Patent ID: 7342512

Claim:
A method for imaging, on an aircraft instrumentation display system bit-mapped display formed of a multiplicity of individually-addressable pixels at locations through the display and actuatable to create images on the display, aircraft flight information based on data that is input to the display system for presentation on the display, comprising the steps of: generating from the received input data, for graphically rendering the aircraft flight information on the display for use by flight crew of the aircraft in operating the aircraft, anti-aliased graphical imaging data for selectively actuating the multiplicity of display pixels with the generated anti-aliased graphical imaging data to create on the bit-mapped display the graphically-depicted flight information comprising a dynamically-changeable graphically-depicted flight parameter, the flight parameter being graphically depicted by the generated anti-aliased imaging data visibly imaged at a predetermined location on the display by selective actuation of a subject plurality of the pixels of said multiplicity of display pixels to visually form the graphical flight parameter depiction at the display location; generating, from the received input data, comparison imaging data for comparison with selected parts of the generated anti-aliased imaging data for the flight parameter to thereby validate the anti-aliased imaging data generated for graphically rendering the flight information on the display, said comparison imaging data corresponding to the generated anti-aliased imaging data which is for use in actuating only a predetermined subset of said subject plurality of the pixels of said multiplicity of display pixels for visibly imaging the flight parameter at the predetermined location, so that the comparison imaging data comprises imaging data for actuating only said predetermined subset of the said subject plurality of pixels; and comparing said comparison imaging data to the corresponding anti-aliased imaging data generated for actuating the predetermined subset of said subject plurality of pixels for the flight parameter to thereby evaluate the graphically rendered aircraft flight information generated for presentation on the display by checking, from among all of the generated anti-aliased imaging data, only a predetermined portion of the generated anti-aliased imaging data comprising a meaningful plurality of individual data values of the generated anti-aliased imaging data for actuating the predetermined subset of said subject plurality of pixels.