Enhanced global navigation satellite system
US6201497A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1998 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Sep 19, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An enhanced positioning and navigational system for use within a building or otherwise separated by a line-of-sight barrier from an orbiting global navigation satellite system such as Navstar GPS. An antenna placed at a known location within line of sight of orbiting global navigation satellites receives global position and navigation signals and relays the signals through the line-of-light barrier to an identifier which identifies the signals and couples the signals for individual broadcast from each of an array of broadcast antennae located at known fixed locations within the building (behind the line-of-sight barrier). A receiver located within the building receives the signals broadcast from the antenna array and through use of a processor interprets the signals to provide position and navigation information to the user of the receiver. In an alternate embodiment, a signal generator generates navigation and positions information signals of a multiplicity of broadcast beacons. The information signals are separated into parcels corresponding to individual beacons and then are separately broadcast from each of all array of antennae located at fixed, known locations within a buildi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.