| 摘要 |
PURPOSE:To transmit a wide range of analog signals at a high speed, by voltage-frequency converting the analog signals and putting the converted output on a transmission line after 1/2-dividing the output, and then, demodulating the transmitting signal by doubling the received pulse. CONSTITUTION:A voltage-frequency converter 1 obtains outputs of a fixed pulse width at intervals proportional to analog signal voltages. The pulse output of the converter 1 is 1/2-divided at a 1/2-dividing circuit 2 and becomes a pulse of 50% duty. The pulse signal is doubled at a multiplying circuit 6 after passing through a transmitter 3, transmission line 4, and receiver 5. The output of the circuit 6 is obtained by differentially detecting the rise and fall of the received signal and can be outputted from an exclusive OR circuit 6B which inputs a signal obtained by delaying the input pulse by a fixed time and the input pulse. |
