Television – Two-way video and voice communication – User positioning
Patent
1997-12-10
1999-08-10
Flynn, Nathan
Television
Two-way video and voice communication
User positioning
348734, 348 6, 348 12, H04N 710
Patent
active
059366605
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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General Instrument, "It turns a television into a video store, shopping, mall, library, brokerage house and more," Introducing the CFT 2200 from General Insturment.
Flynn Nathan
Rockwell Semiconductor System, Inc.
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