Method and system for interrogating multiple saw...

Details Method and system for interrogating multiple saw... Method and system for interrogating multiple saw...

G - Physics

06

K

G06K 7/00 (2006.01) G01S 13/75 (2006.01)

Patent

CA 2480312

The present invention provides a system for avoiding code collisions from multiple SAW identification tags and a method of operating such system. In one embodiment the invention provides for (1) focusing an interrogation pulse to within a defined space; and (2) discriminating between coded responses returned from tags located within such defined space.

La présente invention concerne un système destiné à éviter des collisions de code de multiples étiquettes d'identification à ondes acoustiques de surface (SAW) et un procédé de fonctionnement de ce système. Dans un mode de réalisation, cette invention permet (1) de focaliser une impulsion d'interrogation à l'intérieur d'un espace défini et, (2) d'établir une distinction entre des réponses codées retournées par des étiquettes situées à l'intérieur de ces espaces définis. .

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