Patents
Sitemap › H04 - Electric communication technique › H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; Deaf-aid sets; Public address systems › H04R 5 - Stereophonic arrangements
Patents for H04R 5 - Stereophonic arrangements (11,598)
09/2005
09/22/2005WO2005081576B1 Loudspeaker surround system
09/22/2005US20050208783 Audio plug
09/22/2005US20050207698 Signal transmission system
09/22/2005US20050207607 Multiple channel earphone
09/22/2005US20050207606 [earphone structure with a composite sound field]
09/22/2005US20050207593 Modular loudspeaker
09/22/2005US20050205350 [speaker module frame, speaker module therewith, and electronic device with speaker module]
09/22/2005US20050205348 Acoustic waveguiding
09/22/2005DE10342532B4 Hinterkopfbügel-Kopfhörer Behind headband headphones
09/22/2005DE102005009070A1 Process for improving sound reproduction via loudspeaker in noisy areas, e.g. in a motor vehicle passenger compartment, comprises modifying the amplitude/frequency response of an audio signal as a function of the disturbing noise
09/22/2005DE102004001442A1 Kopfhörer Headphone
09/21/2005EP1577984A1 Audio plug
09/21/2005EP1576847A1 Audio playback system and method for playing back an audio signal
09/21/2005CN2728149Y Radio FM earphone with read repeat function
09/21/2005CN2728145Y Bluetooth communication earphone having detachable battery module
09/21/2005CN1672464A Audio channel spatial translation
09/21/2005CN1672460A Embedded stereo microphone assembly for mobile phone
09/21/2005CN1672325A Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
09/21/2005CN1671246A Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein
09/21/2005CN1670819A Acoustic waveguiding
09/20/2005US6947564 Stereophonic spatial expansion circuit with tonal compensation and active matrixing
09/20/2005CA2284341C Headphone device
09/15/2005WO2005086527A1 An improved audio arrangement
09/15/2005WO2004064369A3 Audio visual system and apparatus
09/15/2005US20050202783 Control module co-constructed with car audio apparatus
09/15/2005US20050201585 Wireless interactive headset
09/15/2005US20050201581 Portable speaker system
09/15/2005US20050201576 Mars suit external audion system
09/14/2005CN2726257Y Multifunctional switch type double track stereophonic earphone
09/14/2005CN2726256Y Rotary integrated loudspeaker box
09/14/2005CN1669240A Portable audio playback device with bass enhancement
09/14/2005CN1219415C 5.1 path surround sound earphone repeat signal processing method
09/14/2005CN1219414C Two-loudspeaker virtual 5.1 path surround sound signal processing method
09/13/2005US6944474 Sound enhancement for mobile phones and other products producing personalized audio for users
09/13/2005US6944309 Headphone system
09/13/2005US6942060 Portable information terminal device
09/09/2005WO2005084072A1 Audio headphone
09/09/2005WO2005083550A2 Display device having sound-generating means
09/09/2005CA2460302A1 All-in-one headset
09/08/2005US20050195990 Method and apparatus for separating sound-source signal and method and device for detecting pitch
09/08/2005US20050195988 System and method for beamforming using a microphone array
09/08/2005DE202005009405U1 Headphones for receiving audio signals have ear hoops with two independent earpieces connected by a cable, a source of audio signals and control knobs
09/08/2005DE202005005942U1 Portable wireless loudspeaker box for operation with an infrared sensor has a main body with a retaining area for positioning elements, a battery compartment, a sensor and circuit boards
09/07/2005EP1571875A2 A system and method for beamforming using a microphone array
09/07/2005EP1570705A1 Stereo signal communication using bluetooth transceivers in earpieces
09/07/2005EP1570704A1 Multispeaker sound imaging system
09/07/2005EP1570703A2 Personalized surround sound headphone system
09/07/2005EP1569732A2 A consumer electronics device
09/07/2005EP0906712B1 Center point stereo reproduction system for musical instruments
09/07/2005CN2724341Y 耳机 Headphone
09/07/2005CN2724339Y Sound field changeable earphone
09/07/2005CN1665347A An acoustic coupling composite loudspeaker
09/07/2005CN1665345A Earphone part
09/07/2005CN1665147A FM wireless transmission outdoor sound equipment system
09/07/2005CN1664610A System and method for beamforming using a microphone array
09/06/2005US6941246 Method for three-dimensional position calibration of audio sensors and actuators on a distributed computing platform
09/06/2005US6940984 Hands-free megaphone
09/02/2005CA2499033A1 A system and method for beamforming using a microphone array
09/01/2005WO2005081579A1 Information terminal device
09/01/2005WO2005081576A1 Loudspeaker surround system
09/01/2005WO2005081520A1 Loudspeaker assembly
09/01/2005US20050192687 Apparatus and method for controlling operation of audio low sound output means
09/01/2005US20050190944 Unidirectional condenser microphone unit
09/01/2005US20050190936 Sound pickup apparatus, sound pickup method, and recording medium
09/01/2005US20050190935 Car audio equipment
09/01/2005US20050190932 Streophonic apparatus having multiple switching function and an apparatus for controlling sound signal
09/01/2005US20050190927 Speaker systems and methods having amplitude and frequency response compensation
09/01/2005US20050190926 Wave reduction sampling method of signal output
09/01/2005US20050190925 Sound reproduction apparatus and sound reproduction method
09/01/2005US20050188608 Multistep, multizone dehydration of coal by charging air in first fluidized bed reactor, heating to dry, drying semidried coal in second fluidized bed reactor by raising temperature higher than first reactor
09/01/2005DE102004006724A1 Audio and video signal reproduction apparatus, has loudspeakers and image screen, and separate light source with variable illumination area and color
09/01/2005CA2556261A1 Audio player assembly comprising an mp3 player
08/2005
08/31/2005EP1569370A2 Multiple tuners in a single radio receiver
08/31/2005EP1569088A2 Apparatus and method for controlling operation of low frequency sound output means
08/31/2005CN1663322A Electro-dynamic planar loudspeakers
08/31/2005CN1663321A Sound reproduction employing unity summation aperture loudspeakers
08/31/2005CN1662100A Bass boost circuit and bass boost processing program
08/30/2005US6937739 Loudspeaker set with elastic adapter
08/30/2005US6937737 Multi-channel audio surround sound from front located loudspeakers
08/25/2005WO2005079114A1 Acoustic reproduction device and loudspeaker position identification method
08/25/2005WO2005079113A2 Signal phase detection system
08/25/2005WO2005078683A1 A sound distributor and a system for distributing sound
08/25/2005US20050187645 Folding electronic device
08/25/2005US20050185810 Audio processing apparatus
08/25/2005US20050185802 Bass boost circuit and bass boost processing program
08/25/2005US20050185801 System and method for mounting of audio-visual components
08/25/2005DE19510556B4 Rundfunkempfänger Broadcast radio receiver
08/25/2005DE10392880T5 Rauschunterdrückungssystem und Kopfhörer hierfür Noise reduction system and headphones for this
08/25/2005DE10338694B4 Wiedergabeeinrichtung, umfassend wenigstens einen Bildschirm zur Darstellung von Informationen Reproducing means comprising at least one screen for displaying information
08/25/2005CA2556561A1 A sound distributor and a system for distributing sound
08/24/2005EP1566950A1 Folding electronic device with pair of speakers and state dependent allocation of right and left channel
08/24/2005EP1566796A2 Method and apparatus for separating a sound-source signal and method and device for detecting pitch
08/24/2005CN2720750Y Earphone of hanging-one-ear type
08/24/2005CN1658709A Sound reproduction apparatus and sound reproduction method
08/24/2005CN1658629A Folding electronic device
08/24/2005CN1658524A Communication transmission device and method with audio signal playing function
08/24/2005CN1658283A Method and apparatus for separating sound-source signal and method and device for detecting pitch
08/24/2005CN1216511C Processing circuit unit for stereo surrounding acoustic effect
08/23/2005US6934398 Method for switching audio signals and the device of the same
08/23/2005US6934396 Speaker embedded with oral setup tutorial
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