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

Gordon Chang

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Multiple interactive electronic program guide system and...

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

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Robot apparatus and method of controlling the same

Data processing: generic control systems or specific application – Specific application – apparatus or process – Robot control
Reexamination Certificate

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Television schedule system with enhanced features

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

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Profile ID: LFUS-PAI-P-1712842

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