Altitude alert system

Details Altitude alert system Altitude alert system

1980-05-02

1982-10-19

Groody, James J.

Communications: electrical

Selective

Having indication or alarm

364433, G08G 500

Patent

active

043552943

ABSTRACT:
A system for providing a digital display of aircraft altitude, a selected altitude which it is desired the aircraft to assume and when the selected altitude is achieved, an audio and visual indication is produced. When within 1000 feet of the selected altitude, the visual indication gives the direction the aircraft must continue (i.e., up or down). When the aircraft exceeds a prescribed range, either above or below the selected altitude, an audio signal is produced. Barometric pressure obtained from air traffic control may be entered into the system and the measured altitude displayed will be automatically corrected.

REFERENCES:
patent: 3538264 (1970-11-01), Van Dyke
patent: 3735341 (1973-05-01), Hedrick
patent: 4006472 (1977-02-01), Greene
patent: 4093938 (1978-06-01), Argentieri et al.
patent: 4135143 (1979-01-01), Argentieri et al.
"Aircraft Signal Systems", AIEE Technical Paper, Rugge, Jan. 1944.
"The Promise of Air Safety", IEEE Spectrum, Jul. 1975, pp. 26-36.

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