Patents for H04R 3 - Circuits for transducers (18,190)
03/2006
03/30/2006US20060066409 Integrated direct drive inductor means enabled headphone amplifier
03/30/2006DE102005036766A1 Fahrzeug-Audiosystem und Verfahren in Kombination mit MP3-Abspielgerät Vehicle audio system and method in combination with mp3 player
03/29/2006EP1641157A2 Audio/visual content providing system and audio/visual content providing method
03/29/2006EP1640972A1 System and method for separation of a users voice from ambient sound
03/29/2006EP1640971A1 Multi-channel adaptive speech signal processing with noise reduction
03/29/2006EP1639859A1 Device and method for locating a room area
03/29/2006EP1638810A2 Rearview mirror assemblies incorporating hands-free telephone components
03/29/2006CN1754404A Audio information support system
03/29/2006CN1754403A Sound beam loudspeaker system
03/29/2006CN1753576A Electrostatic ultrasonic transducer and ultrasonic speaker
03/28/2006US7020294 Method for active noise cancellation using independent component analysis
03/28/2006US7020293 Noise reduction method
03/28/2006US7020291 Noise reduction method with self-controlling interference frequency
03/28/2006US7020290 Method and apparatus for picking up sound
03/28/2006US7020289 Remote control interface for replacement vehicle stereos
03/28/2006US7019955 MEMS digital-to-acoustic transducer with error cancellation
03/28/2006US7019633 Audio signal sound diffusion system
03/23/2006WO2006031304A2 Single supply direct drive amplifier
03/23/2006WO2006030198A1 Frame array
03/23/2006US20060062406 Voltage supply circuit and microphone unit comprising the same
03/23/2006US20060062403 Substrate crack inspection apparatus and substrate crack inspecting method
03/22/2006EP1637007A2 A method and system for self-compensating for microphone non-uniformities
03/22/2006CN1751537A Electronic driving circuit for directing an audio signal selectively to one of two speakers
03/22/2006CN1751536A Audio speaker crossover having two or more filter housings
03/22/2006CN1750716A Supersonic transducer,supersonic speaker,acoustic system and method for control supersonic transducer
03/22/2006CN1750573A Speech signal processing with combined noise reduction and echo compensation
03/22/2006CN1750420A Detecting control circuit for two-wire multiple signal transmission speaker in public broadcast system
03/21/2006US7016508 Audio apparatus
03/16/2006US20060056644 Audio feedback processing system
03/16/2006DE102004044281A1 Mikrofonsystem Microphone System
03/15/2006CN2765424Y Signal transmission device
03/15/2006CA2481629A1 Method and system for active noise cancellation
03/14/2006US7013281 Sound generator circuit pre-filter system and method
03/14/2006US7013012 Method for processing sound effects in a notebook computer
03/09/2006WO2006026045A2 Frequency shifter for use in adaptive feedback cancellers for hearing aids
03/09/2006WO2006025514A1 Audio/visual data communication system, audio/visual data transmitting apparatus, and audio/visual data reproducing apparatus
03/09/2006WO2006025288A1 Electronic device and sound level control method
03/09/2006WO2006025256A1 Oscillation/echo preventing circuit and microphone/speaker
03/09/2006US20060050915 Loudspeaker system with extended output and field cancellation
03/09/2006US20060050897 Audio signal processing method and apparatus device
03/09/2006US20060050896 Method and apparatus to compensate a phase of a subwoofer channel signal
03/09/2006US20060049889 Digital pulse-width-modulation generator
03/09/2006DE102005019677A1 Verbesserungen für oder in Bezug auf eine Signalverarbeitung Improvements to or in relation to a signal processing
03/08/2006EP1633121A1 Speech signal processing with combined adaptive noise reduction and adaptive echo compensation
03/08/2006EP1632104A2 System and method for delivering audio-visual content along a customer waiting line
03/07/2006US7010514 Blind signal separation system and method, blind signal separation program and recording medium thereof
03/07/2006US7010134 Hearing aid, a method of controlling a hearing aid, and a noise reduction system for a hearing aid
03/07/2006US7010131 Quasi-differential power amplifier and method
03/07/2006US7010129 Method and device for operating voice-controlled systems in motor vehicles
03/07/2006US7009942 Connection setting apparatus
03/03/2006CA2518134A1 Speech signal processing with combined noise reduction and echo compensation
03/02/2006WO2006022380A1 Audio reproducing system
03/02/2006WO2006022379A1 Array speaker system
03/02/2006US20060045292 Mixer controller
03/02/2006US20060045289 Sound collection system
03/02/2006US20060045285 Headphones
03/02/2006DE10103464B4 Fahrzeug-Audiosystem Vehicle audio system
03/01/2006EP1631119A1 Array speaker system
03/01/2006EP1631118A1 Array speaker system
03/01/2006EP1631114A1 Array speaker system
03/01/2006EP1630989A2 Audio mixer controller
03/01/2006EP1629691A1 Oscillation suppression
03/01/2006CN1742514A Audio output level setting method and device
03/01/2006CN1741687A Mixer controller
03/01/2006CN1741686A Voice collecting device and echo cancellation processing method
03/01/2006CN1741685A Detection and control of diaphragm collapse in condenser microphones
03/01/2006CN1740814A Ultrasonic sensor
02/2006
02/28/2006US7006640 Speaker
02/28/2006US7006639 Active noise-attenuating duct element
02/28/2006US7006624 Loudspeaker volume range control
02/28/2006US7004031 Ultrasonic sensor
02/23/2006WO2006020185A2 Method for riaa correction of audio signal with use of transformer and capacitor
02/23/2006WO2006020084A2 Parametric audio system for operation in a saturated air medium
02/23/2006WO2006019122A1 Wireless microphone system, audio transmitting/reproducing method, wireless microphone transmitter, audio transmitting method and program, receiver, and audio receiving/reproducing method and program
02/23/2006WO2006018808A1 Speed- and user-dependent timbre and dynamic range control method, apparatus and system for automotive audio reproduction systems
02/23/2006US20060041926 Voice control of multimedia content
02/23/2006DE102005036538A1 Vorrichtung und Verfahren zur Ansteuerung eines Lautsprechers Apparatus and method for controlling a speaker
02/23/2006DE102004039189A1 Power distribution system e.g. for electrical supply of rail-mounted aircraft fittings, has locking bolt of seat rail forming clamping piece for fixture on seat rail
02/22/2006CN2760888Y Nasal bone conduction wireless communication transmitting device
02/22/2006CN1738488A Message device with active noise eliminating function
02/22/2006CN1738285A Error indication message processing method
02/21/2006US7003468 Method, apparatus, and program for envelope generation, audio compression, and audio expansion
02/21/2006US7003123 Volume regulating and monitoring system
02/17/2006CA2787775A1 Sound processing system for configuration of audio signals in a vehicle
02/17/2006CA2783623A1 Sound processing system for configuration of audio signals in a vehicle
02/16/2006US20060034479 Speaker device
02/16/2006US20060034472 Integrated audio codec with silicon audio transducer
02/16/2006US20060034469 Sound apparatus and teleconference system
02/16/2006US20060034466 Speech support system for a vehicle
02/16/2006US20060034464 Sound reproduction device
02/16/2006US20060034355 Echo processing deives for single-channel or multichannel communication systems
02/16/2006US20060032357 Calibrating a first and a second microphone
02/16/2006DE102004034028A1 Einrichtung zur Speicherung von elektrischer Energie Means for storing electric energy
02/16/2006DE102004033866A1 Konferenz-Endgerät mit Echoreduktion für ein Sprachkonferenzsystem Conference terminal with echo reduction for a voice conference system
02/15/2006EP1625740A1 Microphone circuit having adjustable directivity pattern for reducing loudspeaker feedback and method of operating the same
02/15/2006EP1236376B1 Noise suppression system with dual microphone echo cancellation
02/15/2006CN2759093Y Multifunction wireless earphone with wireless log-in network chat
02/15/2006CN2759091Y Earphon jack circuit of audio-frequency power amplification apparatus using BTL output mode
02/15/2006CN2759090Y Loudspeaker box device
02/15/2006CN1736039A Echo suppression device