CHAPTER 12
Video Basics, Including Video Signals
What can be said about transmitting motion pictures electronically? This is a process that started back in early 1900s that we now know as television (TV). At first, there were mechanical television systems such as those pioneered by Charles Jenkins. One of the first images captured, sent, and later received and displayed with less than 100 lines was a picture of Felix the cat, a cartoon character.
However, an all electronic television system proved to be much more practical than a mechanical system. For example, the number of scanning lines could be changed easily by modifying an oscillator’s frequency. ...
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