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US 9,317,726 B2Granted
Radio frequency identification sensor assembly
AssigneeAvery Dennison Corporation
InventorIan J. Forster
Life of this patent
Estimating the term…
Abstract
In accordance with one embodiment, an RFID sensor assembly comprises a sensing RFID chip and a reference RFID chip. The sensing RFID chip and the reference RFID chip are configured for electrical coupling to an electronic component via a coupling arrangement. The coupling arrangement of the sensing RFID chip is configured to vary a coupling property in response to a sensed parameter.
Claims16
An RFID system comprising:
- an RFID sensor assembly with at least one pair of RFID chips in which at least one chip of the pair is a sensing RFID chip and at least one chip of the pair is a reference chip;
- and
- an RFID interrogator wherein the interrogator includes an RFID reader and a first antenna such that the reader is configured to vary a power and frequency of a signal transmitted to the at least one pair of RFID chips;
- wherein the at least one pair of RFID chips is coupled to a second antenna and the sensor assembly detects any combination of sensed parameters.
1 more element
A method of utilizing a RFID sensor assembly comprising:
- providing a RFID sensor assembly having at least one pair of RFID chips, and a RFID interrogator wherein the interrogator includes a RFID reader and a first antenna with the at least one pair of RFID chips coupled to a second antenna such that the reader is configured to vary a power and frequency of a signal transmitted to the at least one pair of RFID chips;
- transmitting signals to the RFID sensor assembly via the first antenna;
- receiving the signals by the second antenna;
- directing those signals to at least one the pair of RFID chips;
- and
- determining a sensed parameter such that at least one RFID chip is configured to vary a coupling property in response to a sensed parameter.
3 more elements
Dependencies are inferred from the claim text.