Printing system architecture for encoding chip-less RFID tags in real time
First Claim
1. A method for encoding chipless RFID tags in real-time, comprising:
- exposing a chipless RFID transponder to a conductive material, the RFID transponder comprisingan antenna and a plurality of resonant structures that together define a first spectral signature, wherein each of the plurality of resonant structures comprises a respective one of a frequency domain;
wherein the exposing comprises depositing the conductive material on at least one of the resonant structures to short the at least one of the resonant structures,wherein the remainder of the plurality of resonant structures not shorted by the conductive material define a second spectral signature for the RFID transponder, andwherein the conductive material comprises conductive ink, and the depositing comprises ejecting the conductive ink from an inkjet printhead onto the at least one resonant structure.
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Accused Products
Abstract
Provided is a method for encoding chipless RFID tags in real-time. The method includes exposing a chipless RFID transponder to a conductive material, the RFID transponder comprising an antenna and a plurality of resonant structures, the plurality of resonant structures together defining a first spectral signature. Each of the plurality of resonant structures includes a respective one of a frequency domain. The method also includes depositing a conductive material on at least one of the resonant structures to short the at least one of the resonant structures. The remainder of the plurality of resonant structures that are not shorted by the conductive material define a second spectral signature for the RFID transponder.
24 Citations
23 Claims
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1. A method for encoding chipless RFID tags in real-time, comprising:
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exposing a chipless RFID transponder to a conductive material, the RFID transponder comprising an antenna and a plurality of resonant structures that together define a first spectral signature, wherein each of the plurality of resonant structures comprises a respective one of a frequency domain; wherein the exposing comprises depositing the conductive material on at least one of the resonant structures to short the at least one of the resonant structures, wherein the remainder of the plurality of resonant structures not shorted by the conductive material define a second spectral signature for the RFID transponder, and wherein the conductive material comprises conductive ink, and the depositing comprises ejecting the conductive ink from an inkjet printhead onto the at least one resonant structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for customizing a generic RFID transponder, comprising:
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changing a resonance of at least one resonant structure of the RFID transponder by exposing the at least one resonant structure to a conductive material, wherein the exposing comprises depositing the conductive material on the at least one resonant structure via inkjet printing; and after depositing the conductive material, removing portions of the at least one resonant structure on which the conductive material was not deposited, wherein the resonant structure is electrically shorted such that its resonance shifts from a first resonance to a second resonance. - View Dependent Claims (21, 22, 23)
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Specification