SELF-DETACHABLE RFID TAGS
First Claim
1. A method for operating a Radio Frequency Identification (“
- RFID”
) tag, comprising;
inducing current through a magnetic loop or solenoid disposed within the RFID tag that is caused by a inductive field, a magnetic field or a Radio Frequency (“
RF”
) field being generated within a surrounding environment;
using the current which is induced through the magnetic loop or solenoid to charge a capacitor disposed within the RFID tag;
receiving a detaching signal at the RFID tag;
electrically connecting the capacitor to a detaching unit disposed within the RFID tag in response to the detaching signal; and
activating the detaching unit by supplying current from the capacitor to the detaching unit, whereby the RFID tag can be detached from an article.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for operating an RFID tag. The methods comprise: inducing current through a magnetic loop or solenoid disposed within the RFID tag that is caused by a inductive field, a magnetic field or an RF field being generated within a surrounding environment; using the current which is induced through the magnetic loop or solenoid to charge a capacitor disposed within the RFID tag; decreasing the amount of current induced through the magnetic loop or solenoid; receiving a detaching signal at the RFID tag; electrically connecting the capacitor to a detaching unit disposed within the RFID tag in response to the detaching signal; and activating the detaching unit by supplying current from the capacitor to the detaching unit, whereby the RFID tag can be detached from an article.
31 Citations
20 Claims
-
1. A method for operating a Radio Frequency Identification (“
- RFID”
) tag, comprising;inducing current through a magnetic loop or solenoid disposed within the RFID tag that is caused by a inductive field, a magnetic field or a Radio Frequency (“
RF”
) field being generated within a surrounding environment;using the current which is induced through the magnetic loop or solenoid to charge a capacitor disposed within the RFID tag; receiving a detaching signal at the RFID tag; electrically connecting the capacitor to a detaching unit disposed within the RFID tag in response to the detaching signal; and activating the detaching unit by supplying current from the capacitor to the detaching unit, whereby the RFID tag can be detached from an article. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- RFID”
-
11. A Radio Frequency Identification (“
- RFID”
) tag, comprising;a magnetic loop or solenoid through which a current is induced when the RFID tag is within a inductive field, a magnetic field or a Radio Frequency (“
RF”
) field being generated within a surrounding environment;an internal capacitor that is charged by the current which is induced through the magnetic loop or solenoid; an antenna configured to receive a detaching signal; and a detaching unit to which the internal capacitor is electrically connected in response to the detaching signal, where the detaching unit is activated when current is supplied thereto from the internal capacitor so that the RFID tag can be detached from an article. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- RFID”
Specification