Identifying a geographically nearby mobile computing device
US8224351B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2011 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Sep 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In general, the subject matter described in this specification can be embodied in methods, systems, and program products for identifying proximity of a mobile computing device to another mobile computing device. A computing system determines that a set of mobile computing devices are geographically proximate to a first mobile computing device based on identifying that each of the mobile computing devices received a first type of signal from an emitting device for which the first mobile computing device also received the first type of signal. The computing system determines a subset of the mobile computing devices that share a physical space with the first mobile computing device based on identifying that each of the mobile computing devices emitted a second type of signal that was detected by the first mobile computing device, or detected the second type of signal that was emitted by the first mobile computing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.