| 摘要 |
PURPOSE: To prevent data information from being mistaken due to halation by sufficiently supplying light energy to a second transmitting and receiving unit which receives energy before data are received or transmitted. CONSTITUTION: This method includes a process that a first transmitting and receiving unit transmits light energy to be converted into electric energy in a second transmitting and receiving unit and stored for current supply in one preliminarily decided time, process that the data transmitter of the first transmitting and receiving unit starts to transmit one auxiliary synchronizing pulse in this preliminarily decided time, process that the transmission of the light energy and the auxiliary synchronizing pulse is simultaneously stopped, and process that both falling edges simultaneously generated according to this are detected in the second transmitting and receiving unit, and used as a synchronizing signal. Thus, data to be transmitted to a light transmitting device can be prevented from being mistaken due to light energy transmission. |
