Systems and methods for determining authenticity of substances

Details Systems and methods for determining authenticity of substances Systems and methods for determining authenticity of substances

2011-06-21

2011-06-21

Lee, Benjamin C (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S539100, C340S010100

Reexamination Certificate

active

07965183

ABSTRACT:
One embodiment of the present invention includes a system for determining authenticity of substances. The system comprises a plurality of RF sensors distributed in a predefined location pattern relative to a location for placing a substance under analysis. Each of the RF sensors is configured to transmit a response to an interrogation signal with a unique identifier. The system also comprises an RF transmitter that transmits sequences of interrogation signals over different frequency bands at one or more power levels and an RF receiver that receives responses to the sequences of interrogation signals transmitted from the RF sensors. The system further comprises a response pattern analyzer that determines response patterns for the RF sensors to the interrogation sequences and transmits a difference indicator if at least one of the determined response patterns varies from as predetermined signature of an authentic substance.

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patent: 2005/0037776 (2005-02-01), Perez-Breva et al.
patent: 2009/0112101 (2009-04-01), Furness et al.

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