摘要 |
<p>In a serial signal transmission system for transmitting data signals in a serial manner from a transmitting part to a receiving part of the system, both supplied power from a common power source, are provided a signal line extended between the two parts, a device for detecting the polarity of the power source voltage, a device for generating binary pulses in response to the output of the polarity detecting device, and a control element provided in the signal line. The control element is made conductive in accordance with the binary pulses constituting the data signals.</p> |