Aircraft ground proximity warning instrument
US3946358A · kind A · utility
52Cited by
12References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Jun 19, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G5/54
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An aircraft instrument for warning the pilot that the aircraft is in an unsafe condition in proximity to the ground. The instrument has inputs representing aircraft configuration, flight condition with respect to the ground, and glide slope. Detector circuits process the inputs and give a warning of unsafe proximity to the ground. The boundary conditions for the warning are selected to avoid false warnings. A glide slope detector distinguishes between a valid glide slope signal and spurious signals, without need for pilot input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.