Patent ID: 6791476
Filing Date: 2004-09-14
Classification: G01C,G06T

Abstract:
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, by a rendering computer operable for graphically rendering the aircraft flight information on the display for use by flight crew of the aircraft in operating the aircraft and for receiving the input data, from the received input data 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 rendering computer generated 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, by a comparator processor operable for receiving the input data, from the received input data comparison imaging data for comparison by the comparator processor with selected parts of the rendering computer generated imaging data for the flight parameter to thereby validate the imaging data that is generated by the rendering computer for graphically rendering the flight information on the display, said comparison imaging data corresponding to the rendering computer generated 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, by the comparator processor, said comparison imaging data to the corresponding rendering computer generated imaging data 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 by the rendering computer for presentation on the display by checking, from among all of the imaging data generated by the rendering computer, only a predetermined portion of the rendering computer generated imaging data comprising a meaningful plurality of individual data values of the rendering computer generated imaging data for actuating the predetermined subset of said subject plurality of pixels.