Patents for H04R 5 - Stereophonic arrangements (11,598)
08/2001
08/30/2001DE10102194A1 Verfahren zur Festlegung der Ortbarkeit eines per Kopfhörer übertragenen Schallereignisses A method for determining the detectability of a transmitted via headphones sound event
08/30/2001DE10005626A1 Bereitstellung von Mitteln zur Aufnahme von Sprachsignalen und Kommunikationseinrichtung Providing means for receiving voice signals and communication equipment
08/29/2001EP1127476A1 Point source speaker system
08/29/2001CN2445537Y Radio domestic vedio and audio equipment with loudspeaker box
08/28/2001US6282298 Acoustic device
08/28/2001US6282206 Variable bandwidth communication systems and methods
08/23/2001WO2001062054A2 Wiring interconnection system
08/23/2001US20010016047 Automatic sound field correcting system
08/23/2001US20010016046 Automatic sound field correcting system and a sound field correcting method
08/23/2001US20010016045 Method of correcting sound field in an audio system
08/23/2001DE10007845A1 Fixing device for attaching earphones and/or microphones to clothing, has disk shaped permanent magnet arranged at fastening location of earphones within clothing
08/22/2001EP1126746A2 Automatic sound field correcting system and a sound field correcting method
08/22/2001EP1126745A2 Sound field correcting method in audio system
08/22/2001EP1126744A2 Automatic sound field correcting system
08/22/2001EP1126743A2 Method of correcting sound field in an audio system
08/22/2001EP0803170A4 Integral radio and infrared assistive listening device
08/22/2001CN2444369Y Regurator for angle of loudspeaker
08/22/2001CN1070017C Image display incorporating loudspeakers
08/21/2001US6278787 Loudspeakers
08/16/2001WO2001059813A2 A speaker alignment tool
08/16/2001US20010014159 Audio reproducing apparatus
08/16/2001DE10004284A1 Tragbares Datenaufnahme- und/oder Datenwiedergabegerät A portable data recording and / or reproducing unit
08/15/2001CN2443568Y Combined loudspeaker
08/15/2001CN2443567Y Big/small music magnetic disk dual-purpose walkman
08/15/2001CN1308484A Loudspeaker support
08/14/2001US6275595 High performance stereo sound enclosure for computer visual display monitor and method for construction
08/14/2001US6275589 Method and apparatus for error masking in multi-channel audio signals
08/14/2001CA2167241C Monitor support
08/09/2001WO2001058208A2 Support system for a portable device
08/09/2001WO2001058207A2 Portable device for transmitting sound
08/09/2001US20010012377 Steganographically encoding a first image in accordance with a second image
08/09/2001US20010012373 Garment-worn microphone, and communication system and method employing such a microphone for voice control of devices
08/09/2001US20010012369 Integrated panel loudspeaker system adapted to be mounted in a vehicle
08/09/2001US20010012368 Stereophonic sound processing system
08/08/2001EP1122980A1 Vehicle-mounted acoustic system
08/08/2001EP1122978A2 Multi-channel headphone system
08/08/2001EP1122976A1 Retention system for a portable device
08/08/2001EP1122975A1 Portable device for transmitting sound
08/08/2001EP1121768A1 Method and device for developing a virtual speaker distant from the sound source
08/08/2001CN2442471Y Composite passive radiation type voice box
08/02/2001WO2001019131A3 Sensor array mounting
08/02/2001US20010010727 Personal earphone assembly for mounting upon eyeglasses
08/01/2001CN2441274Y Earphones for several persons
08/01/2001CN1306282A MP-3 player
07/2001
07/26/2001WO2001054131A1 Mp-3 player
07/26/2001WO2001052737A1 Method and system for on-line hearing examination and correction
07/26/2001US20010009540 Portable information processing apparatus with a plurality of speakers
07/25/2001CN1069016C Loud speaker system for TV. set
07/24/2001US6266430 Audio or video steganography
07/24/2001US6266426 Visual display means incorporating loudspeakers
07/19/2001DE19956690A1 Beschallungseinrichtung Sound system
07/18/2001CN1304274A Sound guider for radio sound transmission
07/17/2001US6263085 Surround sound headphones
07/12/2001WO2001050809A1 Headphone device
07/12/2001WO2000076266A3 Virtual multichannel speaker system
07/12/2001DE19961700A1 Natural sound circuit for acoustic reproduction of speech and music for hi-fi stereo systems has additional loudspeakers deriving difference signal from plus and minus poles of stereo outputs
07/11/2001CN2439152Y Loudspeaker apparatus
07/11/2001CN2439151Y Horn dustproof cover with improved structure
07/11/2001CN1303576A Speaker apparatus and television set
07/11/2001CN1303227A Transmission/receiving device and transmission/receiving method
07/11/2001CN1303187A Portable voice frequency listening equipment
07/11/2001CN1068497C Loadspeaker system
07/10/2001US6259792 Waveform playback device for active noise cancellation
07/10/2001US6259482 Digital BTSC compander system
07/05/2001WO2001049072A2 Method and apparatus for producing spatially distributed sound into a set of headphones
07/05/2001WO2001049066A2 Headphones with integrated microphones
07/05/2001WO2000076176A3 Loudspeaker volume range control
07/05/2001WO2000072564A3 Echo compensation device
07/05/2001US20010006553 Transmitting method and apparatus
07/04/2001EP1113703A1 Sound reproducing unit
07/04/2001CN2438283Y Miniature double-track all-directionally adjusting sound pipe
07/03/2001US6256397 Body-sensible swinging and vibrating apparatus
06/2001
06/28/2001WO2001047319A2 Method and arrangement for recording and playing back sounds
06/28/2001US20010005423 Steganographic system with changing operations
06/28/2001US20010005416 Signal processing for audio device
06/27/2001EP1110425A1 Acoustical speaker housing and methods of installation
06/27/2001EP0872156B1 Stereo loudspeaker system
06/27/2001CN1301128A Full-band loudspeaker
06/21/2001DE19960014A1 Food chewing noise characterization device e.g. for crispness testing, uses microphone and food chewing device mounted in common housing
06/21/2001DE19955867A1 Flachlautsprecheranordnung für Tieftonwiedergabe Flat speaker arrangement for bass reproduction
06/20/2001CN2435893Y Portable miniature sound headphone adapter
06/20/2001CN2435892Y 耳机 Headphone
06/20/2001CN1300518A In-home theater surround sound speaker system
06/14/2001WO2001043502A2 Method for fixing the hifi position of an audio system
06/13/2001EP1106439A2 Automobile pillar electroacoustical transducing
06/13/2001DE19959025A1 Verfahren zur Festlegung der HIFI-Position eines Audiosystems A method for determining the position of a hi-fi audio system
06/13/2001CN1299576A Panel-form loudspeaker
06/13/2001CN1299187A High-fidelity final-stage power current amplifier
06/12/2001US6246772 Wireless headphone/speakers sound field control circuit
06/12/2001CA2034287C Acoustic signal reproducing apparatus
06/07/2001WO2001041506A1 Stereophonic reproducing device and method
06/07/2001WO2001041499A2 Method and device for improving communication in a vehicle
06/07/2001DE10059538A1 Audio player for 5 channel DVD combines channels for headphones reduces loss of sound information
06/07/2001CA2391797A1 Method and device for improving communication in a vehicle
06/06/2001EP0848893B1 Headset with ear cushion and means for limiting the compression of the cushion
06/06/2001CN2433796Y Flat-thin-type loudspeaker
06/05/2001US6243478 Flat speakers for personal computer
06/05/2001US6243473 Laptop computer with loudspeaker(s)
06/05/2001US6243260 Retractable speakers for portable computer
05/2001
05/31/2001WO2001039548A1 Two methods and two devices for processing an input audio stereo signal, and an audio stereo signal reproduction system