Method and apparatus for geographic positioning
US8040275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2009 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Mar 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Aspects of the disclosure provide methods for positioning transmitting stations, such as cell towers. Further, aspects of the disclosure provide a database for storing information of the transmitting stations. In addition, aspects of the disclosure provide methods for positioning a moving object having a receiver based on the database of the transmitting stations and wireless signals transmitted by the transmitting stations. The methods increase in-transit location visibility of shipment while reducing GNSS usage, and thus reduce power consumption. The methods allow positioning receiving stations when GNSS signals may not be available, such as due to interference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.