4. Electrical audio signal processing systems and devices
  5. One-way audio signal program distribution
  6. Public address system

Jack E. Porter

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Apparatus and methods for the selective addition of noise to tem

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

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Noise compensation in speech recognition apparatus

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
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Noise suppression and channel equalization preprocessor for...

Data processing: speech signal processing – linguistics – language – Speech signal processing – For storage or transmission
Reexamination Certificate

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Profile ID: LFUS-PAI-P-847471

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