System and method for providing proximity information
US9351116B2 · kind B2 · utility
3Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2013 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Oct 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for privacy-preserving proximity detection comprising a grid-and-hashing paradigm, an optimal grid overlay and multi-level grids, which increases the detection accuracy while saving the wireless bandwidth. Furthermore, the present invention also provided a client-side location update scheme and the server-side update handling procedure for continuous proximity detection. The present invention is efficient and scalable under various system parameters and user moving speeds, in mobile geo-social networks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.