4. Electrical audio signal processing systems and devices
  5. Acoustical noise or sound cancellation
  6. Adjacent ear

Yuji Yamashina

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Microphone apparatus

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Microphone apparatus

Electrical audio signal processing systems and devices – Directive circuits for microphones
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Pressure gradient type microphone apparatus with acoustic termin

Electrical audio signal processing systems and devices – Binaural and stereophonic – Stereo sound pickup device
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Profile ID: LFUS-PAI-P-143873

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