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Raster-scanned CRT display system with improved positional resolution for digitally encoded graphics

Image Number 2 for United States Patent #4415889.

In a raster-scanned kinescope display resolution in the direction of slow sweep tends to be limited by the spacing between adjacent scan lines in the direction of fast sweep. Auxiliary minor deflection at video rate is used to improve the positional resolution of the display in the direction of slow sweep.

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