Radio frequency identification (RFID) tag location verification using acousto-magnetic detection
US12272221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2022 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Apr 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2448
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Example implementations include a method, apparatus, and computer-readable medium for electronic article surveillance (EAS), comprising transmitting an acousto-magnetic (AM) interrogation signal into an AM interrogation zone of an EAS system. The AM interrogation zone and a wireless communication zone overlapping to form a zone of interest. The wireless communication zone employing a wireless communication technology other than AM. Indicating, by the EAS system, a presence of a first tag of the EAS system in the zone of interest upon a concurrent detection of both i) a response signal of the first tag via the wireless communication technology and ii) an AM response signal of the first tag in response to the AM interrogation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.