Wireless assisted altitude measurement
US6518918B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | May 11, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2012
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a communication device and method for estimating a more accurate vertical position or altitude of a communication device using atmospheric pressure measurements. In one embodiment, a first communication device comprises a pressure sensor for measuring local atmospheric pressure at the first communication device and a transceiver for communicating with a second communication device, wherein the transceiver may be operable to receive barometric calibration information for calibrating a local atmospheric pressure measured at the first communication device and/or to transmit the measured local atmospheric pressure to the second communication device. The first communication device may further comprise a processor for estimating an altitude using the measured local atmospheric pressure and received barometric calibration information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.