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How Video Works, 2nd Edition by Diana Weynand, Marcus Weise

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Digital Television Standards 12

 

A standard is a set of protocols or rules that define how a system operates. Standards provide a coherent platform from which information can be created, extracted, and exchanged. Without these protocols, there would be no consistency in the handling of information. Television is the conversion of light to electrical energy. The process by which this conversion takes place is referred to as a television standard or system. Standards are necessary so that video signals can be created and interpreted by each piece of video equipment. For example, video levels, broadcast frequencies, subcarrier frequency, and frame rates are all dictated by a specific standard. NTSC analog is one example of a video standard. ...

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