RFID antenna design that can selectively enable and disable the antenna
First Claim
Patent Images
1. A radio frequency identification device comprising:
- a substrate having a first section and a second section;
an electrically conductive pattern having an electrically conductive first portion disposed on the first section of the substrate and an electrically conductive second portion disposed on the second section of the substrate, wherein the first portion and the second portion of the electrically conductive pattern are coupled together; and
an electrical circuit on the substrate electrically coupled to the first portion of the electrically conductive pattern, wherein the electrical circuit stores a first identification code;
wherein the first portion and the second portion are configured to be separable along a boundary to enable the first portion to operate as an antenna when the first section of the substrate is separated from the second section of the substrate.
4 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatuses for assembling and implementing tamper indicating RFID devices are presented. An RFID device includes a substrate, an electrically conductive pattern formed on the substrate configured to operate as an antenna by separating a portion of a first device section from a second device section, and an electrical circuit mounted on the substrate that is electrically coupled to the antenna. The electrical circuit stores an identification code.
11 Citations
31 Claims
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1. A radio frequency identification device comprising:
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a substrate having a first section and a second section; an electrically conductive pattern having an electrically conductive first portion disposed on the first section of the substrate and an electrically conductive second portion disposed on the second section of the substrate, wherein the first portion and the second portion of the electrically conductive pattern are coupled together; and an electrical circuit on the substrate electrically coupled to the first portion of the electrically conductive pattern, wherein the electrical circuit stores a first identification code; wherein the first portion and the second portion are configured to be separable along a boundary to enable the first portion to operate as an antenna when the first section of the substrate is separated from the second section of the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A radio frequency identification (RFID) device comprising:
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a substrate having a first section and a second section; an electrically conductive pattern having a first portion disposed on the first section of the substrate and a second portion disposed on the second section of the substrate of the substrate, wherein the first portion of the electrically conductive pattern is an antenna made inoperative by being coupled to the second portion, wherein the antenna is configured to become operative by separating the second section from the first section of the substrate; and an electrical circuit electrically coupled to the antenna.
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13. A method for assembling an RFID device comprising:
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forming an electrically conductive first portion of an electrically conductive pattern on a first section of a substrate and an electrically conductive second portion of the electrically conductive pattern on a second section of a substrate, wherein the first portion of the electrically conductive pattern is an antenna made inoperative by being coupled to the second portion; and mounting an electrical circuit on to the substrate, wherein the electrical circuit is electrically coupled to the antenna; wherein said forming step comprises; forming the first portion to be capable of operating as an antenna when the first section of the substrate is separated from the second section. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method for tamper-proofing an item, comprising:
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attaching an RFID device onto the item, wherein an electrically conductive pattern on a substrate of the device is configured to operate as an antenna by interacting with the item wherein the attaching further comprises; positioning the device such that interacting with the item separates a first section of the substrate having an electrically conductive first portion of the electrically conductive pattern from a second section of the substrate having an electrically conductive second portion of the electrically conductive pattern to enable the electrically conductive first portion to operate as an antenna. - View Dependent Claims (21, 22, 23, 24)
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25. A method for communicating with a radio frequency identification (RFID) device attached to an item, comprising:
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transmitting an RFID interrogation signal to be received by an electrically conductive pattern of the RFID device, wherein the electrically conductive pattern comprises an electrically conductive first portion disposed on a first section of a substrate of the RFID device and an electrically conductive second portion disposed on a second section of the substrate of the RFID device; interacting with the item such that the first section of the substrate is separated from the second section to enable the electrically conductive first portion to operate as an antenna; transmitting a second RFID interrogation signal to be received by the electrically conductive pattern of the RFID device; and receiving a response to the second RFID interrogation signal from the RFID device. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification