4. Multiplex communications
  5. Wide area network
  6. Packet switching

Walter R. Friedrich

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Audio-to-video synchronization system and method for...

Multiplex communications – Special services – Conferencing
Reexamination Certificate

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Controllable PCM state machine user interface

Multiplex communications – Wide area network – Packet switching
Patent

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FDDI configuration management state machine controller

Patent

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Marking keyframes for a communication session

Multiplex communications – Pathfinding or routing
Reexamination Certificate

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Method and apparatus for using far end camera control (FECC)...

Television – Two-way video and voice communication – Conferencing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-495531

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