Methods and apparatus for providing location data with variable validity and quality
US8396484B2 · kind B2 · utility
2Cited by
9References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2008 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems and computer program products for determining a location of a device based on location information are described. In some implementations, location assist information may be requested so as to determine a location of sufficient quality to satisfy a requesting application. Upon receiving the location assist information, empherides from one or more visible sources may be requested. The location assist information may be used to determine the location of the device until the device has received and decoded the empherides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.