Enhanced versatility of a program control by a combination of technologies
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United States of America Patent
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Apr 12, 1994
Issued Date -
N/A
app pub date -
May 20, 1992
filing date -
Mar 10, 1988
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A program control system for controlling access to premium programming and/or premium channels comprises a program control apparatus which may incorporate one or more subscriber modules. The subscriber modules may use one or more different types of program control technologies to provide different subscribers with different levels of access as well as different levels of security. One subscriber module may comprise a program control apparatus for interdicting premium programming signals transmitted 'in the clear'. Other modules may comprise positive or negative traps or bandstop filters. The program control apparatus allows a cable television provider to apply new or different program control technologies on a subscriber by subscriber basis.
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Family
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