Mobile device and method for determining location of mobile device
US7042391B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Jun 21, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0252
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mobile device, for determining location in a wireless network, includes a motion detector for detecting motion of the mobile device; a memory for storing wireless signal strength calibration data comprising a list of wireless signal strengths and known locations; a location detection module for measuring a wireless signal strength of any received network radio signals and for determining the location of the mobile device with reference to the wireless signal strength calibration data; and a location correction module, for applying a statistical correction to the measured wireless signal strength determined by the location detection module when the motion detector detects that the mobile device is moving less than a threshold amount. The mobile device may further include an orientation detector for detecting the orientation of the mobile device, which can be compared with orientation data stored in the calibration data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.