Communications: electrical – Aircraft alarm or indicating systems – Nonalarm flight indicator
Patent
1992-10-13
1994-03-22
Swarthout, Brent
Communications: electrical
Aircraft alarm or indicating systems
Nonalarm flight indicator
340973, 345 9, G01C 2100
Patent
active
052968545
ABSTRACT:
A virtual image display system provides video displays based upon virtual images of the external world having synchronized structural outlines superimposed on the video displays to a pilot operating an aircraft such as a helicopter in non-visual flight conditions. The virtual image display system includes a virtual imaging subsystem for generating virtual images of the external world, a video display subsystem for generating video images based upon the virtual images and for displaying the video images for the pilot's viewing, a sensing means for providing signals corresponding to the spatial location and perspective of the video display subsystem, a map comprising structural outlines corresponding to structural members forming the canopy structure of the helicopter, and a computer subsystem providing electronic interfacing between the elements of the virtual image display system, for synchronizing the orientation of the virtual imaging subsystem with the video display subsystem, and for processing the virtual image signals to provide signals to the video display subsystem to generate video displays. The computer utilizes the helmet position signals to define the relative position and orientation of the video display subsystem in the cockpit, and utilizes such definition to reconstruct structural outlines from the map that are synchronized to the perspective of the video images. The synchronized structural images are superimposed upon the video display.
REFERENCES:
patent: 4028725 (1977-06-01), Lewis et al.
patent: 4961626 (1990-10-01), Fournier, Jr. et al.
patent: 5072218 (1991-12-01), Spero et al.
Hamilton Bruce E.
Harper Howard P.
Stiles Lorren
Radke Terrance J.
Swarthout Brent
United Technologies Corporation
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