Chapter 21 Analog Video Reception
21.1 Introduction
To a large degree, the modern cable television industry is founded on the ability to deliver premium programming for which subscribers pay, either on a monthly subscription basis or on a per-program basis. Key to offering premium programming is the ability to deny the program to anyone who has not paid for it. The denial technology must offer an adequate level of program denial combined with a high-quality recovered signal and reasonable cost. It must be transparent to the paying subscriber, and it must offer reasonable immunity to defeat. These requirements conflict and have led to many advances in technology.
In the analog era, the cable TV industry depended on equipment manufacturers to ...
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