| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device that reliably reads radio tag information even when communicating with a radio tag circuit element using an unknown communication protocol. <P>SOLUTION: A scanner 200 has: an antenna 10 for establishing radio communication exchange with a radio tag circuit element To having an IC circuit part 150 storing predetermined information and an antenna 151 connected thereto to exchange information; a control circuit 202 for generating access information for access to the information in the IC circuit part 150; and a high frequency circuit 201 for transmitting the generated access information to the radio tag circuit element To in a contactless manner via the antenna 10 to access the information in the IC circuit part 150. The control circuit 202 acquires use history information stored in a database DB, and according to the use history information, determines a communication protocol used in the transmission of the high frequency circuit 201. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
