To provide a non-contact IC medium capable of long service life of an internal battery compared to a conventional example by reducing power consumption of a circuit of receiving a control signal compared to a conventional example.
This non-contact IC medium has a first antenna for receiving a signal of a first frequency band, a second antenna for transmitting a signal of a second frequency band, a control circuit for detecting a control signal received by the first antenna and outputting control data, and a transmitting circuit for outputting a response signal from the second antenna when the control data are input. In the non-contact IC medium, the first frequency band is set at a value lower than the second frequency band.
COPYRIGHT: (C)2007,JPO&INPIT
坪井 秀幸
小林 守
椿 俊光
水野 晃平
清水 雅史
村山 靖彦