H04R 3 - Circuits for transducers

Patents for H04R 3 - Circuits for transducers (18,190)
10/2011
10/19/2011	CN202014363U Hearing aid manufactured by TDA2822M
10/19/2011	CN202014360U Solar energy automobile bluetooth mobile phone sound box having FM emission function
10/19/2011	CN202014358U Wireless earphones for online games
10/19/2011	CN202014197U USB power source management device and USB loudspeaker system
10/19/2011	CN1972530B Electrostatic transducer, ultrasonic speaker, driving circuit of capacitive load
10/19/2011	CN1672462B Signal strength information dependent control of small electrodynamic transducers in audio systems
10/19/2011	CN102224541A Voice output device
10/19/2011	CN102224403A Methods and apparatus for suppressing ambient noise using multiple audio signals
10/19/2011	CN102223593A Packaged acoustic transducer device with shielding from electromagnetic interference
10/19/2011	CN101370107B Image display device and method
10/18/2011	US8041059 Electrostatic transducer, ultrasonic speaker, driving circuit of capacitive load, method of setting circuit constant, display device, and directional sound system
10/18/2011	US8041056 Voltage supply circuit and microphone unit comprising the same
10/18/2011	US8041054 Systems and methods for selectively switching between multiple microphones
10/18/2011	US8041043 Processing microphone generated signals to generate surround sound
10/18/2011	CA2387125C Vehicle accessory microphone
10/13/2011	US20110249830 Microphone unit
10/13/2011	US20110249828 Protecting secret data entry from infrared and audio eavesdropping
10/12/2011	EP2375789A2 Audio processing apparatus
10/12/2011	EP2375778A2 Method and system for nonlinear acoustic echo cancellation in hands-free telecommunication devices
10/12/2011	EP2375777A2 Sound field control apparatus and method for controlling the sound field
10/12/2011	EP2375776A1 Speaker apparatus
10/12/2011	EP2375774A2 Speaker device
10/12/2011	EP2373967A1 Methods and apparatus for suppressing ambient noise using multiple audio signals
10/12/2011	EP2308044B1 Audio processing
10/12/2011	EP2118986B1 Apparatus for conserving battery power
10/12/2011	EP1720374B1 Mobile body with superdirectivity speaker
10/12/2011	CN202009485U Intelligent amplifying circuit for multimedia sound box
10/12/2011	CN202009427U Noise cancellation system
10/12/2011	CN1929350B Digital mixer
10/12/2011	CN102215439A Sound reception system and sound reception method thereof
10/12/2011	CN101454827B Voice state data generating device, voice state visualizing device, voice state data editing device, voice data reproducing device, and voice communication system
10/12/2011	CN101222785B Small array microphone apparatus and beam forming method thereof
10/12/2011	CN101217828B A noise suppression device and method
10/11/2011	US8036401 Calibrated microelectromechanical microphone
10/11/2011	US8036397 Method for estimating the position of a sound source for online calibration of auditory cue to location transformations
10/10/2011	DE202011051128U1 Kompakter frequenzweichenfreier Koaxiallautsprecher Compact soft frequency coaxial driver free
10/06/2011	WO2011121955A1 Audio device
10/06/2011	US20110243350 Low noise electret microphone
10/06/2011	US20110243348 Pipe calibration system for omnidirectional microphones
10/06/2011	US20110243347 Pipe calibration device for calibration of omnidirectional microphones
10/06/2011	DE102010034237A1 Microphone system for generating microelectromechanical system microphone with respect to acoustic sources within motor car, has CPU coupled with network, where microphone device or CPU includes synchronizer for synchronization of generator
10/05/2011	EP2373054A1 Playback into a mobile target sound area using virtual loudspeakers
10/05/2011	EP2372921A1 Interactive sound reproducing
10/05/2011	EP2370971A1 An audio equipment and a signal processing method thereof
10/05/2011	CN202004963U Frequency modulation wireless microphone manufactured by muPC1651 integrated circuit
10/05/2011	CN202004950U Numerical control sound column based three-dimensional sound system
10/05/2011	CN202004949U Audio acquisition processing circuit for on-vehicle talkback system
10/05/2011	CN202004948U Communication device with microphone
10/05/2011	CN202004947U Player
10/05/2011	CN202004849U Bidirectional active noise reduction device used for cellphone
10/05/2011	CN1968546B Electrostatic transducer, driving circuit of capacitive load, method for setting circuit constant
10/05/2011	CN101662265B Volume drive-by-wire device and method thereof
10/05/2011	CN101159991B Audio equipment
10/04/2011	US8031882 Method and apparatus to reduce the effect of flux modulation in speakers
10/04/2011	US8031881 Method and apparatus for microphone matching for wearable directional hearing device using wearer's own voice
10/04/2011	US8031880 Vehicle audio system surround modes
10/04/2011	US8031876 Audio system
09/2011
09/29/2011	WO2011119401A2 Techniques for localized perceptual audio
09/29/2011	WO2011118595A1 Headphones
09/29/2011	WO2011117028A1 Method and arrangement for audio signal processing
09/29/2011	WO2011116723A2 Control method and device for audio output
09/29/2011	US20110235822 Apparatus and method for reducing rear noise
09/29/2011	US20110235821 Variable directional microphone
09/29/2011	US20110235817 Earphone, electronic system and power-saving method
09/28/2011	EP2369858A2 Dynamic range compression using digital frequency warping
09/28/2011	EP2369853A2 Apparatus and method for reducing noise input from a rear direction
09/28/2011	EP2369852A1 Audio power management system
09/28/2011	EP2368373A1 System and method for dynamic bass frequency control
09/28/2011	EP2368243A1 Systems and methods for improving the intelligibility of speech in a noisy environment
09/28/2011	EP1430748B1 Method and apparatus for determining a nonlinear response function for a loudspeaker
09/28/2011	CN201995116U 一种声卡控制电路 One kind of sound control circuit
09/28/2011	CN201995115U 一种车内降噪系统 One kind of vehicle noise reduction system
09/28/2011	CN201994915U 一种低成本可编程语音输出电路 A low-cost programmable voice output circuit
09/28/2011	CN1953618B Speaker driving apparatus
09/28/2011	CN1701520B Audio system with balance setting and method for controlling balance setting
09/28/2011	CN102204276A Sound emission and collection device, and sound emission and collection method
09/28/2011	CN102202252A Intelligent management system of active loudspeakers
09/28/2011	CN101322183B Signal distortion elimination apparatus and method
09/27/2011	USRE42737 Voice-to-remaining audio (VRA) interactive hearing aid and auxiliary equipment
09/27/2011	US8027489 Multi-voltage biasing system with over-voltage protection
09/27/2011	US8027488 Parametric audio system
09/22/2011	WO2011116002A1 Method and apparatus for automatically reducing a volume level of an audio signal provided to a user
09/22/2011	WO2011115807A1 Switchable wired-wireless electromagnetic signal communication
09/22/2011	WO2011114300A1 Control of a microphone
09/22/2011	WO2011114252A1 Speaker system and method of operation therefor
09/22/2011	US20110228957 Omnidirectional button-style microphone
09/22/2011	US20110228954 Electret Microphone Circuit
09/22/2011	DE102010011729A1 Hörvorrichtung und Verfahren zum Einstellen derselben für einen rückkopplungsfreien Betrieb Hearing apparatus and method for adjusting the same feedback-free for operation
09/22/2011	DE102009004300B4 Gehörschutzvorrichtung Hearing protection device
09/22/2011	CA2792336A1 Intuitive computing methods and systems
09/21/2011	EP2367366A1 Control of a microphone
09/21/2011	EP2367343A1 Audio mixing
09/21/2011	EP1667488B1 Acoustic characteristic correction system
09/21/2011	CN201986129U 一种开关爆破音抑制电路 A switch plosive suppression circuit
09/21/2011	CN201986128U 语音问候装置 Voice greetings device
09/21/2011	CN201986120U 一种新型便携式抗干扰耳塞 A new portable anti earplugs
09/21/2011	CN1742514B Audio output level setting method and device
09/21/2011	CN102197660A Acoustic oscillator and image generation device
09/21/2011	CN102197422A Audio source proximity estimation using sensor array for noise reduction
09/21/2011	CN102196347A Packaged device with acoustic transducer and amplifier

1 ... 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 ... 182