Digital video converter box for subscriber/home with multiple television sets
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United States of America Patent
Stats
-
Aug 10, 1999
Grant Date -
N/A
app pub date -
Dec 10, 1997
filing date -
Dec 12, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A digital video conversion system housing multiple converter chains of units in a single main box chassis. A preferred embodiment uses only a single conditional access unit to authorize decryption of premium channels in response to a smartcard. The conversion system allows a single converter box sharing consolidated decryption (access control) circuitry and a single remote control receiver to provide video output for multiple television sets on the subscriber's premises. In addition to reducing the subscriber's hardware costs per television set, a common access control allows the video service provider to grant a multiple-set discount on a single smartcard.
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Family
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Cited Art Landscape
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