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Apparatus and method for enhancing the perceived sound image of

Electrical audio signal processing systems and devices – Binaural and stereophonic – Center channel
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Apparatus and method for equalizing a soundfield

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

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Apparatus and method for evaluating audio distorting

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

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Apparatus and method for generating harmonics in an audio...

Electrical audio signal processing systems and devices – Including frequency control
Reexamination Certificate

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Apparatus and method for generating harmonics in an audio...

Electrical audio signal processing systems and devices – Including frequency control
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Apparatus and method for improving voice clarity

Electrical audio signal processing systems and devices – Including amplitude or volume control – Automatic
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Apparatus and method for influencing oscillations in the passeng

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Within cabin or compartment of vehicle
Patent

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Apparatus and method for localizing sound image

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

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Apparatus and method for magnetically controlling a hearing aid

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

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Apparatus and method for maintaining a constant speech...

Electrical audio signal processing systems and devices – Including amplitude or volume control – Automatic
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Apparatus and method for making precipitation audible

Electrical audio signal processing systems and devices – With musical instrument
Patent

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Apparatus and method for manipulating devices in orifices

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

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Apparatus and method for masking audio signals in a signal...

Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
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Apparatus and method for matching the response of...

Electrical audio signal processing systems and devices – Directive circuits for microphones
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Apparatus and method for matching the response of...

Electrical audio signal processing systems and devices – Directive circuits for microphones
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Apparatus and method for minimizing multipath interference

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

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Apparatus and method for modifying a speech waveform to compensa

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

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Apparatus and method for monitoring speaker cone...

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

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Apparatus and method for multichannel sound reproduction system

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

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Apparatus and method for noise-dependent adaptation of an...

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