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image scaler

   Also found in: Wikipedia 0.11 sec.

(1) A circuit that converts the resolution of a video signal to a resolution that is higher or lower. For example, an HDTV set can increase (scale up/upconvert) the standard 480-line resolution from a DVD or TV channel to a 720 or 1080-line resolution by filling in the missing lines via software. Although this may enhance the image, it is not turning it into true high-definition content, which must have a minimum of 720 lines to begin with.

Conversely, the image scaler in an HDTV set that displays only 720 lines of resolution (720p) can reduce (scale down/downconvert) a 1080-line HD signal to fit the screen's native 720 lines. See HDTV.

(2) The circuit that translates the image resolution coming from the display adapter (video card) into the maximum resolution of the display screen or flat panel. This is how different resolutions (640x480, 800x600, etc.) fill up the entire width and height of the screen. See LVDS.

Flat Panel Monitor
This diagram of a typical flat panel monitor shows where the image scaler fits. (Redrawn from original courtesy of Analog Devices, Inc.)



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The member of the Opal all-in-one ImageProcessor IC for CRTs, or the PW60 ImageProcessor chip, is a highly integrated CRT television solution with an analog-to-digital converter (ADC), multi-standard video decoder, deinterlacer, image scaler, DDC and a quadruple 10-bit digital-to-analog converter (DAC).
Pixelworks(TM) to Introduce New Line of ImageProcessor ICs Targeting ... by Business Wire
Genesis turned to Harris Semiconductor for a complete analog front-end solution that delivers digitized output to the image scaler.
Genesis Microchip and Harris Semiconductor Collaborate to Simplify ... by Business Wire
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