Energy efficient location tracking on smart phones
US9913220B2 · kind B2 · utility
0Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2013 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Jul 7, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A GPS-enabled cellular electronic device is operated in an indoor mode. An increase in strength of a cellular signal is detected at the GPS-enabled cellular electronic device. Responsive at least to the increase in cellular signal strength, the GPS-enabled cellular electronic device is transitioned to an outdoor testing mode. Detecting is carried out to determine whether movement of the GPS-enabled cellular electronic device occurs during the outdoor testing mode. If so, the GPS-enabled cellular electronic device is transitioned to an outdoor mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.