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Automatic sound volume control device

Electrical audio signal processing systems and devices – Monitoring of sound – Amplification control responsive to ambient sound
Patent

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Automatic sound volume control device for acoustic instruments

Electrical audio signal processing systems and devices – Monitoring of sound – Amplification control responsive to ambient sound
Patent

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Automatic sound volume control method

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

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Automatic sound volume controller

Electrical audio signal processing systems and devices – Monitoring of sound – Amplification control responsive to ambient sound
Patent

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Automatic speech recognizer for real time operation

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

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Automatic stereo/monaural headphone

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

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Automatic stereophonic manipulation system and apparatus for ima

Electrical audio signal processing systems and devices – Binaural and stereophonic
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Automatic stereophonic manipulation system and apparatus for ima

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

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Automatic telephone switch for hearing aid

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

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Automatic telephone switch for hearing aid

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

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Automatic transformer saturation compensation circuit

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

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Automatic turn off system

Electrical audio signal processing systems and devices – Voice controlled
Patent

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Automatic turn-on and turn-off control for battery-powered...

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

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Automatic volume adjusting device and method

Electrical audio signal processing systems and devices – Monitoring of sound – Amplification control responsive to ambient sound
Patent

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Automatic volume and frequency controlled sound masking system

Electrical audio signal processing systems and devices – Sound or noise masking
Patent

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Automatic volume control circuit

Electrical audio signal processing systems and devices – Monitoring of sound – Amplification control responsive to ambient sound
Patent

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Automatic volume control for audio signals

Electrical audio signal processing systems and devices – Including amplitude or volume control – Automatic
Reexamination Certificate

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Automatic volume control for communication system

Electrical audio signal processing systems and devices – Including amplitude or volume control – Automatic
Reexamination Certificate

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Automatic volume control to compensate for ambient noise variati

Electrical audio signal processing systems and devices – Monitoring of sound – Amplification control responsive to ambient sound
Patent

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Automatic volume controlling apparatus

Electrical audio signal processing systems and devices – Monitoring of sound – Amplification control responsive to ambient sound
Patent

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