| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a load modulation communication circuit which has a simple configuration and is driven with reduced power consumption, and visual sense regeneration auxiliary device comprising the same. <P>SOLUTION: The load modulation communication circuit which exchanges information with the outside by radio, comprises: a transmission/reception means including a secondary coil for acquiring power from the outside and transmitting/receiving information to/from the outside; an intermediate tap provided to the transmission/reception means; a switch means of which one end is connected to the intermediate tap via a load resistor and another end is nearly grounded; and a driving circuit which is connected to both ends or one end of the transmission/reception means and the intermediate tap to perform information communication or control and connected with the switch means to control the switch means, wherein when the switch means is turned on, the driving circuit grounds the intermediate tap via the load resistor nearly to the ground, modulates the load resistance of the transmission/reception means and transmits information from the transmission/reception means to the outside and when the switch means is turned off, the transmission/reception means receives information from the outside. <P>COPYRIGHT: (C)2007,JPO&INPIT |
