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480i vs 240p on an old TV
480i vs 240p on an old TV
Published: 2016/09/08
Channel: Michael MacEachern
GTA V Quality Test (480i)
GTA V Quality Test (480i)
Published: 2014/03/09
Channel: ThePhen0menalGamer
Playstation 2 480i vs 1080i
Playstation 2 480i vs 1080i
Published: 2014/10/10
Channel: Matheus Galli Lalli
Sonic the Hedgehog in 480i
Sonic the Hedgehog in 480i
Published: 2017/01/23
Channel: HD Retrovision
Framemeister Comparison: 480i vs. 480p
Framemeister Comparison: 480i vs. 480p
Published: 2015/11/19
Channel: implantgames
Wii Component 480p vs Gamecube Composite 480i
Wii Component 480p vs Gamecube Composite 480i
Published: 2017/03/26
Channel: Tucker
HDMI modified Gamecube: Why recording 480i source is bad!
HDMI modified Gamecube: Why recording 480i source is bad!
Published: 2016/02/01
Channel: Greenalink
What Is The Resolution Of 480I?
What Is The Resolution Of 480I?
Published: 2017/07/25
Channel: sparky rights
Wii Component Cables 480i VS. 480p
Wii Component Cables 480i VS. 480p
Published: 2007/01/11
Channel: The FNG Spot
Burnout 3: Takedown (PS2) - 480i vs  480p
Burnout 3: Takedown (PS2) - 480i vs 480p
Published: 2014/07/25
Channel: BloodyThunderX
Como crear apps interactivas con Adobe Indesign y 480i
Como crear apps interactivas con Adobe Indesign y 480i
Published: 2016/11/01
Channel: Oscar Gomez Jr.
【GT4】解像度テスト(480i/480p/1080i)
【GT4】解像度テスト(480i/480p/1080i)
Published: 2015/05/03
Channel: Meru B
Super Mario World in 480i: Part I
Super Mario World in 480i: Part I
Published: 2017/01/18
Channel: HD Retrovision
Playstation 2 - RGB 480i - XRGB Mini Framemeister Showcase
Playstation 2 - RGB 480i - XRGB Mini Framemeister Showcase
Published: 2016/08/24
Channel: theseabass
Killer7 Supplement 06 - 4K vs. 480i
Killer7 Supplement 06 - 4K vs. 480i
Published: 2017/06/02
Channel: supergreatfriend
Corrección de líneas entrelazadas (de 480i a 480p)
Corrección de líneas entrelazadas (de 480i a 480p)
Published: 2012/02/03
Channel: RoxasChannelVids
Super Mario World in 480i: Part II
Super Mario World in 480i: Part II
Published: 2017/01/18
Channel: HD Retrovision
480i to 240p (deinterlace) mode on SONY CRT
480i to 240p (deinterlace) mode on SONY CRT
Published: 2012/05/08
Channel: Faginrs500
Blueair 480i 瑕疵 請注意
Blueair 480i 瑕疵 請注意
Published: 2017/08/08
Channel: 曹議文
Super Mario Sunshine 480i vs 480P Comparison
Super Mario Sunshine 480i vs 480P Comparison
Published: 2017/10/01
Channel: NubsTheGamer
OSSC 240p-480i switching
OSSC 240p-480i switching
Published: 2016/07/28
Channel: Chacranajxy
OSSC 480i@60/field rendered/un-filtered version
OSSC 480i@60/field rendered/un-filtered version
Published: 2017/04/14
Channel: Nikodem R
Perfect Dark 480i vs 240p
Perfect Dark 480i vs 240p
Published: 2017/03/30
Channel: Label Me Justin
240p vs 480i - Again
240p vs 480i - Again
Published: 2017/08/23
Channel: Michael MacEachern
3DO 480i RGB vs 240p RGB
3DO 480i RGB vs 240p RGB
Published: 2015/03/22
Channel: Airs
Metroid Prime 3 Composite 480i vs Component 480P
Metroid Prime 3 Composite 480i vs Component 480P
Published: 2017/10/07
Channel: NubsTheGamer
Blueair 經典 i 系列 480i 空氣清淨機使用說明
Blueair 經典 i 系列 480i 空氣清淨機使用說明
Published: 2017/03/03
Channel: Blueair Taiwan
XRGB-mini Framemeister + GameCube (via Wii): F-Zero GX (Upscaled from 480i) (720p, 60fps)
XRGB-mini Framemeister + GameCube (via Wii): F-Zero GX (Upscaled from 480i) (720p, 60fps)
Published: 2016/03/08
Channel: Fabio Santana
Watch how iClassic 480i works
Watch how iClassic 480i works
Published: 2017/02/10
Channel: Hicare
Twilight Princess Wii 480p/480i comparison
Twilight Princess Wii 480p/480i comparison
Published: 2011/11/04
Channel: Logan Somervell
How To Record PS1 games from HD PVR / DiamondGC500 / Force 480i signals from PS1 Games / No Upscaler
How To Record PS1 games from HD PVR / DiamondGC500 / Force 480i signals from PS1 Games / No Upscaler
Published: 2014/09/18
Channel: ChocoToken
Wii U 480i Quality Test
Wii U 480i Quality Test
Published: 2015/06/22
Channel: Shiori
1080P VS. 480i
1080P VS. 480i
Published: 2007/12/29
Channel: CharlietoKind
[Wii] TLoZ: Skyward Sword ~ 480p vs 480i [[Framiester XRGB-mini] [Component]
[Wii] TLoZ: Skyward Sword ~ 480p vs 480i [[Framiester XRGB-mini] [Component]
Published: 2014/08/29
Channel: Yap Kok Wai
DVDO VP30+upgrade: 240p-480i@60/ resolution switching/ GM1
DVDO VP30+upgrade: 240p-480i@60/ resolution switching/ GM1
Published: 2015/11/12
Channel: Nikodem R
Wii Mario Galaxy 480p vs 480i component vs composite [HD]
Wii Mario Galaxy 480p vs 480i component vs composite [HD]
Published: 2012/02/06
Channel: steven rivera
OSSC 480i@60/full frame/filtered version
OSSC 480i@60/full frame/filtered version
Published: 2017/04/18
Channel: Nikodem R
ROM Hacking Demo - Genesis and SNES games in 480i
ROM Hacking Demo - Genesis and SNES games in 480i
Published: 2017/01/31
Channel: HD Retrovision
Ps3 480i
Ps3 480i
Published: 2016/07/22
Channel: ELVIN LEVINE
LUIS MIGUEL -El Concierto 1994 -Calidad 480i (DVD)
LUIS MIGUEL -El Concierto 1994 -Calidad 480i (DVD)
Published: 2015/10/01
Channel: Jorge Garcia
OSSC 2X240p@60/480i@60/ straight to Elgato
OSSC 2X240p@60/480i@60/ straight to Elgato
Published: 2017/05/30
Channel: Nikodem R
.hack//infection 1080i vs 480i (watch in HD)
.hack//infection 1080i vs 480i (watch in HD)
Published: 2014/04/28
Channel: Nikodem R
Jane Siberry - Mimi on the Beach - promo video [480i]
Jane Siberry - Mimi on the Beach - promo video [480i]
Published: 2011/05/23
Channel: dudwarezintl
Wii 480p vs. 480i New Supermario Bros.
Wii 480p vs. 480i New Supermario Bros.
Published: 2010/03/03
Channel: PiChristoph
480i 新濾網潔淨效濾測試
480i 新濾網潔淨效濾測試
Published: 2017/09/24
Channel: 家電好控電小二
How to render 480i and 240p into 60 fps videos for Youtube
How to render 480i and 240p into 60 fps videos for Youtube
Published: 2015/03/19
Channel: Nikodem R
空汙去去走 Blueair 480i空氣清淨機 給家人最好的保護
空汙去去走 Blueair 480i空氣清淨機 給家人最好的保護
Published: 2017/09/13
Channel: Kuo Choyce
Sgh 480i unlock/unfreeze not work for flamingnoor!
Sgh 480i unlock/unfreeze not work for flamingnoor!
Published: 2011/04/29
Channel: cuddyman513
NHL 13 PS3 Demo 480i Performance Issues
NHL 13 PS3 Demo 480i Performance Issues
Published: 2012/08/22
Channel: Enkou
Sonic 2 OSSC+ VP30/ unlocked framerate/ seamless 240p-480i transition
Sonic 2 OSSC+ VP30/ unlocked framerate/ seamless 240p-480i transition
Published: 2017/11/15
Channel: Nikodem R
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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SDTV resolution by nation; countries using 480i are in green.

480i is a shorthand name for the video mode used for standard-definition analog or digital television in Caribbean, Myanmar, Japan, South Korea, Taiwan, Philippines, and most of the Americas (with the exception of Argentina, Paraguay and Uruguay). The 480 identifies a vertical resolution of 480 lines, and the i identifies it as an interlaced resolution. The field rate, which is 60 Hz (or 59.94 Hz when used with NTSC color), is sometimes included when identifying the video mode, i.e. 480i60; another notation, endorsed by both the International Telecommunication Union in BT.601 and SMPTE in SMPTE 259M, includes the frame rate, as in 480i/30. The other common standard, used in the other parts of the world, is 576i.

In analogue contexts, this resolution is often called "525 lines". It is mandated by CCIR Systems M and J, which are usually paired with NTSC color - which led to the "NTSC" name being often inaccurately used to refer to this video mode. Other color encodings have also been used with System M, notably PAL-M in Brazil.

Technical detail[edit]

For analog NTSC there are a total of 525 scanning lines of which originally 483 lines were visible (241.5 visible lines + 21 lines of vertical blanking per field) and later 480 (240 complete lines per field). [For quad video recording systems, the math suggests 15 transverse head passes, each consisting of 16 lines of video, are required to complete one field.] A full frame consists of two fields. One field contains the odd-numbered lines and the other contains the even ones. By convention an NTSC video frame is considered to start with an even field followed by an odd field. The disparity of the line numbering compared to other systems is solved by defining the line numbering to start five equalizing pulses (or 2 and a half lines) earlier than on all other systems (including Systems A and E even though they had no equalizing pulses) on the first equalizing pulse following an active line or half line. This has the effect of placing a half line of video at the end of the even (first) field and the beginning of the odd (second field). Thus the line numbers correspond to the real lines of the video frame. On all other systems, the field was considered to start with the falling edge of the first field pulse which gave the confusing position that the odd field (first) had a half a line of video occupying the latter half of a whole line and ended with a whole line of video but half a scanning line (and vice versa for the even field). The NTSC convention solved this confusion.[1]

For DV-NTSC only 480 lines are used. The digitally transmitted horizontal resolution is usually 720 samples (which includes 16 samples for the horizontal sync and horizontal blanking) or 704 visible pixels with an aspect ratio of 4:3 (with vertically rectangular pixels) and therefore a display resolution of 640 × 480 (VGA); that is standard-definition television (SDTV) with a 4:3 aspect ratio (with square pixels).[2][3][4][5]

The field rate (not the frame rate) is usually (60/1.001) = 59.94 Hertz for color TV and can be rounded up to 60 Hz. There are several conventions for written shorthands for the combination of resolution and rate: 480i60, 480i/30 (EBU/SMPTE always use frame rate to specify interlaced formats) and 480/60i. 480i is usually used in countries that conventionally use NTSC (most of the Americas and Japan), because the 525 transmitted lines at 60 hertz of analogue NTSC contain 480 visible ones.

480i can be transported by all major digital television formats, ATSC, DVB and ISDB, and on DVD.

See also[edit]

References[edit]

  1. ^ Report 308-2 of the XIIth Planiary of the CCIR - Characteristics of TV systems.
  2. ^ "rpsoft 2000 software". rpsoft2000.com. Retrieved 1 June 2015. 
  3. ^ "480i". afterdawn.com. Retrieved 1 June 2015. 
  4. ^ Glossary - 480i
  5. ^ "480i" – via The Free Dictionary. 

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