Data Compression - The process of reducing the size of a data file, usually accomplished through software processing.
Projection TV Set (PTV) - A term for a big screen TV that uses lenses to project video images on a screen. Rear projection models are one-piece. Front projection systems have a separate projector and screen.
Newton Rings - Concentric multicolored rings caused by the pressing of film to glass. This can be a problem in scanning from negatives or transparencies.
Normal Lens - This category has a focal length of 50mm for 35mm cameras.
Scan Velocity Modulation - Varies the scanning speed of the electron beam to accommodate light/dark transitions. This increases contrast at image edges for a clear, well-defined picture.
Fps - Frames per Second. To give the illusion of motion, television actually transmits a series of snapshot pictures referred to as frames. Increasing the frame rate improves motion smoothness and may reduce flicker in some displays. In Canada both analog and digital television transmits 30 Fps.
Surround Output Level - Allows adjustment of the rear speaker level relative to the front speaker level according to viewing location and individual preference.
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