| 摘要 |
PURPOSE:To select freely the location of device installation by utilizing an information signal line so as to attain information change without being supplied with external power thereby eliminating the need for the cost of power supply installation required to the installation of the device. CONSTITUTION:An information converter 1 converts and matches different interfaces 6, 7 respectively so as to expand information processing. Transmission/reception circuits 2, 4 receive a signal transmitted from the interfaces 6, 7 and transmits the signal to a converting circuit 3. Moreover, the signal transmitted from the circuit 3 is transmitted externally from the interfaces 6, 7 respectively. Furthermore, the circuit 3 matches the signal level of the circuits 2, 4 and matches the signal transmission/reception system. On the other hand, a power generation circuit 5 detects the information change by using a signal line from the interfaces 6, 7 and generates and supplies the power used at the circuits 2, 3, 4 and 5 at information change. |
