| Patents for H04R 5 - Stereophonic arrangements (11,598) |
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| 03/04/2004 | DE20317963U1 Headset for voice communication, has swan-neck microphone attached to loudspeaker part connected to ear via made-to-measure otoplastic material |
| 03/04/2004 | DE10237623A1 Lautsprecheranordnung Speaker assembly |
| 03/04/2004 | CA2494454A1 Audio channel spatial translation |
| 03/03/2004 | EP1395081A1 Vehicle-mounted stereophonic sound field reproducer |
| 03/02/2004 | US6700981 Dual input headphone apparatus |
| 02/26/2004 | US20040037442 Synchronised binaural hearing system |
| 02/26/2004 | US20040037426 Apparatus for converting to six-channel outputs from two-channel |
| 02/25/2004 | EP1391136A2 Matching an acoustic driver to an acoustic load in an acoustic resonant system |
| 02/25/2004 | CN2604841Y Headphone with microphone |
| 02/25/2004 | CN1477903A Multichannel audio-frequecy system and electronic equipment |
| 02/25/2004 | CN1477731A connection parts for electrical cable |
| 02/24/2004 | US6697495 Portable computer speaker assembly |
| 02/24/2004 | US6695477 Audio signal reproducing apparatus |
| 02/19/2004 | WO2004016039A1 An orientation apparatus adjusting the loudspeaker's sound effect |
| 02/19/2004 | US20040032965 Headphone device |
| 02/19/2004 | US20040032964 Sound-surrounding headphone |
| 02/19/2004 | US20040031891 Mounting bracket system |
| 02/19/2004 | DE20319337U1 Active loudspeaker system has loudspeakers driven by stereo amplifier with switched radio and electronic unit inputs |
| 02/19/2004 | DE19960014B4 Vorrichtung zur Bestimmung und Charakterisierung von durch Zerkleinern von Lebensmitteln erzeugten Geräuschen A device for determining and characterizing generated by chopping up food noises |
| 02/18/2004 | CN1476275A Multisound path three dimensional ear phone |
| 02/18/2004 | CN1139300C Method and system for processing audio surround signal |
| 02/17/2004 | US6694038 Acoustic device |
| 02/17/2004 | US6694036 Speaker mounting structure |
| 02/13/2004 | CA2395480A1 Beat beanie |
| 02/12/2004 | WO2004013977A2 Recreational bone conduction audio device, system |
| 02/12/2004 | WO2003094571A3 Electro-dynamic planar loudspeakers |
| 02/12/2004 | US20040029530 Waterproof electroacoustic transducer and portable electronic device provided with the same |
| 02/12/2004 | US20040028245 Method for reproducing audio signal from at least two different sources |
| 02/12/2004 | US20040028235 Audio control pattern apparatus |
| 02/12/2004 | US20040026585 Electro-dynamic loudspeaker mounting system |
| 02/12/2004 | CA2491874A1 Recreational bone conduction audio device, system |
| 02/11/2004 | CN1138445C Sound device for equipment |
| 02/11/2004 | CN1138444C Loudspeaker support |
| 02/11/2004 | CN1138443C Speaker apparatus |
| 02/10/2004 | US6690808 Personal earphone assembly for mounting upon eyeglasses |
| 02/05/2004 | WO2004012477A2 Wireless interactive headset |
| 02/05/2004 | WO2003017716A3 Speaker equalization tool |
| 02/05/2004 | US20040023697 Sound reproducing system and method for portable terminal device |
| 02/05/2004 | US20040022409 Film attaching system |
| 02/05/2004 | US20040022408 Frame structure |
| 02/05/2004 | US20040022407 Film tensioning system |
| 02/05/2004 | US20040022406 Magnet arrangement for loudspeaker |
| 02/05/2004 | US20040022405 Thin enclosure electroacoustical transducing |
| 02/05/2004 | US20040021619 Head-mounted audio/video playback system |
| 02/05/2004 | US20040021351 Seatback audio controller |
| 02/05/2004 | DE10233444A1 Kopfhörer Headphone |
| 02/05/2004 | CA2494661A1 Wireless interactive headset |
| 02/04/2004 | EP1386415A1 Parametric virtual speaker and surround-sound system |
| 02/04/2004 | CN2602571Y 耳机 Headphone |
| 02/04/2004 | CN1473450A Headphone |
| 02/04/2004 | CN1472986A 3D8 stereo amplifying systems |
| 02/04/2004 | CN1137603C Play-back two-channel system for providing holophonic reproduction of sounds |
| 02/03/2004 | US6687378 Vehicle-mounted acoustic system |
| 02/03/2004 | CA2273858C Power supply for microphone |
| 01/29/2004 | WO2004010729A2 Portable audio playback device with bass enhancement |
| 01/29/2004 | US20040018770 Plug for speaker cables, and speaker terminal and speaker terminal system provided with them |
| 01/28/2004 | EP1385353A2 Plug for speaker cables, speaker terminal and speaker terminal arrangement comprising the same |
| 01/28/2004 | CN1471339A Method and apparatus of sound digitalized ransmission for acoustic front and rear stages |
| 01/28/2004 | CN1471195A Horn connection line plug and horn terminal and corresponding horn connector system |
| 01/28/2004 | CN1136760C Method and appartus for error masking in multi-channel audio signals |
| 01/28/2004 | CN1136757C Speaker apparatus and television set |
| 01/28/2004 | CN1136652C High-fidelity final-stage audio power current amplifier |
| 01/27/2004 | USRE38405 Enhanced concert audio system |
| 01/27/2004 | US6684176 Three dimensional (3-D) object locator system for items or sites using an intuitive sound beacon: system and method of operation |
| 01/22/2004 | US20040015363 Audio watermarking to convey auxiliary information, and media employing same |
| 01/22/2004 | US20040015362 Methods for decoding watermark data from audio, and controlling audio devices in accordance therewith |
| 01/22/2004 | US20040014426 Portable audio playback device with bass enhancement |
| 01/21/2004 | CN1469682A Echo sound effect processor |
| 01/21/2004 | CN1135836C Rear projection type image display device |
| 01/20/2004 | US6681024 Device including a built-in electroacoustic transducer for optimum speech reproduction |
| 01/20/2004 | US6681019 Polarity determining circuit for loudspeakers, an audio circuit having a function of determining polarities of loudspeakers, and an audio circuit having functions of determining polarities of loudspeakers and switching the polarities |
| 01/20/2004 | US6681018 Audio signal processor and audio device |
| 01/15/2004 | WO2004006620A1 Electroacoustic transducer |
| 01/15/2004 | US20040009716 Electrical connectors for electro-dynamic loudspeakers |
| 01/15/2004 | US20040008863 Frequency response enhancements for electro-dynamic loudspeakers |
| 01/15/2004 | US20040008862 Conductors for electro-dynamic loudspeakers |
| 01/15/2004 | US20040008858 Acoustically enhanced electro-dynamic loudspeakers |
| 01/15/2004 | DE20317333U1 Cover for the arm of a headphones set having increased wearer comfort |
| 01/15/2004 | DE20316318U1 Anordnung zur Darbietung von Bild und Ton Arrangement for the performance of image and sound |
| 01/15/2004 | DE10227478A1 Musik-Vibrationskissen Music Shaker |
| 01/13/2004 | US6678380 Audio system |
| 01/13/2004 | US6675932 Speaker housing configured to minimize standing waves and resonate above the frequency range of transducers |
| 01/08/2004 | WO2004004410A1 Loudspeaker edge |
| 01/08/2004 | WO2004004409A1 Mobile communication terminal |
| 01/08/2004 | WO2004002383A1 Noise cancellation system and headphone therefor |
| 01/08/2004 | US20040005071 Ear warming article including electronic device and easily interchangeable advertising areas |
| 01/07/2004 | EP1377961A2 Active noise cancelling headset and devices with selective noise suppression |
| 01/07/2004 | CN1134207C Pseudo-stereophony device |
| 01/07/2004 | CN1134011C Technology for manufacturing audio-video products with space sound |
| 01/06/2004 | US6675146 Audio steganography |
| 01/06/2004 | US6672650 Plastic panel with integrally molded speaker grille |
| 01/02/2004 | EP1377114A2 Multi-channel reproducing apparatus and multi-channel reproducing loudspeaker apparatus |
| 01/02/2004 | EP1374634A1 Headset with adjustable microphone boom |
| 01/02/2004 | EP1374633A2 A method and system for simulating a 3d sound environment |
| 01/02/2004 | EP1373050A2 Audio system for canopies used with strollers or rockers |
| 12/31/2003 | WO2004002192A1 System and method for automatic room acoustic correction |
| 12/31/2003 | WO2004001552A2 Identification system and method for recognizing any one of a number of different types of devices |
| 12/31/2003 | WO2003071827A3 Compact surround-sound system |
| 12/31/2003 | CN2596505Y Integrated multichannel audio-video signal transmission device |
| 12/31/2003 | CN1465206A Audio apparatus |