Direction and distance finder
US6933889B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2004 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | May 20, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/17
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a system and method for locating the direction and distance to a RF signal source, primarily for search and rescue. The system and method includes a RF signal locator and a graphical display residing on the signal locator. The receiver graphical display provides the user with an initial way point reading that includes directional and distance data associated with the beacon RF signal source. The directional and distance data is based upon the received RF signals. A processor within the locator receiver receives and measures RF signals emitted by the RF signal source. The locator advantageously provides continuous subsequent way point readings for the user, where the subsequent way point readings include directional and distance data associated with the RF signal source. The distance data provided by the subsequent way point readings is based upon a path loss slope of the received RF signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.