One who doubles. / An instrument for augmenting a very small quantity of electricity, so as to render it manifest by sparks or the electroscope.

plural of doubler

(computing) Synonym of flicker fixer

plural of scan doubler

plural of line doubler

A device or algorithm used to deinterlace video signals prior to display on a progressive scan display, typically by repeating scan lines so that the lines in a field match the lines of a frame.