Title: Device for controlling impedance returned on electronic label antenna
Application Number: 99804264 Application Date: 1999.03.15
Publication Number: 1294765 Publication Date: 2001.05.09
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G06K19/077;H01Q7/00
Applicant(s) Name: Gemplus S.C.A. Address:
Inventor(s) Name: M. Ousset
Attorney & Agent: wang yong
Abstract:
    The invention concerns electronic labels each associated with a product for its identification. The invention is characterised in that the label comprises a device for modifying the impedance returned on the antenna using a variable modulation resistor (26
Time: 5
<- Previous Patent:Image scanner   |  Next Patent:Devices for hiding operations per... ->