G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 3/10 (2006.01) G01V 3/12 (2006.01) H01Q 1/22 (2006.01)
Patent
CA 2465651
The present invention relates to a dual antenna coil (112, 114) identification system, and more particularly, to an interrogator (100) or reader for inductively coupling to a transponder and thereby extract data from the transponder. The magnetic field required to energize a transponder is generated by currents flowing through two essentially identical but opposite phased antenna coils arranged near the area where tags are to be read.
la présente invention concerne un système d'identification à double bobine d'antenne et plus particulièrement, un dispositif d'interrogation ou de lecture pour couplage inductif avec un transpondeur et extraction de données dans ledit transpondeur. Le champ magnétique nécessaire pour exciter un transpondeur est créé par des courants qui traversent deux bobines d'antenne essentiellement identiques, mais à phase opposée, disposées à proximité de la zone de lecture des drapeaux. .
Ward Timothy Jon
Ward William H. Jr.
Avid Identification Systems Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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