Geo-fence
US8229473B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 2011 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Jun 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to methods and apparatus for detecting when a mobile communication device exits a defined geographical area wherein the defined geographical area includes one or more cells. A cell that the mobile communication device is in communication with is identified and it is determined if the identified cell is a boundary cell, wherein a boundary cell is a cell in which a boundary of the defined geographical area is within the cell. The location of the mobile communication device is determined if the identified cell is a boundary cell and the location of the mobile communication device is compared with the boundary of the defined geographical area to detect if the mobile communication device has exited the defined geographical area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.