RFID switching
First Claim
Patent Images
1. A method, comprising:
- receiving a first excitation signal at a switch that includes a radio frequency identification (RFID) tag, the RFID tag indicating presence of an object at the switch by sending a response signal;
permitting removal of the object from the switch; and
preventing the RFID tag from receiving a second excitation signal by situating a disabling material into close proximity of the RFID tag.
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Accused Products
Abstract
Various method and apparatus embodiments involving RFID switching are disclosed. One method embodiment, among others, includes receiving an excitation signal at a switch associated with a radio frequency identification (RFID) tag and a disabling material, and changing a state of the RFID tag with the switch based on proximity of the disabling material to the RFID tag.
57 Citations
33 Claims
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1. A method, comprising:
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receiving a first excitation signal at a switch that includes a radio frequency identification (RFID) tag, the RFID tag indicating presence of an object at the switch by sending a response signal; permitting removal of the object from the switch; and preventing the RFID tag from receiving a second excitation signal by situating a disabling material into close proximity of the RFID tag. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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sending an excitation signal to a switch, the switch including a disabling material and a radio frequency identification (RFID) tag, the RFID tag indicating presence of an object at the switch; determining whether a reply to the excitation signal is received; and in response to determining that the reply to the excitation signal is not received, determining that the object was removed from the switch, wherein the disabling material is situated in close proximity of the RFID tag. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A radio frequency identification (RFID) switch, comprising:
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a first member comprising a disabling material; a second member in moveable relationship with respect to the first member; and a radio frequency identification (RFID) tag coupled to the second member, the first member being removably coupled to an object such that when the object is uncoupled from the first member, the disabling material of the first member is introduced into proximity of the RFID tag coupled to the second member thereby preventing the RFID tag from communicating a signal to a desired reader. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A method, comprising:
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receiving an excitation signal at a switch associated with a radio frequency identification (RFID) tag and a disabling material; and changing a state of the RFID tag with the switch based on proximity of the disabling material to the RFID tag, wherein changing comprises changing the RFID tag to a first state if the disabling material is in close proximity to the RFID tag, wherein the close proximity comprises a separation distance between the RFID tag and the disabling material of approximately 0.125 inches. - View Dependent Claims (27)
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28. A system, comprising:
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means for receiving an excitation signal at a switch associated with a radio frequency identification (RFID) tag and a disabling material; and means for changing a state of the RFID tag with the switch based on proximity of the disabling material to the RFID tag, wherein changing comprises changing the RFID tag to a first state if the disabling material is in close proximity to the RFID tag, wherein the close proximity comprises a separation distance between the RFID tag and the disabling material of approximately 0.125 inches. - View Dependent Claims (29)
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30. A method, comprising:
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sending an excitation signal to a switch associated with a radio frequency identification (RFID) tag and a disabling material; and receiving a response to the excitation signal based on a separation distance between the disabling material and the RFID tag, the separation distance based on a change in the switch, wherein no response is received if the disabling material is in close proximity to the RFID tag, wherein the close proximity comprises a separation distance between the RFID tag and the disabling material of approximately 0.125 inches. - View Dependent Claims (31)
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32. A system, comprising:
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means for sending an excitation signal to a switch associated with a radio frequency identification (RFID) tag and a disabling material; and means for receiving a response to the excitation signal based on a separation distance between the disabling material and the RFID tag, the separation distance based on a change in the switch, wherein no response is received if the disabling material is in close proximity to the RFID tag, wherein the close proximity comprises a separation distance between the RFID tag and the disabling material of approximately 0.125 inches. - View Dependent Claims (33)
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Specification