| 摘要 |
A transmission device includes signal synthesizer 16 that replaces the least significant bits of a plurality of transmission and reception target data that are digital signals with bit data of a desired control signal that is a digital signal, and serial signal converter 17 that converts the output signal from the signal synthesizer into a serial signal and transmits the serial signal. On the other hand, a reception device includes parallel signal converter 21 that converts the received serial signal into a parallel signal to acquire transmission and reception target data, and signal separator 23 that extracts the bit data of the control signal from the respective least significant bits of transmission and reception target data output by parallel signal converter 21.
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