Electronic shelf label (ESL) antenna design
US11275984B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Aug 21, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/266
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
According to various aspects and technical advantages, an apparatus for electronic shelf labels includes a controller circuit for communicating with communication devices using a contactless communication protocol, a set of two or more antenna coils, each antenna coil located at a known position relative to the controller circuit, and a switch for selectively coupling the controller circuit to one or more of the set of antenna coils. The controller circuit is configured to determine a physical location of a communication device based on which antenna coil from the set of antenna coils the communication device is using to communicate with the controller circuit
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.