| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive analog/digital signal transmitter capable of transmitting two pieces of independent information of an analog signal and a digital signal for insulating transmission. SOLUTION: In an analog/digital signal transmitter, two independent signals inputted as an analog signal and a digital signal are synthesized into one pulse column by an arithmetic processor 1, and an outputted analog/digital mixed signal is transmitted through optical insulated-transmission by a photocoupler 3 for a digital signal, and the analog/digital mixed signal through optical insulated-transmission by the photocoupler 3 for the digital signal is demodulated into a digital signal by a digital demodulator 2, and the analog/digital mixed signal optical insulated-transmission by the photocoupler 3 for the digital signal is demodulated into an analog signal by a delta demodulator 24.
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