Manually closable seal
Method of controlling scrambling and unscrambling in a pay TV system
Television burst service
Television information system
CATV System Patent #: 4455570
ApplicationNo. 06/536660 filed on 09/28/1983
US Classes:725/93, Control process348/734, Remote control380/241, Having program ID or authorization455/151.2, Wireless link (sonic, RF, or infrared)455/151.4, Plural electronic devices controlled455/181.1, Time controlled725/1, BILLING IN VIDEO DISTRIBUTION SYSTEM725/116, Control process725/122, Return path via telephone network725/131Receiver (e.g., set-top box)
ExaminersPrimary: Coles, Sr., Edward L.
Attorney, Agent or Firm
International ClassH04N 7/173 (20060101)
AbstractSelected program code and time data entered into a subscriber command terminal automatically establishes a two-way telephone link with a library computer from which instruction data is transferred to the command terminal for subsequent programmed reception and reproduction of broadcast signals by a standard receiver coupled to the command terminal. The broadcast signal originates at a library of program records linked by a one-way broadcast transmitter to a plurality of the subscriber command terminals.