Detection of electronic device presence using emitted bluetooth low energy signals
US12219423B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2024 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Feb 8, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/005
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods are disclosed to identify and/or count a number of electronic devices present in an area using emitted passive Bluetooth Low Energy (BLE) signals. The identification and/or counting of Bluetooth-enabled devices improves private and public security in determining human presence. Bluetooth-enabled devices passively emit BLE signals for inter-device communication in the form of Bluetooth Advertising Packets. The packets are sent by BLE-enabled devices to search for other known or compatible BLE devices, and advertise information such as media access control (MAC) addresses, device manufacturers, connection capabilities, and manufacturer-specific data. By passively listening to and decoding the observed BLE signals, access to the packets and the metadata they contain is gained. The disclosed methods can include use of other wireless data transfer protocols, such as Bluetooth and Cellular.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.