4. Electrical audio signal processing systems and devices
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Acoustic attenuation device with active double wall

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

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Acoustic attenuation device with active double wall

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

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Acoustic audio transducer with aerogel diaphragm

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

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Acoustic beam forming with robust signal estimation

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

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Acoustic bracket system

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Driven diverse static structure
Reexamination Certificate

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Acoustic compliance adjuster

Electrical audio signal processing systems and devices – Having non-electrical feature – Loudspeakers driven in given phase relationship
Reexamination Certificate

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Acoustic conditioner

Electrical audio signal processing systems and devices – Hearing protectors – electrical
Reexamination Certificate

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Acoustic conductance and silencer utilizing same

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

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Acoustic control circuit for frequency control of the flashing o

Electrical audio signal processing systems and devices – Monitoring of sound
Patent

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Acoustic cooling system with noise reduction function

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

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Acoustic correction apparatus

Electrical audio signal processing systems and devices – Binaural and stereophonic
Reexamination Certificate

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Acoustic correction apparatus

Electrical audio signal processing systems and devices – Binaural and stereophonic
Patent

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Acoustic correction apparatus

Electrical audio signal processing systems and devices – Including frequency control
Reexamination Certificate

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Acoustic correction apparatus

Electrical audio signal processing systems and devices – Binaural and stereophonic
Reexamination Certificate

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Acoustic correction apparatus

Electrical audio signal processing systems and devices – Binaural and stereophonic
Reexamination Certificate

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Acoustic correction apparatus

Electrical audio signal processing systems and devices – Binaural and stereophonic
Reexamination Certificate

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Acoustic correction apparatus and acoustic correction method

Electrical audio signal processing systems and devices – Noise or distortion suppression
Reexamination Certificate

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Acoustic correction apparatus and method for vehicle audio...

Electrical audio signal processing systems and devices – Vehicle
Reexamination Certificate

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Acoustic coupler for skin contact hearing enhancement devices

Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Reexamination Certificate

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Acoustic crosstalk cancellation system

Electrical audio signal processing systems and devices – Binaural and stereophonic
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