Acquisition of navigation assistance information for a mobile station
US9229089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2010 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Jun 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Navigation assistance information for a mobile station is acquired based on a feature descriptor of an image of a visual beacon captured by the mobile station. The navigation assistance information includes locations of neighboring visual beacons, locations of wireless positioning resources; user environmental context information. The navigation assistance information may then be used to assist in navigating within the local environment. The visual beacon may be an artificial feature, such as a QR code or other type of matrix or bar code or a natural feature, such as a statute or architectural detail. The mobile station may request navigation assistance by transmitting the feature descriptor to a server. The server retrieves the navigation assistance information from a database based on the feature descriptor and optionally location information, which may also be provided in the navigation assistance request, and transmits the navigation assistance information to the mobile station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.