发明申请
US20050031351A1 Communication system by terminal with no power supply 审中-公开
通信系统由终端无电源

Communication system by terminal with no power supply
摘要:
A communication system includes a power-sourceless terminal (10) and a transmitting station (20). The power-sourceless terminal includes a photoelectric conversion section for receiving an intensity modulated optical signal and converting it to an electric signal, and a voice output section for outputting the electric signal passing through the conversion by the photoelectric conversion section in the form of voice. The transmitting station includes a transmission section for transmitting the optical signal having its intensity modulated depending on an electric signal of the information to be transmitted.
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