Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 3 - Circuits for transducers
Patents for H04R 3 - Circuits for transducers (18,190)
09/2010
09/02/2010DE102009010872A1 Verfahren und System zum Ausgeben von Ansagen in einer Kabine Method and system for output of announcements in a cabin
09/01/2010EP2224748A1 Audio jack for a portable electronic device
09/01/2010CN201571189U Microphone
09/01/2010CN201571174U Digital sound box
09/01/2010CN201570088U Multifunctional client of bank
09/01/2010CN201569893U Electric control device of game electric alarm clock
09/01/2010CN101822072A Image capturing apparatus
09/01/2010CN101822071A Noise cancel headphone
09/01/2010CN101820571A Speaker system
09/01/2010CN101820566A Information processing apparatus and information processing method
09/01/2010CN101820564A Minitype multichannel audio frequency directional loudspeaker
09/01/2010CN101820563A Speaker protection system
09/01/2010CN101819478A Multifunctional self-sterilizing mouse
08/2010
08/31/2010US7787876 Method and system for mobile call testing using contactless ring detection
08/31/2010US7787642 Low-power high-PSRR current-mode microphone pre-amplifier system and method
08/31/2010US7787641 Sound reproducing system for use with multiple rooms
08/31/2010US7787638 Method for reproducing natural or modified spatial impression in multichannel listening
08/31/2010US7787636 Filtering a microphone signal to remove noise components generated by a disk drive
08/31/2010US7787635 Dip filter frequency characteristic decision method
08/31/2010US7787328 System and method for computing a location of an acoustic source
08/27/2010CA2691308A1 Method and system for controlling a maximum signal level output to headphones coupled to a wireless device
08/26/2010WO2010096272A1 Speech processing with source location estimation using signals from two or more microphones
08/26/2010WO2010095620A1 Sound field creation device
08/26/2010WO2010039193A3 Multi-display handheld device and supporting system
08/26/2010US20100217586 Signal processing system, apparatus and method used in the system, and program thereof
08/26/2010US20100215189 Ceiling microphone assembly
08/26/2010DE102009009490A1 Modifikation von Audiosignalen zur Distribution in einem Raum Modification of audio signals for distribution in a room
08/26/2010CA2694848A1 Audio jack for a portable electronic device
08/25/2010EP2222093A2 An acoustic field correction method and an acoustic field correction device
08/25/2010EP2222091A1 Method for determining a set of filter coefficients for an acoustic echo compensation means
08/25/2010EP2220630A1 Alarm system audio interface tamper and state detection
08/25/2010CN201563223U Infrared ray automatic induction multifunctional directional sounding device
08/25/2010CN201563222U Sound system
08/25/2010CN101816190A Sound emission and collection device
08/25/2010CN101816189A Sound reproduction system comprising a loudspeaker enclosure with ports, and associated processing circuit
08/25/2010CN101815232A Audio device and audio output/input method
08/25/2010CA2655586A1 Compact noise suppression circuit for small speakers
08/24/2010US7783063 Digital linking of multiple microphone systems
08/24/2010US7783062 Automatic audio distortion control method and apparatus
08/24/2010US7783061 Methods and apparatus for the targeted sound detection
08/24/2010US7783060 Deconvolution methods and systems for the mapping of acoustic sources from phased microphone arrays
08/24/2010US7783059 Acoustic device
08/24/2010US7783047 Sound filed reproduction apparatus and sound filed space reproduction system
08/24/2010US7783032 Method and system for processing subband signals using adaptive filters
08/19/2010WO2010093917A2 Digital sound leveling device and method to reduce the risk of noise induced hearing loss
08/19/2010WO2010092674A1 Audio signal mixer
08/19/2010WO2010092197A1 Simultaneous control system for lighting and audio devices
08/19/2010WO2010076412A3 Method and device for estimating source signals from a mixture signal
08/19/2010US20100208934 Speaker device
08/19/2010US20100208920 Electronic device manufactured by molding, method and mold for manufacturing the same, and electronic application using the same
08/19/2010US20100208919 Electret condenser microphone for noise isolation and electrostatic discharge protection
08/19/2010US20100208912 Masking sound generating apparatus, masking system, masking sound generating method, and program
08/19/2010US20100208911 Noise reduction apparatus
08/19/2010DE102009008550A1 Communication and/or entertainment system e.g. media player, for use in airplane, has processing unit executing active noise control based on background noise and adapting control to earphone or headset through selection of used filters
08/18/2010EP2218681A2 Applications of Nano-Enabled Large Area Macroelectronic Substrates Incorporating Nanowires and Nanowire Composites
08/18/2010CN201557246U Respirator voice amplification circuit
08/18/2010CN201557245U Audio output circuit and electronic device adopting same
08/18/2010CN201557244U Signal amplification circuit of guitar loudspeaker box
08/18/2010CN201557243U Low-pass circuit
08/18/2010CN201557242U Tabletop sound
08/18/2010CN201557220U Mine underground explosion-proof and intrinsic safety type sound box
08/18/2010CN201557218U Loudspeaker system and electronic equipment using the same
08/18/2010CN1829392B Howling detection circuit
08/18/2010CN1538784B Audible signal processing device and its method
08/18/2010CN101808265A Adaptive feedback gain correction
08/18/2010CN101808260A Audio dynamic feedback suppression method
08/18/2010CN101808259A Loudspeaker output control method
08/17/2010US7778829 Real time monitoring and control for audio devices
08/17/2010US7778426 Feedback suppression in sound signal processing using frequency translation
08/17/2010US7778425 Method for generating noise references for generalized sidelobe canceling
08/12/2010WO2010091349A2 Wireless multi-user audio system
08/12/2010WO2010090228A1 Sound reproduction device and sound reproduction system
08/12/2010WO2010088960A1 Spectral band substitution to avoid howls and sub-oscillation
08/12/2010WO2010051444A3 Modular input/output headset and method of use
08/12/2010US20100202635 Single supply headphone driver/charge pump combination
08/12/2010US20100202634 Microphone and integrated circuit capible of echo cancellation
08/12/2010US20100202628 Augmented elliptical microphone array
08/12/2010US20100202626 Control device, control method and control program
08/12/2010US20100201807 Microphone mover
08/12/2010DE102009000719A1 Method for damping vibration in diaphragm transducer of ultrasound sensor in electro-acoustic converter for measurement of distance to obstacle, during parking of motor vehicle, involves converting output voltage into damping current
08/11/2010EP2217004A1 Method and system for dynamic range control in an audio processing system
08/11/2010CN201550277U Multifunctional digital portable radio capable of recording, playing, receiving and amplifying voice
08/11/2010CN201550265U Hifi class D acoustics for automobile
08/11/2010CN201550204U Optical display television with amusement function
08/11/2010CN101803402A Sound emission/collection device
08/11/2010CN101803401A Digital speaker driving device
08/11/2010CN101803187A Electronic device
08/11/2010CN101803185A Audio power amplifier
08/11/2010CN101803183A Local broadcasting system
08/11/2010CN101800923A Device and method for inhibition of second resonance mode of vibrating diaphragm
08/11/2010CN101800922A Method and device for automatically regulating talkback volume
08/11/2010CN101800921A Sound signal processing apparatus
08/11/2010CN101800920A Signal processing device, signal processing method and program
08/10/2010US7773761 Method and apparatus to generate an audio beam with high quality
08/05/2010WO2010087147A1 Howling suppressing apparatus, howling suppressing method, program, and integrated circuit
08/05/2010WO2010086240A1 Microphone component and method for operating a component of this type
08/05/2010WO2010086206A1 Component comprising a micromechanical microphone structure and method for operating said microphone component
08/05/2010US20100198656 Electronic digital direct-mail collateral
08/05/2010US20100195862 Transducer with deformable corner
08/05/2010DE112007003683T5 Echounterdrückungssystem, Echounterdrückungsverfahren, Aufzeichnungsmedium, Echounterdrücker, Klangausgabevorrichtung, Audiosystem, Navigationssystem und mobiles Objekt Echo suppression system, echo cancellation method, recording medium, echo canceller, sound output device, audio system, navigation system and mobile object
1 ... 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 ... 182