Inter-network operation of multiple location networks
US7474265B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Aug 16, 2006 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Feb 20, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/43
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention discloses a system and method for allowing a position receiver to determine position solutions from positioning signals from a plurality of autonomous positioning networks, each of which is synchronized to a different timebase. Each of the plurality of autonomous networks comprises one or more positioning-unit device, which is a specialized transceiver capable of receiving and interpreting reference positioning signals from a reference transmitter, a position receiver, another positioning-unit device or all. At least one positioning-unit device within a first autonomous positioning network receives positioning signals from at least one positioning-unit device from a second adjacent autonomous positioning network and measures the timebase difference between the second network and the first network and subsequently calculates a timebase clock correction. The at least one positioning-unit device within the first network incorporates the timebase clock correction into its positioning signals for transmission. Other positioning-unit devices within the first network receive and replay the positioning signals incorporating the timebase clock correction. A position re…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.