Landing light pattern generator for simulator with selective addressing of memory
AssigneeThe Singer Company
InventorRobert P. Cuffia
Life of this patent
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Abstract
The disclosure is of a system for steering a landing light pattern by storing data to increase the illumination intensity for each picture element by a selected amount along a scanline in a memory circuit (11) and, then, addressing the memory circuit to begin its readout at predetermined starting points. A skewing or warping of the light pattern is obtained by applying a displacement factor to the beginning point for each successive scanline, so that each scanline is read out beginning at a progressively different point to cause the shape of the landing light pattern to be varied in a predetermined manner.
Claims10
In a system for developing a predetermined simulated scene at a time of reduced visibility from information obtained from data generated digitally and from data stored electronically, and for displaying said reduced visibility scene on a display device with portions of increased illumination as if by a spot light, said system comprising:
- data storage means for receiving data representative of predetermined scenes,
- control means for generating data in order to select a predetermined scene,
- a display device connected to receive data from said data storage means and to display scenes selected by said control means,
- means connected to said display device to increase the illumination intensity of portions of said displayed reduced visibility scene in accordance with a preselected pattern as if projected by a spot light and unrelated to the information in said scene, and
- said means connected to said display device including memory circuit means to store data representative of a Table of Intensities with means for addressing the Table of Intensities at different points,
- whereby the preselected spot light pattern of increased illumination intensity is moved in a predetermined manner.
Dependencies are inferred from the claim text.