4. Facsimile and static presentation processing
  5. Static presentation processing
  6. Attribute control

Christopher R. Hansen

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Asymmetric duplex modem utilizing narrow band echo cancellation

Multiplex communications – Duplex – Transmit/receive interaction control
Patent

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Asymmetric duplex modem utilizing narrow band echo cancellation

Multiplex communications – Wide area network – Packet switching
Patent

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Component video accumulation effect

Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent

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Digital network access server

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Patent

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Method and apparatus for detecting multiple telephone...

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection
Reexamination Certificate

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Profile ID: LFUS-PAI-P-127401

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