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1. (WO2018034333) ID INFORMATION TRANSMISSION/RECEPTION DEVICE AND COMMUNICATION SYSTEM

Pub. No.:    WO/2018/034333    International Application No.:    PCT/JP2017/029597
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Sat Aug 19 01:59:59 CEST 2017
IPC: G06K 19/07
G01J 1/02
G06K 19/077
H01Q 1/38
H01Q 9/26
Applicants: AOYAMA Hiroshi
青山 博司
Inventors: AOYAMA Hiroshi
青山 博司
MUGITA Joji
麦田 錠児
Title: ID INFORMATION TRANSMISSION/RECEPTION DEVICE AND COMMUNICATION SYSTEM
Abstract:
The objective of the present invention is to provide an ID information transmission/reception device and communication system with which it is possible to detect at a low cost whether an electromagnetic wave has been irradiated. This ID information transmission/reception device is provided with an antenna that can communicate in a non-contact manner with a reader-writer, and an IC chip electrically connected to the antenna, the ID information transmission/reception device being characterized in that enabling/disabling of communication with the reader-writer is switched by the irradiation of an electromagnetic wave. This communication system is provided with an ID information transmission/reception device comprising the above configuration, and a reader-writer that can communicate in a non-contact manner with the ID information transmission/reception device. The electrical properties of the antenna may vary due to the irradiation of the electromagnetic wave. The antenna may have a property-varying part in which the electrical properties vary due to the irradiation of the electromagnetic wave. The electrical properties may include at least one among the dielectric constant, the resonance frequency, and the electrical resistance value of the antenna.