4. Pulse or digital communications
  5. Bandwidth reduction or expansion
  6. Television or motion video signal

Toshiya Suganuma

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Audio band signal transmission system and method

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate

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Digital audio signal transmitting apparatus

Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Patent

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Echo canceler

Telephonic communications – Echo cancellation or suppression
Reexamination Certificate

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Voice transmitting apparatus, a voice transmitting method,...

Multiplex communications – Channel assignment techniques – Only active channels transmitted
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1010549

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