Patents for H04R 3 - Circuits for transducers (18,190)
10/2007
10/03/2007CN101047533A Method and device for connecting multi-conference
10/03/2007CN101047367A Filtering apparatus
10/02/2007US7277765 Interactive sound reproducing
10/02/2007US7277555 Electroacoustic transducer with built in transducer circuit
10/02/2007US7277554 Dynamic range compression using digital frequency warping
10/02/2007US7277551 Sound reproducing apparatus and sound reproducing method
09/2007
09/27/2007WO2007108929A2 Two-wire microphone circuit
09/27/2007US20070223885 Playback apparatus
09/27/2007US20070223876 Recording Medium, Reproduction Device, Program, Reproduction Method, and Integrated Circuit
09/27/2007US20070223771 Simulated Wave Massage
09/27/2007US20070223763 Digital Loudspeaker
09/27/2007US20070223739 Speaker system for mobile device
09/27/2007US20070223734 Speaker
09/27/2007US20070223732 Methods and apparatuses for adjusting a visual image based on an audio signal
09/27/2007US20070223731 Sound source separating device, method, and program
09/27/2007US20070223730 Normalization and calibration of microphones in sound-intensity probes
09/27/2007US20070223716 Gain adjusting method and a gain adjusting device
09/27/2007US20070223713 Creating digital signal processing (DSP) filters to improve loudspeaker transient response
09/27/2007US20070223712 Composite damper for speaker
09/27/2007US20070222902 Plasma Display Device
09/27/2007DE10333665B4 Bestattungsstätte Burial site
09/26/2007EP1838131A1 Sound receiver
09/26/2007EP1274348B1 Systems for reducing secondary hot spots in a phased array focused ultrasound system
09/26/2007EP1230739A4 Vehicle accessory microphone
09/26/2007CN200953651Y Amusing machine specialized horn
09/26/2007CN200953650Y Vehicle audio voice frequency plug
09/26/2007CN101044786A Loudspeaker feedback
09/26/2007CN101044785A Loudspeaker feedback
09/26/2007CN101043764A Sound box capable of adjusting sound effect automatically as environment change and adjusting method thereof
09/26/2007CN101043407A Method and system for enquiring data of sensor network and sensor node
09/26/2007CN101043369A Service gradation based loss distribution method
09/25/2007US7274794 Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in single wave sound environment
09/25/2007US7274793 Excursion limiter
09/25/2007CA2348894C Binaural signal processing techniques
09/20/2007WO2007106872A2 Wide-band equalization system
09/20/2007WO2007106399A2 Noise-reducing directional microphone array
09/20/2007WO2007106165A2 Enhancing perceptions of the sensory content of audio and audio-visual media
09/20/2007US20070217639 Method of obtaining settings of a hearing instrument, and a hearing instrument
09/20/2007US20070217632 Sound-source signal processing module
09/20/2007US20070217631 Microphone connector module
09/20/2007US20070217629 System for automatic reception enhancement of hearing assistance devices
09/20/2007US20070217628 Two-wire microphone circuit
09/20/2007US20070217625 Loudspeaker system having sensorless bass compensation
09/20/2007US20070217616 Guiding device and method of controlling the same
09/20/2007DE102006012601A1 Alternating current signal amplifying circuit for controlling loudspeakers, has two clock amplifier circuits, which respectively exhibit NPN-transistors and inductors, where inductors are coupled with each other
09/20/2007DE102006009045A1 Loudspeaker arrangement for train e.g. double deck train, has two amplifiers or transducer remotely arranged in coaches, where appropriate loudspeaker is attached to each amplifier and transducer over appropriate supply lines
09/19/2007EP1579728B1 Microphone system with directional response
09/19/2007EP1317871A4 Improved directional microphone system
09/19/2007EP1305975A4 Adaptive microphone array system with preserving binaural cues
09/19/2007CN200950657Y Mike audio amplifier capable of eliminating echo automatically
09/19/2007CN101040564A 音频信号处理装置及音频信号处理方法 The audio signal processing apparatus and audio signal processing method
09/19/2007CN101040434A Audio amplifier and speaker incorporating audio amplifier
09/19/2007CN101039529A Stereo/monaural switching circuit and integrated circuit having the same
09/19/2007CN101038744A Audio signal noise reduction device and method
09/19/2007CN100338969C Microphone-loudspeaker device
09/18/2007US7272073 Method and device for generating information relating to the relative position of a set of at least three acoustic transducers
09/13/2007WO2007103937A2 Positionally sequenced loudspeaker system
09/13/2007WO2007101477A1 Hearing aid with adaptive feedback suppression
09/13/2007WO2007101462A1 Loudspeaker arrangement in a motor vehicle, and a method for driving the at least one loudspeaker
09/13/2007WO2006076690A3 Method and apparatus for ambient sound therapy user interface and control system
09/13/2007US20070211910 Sound Volume Control Circuit, Semiconductor Integrated Circuit And Sound Source Device
09/13/2007US20070211904 Stereophonic Sound Reproducing System and Stereophonic Sound Reproducing Apparatus
09/13/2007US20070211579 System and method for outputting data
09/13/2007US20070211574 Parametric Loudspeaker System And Method For Enabling Isolated Listening To Audio Material
09/13/2007CA2643716A1 Hearing aid with adaptive feedback suppression
09/12/2007EP1833276A2 Television apparatus
09/12/2007EP1833232A2 System and method for outputting data
09/12/2007CN200947620Y Handset with built-in earphone
09/12/2007CN200947588Y Playing headset capable of automatically changing sound volume as noise
09/12/2007CN101035339A System and method for outputting data
09/12/2007CN101035226A Television apparatus
09/12/2007CN101035020A Communication adaptation layer system and method for obtaining the network element information
09/12/2007CN101034875A Class d audio amplifier with PWM and feedback
09/11/2007US7269270 Standing wave reducing
09/11/2007US7269268 SMD type biased condenser microphone
09/11/2007US7269263 Method of broadband constant directivity beamforming for non linear and non axi-symmetric sensor arrays embedded in an obstacle
09/11/2007US7268548 System and method for reducing auditory perception of noise associated with a medical imaging process
09/07/2007WO2007100706A2 Portable media delivery system
09/07/2007WO2007100137A1 Reverberation removal device, reverberation removal method, reverberation removal program, and recording medium
09/07/2007WO2007099908A1 Wearable terminal, mobile imaging sound collecting device, and device, method, and program for implementing them
09/07/2007WO2007098916A1 Loudspeaker arrangement in a motor vehicle, and a method for actuating the at least one loudspeaker
09/06/2007US20070209053 Audiovisual reproduction system
09/06/2007US20070206820 Volume Control Method, Volume Controller, Volume Control Program, Electronic Apparatus
09/05/2007EP1829422A2 Speaker diagnostics based upon driving-point impedance
09/05/2007EP1829417A1 Method and devices for improving the quality of signal transmission and reproduction
09/05/2007EP1044583B2 Means for bass enhancement in an audio system
09/05/2007CN101031165A Enhanced loundspeaker interface and superstrong loundspeaker
09/05/2007CN101030912A Fast ring network method against attack based on RRPP, apparatus and system
09/04/2007US7266501 Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process
09/04/2007US7266043 Method for directional location and locating system
08/2007
08/30/2007WO2007097157A1 Acoustic signal transmission system, modulation device, demodulation device, and acoustic signal transmission method
08/30/2007US20070204228 System and method of controlling a graphical user interface at a wireless device
08/30/2007US20070201706 Acoustic signal generating apparatus
08/30/2007DE202006006766U1 Kombination physikalisch unterschiedlicher Schallwandler Combination of physically different transducer
08/30/2007DE102006024713B3 Hearing aid device, has resonant circuit provided outside housing, where current flowing through transceiver coil is controlled by detector device for controlling hearing aid device
08/30/2007DE102006006862A1 Schaltungsanordnung zum Betrieb eines Lautsprechers Circuit arrangement for operating a loudspeaker
08/29/2007EP1825711A2 Device and method for attenuating an anti-resonant circuit
08/29/2007EP1380186A4 Vehicle accessory microphone
08/29/2007CN101026905A Signal transmission device and method and control device and method
08/29/2007CN101026897A Microphone apparatus with increased directivity