| 摘要 |
PROBLEM TO BE SOLVED: To provide a data communication technique by which size of a system can be reduced by enabling bidirectional data communication, and enables a low cost system configuration. SOLUTION: A data communication apparatus is provided with: a signal terminal (IN) for inputting receiving signals of pulses having different rise times or fall times from each other; a reference voltage terminal (GND) for inputting a reference voltage; a rise detection circuit (11) for detecting the rise or the rise time of the receiving signal; fall detection circuit (12) for detecting fall or the fall time of the receiving signal; a data signal conversion circuit (13) for generating a clock signal and a data signal on the basis of the detection results by the rise detection circuit and the fall detection circuit, and an internal circuit (14) for inputting the clock signal and the data signal generated by the data signal conversion circuit, and for outputting a transmission signal to the signal terminal. COPYRIGHT: (C)2009,JPO&INPIT
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