Method for forming a radio frequency responsive target and...

G - Physics – 01 – S

Patent

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Details

IPC codes

G01S 13/74 (2006.01) G01S 13/75 (2006.01) G01S 13/76 (2006.01)

Type

Patent

Patent number

CA 2273970

Description

A method and apparatus for authenticating an object (10) which produces an analog radio frequency signature (36) in response to an interrogating signal (26). The response signal is converted to a code world and is compared to a plurality of valid code words to determine if the object is authentic. The radio frequency responsive targets have a pattern of thin dipoles (510a-510n) which produce a composite analog radio frequency in response to an interrogating signal.

L'invention concerne un procédé ainsi qu'un dispositif destinés à authentifier un objet (10) produisant une signature de fréquence radioélectrique analogique (36) en réponse à un signal d'interrogation (26). Le signal de réponse est converti en un mot de code et est comparé à une pluralité de mots de code valides, aux fins de détermination de l'authenticité de l'objet. Les cibles sensibles aux fréquences radioélectriques présentent un motif de dipôles minces (510a-510n) produisant une fréquence radioélectrique analogique et composite en réponse à un signal d'interrogation.

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