4. Telephonic communications
  5. Echo cancellation or suppression
  6. Combined diverse function
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Phone privacy and unobtrusiveness via voice cancellation

Telephonic communications – Echo cancellation or suppression – Combined diverse function
Reexamination Certificate

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Portable speakerphone device with selective mixing

Telephonic communications – Echo cancellation or suppression – Combined diverse function
Reexamination Certificate

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Real time processing and management method for cancelling...

Telephonic communications – Echo cancellation or suppression – Combined diverse function
Reexamination Certificate

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Small array microphone for acoustic echo cancellation and...

Telephonic communications – Echo cancellation or suppression – Combined diverse function
Reexamination Certificate

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Synchronization of echo cancellers in a voice processing system

Telephonic communications – Echo cancellation or suppression – Combined diverse function
Reexamination Certificate

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Synchronization of voice boundaries and their use by echo...

Telephonic communications – Echo cancellation or suppression – Combined diverse function
Reexamination Certificate

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