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Aided ear bud

Electrical audio signal processing systems and devices – Hearing aids – electrical – Remote control – wireless – or alarm
Reexamination Certificate

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Air conduction hearing device

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

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Air cooled loudspeaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – By modifying fluid flow
Patent

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Air flow control device for loudspeaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Air intake noise reduction apparatus for automotive vehicle

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

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Air leak self-diagnosis for a communication device

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices
Reexamination Certificate

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Air pump speaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Aircraft communication headset tester

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

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Aircraft headset

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Reexamination Certificate

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All directionally turnable radio microphone

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Reexamination Certificate

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All-digital FM stereo demodulator and demodulation method

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

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All-in-one headset

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

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Alternating variable delay control arrangement and method for pu

Electrical audio signal processing systems and devices – Including phase control
Patent

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Alternative sensing circuit for MEMS microphone and sensing...

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker
Reexamination Certificate

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Altitude-sensitive portable stereo sound set for dancers

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

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AM noise reducing

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

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AM Stereo Broadcasting system

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

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AM stereo decoder for multiple coding systems

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

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AM stereo demodulator

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

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AM stereo detection and audio processing apparatus

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

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