Institut Polytechnique De Grenoble

Arjowiggins Security

Mgi Digital Technology

Université De Savoie

Idyllic Technology

Etienne Perret

Smail Tedjini

Arnaud Maurice Vena

Edmond Abergel

Christophe Halope

Yann Boutant

Louis Gautier Le Boulch

Lionel Duvillaret

Nair Deepn Vasudevan

Frédéric Garet

Deepu Vasudevan Nair

This invention relates to a method for detecting chipless radio frequency identification devices (RFID), in particular chip detection, also referred to as chipless RFID tags. This invention also relates to the devices and tags which may be used in the claimed method.

Method for detecting chipless radio frequency identification devices (RFID)

The present invention relates to a set of security documents. Each security document within the set having an optical code, notably a barcode, which is neither connected nor coupled to any electronic chip that may be carried by the security document. The optical code on each security document within the set encodes the same information for the same optical reader. Each security document having different respective electromagnetic signature, these signatures being unique to each of the security documents.

Item comprising a barcode with an electromagnetic signature

A chipless RFID tag comprises a plurality of disjoint parallel conducting bands formed on a dielectric support, in which conducting bridges interlink neighboring conducting bands, the conducting bridges delimiting, between the conducting bands, portions of dielectric bands of distinct lengths, each portion of dielectric brand determining a resonant frequency of the tag, the set of resonant frequencies of the tag defining an identification code.

Chipless passive RFID tag

Growing community of inventors

Valence, France

Etienne Perret