Method and apparatus for position estimation using trajectory
US9146299B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2013 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Aug 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0263
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques for position estimation, e.g., of a mobile communication device, using trajectory are described herein. A method for estimating position of a mobile device described herein includes obtaining a routing graph corresponding to an area, wherein the routing graph indicates traversable paths through the area; collecting trajectory information corresponding to movement of the mobile device through the area; forming a trajectory graph from the trajectory information; comparing the trajectory graph to at least one subset of the routing graph to determine at least one matching subset of the routing graph; and estimating the position of the mobile device based at least in part on the at least one matching subset of the routing graph.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.