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

Michel Dufresne

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Cable network data transmission system

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent

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Cable TV system using passwords

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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Cable TV system using passwords

Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent

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CATV network with addressable filters receiving MSK upstream sig

Telecommunications – Interference signal transmission
Patent

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CATV subscriber terminal transmission control

Multiplex communications – Wide area network – Packet switching
Patent

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Profile ID: LFUS-PAI-P-95172

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