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Technology Stocks : Ampex Corporation (AEXCA)
AMPX 11.17+1.6%Jan 20 3:59 PM EST
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To: Gus who wrote (3435)9/18/1998 5:31:00 PM
From: Hal Campbell  Read Replies (3) of 17679
 
Did a little browsing - using that usually terrific search engine Randy brought to our attention . Definitions of component and composite video.

<<Component Video: Our color television system starts out with three channels of information; Red, Green, & Blue (RGB). In the process of translating these channels to a single composite video signal they are often first converted to Y, R-Y, and B-Y. Both three channel systems, RGB and Y, R - Y, B - Y are component video signals. They are the components that eventually make up the composite video signal. Much higher program production quality is possible if the elements are assembled in the component domain. One of the advantages DVD has over the laserdisc format is that it is component based.

Composite Video: A single video signal that contains luminance, color, and synchronization information. NTSC, PAL, and SECAM are all examples of composite video systems. >>

If Composite Video is luminance chrominance and synchronization - I would guess the fourth wire in a component method is also. Am I mistaken, or isn't some form or another of a digital " clock" used for synchronization?

The handy site for Video terms in layman's language.
videoessentials.com
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