Raster shifting delay compensation system

Education and demonstration – Vehicle operator instruction or testing – Flight vehicle

Patent

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Details

358104, G09B 900

Patent

active

044875843

ABSTRACT:
A compensation system for use in a helmet mounted raster projection system tilizes a microprocessor to control the offset position of the raster line and frame scanners, thereby increasing the stability of the viewed scene. The microprocessor calculates control words which are fed to the scanners via digital to analog converters during the vertical sync of the raster scan. The microprocessor calculates the control words from pilot look data obtained by head and eye trackers compared to previous similar data.

REFERENCES:
patent: 4048653 (1977-09-01), Spooner
patent: 4315240 (1982-02-01), Spooner
patent: 4315241 (1982-02-01), Spooner
patent: 4340878 (1982-07-01), Spooner
patent: 4347507 (1982-08-01), Spooner
patent: 4347508 (1982-08-01), Spooner
patent: 4349815 (1982-09-01), Spooner

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