Patents for H04R 5 - Stereophonic arrangements (11,598) |
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02/14/2001 | CN2419776Y 四声道耳机 Four-channel headphones |
02/13/2001 | US6188775 Panel-form loudspeakers |
02/13/2001 | US6188771 Personal sound masking system |
02/13/2001 | US6185809 Method of manufacturing a diaphragm for an electroacoustic transducer |
02/07/2001 | EP1075164A2 Headset noise reduction |
02/07/2001 | CN2418640Y Plane loudspeaker fixing device |
02/07/2001 | CN1283066A Cross complementing sound enclosure with lower limitation of cavity frequency and low distortion |
01/31/2001 | EP1073315A2 Acoustic crosstalk cancellation system |
01/31/2001 | EP1072089A1 Audio signal processing method and apparatus |
01/31/2001 | CN2417654Y 耳机转换器 Headphone transducer |
01/31/2001 | CN2417653Y Wire intaking type earphone and speaking trumpet unit |
01/31/2001 | CN2417652Y Structure for arrangement and up/down adjustment of loud-speaker |
01/31/2001 | CN1282444A Method and system for processing virtual acoustic environment |
01/30/2001 | US6181799 Greetings or the like card |
01/30/2001 | US6181797 Piezo speaker for improved passenger cabin audio systems |
01/30/2001 | CA2076288C Microphone and loudspeaker system |
01/29/2001 | CA2314374A1 Acoustic crosstalk cancellation system |
01/24/2001 | EP1071309A2 Headphone with adjustable localization of the sound presentation generated by it |
01/24/2001 | CN2416703Y Active loudspeaker box |
01/24/2001 | CN2416702Y Remote-control wireless headphone |
01/24/2001 | CN2416701Y Improved all-diapason horn loud-speaker box |
01/24/2001 | CN2416700Y Thunder ball |
01/24/2001 | CN2416699Y Audiovisual equipment with multiple-sound channel earphone outputting socket |
01/18/2001 | WO2001005188A1 Sound reproducing unit |
01/17/2001 | EP1068769A1 In-home theater surround sound speaker system |
01/16/2001 | US6175489 Onboard speaker system for portable computers which maximizes broad spatial impression |
01/11/2001 | WO2001003471A1 Vehicle-mounted acoustic system |
01/11/2001 | WO2000046786A3 A headphone comprising bending-wave loudspeakears |
01/10/2001 | EP1067818A2 Video equipment speaker device with acoustic lens |
01/10/2001 | CN2414573Y Loudspeaker casing hanging frame |
01/10/2001 | CN1279561A Loudspeaker device with acoustic lenses for video apparatus |
01/09/2001 | US6173061 Steering of monaural sources of sound using head related transfer functions |
01/09/2001 | CA2134408C Anti-eavesdropping device |
01/06/2001 | CA2313423A1 Video equipment speaker device with acoustic lens |
01/03/2001 | CN2413460Y New speaker |
01/02/2001 | US6169814 Fetal communication device |
01/02/2001 | US6169812 Point source speaker system |
01/02/2001 | US6169809 Visual display means incorporating loudspeakers |
01/02/2001 | CA2048686C Audio signal reproducing apparatus |
12/27/2000 | CN2412340Y Mobile plate loudspeaker and bass combiner |
12/27/2000 | CN2412339Y Multifunctional plate loudspeaker |
12/27/2000 | CN2412338Y Stereo loudspeaker for PC |
12/27/2000 | CN2412337Y Horn speaker |
12/26/2000 | US6167140 AV Amplifier |
12/21/2000 | WO2000078092A1 Loudspeaker |
12/21/2000 | DE19925843A1 Method for generating transmission medium for acoustic music signal, involves using two or more signal components and time adjuster |
12/20/2000 | EP1061774A2 Audio system having a sound field processor |
12/20/2000 | EP1060433A1 Industrial safety assembly including disposable ear protection and ear phone |
12/14/2000 | WO2000076272A1 Digital wireless loudspeaker system |
12/14/2000 | WO2000076266A2 Virtual multichannel speaker system |
12/14/2000 | WO2000076176A2 Loudspeaker volume range control |
12/13/2000 | CN2410838Y Rotating wheeled horn |
12/13/2000 | CN2410837Y Loudspeaker box |
12/13/2000 | CN2410836Y Box structure of overweight low voice loudspeaker box |
12/06/2000 | EP1058480A2 Audio system and head attachment audio unit |
12/06/2000 | EP1057366A1 Microphone apparatus for producing signals for surround reproduction |
12/06/2000 | EP1057365A1 Personal sound masking system |
12/06/2000 | CN2409730Y Digital sounding television apparatus |
12/06/2000 | CN1275875A Acoustic system and head held acoustic apparatus |
11/30/2000 | WO2000072629A1 An underwater audio system |
11/30/2000 | WO2000072564A2 Echo compensation device |
11/29/2000 | EP1056310A2 Automotive audio system |
11/29/2000 | CN2408636Y Bionic space sound recorder |
11/29/2000 | CN1275301A Audio signal processor and audio device |
11/23/2000 | WO2000048427A3 Method and system of compensating for boundary effects on a primary sound source |
11/22/2000 | EP1054576A1 Pseudo-stereophony device |
11/22/2000 | EP0812492A4 Dual audio program system |
11/22/2000 | CN2407543Y Personal loudspeaker box baffle |
11/22/2000 | CN2407542Y Universal rotation miniature ground loudspeaker box baffle |
11/22/2000 | CN2407541Y Miniature ground loudspeaker box baffle with linkage bar support |
11/22/2000 | CN1274255A Earphone with dual earhooks |
11/22/2000 | CN1274254A 3D-space sound system |
11/21/2000 | US6151402 Vibration transducers |
11/21/2000 | US6151401 Planar speaker for multimedia laptop PCs |
11/21/2000 | US6151206 Electronic device |
11/16/2000 | WO2000032011A3 Loudspeaker with statuary-like diaphragm |
11/15/2000 | EP1052878A1 Device for connecting a source to an audio diffusion equipment, in particular of an automotive vehicle |
11/15/2000 | EP1052877A2 Vehicle-carried sound reproduction apparatus |
11/15/2000 | CN2406435Y Wireless surrounding audio-frequency processing circuit |
11/15/2000 | CN2406434Y Microphone with automatic switch |
11/15/2000 | CN2406433Y Microphone with automatic switch |
11/15/2000 | CN1273192A Playback device mounted on vehicle |
11/14/2000 | US6148089 Unidirectional microphone |
11/14/2000 | US6148086 Method and apparatus for replacing a voice with an original lead singer's voice on a karaoke machine |
11/14/2000 | US6148085 Audio signal output apparatus for simultaneously outputting a plurality of different audio signals contained in multiplexed audio signal via loudspeaker and headphone |
11/09/2000 | DE19902874C1 Bath tub with a converter transforming electrical signals into mechanical vibrations comprises a mounting plate which by fixing elements is attachable to the bath tub wall, and is rigidly joined to the converter |
11/08/2000 | CN2405388Y Multi sound track type around sound box |
11/08/2000 | CN1272753A Receiver of TV set |
11/07/2000 | US6144747 Head mounted surround sound system |
11/07/2000 | US6144746 Loudspeakers comprising panel-form acoustic radiating elements |
11/03/2000 | CA2270825A1 Extensible loudspeaker unit for a portable computer |
11/02/2000 | WO2000065874A1 Sound reproduction employing unity summation aperture loudspeakers |
11/02/2000 | EP0728403B1 Voice transmission adaptor assembly |
11/01/2000 | CN2404269Y High fidelity final stage frequency power current amplifier |
10/31/2000 | US6141424 Headphone capable of directly converting digital audio signal into analog audio signal |
10/31/2000 | CA2188533C Industrial headset |
10/26/2000 | WO2000064216A1 Anti-feedback, full-duplex headset |
10/26/2000 | WO2000038476A3 Motor vehicle audio system |
10/26/2000 | WO2000035243A3 Noise reducing headsets |
10/26/2000 | WO2000025549A3 Method for spatial reproduction of a stereo signal and arrangement for carrying out said method |