Off Premises Switching:alternatives In CATV Control Systems (1986)
By Karl W. Poirier, Triple Crown Electronics Inc.
At present, the delivery of pay television signals has primarily involved scrambling of protected signals. This method has several inherent problems, particularly in the area of program and equipment security.
The initial obvious solution was to employ off premises control systems. These system designs are primarily based on off premises converters, which have proven to be less than the ideal answer. It appears that either off premises addressable tap systems, or hybrid tap/scramble systems may prove more effective in this application. This paper examines the functional, application, and cost aspects of various system control technologies currently available.
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