Reflection-based location detection
US9179285B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2014 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Jul 3, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
There is provided a system including a mobile device configured to transmit a first advertisement to a listening device and a repeater device, receive a data advertisement from the listening device in response to transmitting the first advertisement to the listening device, the data advertisement including a time difference between the listening device receiving the first advertisement and the listening device receiving a second advertisement transmitted from the repeater device in response to transmitting the first advertisement from the mobile device to the repeater device, and determine a location of the mobile device using the data advertisement including the time difference. In the system, the listening device and the repeater device may each include Bluetooth low energy devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.