Patent
RF release mechanism for hard tag
Andre Cote,Farrokh Abadi +1 more
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TLDR
A releasable security tag for attachment to an article of merchandise includes: a locking mechanism with a release for attaching the tag to the article of clothing, an EAS resonant circuit or an RFID circuit, an ambient RF energy harvesting circuit; a release signal detection circuit coupled to and powered by the ambient RF EH circuit; and an electro-mechanical actuator electrically coupled to the release signal detector circuit as discussed by the authors.Abstract:
A releasable security tag for attachment to an article of merchandise includes: a locking mechanism with a release for attaching the tag to the article of merchandise; an EAS resonant circuit or an RFID circuit for responding to a first RF signal at a predetermined frequency corresponding to the resonant circuit or to the RFID circuit; an ambient RF energy harvesting circuit; a release signal detection circuit coupled to and powered by the ambient RF energy harvesting circuit and an electro-mechanical actuator electrically coupled to the release signal detection circuit. The electro-mechanical actuator releases the locking mechanism whenever the release signal detection circuit receives a release signal.read more
Citations
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Patent
Radio frequency identification transponder for communicating condition of a component
John D. Downie,Richard E. Wagner,Leo Nederlof,James Scott Sutherland,Mark P. Taylor,Matthew S. Whiting +5 more
TL;DR: In this paper, a passive RFID transponder assembly that includes a condition responsive device adapted to read a condition relating to the component that is associated with the RFID Transponder assemblies is described.
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Radio frequency identification (rfid) in communication connections, including fiber optic components
TL;DR: In this paper, the communication component maintains its connection type such that it is compatible with a complementary communication component connection type for backwards compatibility while also being RFID-equipped, and the circuit may also be provided in a substrate containing one or more electrical contacts coupled to the circuit such that a wired coupling is established with wired contacts provided in another communication component when connected.
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TL;DR: In this paper, a component is adapted to communicate with another mating component to associate sensor data with identity information of the mating component, which can be communicated remotely via radio-frequency communications employing RF identification devices (RFIDs).
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RFID Condition Latching
TL;DR: In this paper, a passive radio-frequency identification (RFID) system has an RFID reader that communicates with and provides power to a RFID tag, and the reader senses and records the activation event and communicates this activation event once power has been restored.
References
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Patent
Energy harvesting circuits and associated methods
TL;DR: An inherently tuned antenna has a circuit for harvesting energy transmitted in space and includes portions that are structured to provide regenerative feedback into the antenna to produce an antenna which has an effective area substantially greater than its physical area as discussed by the authors.
Patent
Energy harvesting circuit
TL;DR: In this article, the authors present a station having a means for receiving ambient energy from the environment and energizing power storage devices of objects of interest comprising one or more antennae and circuitry for converting said ambient energy into DC power for energizing such devices.
Patent
Method and system for energy reclamation and reuse
TL;DR: In this paper, the integration of antennas and electronics for harvesting ubiquitous radio frequency (RF) energy, transforming such electromagnetic energy into electrical power, and storing such power for usage with a wide range of electrical/electronic circuits and modules.
Patent
Resonant tag and deactivator for use in an electronic security system.
TL;DR: In this paper, a tag circuit is constructed such that the capacitor plates (10, 12, 22, 24, 24) are closer to one another at a selected point (20, 32), which provides a breakdown mechanism within the resonant structure of the tag.
Patent
Recharging method and apparatus
Marlin H. Mickle,Christopher C. Capelli,Harold Swift,Leonid Matts,Minhong Mi,Charles E. Greene +5 more
TL;DR: In this article, the authors present an apparatus and an associated method for remotely energizing power storage devices, which can be effected through the use of RF energy from a base station, ambient energy or ultra wide band energy.