Systems and methods for radio frequency identification enabled deactivation of acousto-magnetic ferrite based marker
US11011037B2 · kind B2 · utility
2Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2019 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Aug 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/246
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Systems and methods for operating a marker. The method comprising: receiving, by a Radio Frequency Identification (“RFID”) element of the marker, an RFID deactivation signal transmitted from an external device; and responsive to the RFID deactivation signal, supplying power from the RFID element to a detuner element so that the detuner element switches from a first state to a second state. The marker's resonant frequency is changed to a first value that falls outside of an Electronic Article Surveillance (“EAS”) systems operating frequency range when the detuner element switches from the first state to the second state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.