Self-detaching anti-theft device using direct and harvested resonant energy
US12101138B2 · kind B2 · utility
0Cited by
19References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2020 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Feb 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for operating a security tag. The methods comprise: receiving a first wireless signal transmitted from a transmit circuit using a receive circuit of the security tag; inducing a voltage in the receive circuit of the security tag while the first wireless signal is being received; performing operations by the controller to selectively close a switch when the voltage is being induced in the receive circuit; and causing a release of a mechanical component of the security tag by allowing energy to flow from the receive circuit to the mechanical component when the switch is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.