Multiple pass location processor
US6873290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2003 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Apr 15, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multiple pass location processing method, for use in a wireless location system (WLS), comprises identifying a received transmission as requiring multiple pass location processing whereby the WLS produces a first, lower quality location estimate and then subsequently produces a second, higher quality location estimate. The WLS then produces the first location estimate and provides it to a first location application, and then produces the second location estimate. The second location estimate may be a more accurate estimate than the first location estimate and/or of a higher confidence than the first location estimate. This method is suitable, but not limited, for use in connection with locating a wireless transmitter involved in an emergency services call and routing the call to a call center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.