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

Istvan L. Ver

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Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within duct
Patent

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Simultaneous enhancement of transmission loss and absorption...

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Particular transducer or enclosure structure
Reexamination Certificate

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Systems and methods for adaptive noise cancellation

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-404322

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