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Definition of "High Definition up Converter" |
An High Definition up Converter, also known as a digital television upconverter, is a device that converts the digital data on a DVD to a format that can be viewed directly on a high-definition television receiver without intermediate conversion to an analog signal. The HD upconverter digitally enlarges each frame to HD resolution. Some HD upconverters can also convert the frame rate of 35-mm movies to the frame rate of HDTV, so flickering does not occur when the movie is viewed on the HDTV receiver. / In digital systems, a signal is said to be at digital full scale when it has reached the maximum or minimum representable value. In an unsigned fixed point binary representation, this occurs when all bits are 1s, but this is a simplified analysis. Full scale also occurs when the minimum value or maximum rarefaction amplitude is reached, which would be represented as all 0s. Further, many digital systems use other digital encoding methods, such as two's complement wherein all 1s or all 0s actually occur around the zero crossing, and the maximum and minimum values are not as simply described. |
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