CNET GLOSSARY: Terms for the techie
Circuitry or device that converts a video signal to a resolution other than its original format. Scaling can involve upconversion or downconversion, and may also include a conversion between progressive- and interlaced-scan formats. A scaler can be built into a TV, an HDTV set-top box, a DVD player, or another video source, or it may be a standalone component.
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