Scanning Line, Television

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Scanning Line, Television

 

a narrow, usually horizontal strip traced by an electron beam on the target of a television camera tube or the screen of a kinescope during scanning of an image. The video signal corresponding to the scanning line contains information on the brightness distribution of the image transmitted in a horizontal direction, that is, along the line. Oscillograms of the video signals of particular television lines make it possible to measure different characteristics and parameters of television camera tubes and other transducers that convert light to electrical signals. These characteristics include the transfer characteristic, the accuracy of color transmission, horizontal linearity, sensitivity, and the signal-to-noise ratio.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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