, 2014
filing date -
Jun 23, 2014
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Abstract
A system for bidirectional signal transmission may comprise a forward data transmission circuit to unidirectionally transmit a first input signal and a backward data transmission circuit to unidirectionally transmit a second input signal. The backward data transmission circuit may comprises a logic circuit to detect a voltage difference over a resistance element in the forward data transmission circuit. When the voltage difference is lower than a threshold value, the logic circuit outputs a first voltage level. When the voltage difference is greater than or equal to a threshold value, the logic circuit outputs a second voltage level different from the first voltage level.
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