Memoryless artificial horizon generator

Details Memoryless artificial horizon generator Memoryless artificial horizon generator

1982-06-18

1984-11-20

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340724, 340747, 340974, G09G 116

Patent

active

044841892

ABSTRACT:
An artificial horizon display generator determines either sky shading or ground shading in real time as each pixel of a raster display is generated. Transition line parameters are specified by host processor, whereupon the display generator computes whether the raster line currently being generated will intersect the horizon boundary line, and if so, at what X-Y transition point. Pixels generated prior to the transition point are of the initial shading; pixels generated subsequent to the transition point are of the opposite shading.

REFERENCES:
patent: 3521228 (1970-07-01), Congleton et al.
patent: 3668622 (1972-06-01), Gannett et al.
patent: 3882446 (1975-05-01), Brittian
patent: 4149148 (1979-04-01), Miller et al.
patent: 4189743 (1980-02-01), Schure et al.
patent: 4371872 (1983-02-01), Rossman

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