Transmitter location for ultra-wideband, transmitted-reference CDMA communication system
US7499711B2 · kind B2 · utility
63Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2003 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Oct 6, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method involve determining the location of objects within an area of interest using wireless signals. The system includes at least three base stations communicating with a central processor and a plurality of mobile devices. Further, at least one fixed beacon transmitter of known location may be provided. The mobile devices transmit a wireless signal to the base stations, which then determine a location of the mobile devices based on time difference of arrival information between the mobile devices measured at all the base stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.