Landing light pattern generator for digital image systems
First Claim
1. A system for developing a predetermined scene from information obtained from data generated digitally and from data stored electronically, and for displaying said scenes on a display device, 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 vary the illumination intensity of portions of said displayed scene in accordance with a preselected pattern unrelated to the information in said scene,an aircraft simulator apparatus having portions to develop information varying in accordance with input provided by a pilot trainee,a computer-controller circuit,digital image data processor circuit controlled by information from said computer-controller circuit,landing lights function generator circuit means comprising counter means connected to said computer-controller circuit to initiate counting depending upon data from said computer-controller circuit,circuit means to convert the output of said counter circuit means to a log function, andcircuit means to combine said log function output with a position signal from said aircraft simulator in order to control the timing position of said log function output.
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Accused Products
Abstract
A system is described for use in a simulator apparatus, particularly a simulator of an aircraft, whereby aircraft landing lights can be simulated effectively in a night scene. This is accomplished by increasing the illumination intensity of a part of each line across the screen, in accordance with a pattern generated for this purpose. The illumination intensity is increased in a manner unrelated to the objects in the scene; but rather, the scene that would be visible is made brighter where the landing lights would illuminate it.
In accordance with the disclosure, a counter circuit 48 initiates a bell shaped pattern and also a counter circuit 49 initiates an envelope pattern. The bell shaped pattern is the primary pattern for use in increasing the intensity of the illumination across each scanline, but the particular shape of the bell shaped pattern is modified, as required, by the envelope curve. The envelope pattern is combined with the bell pattern in circuit 59. The composite pattern is used in circuit 42 to combine with information concerning the position of the aircraft from circuit 39, and the lamp intensity on line 37, to increase the intensity along each scanline of the display.
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Citations
7 Claims
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1. A system for developing a predetermined scene from information obtained from data generated digitally and from data stored electronically, and for displaying said scenes on a display device, comprising:
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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 vary the illumination intensity of portions of said displayed scene in accordance with a preselected pattern unrelated to the information in said scene, an aircraft simulator apparatus having portions to develop information varying in accordance with input provided by a pilot trainee, a computer-controller circuit, digital image data processor circuit controlled by information from said computer-controller circuit, landing lights function generator circuit means comprising counter means connected to said computer-controller circuit to initiate counting depending upon data from said computer-controller circuit, circuit means to convert the output of said counter circuit means to a log function, and circuit means to combine said log function output with a position signal from said aircraft simulator in order to control the timing position of said log function output. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification