Control unit for the brightness of video signals on a raster...

Details Control unit for the brightness of video signals on a raster... Control unit for the brightness of video signals on a raster...

G - Physics

06

F

375/32

G06F 3/14 (2006.01) G01S 7/06 (2006.01) G01S 7/10 (2006.01) G09G 3/00 (2006.01)

Patent

CA 1070871

ABSTRACT A control unit for the brightness of video signals on a raster scan display is provided with a random-access memory. The data stored in each element of this memory determines the brightness of the video signals on the raster scan display at a position corresponding with this element. In res- ponse to the video data supplied to the control unit and the brightness data in the random-access memory a logical unit provides new brightness data which overwrites the brightness data in the memory.

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