| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical communication system an optical ID tag and an information transmitting method, capable of improving communication efficiency. <P>SOLUTION: The optical ID tag communicates information with an optical ID reader using light as a communication medium. The tag is provided with a memory for storing information, first and second LCDs provided between a reflection plate and a deflecting plate, an output means for outputting a first pulse signal for driving the first LCD and a second pulse signal for driving the second LCD, and a control means for controlling the phase of the second pulse signal for the first pulse signal depending on the information. <P>COPYRIGHT: (C)2008,JPO&INPIT |
