Abstract: A boresight correction system is disclosed that determines the existing error between an aircraft gunsight and its gun systems while prescribed aircraft maneuvers are performed and which automatically corrects the gunsight system to compensate for this error. The system includes a sensor for detecting bullet positions, hardware that determines the bullet positions relative to the gun boresight, a digital processor to determine the above mentioned error, and to correct the gunsight system according to this error, and a non-volatile memory in the digital processor to store a corrected boresight position.

Abstract: This invention relates to a method of and apparatus for displaying a symbol on a display surface consisting of a matrix of discrete points (e.g. raster), where the symbol is divided into sections and the brightness of each pixel is controlled. This technique smooths out "stair-step" effects inherent in displays consisting of discrete points.

Abstract: A visual display system and method for use in converting calligraphic symbology information into raster scanned symbology. The system simultaneously generates and displays calligraphic and raster matrix imagery utilizing the same set of software instructions. The imagery is displayed upon a single, hybrid calligraphic/raster matrix display or separate raster matrix and calligraphic displays. A programmable calligraphic symbology generator utilizes digital stroking techniques that successively generates addressing for a matrix arrayed memory and determines the attributes of both the raster matrix generated and calligraphic generated symbology. The information is stored in a single or a plurality of matrix arrayed memories according to desired symbol attributes and system performance.