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