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Noise reducing device

Electrical audio signal processing systems and devices – Sound or noise masking
Reexamination Certificate

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Noise reducing device

Electrical audio signal processing systems and devices – Hearing protectors – electrical
Patent

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Noise reducing headphones with sound conditioning

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

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Noise reducing method, noise reducing apparatus and telephone se

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

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Noise reducing microphone apparatus

Electrical audio signal processing systems and devices – Noise or distortion suppression – Interpolation
Patent

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Noise reducing receiver device

Electrical audio signal processing systems and devices – Hearing protectors – electrical
Patent

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Noise reducing system

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Counterwave generation control path
Patent

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Noise reducing system for voice microphones

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

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Noise reduction apparatus

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within cabin or compartment of vehicle
Reexamination Certificate

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Noise reduction apparatus

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

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Noise reduction apparatus and audio output apparatus

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

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Noise reduction apparatus and method

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

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Noise reduction apparatus and method

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

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Noise reduction apparatus and noise reduction method

Electrical audio signal processing systems and devices – Noise or distortion suppression – Peak limiting or pulsive noise compensation
Reexamination Certificate

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Noise reduction apparatus in an FM stereo tuner

Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent

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Noise reduction apparatus in an FM stereo tuner

Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent

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Noise reduction by using spectral decomposition and non-linear t

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent

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Noise reduction circuit of synthetic speech generating apparatus

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent

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Noise reduction circuit, noise reduction apparatus, and noise re

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

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Noise reduction device in an electroacoustic system

Electrical audio signal processing systems and devices – Including amplitude or volume control – With amplitude compression/expansion
Patent

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