The part of a TV signal that is sent between each video frame. In North American TV (NTSC), the vertical blanking interval (VBI) takes up the last 45 lines of each 525-line frame. Its purpose is to allow the TV time to reposition its electron beam from the bottom of the current frame (screen) to the top of the next one. This non-viewable part of the signal is used to transmit closed-caption content. See datacasting, V-chip and ATV Forum.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- NAB "spindoctoring" on whitespace
- NAB "spindoctoring" on whitespaceAbout rightNow if the NAB can make a reasonable case that granting the spectrum in question would make their own services significantly less reliable (interference, etc) and explain how (ie. make a technical case, instead of relying on demagoguery and spin), then their position will merit more...
- Discussion threads 2007-09-12
- GPL and definitions of freedom
- GPL and definitions of freedomWhoa up John, you may as well try to convertA Catholic to Islam as to try and convince the FSF to keep their personal prejudice out of their license. Heck, there are people that swear the Earth is flat, in fact they have a society....
- Discussion threads 2006-02-24
Neighboring Terms
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