System and method of locating a radio frequency (RF) tracking device using a calibration routine
US9482741B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2014 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Mar 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Position tracking systems and methods for tracking a physical location of a radio frequency (RF) transmitter include an RF transmitter transmitting an RF signal from a plurality of known locations. At least four RF receiver antennae are disposed at unknown locations within range of the RF transmitter to receive the RF signals transmitted from the plurality of known locations. A receiver station in communication with the at least four RF receiver antennae initially calibrates a relative position of each RF receiver antenna with respect to the other RF receiver antennae based on the plurality of known locations and on information acquired in response to the RF signals received at the at least four RF receiver antennae.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.