Radio frequency antenna and system for presence sensing and monitoring
US11704955B2 · kind B2 · utility
1Cited by
32References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2020 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Sep 9, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless device system employs short-range wireless communication to require the proximity of a user device to a defined area prior to communicating a request or notification to the wireless user device. The system authenticates a request and the proximity of the user to or within the defined area prior to transmitting a command, request, or notification to the user or a third party. Additionally, the system uses an access node configured to shape the radiation pattern of short-range wireless communications to better determine the position of a user proximate in or around a defined area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.