System and method for locating an object using global positioning system receiver
US6657586B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2002 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | May 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2205/002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for locating an object uses a plurality of tag signal readers that receive wireless tag signals from a tag transmitter coupled with an object to be located. The tag signals include data indicating the identity of the object to which the tag transmitter is coupled. Each tag signal reader includes a global positioning system receiver associated therewith for determining the location of a tag signal reader. A wireless transmitter transmits a wireless data signal incorporating the wireless tag signal and location of the tag signal reader to a location processor, which receives the wireless data signals and determines which tag signals are first-to-arrive signals and conducts differentiation of the first-to-arrive signals to locate a tag transmitter and object coupled therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.