Method and apparatus for locating a remote unit
US6996403B2 · kind B2 · utility
5Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2004 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Dec 2, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0289
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for locating a remote unit (or node) is provided herein. During operation, location-finding equipment (106) will determine a gross location of non-located nodes (104) by determining distances of the nodes (104) to reference nodes (105). Additionally an error estimate in the location for each node is determined. A first subset of nodes having relatively lower error estimates are “promoted” to reference nodes, and a second subset of nodes having higher error estimates are again located based on a distance to the newly-promoted reference nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.