Theft detecting tag

Assembly Automation

ISSN: 0144-5154

Article publication date: 1 March 2000




(2000), "Theft detecting tag", Assembly Automation, Vol. 20 No. 1.



Emerald Group Publishing Limited

Copyright © 2000, MCB UP Limited

Theft detecting tag

Theft detecting tag

Keyword: Security

Applicant: Mitsubishi Materials Corp. (JP)Patent number: EP0938069Publication date: 25 August 1999

Title: Theft detecting tag

Conventional theft detection devices for cash registers or safes require modification, since a staff member may not be ready to activate an alarm. It is a first object of the present invention to provide a tag which is used for detecting theft of articles such as bills or notes. It is a second object that there is no effect on the detecting capability of a tag detecting sensor, even if a conductive or magnetic auxiliary member is arranged between the sensor and the tag. The tag, which has one or more resonant circuit sections on an insulating base sheet, is positioned with an article in a specified place. An alarm is not activated when the tag is detected by the sensor, while it is activated when the tag is not detected by the sensor. At least one of the resonant circuit sections is disposed apart from the conductive or magnetic auxiliary member, with respect to the auxiliary member to be disposed between the sensor and the tag. The specified place refers to a case positioned in a cash register or a safe; the article includes bills, notes or securities; and the auxiliary member is a metal retainer. A fold line is formed on the insulating base sheet, and the resonator circuit sections are arranged apart from the fold line on the sheet.

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