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SDTV
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SDTV er en forkortelse for for &quot;Standard Definition Television&quot; (fjernsyn med standardopplsning), og beskriver en lavere opplsning enn HDTV-systemer (High Definition Television). SDTV-systemer bruker det samme formatet p 4:3 og 480 skannelinjer for  gjengi et bilde som et vanlig fjernsynsapparat bruker, men digital dekoding og forbedring av signalet gir et skarpere og mer definert bilde. SDTV-kringkasting bruker enten linjesprang (480i) eller progressiv skanning (480p). Progressiv skanning gir generelt den beste bildekvaliteten.
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Copyright  2005, ATI Technologies Inc. Med enerett.<br />&#160;
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