4. Electrical audio signal processing systems and devices
  5. Directive circuits for microphones

Richard J. Santiago

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Delay network microphones with harmonic nesting

Electrical audio signal processing systems and devices – Directive circuits for microphones
Reexamination Certificate

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Microphone for simultaneous noise sensing and speech pickup

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Microphone capsule only
Reexamination Certificate

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Microphone grille (HF350/HF700)

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Design Patent

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Profile ID: LFUS-PAI-P-2693937

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