| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 07/27/2011 | EP2348750A1 Control of a loudspeaker output |
| 07/27/2011 | EP2347603A1 A system and method for producing a directional output signal |
| 07/27/2011 | EP2208362B1 Method for synthesizing a microphone signal |
| 07/27/2011 | EP1040728B1 Peak to peak signal detector for audio system |
| 07/27/2011 | CN201910908U Alt protector in KTV sound box |
| 07/27/2011 | CN201910901U Multifunctional karaoke earphone |
| 07/27/2011 | CN201910897U Solar automobile Bluetooth telephone loudspeaker box |
| 07/27/2011 | CN1838573B Digital mixing method and apparatus |
| 07/27/2011 | CN102138337A Wearable headset with self-contained vocal feedback and vocal command |
| 07/27/2011 | CN102137319A Earphone for eliminating noise and drive circuit thereof |
| 07/27/2011 | CN102137318A Method and device for controlling adapterization |
| 07/27/2011 | CN102137316A Digital high-definition multichannel microphone system |
| 07/27/2011 | CN101170842B Highly clear non-distortion audio frequency divider |
| 07/27/2011 | CN101166019B Audio signal processing device and method |
| 07/26/2011 | US7986794 Small array microphone apparatus and beam forming method thereof |
| 07/21/2011 | WO2011086617A1 Amplifier with high-frequency noise removal function, microphone module and sensor module |
| 07/21/2011 | US20110176700 Earphone device and earphone device main body |
| 07/21/2011 | US20110176692 Capacitor microphone |
| 07/21/2011 | US20110176691 Sound control apparatus, sound control method, and sound control program |
| 07/21/2011 | US20110176690 Integrated circuit device, voice input device and information processing system |
| 07/21/2011 | DE102010004882A1 Group radiator e.g. sound pillar, for use in loud speaker or producing high sound level to long distance, has speaker chassis and/or group of speaker chassis maintaining reverse offset vertical to longitudinal axis and to another chassis |
| 07/21/2011 | DE102010004667A1 Gehäuse und Lautsprechermodul Housing and speaker module |
| 07/20/2011 | EP2346269A1 Acoustic oscillator and image generation device |
| 07/20/2011 | EP2346045A2 Multi-channel audio data output control apparatus, output controlling method, program, and output control system |
| 07/20/2011 | CN201904907U Pet call replay unit |
| 07/20/2011 | CN201904906U Conversion interface circuit of audio frequency equipment |
| 07/20/2011 | CN201904905U Acoustic generator used in toilet |
| 07/20/2011 | CN1622689B Electronic equipment, video camera apparatus and method for controlling them |
| 07/20/2011 | CN102132584A Ultrasonic transducer, electronic device, and ultrasonic endoscope |
| 07/20/2011 | CN102131136A Adaptive ambient sound suppression and speech tracking |
| 07/20/2011 | CN101533641B Method for correcting channel delay parameters of multichannel signals and device |
| 07/20/2011 | CN101203061B Method for parallel processing real time gathering mixed audio blindness separating unit |
| 07/19/2011 | US7983429 Speaker system utilizing input from a transducer in proximity to a separate speaker |
| 07/19/2011 | US7981063 Method of simulated wave massage of the body |
| 07/14/2011 | WO2011085148A1 Compressor based dynamic bass enhancement with eq |
| 07/14/2011 | WO2011083610A1 Acoustic characteristic adjuster for vehicle |
| 07/14/2011 | US20110170714 Fast precision charge pump |
| 07/14/2011 | US20110170705 Directional microphone device |
| 07/14/2011 | US20110170701 Active noise control device |
| 07/14/2011 | DE112009001037T5 Schnelle Präzisionsladungspumpe Fast precision charge pump |
| 07/14/2011 | DE102010004312A1 Lautsprecher und System zur aktiven Geräuschunterdrückung Speaker and system for active noise cancellation |
| 07/14/2011 | DE102010004098A1 Resonance sound producing part, has oscillation circuits whose modified signal is added to original signal in weak form when resonance produces strong delay of original signal such that fine sound is produced |
| 07/14/2011 | DE102009055889A1 Signal processing circuit for creation of speaker signal in mobile radio terminal, has adaptation block using new coefficients in set of coefficients so that resulting transfer functions of filters are provided inverse to each other |
| 07/13/2011 | EP2342906A2 Multidirectional multisound information system |
| 07/13/2011 | EP2342846A1 Bias arrangement and apparatus |
| 07/13/2011 | EP2342845A1 Biasing arrangement, electronic apparatus, biasing method, and computer program |
| 07/13/2011 | CN201898619U Device for directly driving charged thin film loudspeaker |
| 07/13/2011 | CN201898614U 电容式麦克风 Condenser Microphone |
| 07/13/2011 | CN201898602U Passive sound box interface of mobile phone |
| 07/13/2011 | CN201898601U Sound box with video output port |
| 07/13/2011 | CN201898600U Micro-electromechanical system (MEMS) microphone chip |
| 07/13/2011 | CN201898599U Circuit capable of eliminating POP noise and mobile terminal |
| 07/13/2011 | CN201898592U Multifunctional USB (Universal Serial Bus) sound box chip and sound box device |
| 07/13/2011 | CN102124758A Hearing aid, hearing assistance system, walking detection method, and hearing assistance method |
| 07/13/2011 | CN102124754A Recorder/reproducer |
| 07/13/2011 | CN102123339A Hearing-aid made of TDA2822M |
| 07/13/2011 | CN102123338A Frequency modulation wireless microphone manufactured by nand gate |
| 07/13/2011 | CN102123337A Noise gate circuit system and designing method thereof |
| 07/13/2011 | CN101246690B Sound processing apparatus, and sound processing method |
| 07/13/2011 | CN101026905B Signal transmission device and method |
| 07/12/2011 | US7978866 Acoustics correcting apparatus |
| 07/12/2011 | US7978863 Apparatus and method to provide advanced microphone bias |
| 07/12/2011 | CA2561878C Method and system for data logging in a listening device |
| 07/07/2011 | WO2011082406A1 Self-powered audio speaker having modular components |
| 07/07/2011 | WO2011081527A1 Method and system for determining the direction between a detection point and an acoustic source |
| 07/07/2011 | WO2011079875A1 Monitoring and correcting apparatus for mounted transducers and method thereof |
| 07/07/2011 | WO2011079722A1 Nonenveloped earplug type earphone, device and method for enhancing sound at its earpiece |
| 07/07/2011 | US20110164763 Audio and video recording and reproduction apparatus for reproducing audio signals having different volume levels |
| 07/07/2011 | US20110164761 Microphone array system and method for sound acquisition |
| 07/07/2011 | US20110164760 Sound source tracking device |
| 07/07/2011 | DE102010055476A1 Signalverarbeitungsgerät, Mikrofonarrayvorrichtung und Speichermedium, das ein Signalverarbeitungsprogramm speichert A signal processing apparatus, a microphone array device and storage medium storing a signal processing program |
| 07/07/2011 | DE102010000686A1 Kondensatormikrofon Condenser microphone |
| 07/06/2011 | CN201893910U Intelligent automatic audio mixer with single-channel input volume remote control function |
| 07/06/2011 | CN201893908U Filter and antinoise earplug |
| 07/06/2011 | CN201893905U Earphone device with camera shooting function |
| 07/06/2011 | CN1976544B Capacitive load driving circuit, electrostatic transducer, ultrasonic speaker |
| 07/06/2011 | CN102118676A Digital hearing aid and method for adjusting parameters thereof by using sound from dual-tone multi-frequency key |
| 07/06/2011 | CN102118675A Hearing aid with means for adaptive feedback compensation |
| 07/06/2011 | CN102118669A Audio device |
| 07/06/2011 | CN102118668A Loudspeaker system and loudspeaker driving circuit |
| 07/06/2011 | CN102118667A Unsealed earplug-type headset, and device and method for enhancing voice of receiving end |
| 07/06/2011 | CN102118666A Device for automatically adjusting volume of audio equipment according to frequency of outside sound |
| 07/06/2011 | CN102118665A Automatic tuning device and method and multimedia player |
| 07/06/2011 | CN101184346B Filter circuit for noise cancellation, noise reduction signal production method and noise canceling system |
| 07/05/2011 | US7974714 Intelligent electronic appliance system and method |
| 06/30/2011 | WO2011078216A1 Microphone unit and voice input device provided therewith |
| 06/30/2011 | WO2011076290A1 An apparatus |
| 06/30/2011 | WO2011076288A1 Loudspeaker protection apparatus and method thereof |
| 06/30/2011 | US20110158426 Signal processing apparatus, microphone array device, and storage medium storing signal processing program |
| 06/30/2011 | US20110158425 Microphone directivity control apparatus |
| 06/30/2011 | US20110158416 Sound pickup apparatus and sound pickup method |
| 06/30/2011 | DE102009060724A1 Method for reduction of high noise levels, has integrating transmitting device in scanner cash register, which stays in active connection with receivers through radio signals |
| 06/30/2011 | DE102009060094A1 Verfahren und Hörgerät zur Rückkopplungserkennung und -unterdrückung mit einem Richtmikrofon Method and hearing aid feedback detection and suppression with a directional microphone |
| 06/30/2011 | DE102004064132B4 Electrical storage device module e.g. for battery has controllable switch for interrupting power supply from battery, on detecting that battery current fluctuation falls below predetermined value over predetermined time |
| 06/30/2011 | CA2785080A1 An apparatus |
| 06/29/2011 | EP2339868A2 Microphone directivity control apparatus |
| 06/29/2011 | EP2339574A1 Speech detector |
| 06/29/2011 | EP2338285A1 System for picking-up a user's voice |
| 06/29/2011 | CN201887933U Intelligent audio signal selector |
| 06/29/2011 | CN201887932U Car sound system |