CNET GLOSSARY: Terms for the techie
scan velocity modulation (SVM)
TV feature; a circuit that increases the speed of electrons to their respective phosphor dots. Often produces an artificial "hard edge," which is why it should be switched off for sources such as DVD and HDTV. Used in professional projectors as a form of dithering to reduce the visibility of scan lines. Also called velocity scan modulation or, generically, edge enhancement.
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