Systems and methods for determining authenticity of substances
First Claim
1. A system for determining authenticity of substances, the system comprising:
- a plurality of radio frequency (RF) sensors distributed in a predefined location pattern relative to a location for placing a substance under analysis, each of the plurality of RF sensors being configured to transmit a response to an interrogation signal with a unique identifier;
an RF transmitter that transmits a plurality of sequences of interrogation signals over a plurality of different frequency bands at one or more power levels;
an RF receiver that receives responses to the plurality of sequences of interrogation signals transmitted from the plurality of RF sensors; and
a response pattern analyzer that determines response patterns for the plurality of RF sensors to the interrogation sequences and transmits a difference indicator if at least one of the determined response patterns varies from a predetermined signature of an authentic substance.
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Accused Products
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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Citations
23 Claims
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1. A system for determining authenticity of substances, the system comprising:
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a plurality of radio frequency (RF) sensors distributed in a predefined location pattern relative to a location for placing a substance under analysis, each of the plurality of RF sensors being configured to transmit a response to an interrogation signal with a unique identifier; an RF transmitter that transmits a plurality of sequences of interrogation signals over a plurality of different frequency bands at one or more power levels; an RF receiver that receives responses to the plurality of sequences of interrogation signals transmitted from the plurality of RF sensors; and a response pattern analyzer that determines response patterns for the plurality of RF sensors to the interrogation sequences and transmits a difference indicator if at least one of the determined response patterns varies from a predetermined signature of an authentic substance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for determining authenticity of substances, the system comprising:
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a plurality of means for responding to an interrogation signal with a wireless unique identifier, the plurality of means for responding being arranged in a predefined location pattern relative to a location for placing the substance under analysis; means for transmitting sequences of interrogation signals at a plurality of power levels; means for receiving the wireless unique identifier of the plurality of means for responding for the sequences of the interrogation signals; means for housing the plurality of means for responding such that a given wireless unique identifier does not interfere with another wireless unique identifier; means for determining response patterns to the interrogation sequences; means for determining if response patterns vary outside a predetermined signature of an authentic substance; and means for providing an indication if the response patterns vary outside the predetermined signature of an authentic substance. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for determining authenticity of a substance, the method comprising:
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transmitting sequences of interrogation signals in proximity of a known authentic substance over a plurality of different frequency bands at one or more power levels to a plurality of radio frequency (RF) sensors distributed in a predefined location pattern, each RF sensor being configured to respond to an interrogation signal with a unique identifier; registering a plurality of response pattern signatures for the known authentic substance based on first response patterns of the plurality of RF sensors to the sequence of interrogation signals; transmitting the sequences of interrogation signals in proximity of a substance under analysis that is purported to be the same as the known authentic substance over the plurality of different frequency bands at the one or more power levels to the plurality of RF sensors; analyzing second response patterns for each of the plurality of RF sensors to the sequence of interrogation signals, the second response patterns being associated with the substance under analysis; and transmitting a difference indicator if at least one of the second response patterns varies from a predetermined threshold associated with the plurality of registered response pattern signatures. - View Dependent Claims (20, 21, 22, 23)
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Specification