Tuner ATSC: Béda antarrépisi
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==Sawangan téhnis==
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The terms "tuner" and "receiver" are used loosely, and it is perhaps more appropriately called an ATSC receiver, with the tuner being part of the receiver (see [[Metonymy]]). The receiver generates the audio and video (AV) signals needed for television, and performs the following tasks: [[demodulation]], [[Error detection and correction|error correction]], [[transport stream]] [[Multiplexing|demultiplexing]], [[Data compression|decompression]], [[Analog-to-digital converter|analog to digital conversion]], AV [[synchronization]], and media reformatting to match what is optimal input for one's TV. Examples of media reformatting include: [[interlace]] to [[progressive scan]] or vice versa, picture resolutions, [[Aspect ratio (image)|aspect ratio]] conversions (16:9 to or from 4:3), [[frame rate]] conversion, even [[scaling]]. Zooming is an example of resolution change. Commonly used to convert a low resolution picture to a high resolution display.
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