Definition

vertical blanking interval (VBI)

Part of the Networking and communications glossary:

The vertical blanking interval (VBI) is a portion of a television signal that can carry information other than video or audio, such as closed-caption text and stock market data. The interval in sending a video signal is required for the time it takes the electron gun in a television monitor's cathode ray tube ( CRT ) to move back up to the top of the tube. VBI data can be inserted by a cable TV provider and transmitted to a special receiver that connects to a computer's RS-232C port .

This was last updated in March 2011
Posted by: Margaret Rouse

Related Terms

Definitions

  • session control protocol (SCP)

    - Session control protocol (SCP) is a method of creating multiple light-duty connections from a single TCP (Transmission Control Protocol) connection. Several such lightweight connections can be acti... (WhatIs.com)

  • access network

    - An access network is a user network that connects subscribers to a particular service provider and, through the carrier network, to other networks such as the Internet. (WhatIs.com)

  • base station

    - A base station is a fixed point of communication for customer cellular phones on a carrier network. The base station is connected to an antenna (or multiple antennae) that receives and transmits t... (WhatIs.com)

Glossaries

  • Networking and communications

    - Terms related to networking and communications, including definitions about network protocols and words and phrases about data transmission.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question About vertical blanking interval (VBI)Powered by ITKnowledgeExchange.com

Get answers from your peers on your most technical challenges

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.