4. Electrical audio signal processing systems and devices
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Wafer fabricated electroacoustic transducer

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Microphone capsule only
Patent

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Wagering game with user volume control

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

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Wall hanged audio arrangement

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Mounting or support feature of housed loudspeaker
Reexamination Certificate

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Wall mounted speaker enclosure

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Mounting or support feature of housed loudspeaker
Reexamination Certificate

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Wall mounted speaker system, apparatus and method

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

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Wall-hanging entertainment system

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

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Warning device programmable to be sensitive to preselected sound

Electrical audio signal processing systems and devices – Monitoring of sound
Patent

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Water-proof speaker unit

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent

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Water-resistant device for protecting an electronic sound produc

Electrical audio signal processing systems and devices – Noise or distortion suppression – Interpolation
Patent

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Watermarking of digital images using wavelet and discrete...

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

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Waterproof acoustic structure applicable in conjunction with...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Mounting or support feature of housed loudspeaker
Reexamination Certificate

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Waterproof cover for housing in hospital bed containing...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Mounting or support feature of housed loudspeaker
Reexamination Certificate

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Waterproof microphone

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Patent

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Waterproof microphone

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Microphone capsule only
Reexamination Certificate

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Waterproof microphone and speaker

Electrical audio signal processing systems and devices – Circuitry combined with specific type microphone or loudspeaker
Patent

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Waterproof speaker for use in an automobile

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Waterproof type microphone

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Housed microphone
Reexamination Certificate

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Waterproof vibration plate for speaker

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate

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Wave dependent compressor

Electrical audio signal processing systems and devices – Including amplitude or volume control – With amplitude compression/expansion
Patent

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Wave signal processing system and method

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

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