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Class Information
Number: 381/122
Name: Electrical audio signal processing systems and devices > Having microphone
Description: Subject matter including a generic microphone combined with an element having diverse function (e.g., a microphone and an amplifier).










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8705761 Entertainment system and earphone Apr. 22, 2014
8705778 Method and apparatus for generating and playing audio signals, and system for processing audio signals Apr. 22, 2014
8693703 Method of combining at least two audio signals and a microphone system comprising at least two microphones Apr. 8, 2014
8693707 Signal processing circuit Apr. 8, 2014
8687820 Stereo microphone processing for teleconferencing Apr. 1, 2014
8687823 Microphone interface and method of operation Apr. 1, 2014
8682003 Equipment with optical paths for noise cancellation signals Mar. 25, 2014
8675891 Power supply unit with noise reduction capability Mar. 18, 2014
8675896 Apparatus and method for audio signal processing in dual standby mobile communication terminal Mar. 18, 2014
8666090 Microphone modeling system and method Mar. 4, 2014
8660275 Microphone non-uniformity compensation system Feb. 25, 2014
8660286 Speaker system Feb. 25, 2014
8654990 Multiple microphone based directional sound filter Feb. 18, 2014
8649534 Audio interface device and method Feb. 11, 2014
8649528 Microphone unit with internal A/D converter Feb. 11, 2014
8644525 Virtual microphones in electronic conferencing systems Feb. 4, 2014
8644529 Fully differential low-noise capacitor microphone circuit Feb. 4, 2014
8638955 Voice input device, method of producing the same, and information processing system Jan. 28, 2014
8634572 Method and apparatus for ambient sound therapy user interface and control system Jan. 21, 2014
8634565 Audio signal processing apparatus, audio signal processing method, and program Jan. 21, 2014
8625815 Vehicular rearview mirror system Jan. 7, 2014
8615092 Sound processing device, correcting device, correcting method and recording medium Dec. 24, 2013
8611555 Robot head with artificial ears Dec. 17, 2013
8605920 Condenser microphone having flexure hinge diaphragm and method of manufacturing the same Dec. 10, 2013
8600069 Multi-channel active noise control system with channel equalization Dec. 3, 2013
8588431 Electrical system for a speaker and its control Nov. 19, 2013
8588433 Electret microphone circuit Nov. 19, 2013
8582787 Preamplifier circuit for a microelectromechanical capacitive acoustic transducer Nov. 12, 2013
8582783 Surround sound generation from a microphone array Nov. 12, 2013
8577052 Headphone accessory Nov. 5, 2013
8577057 Digital dual microphone module with intelligent cross fading Nov. 5, 2013
8571238 Microphone Oct. 29, 2013
8565445 Combining audio signals based on ranges of phase difference Oct. 22, 2013
8565446 Estimating direction of arrival from plural microphones Oct. 22, 2013
8565456 Hearing aid Oct. 22, 2013
8559643 Stereo microphone unit and stereo microphone Oct. 15, 2013
8553903 Sound-direction detector having a miniature sensor Oct. 8, 2013
8553906 Apparatus for enabling karaoke Oct. 8, 2013
8526625 Stereo microphone Sep. 3, 2013
8526632 Microphone array for a camera speakerphone Sep. 3, 2013
8526633 Acoustic apparatus Sep. 3, 2013
8520860 Modular mobile computing headset Aug. 27, 2013
8520865 Display apparatus, projector, and control method Aug. 27, 2013
8515100 Programmable microphone Aug. 20, 2013
8515093 Input signal mismatch compensation system Aug. 20, 2013
8509857 Headsets Aug. 13, 2013
8502717 Analog-to-digital converter, sound processing device, and method for analog-to-digital conversion Aug. 6, 2013
8502718 Analog-to-digital converter and analog-to-digital conversion method Aug. 6, 2013
8494173 Integrated circuit with configurable output cell Jul. 23, 2013
8488799 Method and system for sound monitoring over a network Jul. 16, 2013

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