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

David P. Arnold

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Communication network integrating voice data and video with dist

Multiplex communications – Wide area network – Packet switching
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MEMS based acoustic array

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker – With piezoelectric microphone
Reexamination Certificate

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Profile ID: LFUS-PAI-P-737710

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