Person-centric activation of radio frequency identification (RFID) tag
First Claim
1. A radio frequency identification (RFID) tag, comprising:
- an antenna configured to receive an interrogation signal;
an integrated circuit coupled to the antenna, the integrated circuit configured to respond to the interrogation signal if the RFID tag is enabled, and configured to not respond to the interrogation signal if the RFID tag is not enabled; and
skin proximity activation circuitry that is configured to enable the RFID tag responsive to the RFID tag being placed into contact with skin, or to disable the RFID tag responsive to the RFID tag not being in contact with the skin, the skin proximity activation circuitry configured to have an open circuit when the RFID tag is not in contact with the skin, the skin acting to complete the open circuit when the RFID tag is in contact with the skin.
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Accused Products
Abstract
In embodiments of person-centric RFID tag activation, an RFID tag is configured so as to be active or inactive based on proximity to a person. An RFID tag includes an integrated circuit (IC), an antenna coupled to the IC, and skin proximity activation circuitry. For example embodiments, the skin proximity activation circuitry is configured to establish an active state for the RFID tag if proximate to skin and an inactive state if not proximate to skin. For an example implementation, an RFID tag is placed in an operationally active state in which an interrogation signal is detectable by an IC if at least one skin contact point is touching skin. For another example implementation, an RFID tag is placed in a communicatively active state in which a received interrogation signal may trigger the sending of a response signal if a detected temperature comports with a human-appropriate range of temperatures.
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Citations
20 Claims
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1. A radio frequency identification (RFID) tag, comprising:
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an antenna configured to receive an interrogation signal; an integrated circuit coupled to the antenna, the integrated circuit configured to respond to the interrogation signal if the RFID tag is enabled, and configured to not respond to the interrogation signal if the RFID tag is not enabled; and skin proximity activation circuitry that is configured to enable the RFID tag responsive to the RFID tag being placed into contact with skin, or to disable the RFID tag responsive to the RFID tag not being in contact with the skin, the skin proximity activation circuitry configured to have an open circuit when the RFID tag is not in contact with the skin, the skin acting to complete the open circuit when the RFID tag is in contact with the skin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 20)
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10. A radio frequency identification (RFID) tag, comprising:
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a first skin contact point; a second skin contact point; an integrated circuit including a first antenna terminal and a second antenna terminal, the second antenna terminal of the integrated circuit coupled to the second skin contact point, the integrated circuit configured to be enabled when the first contact point and the second contact point contact a surface of skin and configured to be disabled when the first contact point or the second contact point do not contact the surface of skin, the integrated circuit configured to have an open circuit when the RFID tag is not in contact with the surface of skin, the surface of skin acting to complete the open circuit when the RFID tag is in contact with the surface of skin; and an antenna including a first antenna end and a second antenna end, the first antenna end coupled to the first skin contact point and the second antenna end coupled to the first antenna terminal of the integrated circuit. - View Dependent Claims (11, 12, 13)
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14. A method, comprising:
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receiving an interrogation signal with an antenna of a radio frequency identification (RFID) tag; responding to the interrogation signal based on an enablement of the RFID tag, said responding with an integrated circuit that is coupled to the antenna if the RFID tag is enabled, and not responding to the interrogation signal if the RFID tag is disabled; and establishing enablement of the RFID tag if the RFID tag is in contact with skin, or disablement of the RFID tag if the RFID tag is not in contact with the skin by having an open circuit of the RFID tag when the RFID tag is not in contact with the skin, the skin acting to complete the open circuit when the RFID tag is in contact with the skin. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification