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Apparatus and method for reproducing a digital audio signal...

Electrical audio signal processing systems and devices – Noise or distortion suppression – Soft switching – muting – or noise gating
Reexamination Certificate

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Apparatus and method for reproducing high fidelity sound

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

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Apparatus and method for simulating a human mastoid

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Testing of hearing aids
Patent

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Apparatus and method for simultaneous estimation of transfer...

Electrical audio signal processing systems and devices – Sound effects
Reexamination Certificate

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Apparatus and method for smooth audio scaling

Electrical audio signal processing systems and devices – Including amplitude or volume control
Patent

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Apparatus and method for speech recognition

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

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Apparatus and method for speech signal level change suppression

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

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Apparatus and method for speech signal processing

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

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Apparatus and method for suppressing feedback

Electrical audio signal processing systems and devices – Feedback suppression
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Apparatus and method for synthesizing pseudo-stereophonic...

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
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Apparatus and method for testing attenuation of in-use insert he

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Testing of hearing aids
Patent

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Apparatus and method for the active control of air moving device

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

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Apparatus and method for transmitting sound

Electrical audio signal processing systems and devices – Headphone circuits
Reexamination Certificate

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Apparatus and method for vibratory signal detection

Electrical audio signal processing systems and devices – Sound effects – Reverberators
Patent

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Apparatus and method of canceling vocal component in an...

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

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Apparatus and method of determining an impulse response and...

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

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Apparatus and method of limiting power applied to a loudspeaker

Electrical audio signal processing systems and devices – Audio transducer protection circuitry
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Apparatus and method of limiting power applied to a loudspeaker

Electrical audio signal processing systems and devices – Audio transducer protection circuitry
Reexamination Certificate

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Apparatus and method of providing stereo television audio signal

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

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Apparatus and method of reducing the bit rate of PCM speech

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

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