4. Television
  5. Two-way video and voice communication
  6. User positioning

David M. Folker

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Electronic program guide with interactive areas

Interactive video distribution systems – Operator interface – To facilitate tuning or selection of video signal
Reexamination Certificate

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Electronic program guide with interactive areas

Television – Two-way video and voice communication – User positioning
Patent

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Electronic program guide with interactive areas

Interactive video distribution systems – Operator interface – To facilitate tuning or selection of video signal
Reexamination Certificate

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Remote control device and method for using television schedule i

Television – Receiver circuitry – Remote control
Patent

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System and method for using television schedule information

Television – Combined with diverse art device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1351623

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