Patents for H04R 5 - Stereophonic arrangements (11,598)
10/2004
10/28/2004WO2004093492A1 System for the projection of cinematographic works or digitial works with sound
10/28/2004WO2004092700A2 A method and device for determining acoustical transfer impedance
10/28/2004US20040215808 Electronic apparatus with communication device
10/28/2004US20040213428 Headphone
10/28/2004US20040213415 Determining reverberation time
10/28/2004US20040213414 Adaptive high fidelity reproduction system
10/28/2004US20040213412 Stereo sounding method, stereo sounding system, and musical tone generation control system
10/27/2004EP1471771A2 Audio reproduction apparatus and video receiving apparatus
10/27/2004EP1471770A2 Method for generating an approximated partial transfer function
10/27/2004EP1471767A2 Method and system for acoustic shock protection
10/27/2004EP1471766A1 Electronic device with loudspeaker
10/27/2004EP0875126B1 Surround sound processor with improved control voltage generator
10/27/2004CN2652076Y Earphone with isolychn
10/27/2004CN1541497A Speaker device
10/27/2004CN1540981A Electronic device with speakers
10/27/2004CN1173599C Digital electro-acoustic transducer
10/21/2004WO2004091257A1 System comprising sound reproduction means and ear microphones
10/21/2004WO2004091253A1 Sound wave opening and shutting type case of headphone
10/21/2004WO2004091252A1 Back sound reduction type headphone
10/21/2004WO2004091251A1 Electronic apparatus and audio signal outputting method of electronic apparatus
10/21/2004US20040208335 Headphones
10/21/2004US20040207762 Audio interrupt system for an automobile
10/21/2004DE10313331A1 Verfahren zur Bestimmung einer Einfallsrichtung eines Signals einer akustischen Signalquelle und Vorrichtung zur Durchführung des Verfahrens A method for determining an incident direction of a signal of an acoustic signal source, and apparatus for carrying out the method
10/20/2004CN1172253C Portable information terminal unit
10/13/2004EP1466498A1 Audio system based on at least second; order eigenbeams
10/13/2004CN2648748Y Audio amplifier with undistorted sonic wave
10/13/2004CN1171500C Transmitter of infrared transmission system and reproducing apparatus and sound system comprising headphone device
10/12/2004US6804367 Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein
10/07/2004WO2004086810A2 Vocal pitch-training device
10/07/2004WO2004086366A2 Portable entertainment system
10/07/2004US20040198175 Consumer electronics device
10/07/2004US20040197002 Bone conduction headset
10/07/2004US20040197001 Earbag hanging earphones
10/07/2004US20040196992 System and method for detecting the insertion or removal of a hearing instrument from the ear canal
10/07/2004US20040196991 Sound image localizer
10/07/2004US20040196985 Electronic apparatus having a detachable speaker unit
10/07/2004US20040196982 Directional electroacoustical transducing
10/07/2004US20040194610 Vocal pitch-training device
10/06/2004EP1465454A2 System and method for detecting the insertion or removal of a hearing instrument from the ear canal
10/05/2004US6801635 Speaker device
10/05/2004US6801627 Method for localization of an acoustic image out of man's head in hearing a reproduced sound via a headphone
09/2004
09/30/2004WO2004084584A1 A multi-channel speaker system and a connection system thereof
09/30/2004WO2004084177A2 Audible warning for vehicule safety systems
09/30/2004US20040192417 Portable electronic device
09/30/2004US20040190746 Speaker device
09/30/2004US20040190742 Portable information terminal device
09/30/2004US20040190741 Portable entertainment system
09/30/2004US20040190726 Audio output control circuit
09/30/2004US20040190384 Multi-jack detector
09/30/2004CA2424093A1 Method and device for acoustic shock protection
09/29/2004EP1463378A2 Method for determining the direction of incidence of a signal of an acoustic source and device for carrying out the method
09/29/2004EP1463373A1 Earphone detection circuit
09/29/2004CN2645390Y Phase reversal earphone
09/29/2004CN1533215A 4.2 three-dimensional earphone
09/29/2004CN1533125A Protable electronic device
09/23/2004WO2004082329A1 Sound wave guide for headphone and headphone case using of it
09/23/2004WO2004082325A2 Sound and vibration transmission pad and system
09/23/2004WO2004064369A9 Audio visual system and apparatus
09/23/2004US20040184629 Speaker
09/23/2004US20040184628 Speaker apparatus
09/23/2004US20040184624 Audio mixing circuit
09/23/2004US20040184619 Sound control system, sound control device, electronic device, and method for controlling sound
09/23/2004CA2518701A1 Sound and vibration transmission pad and system
09/22/2004EP1460880A2 Loudspeaker array
09/22/2004EP1460879A2 Individual sound system for vehicles
09/22/2004EP1459597A1 Peer-based location determination
09/22/2004EP1459594A1 Method and apparatus for audio input to implantable hearing aids
09/22/2004CN1531836A Supplemental audio contents system with wireless communication for cinema and related methods
09/22/2004CN1168350C Digital electroacoustic transducer
09/21/2004US6795558 Microphone array apparatus
09/21/2004US6794798 Display device and electronic equipment employing piezoelectric speaker
09/16/2004WO2004080112A2 Earphone antenna and radio device with same
09/16/2004US20040178893 Audible warning for vehicle safety systems
09/16/2004DE202004005438U1 Audiovorrichtung mit einziehbaren Ohrstücken Audio device with retractable ear pieces
09/15/2004CN2641965Y Vehicle acaustics with USB interface
09/14/2004US6792324 Device for determining and characterizing noises generated by mastication of food
09/14/2004US6792122 Acoustic device
09/10/2004WO2004077878A1 Modular system of loudspeakers for reproduction of multichannel sound, which compose a furniture, according to the listening room
09/10/2004WO2004054313A3 Personalized surround sound headphone system
09/08/2004EP1455477A2 Electronic apparatus with communication device
09/08/2004EP1183911B1 Virtual multichannel speaker system
09/08/2004CN2640173Y Radio earphone with liquid crystal display
09/08/2004CN2640151Y High low pitch audio loudspeaker box special for TV. set
09/08/2004CN1528104A Electroacoustic conversion of audio signals, especially voice signals
09/08/2004CN1165773C Impedance detection apparatus and method
09/02/2004WO2004075601A1 Sound beam loudspeaker system
09/02/2004US20040170294 Headphone
09/02/2004US20040170288 Vehicle sound synthesizer
09/02/2004US20040170281 Sound recording and reproduction systems
09/02/2004DE202004009063U1 Sound reproduction system for multi-channel transmission uses multiple loudspeaker units in preset positions in a room
09/01/2004EP1453213A2 Communication apparatus with antenna
09/01/2004EP0776593B1 Method and apparatus for spatially enhancing stereo and monophonic signals
09/01/2004CN1526257A Programmable headset, programming apparatus and method
09/01/2004CN1525670A Outdoor intelligent sound unit
09/01/2004CN1525438A Stereo audio encoding method and device, audio stream decoding method and device
08/2004
08/26/2004US20040164073 Cooking apparatus equipped with audio player
08/26/2004DE202004006384U1 Headset with surround-sound effect, has transducers for central, surround sound and mid- to low frequency channels integral with base plate
08/25/2004EP1450105A2 Cooking apparatus equipped with audio player
08/25/2004EP1449405A2 Modular headset for cellphone or mp3 player
08/25/2004CN1523927A Headphone
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