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4800 BPS interoperable relp system

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

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A method for indicating the presence of speech in an audio signa

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
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Acoustic device for custom installation

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Multiple channel
Patent

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Acoustic feedback control of microphone positioning and speaking

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

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Acoustic heterodyne device and method

Electrical audio signal processing systems and devices – One-way audio signal program distribution
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Acoustic recognition system using accumulate power series

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

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
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Acoustic sound system for a room

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
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Acoustic system comprised of components connected by wireless

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Near field
Reexamination Certificate

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Active vibration control

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

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Adaptation of acoustic prototype vectors in a speech recognition

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

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Adapter connectable between audio amplifier and transmitter...

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Multiple channel
Reexamination Certificate

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Adaptive automatic discrete utterance recognition

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

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Adaptive bit allocator

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
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Adaptive bit assignment transform coding according to power dist

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

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Adaptive differential, pulse code modulation sound generator

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

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Adaptive extrema coding signal processing system

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

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Adaptive howling canceller

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

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Adaptive method and apparatus for coding speech

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
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Adaptive multivariate estimating apparatus

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