480??

SDTV ?????? ??????? ??????; 480i ?? ????? ???? ???? ??? ??? ??? ??? ????

480?? ???????? , ????? , ?????? ?????? , ?????? , ???????? , ???? , ??????? ????? ?? ??????? ??????? ( ?????????? , ???????? ?? ??????? ?? ????? ?? ???) ??? ????-??????? ?????? ???????? ^[1] ?? ??? ????? ???? ???? ???? ?????? ??? ??? . 480 480 ?????? ?? ????? ??????????? ?? ????? ???? ??, ?? i ??? ????????? ??????????? ?? ??? ??? ??????? ??? ??????? ??, ?? 60 ?????? (?? 59.94 Hz ?? NTSC ??? ?? ??? ?????? ???? ???? ??), ???-??? ?????? ??? ?? ????? ???? ??? ????? ???? ???? ??, ??????? 480??60 ; BT.601 ^[2] ??? ?????????????? ???????? ??? ?? SMPTE 259M ??? SMPTE ????? ?????? ??????? ?? ???? ?????? ??? 480??/30 ?? ??? ????? ?? ????? ??? ???? ??????? ???? ??????? ?????? ????, ????? ????? ???? ?????? ??? ???? ???? ??, 576i ??? ?? ?????? ???? ( BT.601 ??? ????????) ?? ????????? ???? ?? ??? ?? ???? ?? ???????? ?? ??????? ??? ?? ?? ???? ????? ?????? ???? ??????? ?? ??? ????? ?? ?????? ????? ?????? ??? ????? ??????? ?? ??? ???? ???? ???

?????? ??????? ??, ??? ???????? ???????? ?? ?? ?? ?????? ???????? ?? ????? ?? ???????? ??? ?? ??? ????? ?? ?????? "525 ??????" ?????? ?? ??? ?????? ???? ???? ?????? ?? ?????? ????? ?? ?? ????? 480i ?? ???-??? ??? ????? ?? "NTSC" ??? ???? ??, ??? ?? NTSC ???? ?????? ????? ??? ????? ???

?????? [ ??????? ???? ]

↑ "What means 480i? - AfterDawn" . www.afterdawn.com .
↑ "Recommendation ITU-R BT.601-7, Studio encoding parameters of digital television for standard 4:3 and wide-screen 16:9 aspect ratios" (PDF) . International Telecommunication Union . March 2011.

?????:TV resolution

[1] "What means 480i? - AfterDawn" . www.afterdawn.com .

[2] "Recommendation ITU-R BT.601-7, Studio encoding parameters of digital television for standard 4:3 and wide-screen 16:9 aspect ratios" (PDF) . International Telecommunication Union . March 2011.

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