Contents 1 Connectivity 2 Broadcast and displays 3 DVDs 4 Gaming 5 References

Connectivity[edit] As EDTV signals require more bandwidth (due to frame doubling) than is feasible with SDTV connection standards (such as composite video, SCART or S-Video), higher bandwidth media must be used to accommodate the additional data transfer. To achieve EDTV, consumer electronic devices such as a progressive scan DVD player or modern video game consoles must be connected through at least a component video cable (typically using 3 RCA cables for video), a VGA connector, or a DVI or HDMI connector. For over-the-air television broadcasts, EDTV content uses the same connectors as HDTV.

Broadcast and displays[edit] EDTV broadcasts use less digital bandwidth than HDTV, so TV stations can broadcast several EDTV stations at once. Like SDTV, EDTV signals are broadcast with non-square pixels. Since the same number of horizontal pixels are used in 4:3 and 16:9 broadcasts, the 16:9 mode is sometimes referred to as anamorphic widescreen. Most EDTV displays use square pixels, yielding a resolution of 852 × 480. However, since no broadcasts use this pixel count, such displays always scale anything they show. The only sources of 852 × 480 video are Internet downloads, such as some video games. Unlike 1080i and SDTV formats, progressive displays (such as plasma displays and LCDs) can show EDTV signals without the need to de-interlace them first. This can result in a reduction of motion artifacts. However to achieve this most progressive displays require the broadcast to be frame doubled (i.e., 25 to 50 and 30 to 60) to avoid the same motion flicker issues that interlacing fixes.

DVDs[edit] The progressive output of a DVD player can be considered the baseline for EDTV. Movies shot at 24 frames-per-second (fps) are often encoded onto a DVD at 24 fps progressive, and most DVD players do the 2:2 or 3:2 pulldown conversion internally, before feeding the output to (usually) an interlaced display, or here, a progressive 576p or 480p.[2] The progressive 24 fps DVD will have a unifying effect on PAL and NTSC, just as film does, perhaps requiring conversion of the number of lines but without a conflict between field and frame rate. The player converts the video to the more-conventional video formats, on the fly, by simply repeating each field. It converts for PAL (referring here to 625 line 575 active line used with PAL as well as the chrominance aspects), by repeating each frame twice with a corresponding interlace, or for NTSC, by repeating some 480p frames 2 times and others 3 times (3:2 pulldown), to make 24 fps material play at 30fps, or 60 fields per second.[3][4] On an EDTV display, or on HDTVs in 480p mode, DVD players can display progressive disc content without needing to convert it to interlaced format. Various signal processing tricks are then used to fake the progressive scan; the quality of this depends on the quality of the upconversion process. Blu-ray Disc and HD DVD formats can encode all EDTV forms, but because HDTV is a primary selling point of Blu-ray/HD DVDs, to date, this has been used only on certain bonus content.

Gaming[edit] The video resolution of video game consoles reached EDTV specifications starting with the Sega Dreamcast, becoming the first mainstream console with a VGA output, supporting EDTV. The PlayStation 2, Nintendo GameCube, Microsoft Xbox and Wii are also EDTV compatible with a component connection. The Xbox 360 can output 480p via YPBPR component, VGA and HDMI (newer models only) cables. The PlayStation 3 outputs EDTV via its HDMI and component video (YPBPR) connections; 480p is only available on NTSC consoles while 576p is only available on PAL consoles. Television portal

References[edit] ^ CNET Networks - Enhanced Definition Television ^ "Progressive Scan - What You Need To Know About Progressive Scan and How It Affects What You See on a Television Screen". 2011-04-06. Retrieved 2011-04-22.  ^ explanation of progressive scan ^ HiFi writer progressive scan dvd players critique and concern over lack of lines for 625 PAL resolution v t e Digital video resolutions Designation Usage examples Definition (lines) Rate (Hz) Interlaced (fields) Progressive (frames) Low, MP@LL LDTV, VCD, HTV 240, 288 (SIF)   24, 30; 25 Standard, MP@ML SDTV, SVCD, DVD, DV 480 (NTSC), 576 (PAL) 60, 50 24, 30; 25 Enhanced, HMP@HML EDTV 480 (NTSC-HQ), 576   60, 50 High, MP@HL HDTV, BD, HD DVD, HDV 720   24, 30, 60; 25, 50 1080 25, 30 24, 50, 60 Ultra-high UHDTV 2160, 4320   60, 120,180 v t e Broadcast video formats Television Analog 525 lines System M NTSC NTSC-J PAL-M 625 lines PAL System B System D System G System H System I System K PAL-N PALplus SECAM System B System D System G System K System L (SECAM-L) Audio BTSC (MTS) EIAJ NICAM SAP Sound-in-Syncs Zweikanalton (A2/IGR) Hidden signals Captioning CGMS-A EPG GCR PDC Teletext VBI VEIL VIT VITC WSS XDS Historical Pre-1940 Mechanical television 180-line 405-line System A 441-line 819-line MAC MUSE Digital Interlaced SDTV 480i 576i HDTV 1080i Progressive LDTV 1seg 240p 288p EDTV 480p 576p HDTV 720p 1080p UHDTV 2160p 4320p MPEG-2 standards ATSC DVB ISDB DTMB DVB 3D-TV MPEG-4 AVC standards ATSC A/72 DMB DTMB DVB SBTVD 1seg HEVC standards ATSC 3.0 Audio AC-3 (5.1) DTS MPEG-1 Audio Layer II MPEG Multichannel PCM LPCM AAC HE-AAC Hidden signals AFD Broadcast flag Captioning CPCM EPG Teletext Technical issues 14:9 compromise Broadcast-safe Digital cinema (DCI) Display motion blur Moving image formats MPEG transport stream Reverse Standards Conversion Standards conversion Television transmitter Video on demand Video processing Widescreen signaling Templates (Analogue TV Topics) Retrieved from "" Categories: Television technologyFilm and video technologyHidden categories: Articles needing additional references from April 2011All articles needing additional references

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