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US 2011/0254665 A1Published application
Reversibly deactivating a radio frequency identification data tag
AssigneeBinforma Group Limited Liability Company
InventorsJeffrey Dean Lindsay, Herb Flores Velazquez, Fung-Jou Chen, Eric Francis Wagner, John Christian Onderko
Life of this patent
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Abstract
Reversibly activating or deactivating a radio frequency identification (RFID) data tag comprising a circuit responsive to an environmental factor. An RFID tag includes an RFID chip for storing an RFID code, an antenna for communicating a radio frequency (RF) signal, and an environmentally sensitive switch.
Claims22
1-16. (canceled)
A method of activating an RFID tag, the method comprising:
- selectively modifying an environmentally sensitive switch of an RFID tag from a first condition to a second condition in response to a predetermined environmental factor,
- wherein the switch couples a circuit to an antenna and when the switch is in the first condition the RFID tag is disabled from sending or receiving a signal and when the switch is in the second condition the RFID tag is enabled for sending or receiving the signal.
A method of activating an RFID tag, the method comprising:
- activating an RFID reader to communicate with the RFID tag;
- and
- activating the RFID tag via a switch that is actuatable in response to a predetermined environmental factor, the RFID tag having an antenna and a circuit, wherein actuating the switch operably couples the antenna to the circuit to activate the RFID tag to communicate with the RFID reader.
A method of reversibly activating an RFID tag, the method comprising:
- attempting to scan the RFID tag with an RFID scanner, wherein the RFID tag is carried by an article and includes a switch that operably couples a circuit to an antenna for receiving a signal from the RFID scanner and emitting a signal to the RFID scanner, the switch having a first switch component movable relative to a second switch component between first and second relative positions, and wherein the switch is responsive to the relative positions of the first and second switch components;
- and
- automatically reversibly activating the RFID tag in response to a predetermined environmental factor related to a manner in which the article is used, wherein the environmental factor affects the relative positions of the first and second switch components.
Dependencies are inferred from the claim text.