| Patents for H04R 3 - Circuits for transducers (18,190) |
|---|
| 01/23/2013 | CN202696869U Vehicle-mounted speaker |
| 01/23/2013 | CN202696868U Bluetooth audio converter |
| 01/23/2013 | CN202696867U Pickup amplification device for speaker |
| 01/23/2013 | CN202696866U Vehicle-mounted player capable of communicating with mobile phone |
| 01/23/2013 | CN202696865U Digital power amplifier power supply |
| 01/23/2013 | CN202696864U Microphone (MIC) module in learning machine circuit |
| 01/23/2013 | CN202696839U Wireless microphone |
| 01/23/2013 | CN202696838U Wireless microphone structure |
| 01/23/2013 | CN202696837U Throat vibration type sensor and hand-free communication device |
| 01/23/2013 | CN102892061A Circuit and method for MIC audio noise filtering |
| 01/23/2013 | CN102892060A Polarity-reversal self-adapting circuit of four-segment audio interface |
| 01/23/2013 | CN102892059A Detection and GSM noise filtering |
| 01/23/2013 | CN102892058A Method and device for automatically regulating volume |
| 01/23/2013 | CN101227763B Method and device for processing sound effect |
| 01/23/2013 | CN101227759B Earphone device with automatic volume control function |
| 01/22/2013 | US8358789 Adaptive microphone system for a hearing device and associated operating method |
| 01/22/2013 | CA2531384C Handling broadcast and multicast traffic as unicast traffic in a wireless network |
| 01/17/2013 | WO2013009965A1 Microphone buffer circuit with input filter |
| 01/17/2013 | WO2013009949A1 Microphone array processing system |
| 01/17/2013 | WO2013009548A1 Estimating nonlinear distortion and parameter tuning for boosting sound |
| 01/17/2013 | WO2013008386A1 Portable apparatus and notification sound output method |
| 01/17/2013 | WO2013007309A1 Speech enhancement system and method |
| 01/17/2013 | US20130016852 Sound source localization using phase spectrum |
| 01/17/2013 | US20130016847 Method and apparatus for active sound masking |
| 01/17/2013 | DE102012103553A1 Audiosystem und verfahren zur verwendung von adaptiver intelligenz, um den informationsgehalt von audiosignalen in verbraucheraudio zu unterscheiden und eine signalverarbeitungsfunktion zu steuern Audio system and method for use of adaptive intelligence to distinguish the information content of audio signals in consumer audio and control a signal processing function |
| 01/16/2013 | EP2545718A1 Communication eyewear assembly |
| 01/16/2013 | EP2545716A1 Apparatus, method and computer program for controlling an acoustic signal |
| 01/16/2013 | EP2545715A1 Electrostatic parallel plate actuators whose moving elements are driven only by electrostatic force and methods useful in conjunction therewith |
| 01/16/2013 | CN202679621U Electret microphone and audio acquisition circuit |
| 01/16/2013 | CN202679592U Self-adaptive sounding electronic speaker |
| 01/16/2013 | CN202679591U Sound box with squelch delay circuit |
| 01/16/2013 | CN202679590U Voice frequency distributor |
| 01/16/2013 | CN202679572U Recording microphone |
| 01/16/2013 | CN202679570U Single-tube frequency modulation wireless microphone |
| 01/16/2013 | CN102883244A Acoustic shock protection device and method thereof |
| 01/16/2013 | CN102883243A Method and device for balancing frequency response of sound reproduction system through online iteration |
| 01/16/2013 | CN102883242A Control device for driving multi-function speaker and related control method thereof |
| 01/16/2013 | CN102883241A Vehicle-mounted system, and method thereof for removing interference voice |
| 01/16/2013 | CN102883240A Generator sounding method for voice-operated illuminating lamp |
| 01/16/2013 | CN102881194A Electromagnetic-radiation free antenatal training equipment with volume and audio control functions |
| 01/16/2013 | CN101771912B Acoustic sensing device |
| 01/16/2013 | CN101378607B Sound processing apparatus and method for correcting phase difference |
| 01/16/2013 | CN101291208B Method for the transmission and reception of data contents in a communications network and corresponding devices |
| 01/15/2013 | US8355514 Audio encoding to convey auxiliary information, and media embodying same |
| 01/10/2013 | WO2013005550A1 Direct sound extraction device and reverberant sound extraction device |
| 01/10/2013 | WO2012082721A3 Method and apparatus for evaluating dynamic middle ear muscle activity |
| 01/10/2013 | US20130012274 Second microphone device of a mobile terminal |
| 01/10/2013 | US20130010980 Vehicle direction identification device, vehicle direction identification method and program therefor |
| 01/10/2013 | DE102011106634A1 Hörgerät und Verfahren zum Eliminieren akustischer Rückkopplungen bei Verstärkung akustischer Signale Hearing aid and method for eliminating acoustic feedback gain in acoustic signals |
| 01/09/2013 | CN202663606U Audio frequency and level control acousto-optic device as well as acousto-optic machine |
| 01/09/2013 | CN202663532U Wireless movable sound box |
| 01/09/2013 | CN202663531U Power amplifier device with alt and bass adjustment |
| 01/09/2013 | CN202663530U Amplifier circuit |
| 01/09/2013 | CN202663524U Packaging box for electronic equipment |
| 01/09/2013 | CN202662283U DSP digital audio frequency matrix sound box manager |
| 01/09/2013 | CN202662282U Digital karaoke pre-processor |
| 01/09/2013 | CN102870436A Diffracted sound reduction device, diffracted sound reduction method, and filter coefficient determination method |
| 01/09/2013 | CN102868956A Noise gate circuit and voice frequency power amplification equipment |
| 01/09/2013 | CN102868955A Portable equipment for controlling volume and audio output |
| 01/09/2013 | CN102868951A Sensing type early-warning earphone reminder |
| 01/09/2013 | CN102867517A Adaptive active noise canceling for handset |
| 01/09/2013 | CN102866296A Method and system for evaluating non-linear distortion, method and system for adjusting parameters |
| 01/09/2013 | CN101917654B Sounding device for producing resonance by combining container cavity |
| 01/09/2013 | CN101494809B Sound play device |
| 01/08/2013 | US8351636 Glasses frame comprising an integrated acoustic communication system for communication with a mobile radio appliance, and corresponding method |
| 01/08/2013 | US8351626 Audio amplification apparatus |
| 01/08/2013 | US8351624 Audio output apparatus, audio input apparatus, audio control apparatus, audio control system, and audio control method |
| 01/08/2013 | US8351618 Dereverberation and noise reduction method for microphone array and apparatus using the same |
| 01/08/2013 | US8351617 Method for phase mismatch calibration for an array microphone and phase calibration module for the same |
| 01/03/2013 | WO2013002401A1 Speaker array apparatus |
| 01/03/2013 | WO2013001028A1 Pre-filtering for loudspeakers protection |
| 01/03/2013 | WO2012116083A3 Systems and methods for acoustic echo cancellation with wireless microphones and speakers |
| 01/03/2013 | DE102011078552A1 Method for producing audio signal to be transmitted to e.g. headphone of audio arrangement in mobile phone, involves producing audio signal by changing input signal based on frequency response of transducer and preset volume of sound signal |
| 01/02/2013 | EP2541973A1 Feedback control in a listening device |
| 01/02/2013 | EP2541971A1 Sound processing device and sound processing method |
| 01/02/2013 | EP2541970A1 Pre-filtering for loudspeakers protection |
| 01/02/2013 | EP2541765A1 Low-noise microphone pre-amplifier with active load element |
| 01/02/2013 | EP2540101A1 Modifying spatial image of a plurality of audio signals |
| 01/02/2013 | EP2540094A1 Audio source localization |
| 01/02/2013 | CN202652509U Circuit board for Bluetooth earphone |
| 01/02/2013 | CN202652508U Power protection circuit |
| 01/02/2013 | CN202652502U Multi-cell powering portable sound box |
| 01/02/2013 | CN202652499U Dual-mode resonance portable sound box |
| 01/02/2013 | CN202652495U Bluetooth earphone movement |
| 01/02/2013 | CN102860048A Modifying spatial image of a plurality of audio signals |
| 01/02/2013 | CN102860043A Apparatus, method and computer program for controlling an acoustic signal |
| 01/02/2013 | CN102860042A Microphone assembly |
| 01/02/2013 | CN102857848A Audio and video control platform with volume regulating function |
| 01/02/2013 | CN102857847A Noise reduction system for public transportation |
| 01/02/2013 | CN102855880A De-noising method for multi-microphone audio equipment |
| 01/02/2013 | CN102324237B Microphone-array speech-beam forming method as well as speech-signal processing device and system |
| 01/02/2013 | CN102158170B Drive mechanism |
| 01/02/2013 | CN101946526B Stereophonic widening |
| 01/02/2013 | CN101877237B Noise reducing device and noise determining method |
| 01/02/2013 | CN101822072B Image capturing apparatus |
| 01/02/2013 | CN101641966B Piezoelectric sound transducer |
| 01/02/2013 | CN101489159B Electronic device and electronic device accessory |
| 01/01/2013 | US8345894 Impedance converter for microphone and microphone |
| 01/01/2013 | US8345883 Audio playback method and apparatus using line array speaker unit |
| 12/27/2012 | WO2012176932A1 Speech processing device, speech processing method, and speech processing program |