Widescreen signaling

Widescreen signaling

In television technology, widescreen signaling (WSS) is a digital stream embedded in the TV signal describing qualities of the broadcast, in particular the intended aspect ratio of the image. This can be used by a widescreen TV to switch to the correct display mode.

The signal is placed in line 23 (PAL) and lines 20/283 (PAL-M and NTSC) and has 14 bits of information indicating:

B00 to B03 - Aspect Ratio

References

* [http://pda.etsi.org/pda/queryform.asp ETSI] EN 300 294 "Television Systems: 625-Line Television Wide Screen Signaling (WSS)"

See also

*PALPlus
*Active Format Description (AFD)
*Widescreen

External links

* [http://www.eetasia.com/ARTICLES/1999NOV/1999NOV15_AMD_MSD_AN.PDF PDF of WSS standard]


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Widescreen — A widescreen image is a film, computer or television image with a wider and shorter aspect ratio than the standard Academy frame developed during the classical Hollywood cinema era. Silent film was projected at a ratio of four units wide to three …   Wikipedia

  • PALplus — is an extension of the PAL analogue broadcasting system for transmitting 16:9 programs without sacrificing vertical resolution. It followed experiences with the HD MAC and D2 MAC, standards that were incompatible with existing receivers but… …   Wikipedia

  • Active Format Description — In television technology, Active Format Description (AFD) is a standard set of codes that can be sent in the MPEG video stream or in the baseband SDI video signal that carries information about their aspect ratio and active picture… …   Wikipedia

  • Aspect ratio (image) — For other uses, see Aspect ratio (disambiguation). For computer screen topics, see display aspect ratio. For screen rotation and portrait mode, see page orientation. 4:3 redirects here. For the 4/3 digital camera/lens standard, see Four Thirds… …   Wikipedia

  • S-Video — Infobox connector name=S Video type=Analog video connector logo= caption=A standard 4 pin S Video cable connector, with each signal pin paired with its own ground pin. designer= design date= manufacturer= production date= superseded= superseded… …   Wikipedia

  • WSS — is a three letter abbreviation with multiple meanings, as described below:*War savings stamps (W.S.S.) *Wavelength Selective Switching *WebSideStory *Well services supervisor *Westdale Secondary School *West Side Story *Web Security Service (not… …   Wikipedia

  • CGMS-A — Copy Generation Management System Analog (CGMS A) is a copy protection mechanism for analog television signals. It is not the same as the Broadcast flag, which is designed for use in digital television signals. The concept is the same as the… …   Wikipedia

  • Visual display unit — A visual display unit, often called simply a monitor or display, is a piece of electrical equipment which displays images generated from the video output of devices such as computers, without producing a permanent record. A newer monitor… …   Wikipedia

  • HDMI — (High Definition Multimedia Interface) …   Wikipedia

  • Digital Visual Interface — (DVI) A male DVI D (single link) connector. Type Digital and analog computer video connector Production history …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”