LandOfFree - US Patents - Listing for Electrical audio signal processing systems and devices

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear

3-in-1 anti-noise radio sound-collection device

Electrical audio signal processing systems and devices – Binaural and stereophonic

3D audio signal processing system using rigid sphere and...

Electrical audio signal processing systems and devices – Binaural and stereophonic – Center channel

3D woofer drive circuit

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

4-Channel surround sound generator

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

4800 BPS interoperable relp system

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

5-2-5 matrix encoder and decoder system

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

5-2-5 Matrix system

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

5-2-5 matrix system

Electrical audio signal processing systems and devices – Binaural and stereophonic – Hearing aid

7-channel transmission, compatible with 5-channel transmission a

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

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

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

A/D converter with integrated biasing for a microphone

Electrical audio signal processing systems and devices – Switching

A/V amplifier and method for driving the same

Electrical audio signal processing systems and devices – With amplifier – Feedback

AC coupling and signal amplification using switched capacitors

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

AC line-correlated noise-canceling circuit

Electrical audio signal processing systems and devices – Noise or distortion suppression – Hum or ground loop

AC power source filter for audio video electrical load

Electrical audio signal processing systems and devices – Monitoring of sound

Accident sound detector

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Particular transducer or enclosure structure

Acoustic actuator and passive attenuator incorporating a...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electrostrictive – magnetostrictive – or piezoelectric

Acoustic actuators

Electrical audio signal processing systems and devices – Monitoring of sound

Acoustic analysis