Compensation circuit for electronic photocomposition system

Claim 1

In a system wherein light generated by a display device is utilized to create characters by a plurality of character slices, the combination comprising: means for scanning said display device to provide a plurality of linear scanlines in one direction; means for providing successive positioning signals to step said one-directional scanlines orthogonally to produce a plurality of adjacent scanline segments that form said character slices; means for providing a control signal for changing the point size of said characters; means for utilizing said control signal to change the lengths of said scanline segments and the spacing between adjacent scanlines, to create characters of said changed point size; means providing a plurality of alternating signals; means for modulating said alternating signals to produce output alternations having an amplitude based on the amount of modulation imposed by the modulating means; means for utilizing said control signal to cause said modulating means to operate at a degree of modulation that corresponds to said changed point size; and means for superimposing on said scanlines said output alternations to deflect said scanlines substantially orthogonal to said one direction so as to cause a bridging over the interstitial spaces between adjacent scanline segments.