vertical blanking interval

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The blank area out of sight at the top and bottom of a television picture that allows the raster gun to reset. The space created is often used for Teletext and other services.

Audio and video glossary. 2014.

Look at other dictionaries:

  • Vertical Blanking Interval —   [dt. Austastlücke], Horizontalfrequenz …   Universal-Lexikon

  • Vertical blanking interval — The vertical blanking interval (VBI), also known as the vertical interval or VBLANK, is the time difference between the last line of one frame or field of a raster display, and the beginning of the next. It is present in analog television, VGA,… …   Wikipedia

  • Vertical Blanking Interval — Die Austastlücke (auch Austastimpuls genannt) bezeichnet in der Fernsehtechnik die Zeit, in welcher der Elektronenstrahl einer Bildröhre dunkel geschaltet an den Ausgangspunkt zurückgeführt wird. In diesem Zeitraum wird die Bildübertragung… …   Deutsch Wikipedia

  • Vertical synchronization — (v sync, vbl sync) refers generally to the synchronization of frame changes with the vertical blanking interval. Since CRTs were nearly the only common video display technology prior to the widespread adoption of LCDs, the frame buffers in… …   Wikipedia

  • Vertical interval timecode — (VITC, pronounced vitsee ) is a form of SMPTE timecode embedded as a pair of black and white bars in a video signal. These lines are typically inserted into the vertical blanking interval of the video signal. There can be more than one VITC pair… …   Wikipedia

  • Blanking — In raster scan equipment an image is built up by scanning an electron beam from left to right across a screen to produce a visible trace of one scan line, reducing the brightness of the beam to zero ( horizontal blanking ) moving it back as fast… …   Wikipedia

  • Vertical interval — A&V The portion of the video signal that occurs between the end of one field and the beginning of the next. During this time, the electron beams in the cameras and monitors are turned off (invisible) so that they can return from the bottom of the …   Audio and video glossary

  • Nominal analogue blanking — Nominal analog blanking or nominal analogue blanking is the outermost part of the overscan of a standard definition digital television image. It consists of a variable and arbitrary gap of black (or nearly black) pixels at the left and right… …   Wikipedia

  • VBI — Vertical Blanking Interval (Computing » Drivers) Vertical Blanking Interval (Academic & Science » Electronics) Vertical Blanking Interval (Community » Media) * Visual Basic Instinct (Computing » General) * Vineyard Bible Institute (Community »… …   Abbreviations dictionary

  • VBlank — Vertical Blanking Interval, сокр. VBI (англ. Вертикальный гасящий интервал), так же известный как вертикальный интервал или VBLANK  это временной промежуток между концом последней строки одного кадра или поля на растровом дисплее, и началом… …   Википедия

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