Local positioning system
US6995708B2 · kind B2 · utility
31Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2002 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Nov 1, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/48
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method to determine position of a user includes sniffing for one or more earth-based media; and if the one or more earth-based media exists, using an earth-based positioning system (PS) receiver associated with one of the media and otherwise using a satellite-based PS receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.