Graphics display system
AssigneeCrosfield Electronics Limited
InventorRichard A. Kirk
Life of this patent
Estimating the term…
Abstract
A graphics display system comprises a monitor (5); a first frame store (1) for holding digital data defining the color content of an image to be displayed on the monitor; a second frame store (2) for holding an array of control data, there being a control data value corresponding to each pixel of the image in the first frame store; and a processor (6,10,3) to cause the monitor to display the image in the first frame store under control of the control data array. The processor (6,10,3) means is adapted to cause a moving contrast image to be mixed with the image from the first frame store (1) under control of the control data array.
Claims8
A graphics display system comprising a monitor;
- a first frame store for holding digital data defining the colour content of an underlying image to be displayed on said monitor;
- a second frame store for holding an array of control data, there being a control data value corresponding to each pixel of the underlying image in said first frame store;
- and processing means to cause said monitor to display the underlying image in said first frame store under control of the control data array, wherein said processing means is adapted to cause a second image, having contrast image data that is scrolled continuously within it, to be mixed with the underlying image under control of the values in the control data array so as to distinguish said second image from said underlying image.
Dependencies are inferred from the claim text.