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Folded coaxial transmission line loudspeaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate

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Folded coaxial transmission line loudspeaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate

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Folding electronic device

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

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Force balance microphone

Electrical audio signal processing systems and devices – Microphone feedback
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Foreground music system using current amplification

Electrical audio signal processing systems and devices – With amplifier
Patent

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Foreground music system using current amplification

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

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Formant pattern matching vocoder

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

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Formant tracker

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

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Formant-based speech synthesizer

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

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Forming beams with nulls directed at noise sources

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

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Formulation of complex room impulse responses from 3-D audio...

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

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Four dimensional acoustical audio system

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

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Four dimensional acoustical audio system for a homogeneous sound

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

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Frame comparison method for word recognition in high noise envir

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

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Frequency attenuation compensated pneumatic headphone and liquid

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

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Frequency attenuation compensated pneumatic headphone and liquid

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

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Frequency bandwidth dependent exponential release for dynamic fi

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

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Frequency characteristic shaping circuitry and method

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

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Frequency control system in an audio device

Electrical audio signal processing systems and devices – Including frequency control – Having automatic equalizer circuit
Patent

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Frequency dependent excursion limiter

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