Distortion Correction System.
DEPARTMENT OF THE NAVY WASHINGTON D C
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The patent describes the combinational distortion correction in a cathode ray tube CRT head-up display. The correction is accomplished for both optical distortion and CRT distortion by electronically predistorting the displays that appear on the face of the CRT. The corrections are performed in one step by the implementation of a complete mathematical model describing the combinational distortion patterns. The corrections to the vertical and horizontal CRT deflection voltages are represented as combinations of a plurality of transformation functions which are electronically mechanized by a straight line segment approximation technique where the slope and segment lengths are controlled by diode segment generators.
- Electrooptical and Optoelectronic Devices