| Patents for H04R 5 - Stereophonic arrangements (11,598) |
|---|
| 02/28/2002 | US20020025057 Chin loop headset |
| 02/28/2002 | US20020025053 Speaker alignment tool |
| 02/28/2002 | CA2350247A1 System for delivering synchronized audio content to viewers of movies |
| 02/26/2002 | US6351542 Loudspeakers with panel-form acoustic radiating elements |
| 02/26/2002 | US6351271 Method and apparatus for sending and receiving lightweight messages |
| 02/20/2002 | CN1337140A Headphone |
| 02/20/2002 | CN1336779A Processing circuit unit for stereo surrounding acoustic effect |
| 02/14/2002 | WO2002012022A1 Automotive audiovisual system |
| 02/14/2002 | WO2001039541A3 Flat loudspeaker system for bass reproduction |
| 02/14/2002 | US20020018572 Methods for detecting alteration of audio |
| 02/13/2002 | CN2476913Y Multi-direction rotation hanging device |
| 02/07/2002 | WO2001049066A3 Headphones with integrated microphones |
| 02/07/2002 | US20020015502 Audio system, in particular for motor vehicles |
| 02/07/2002 | US20020015501 Noise reducing |
| 01/31/2002 | WO2002009474A2 Stereo audio processing device |
| 01/31/2002 | WO2001043502A3 Method for fixing the hifi position of an audio system |
| 01/31/2002 | US20020012435 Automatic stereo/monaural headphone |
| 01/31/2002 | DE10034322A1 HiFi-Kopfhörer mit Mobiltelefon Hi-Fi headphones with mobile phone |
| 01/30/2002 | CN2475239Y Hand-held-free earphone |
| 01/30/2002 | CN1333994A Binaural signal processing techniques |
| 01/29/2002 | US6343138 Security documents with hidden digital data |
| 01/29/2002 | US6343132 Loudspeaker |
| 01/29/2002 | US6343131 Method and a system for processing a virtual acoustic environment |
| 01/29/2002 | US6343130 Stereophonic sound processing system |
| 01/29/2002 | US6343129 Elastomeric dielectric polymer film sonic actuator |
| 01/29/2002 | CA2169077C A personal hands free communications device |
| 01/24/2002 | WO2002007479A1 A synchronised binaural hearing system |
| 01/24/2002 | WO2001062054A3 Wiring interconnection system |
| 01/24/2002 | DE10034581A1 Multichannel microphone system has a three separate loudspeakers receiving phased signals |
| 01/23/2002 | CN1332593A Cordless earphone matching with video and audio equipment |
| 01/17/2002 | WO2002005589A2 Hifi-headphones with a mobile telephone |
| 01/17/2002 | WO2001059813A3 A speaker alignment tool |
| 01/17/2002 | US20020006206 Center channel enhancement of virtual sound images |
| 01/16/2002 | CN1331060A Ceramics used for preparing sound enclosure |
| 01/15/2002 | US6339696 In-vehicle audio/video system |
| 01/10/2002 | US20020003889 Headphone device with improved controls and/or removable memory |
| 01/09/2002 | CN2471048Y Earphone capable of changing ear-plug |
| 01/09/2002 | CN2471047Y Four-sound-channel three-dimension stereo earphone |
| 01/08/2002 | US6336615 Device for mounting speaker on display |
| 01/03/2002 | WO2002001916A2 Sound reproduction systems |
| 01/03/2002 | US20020002013 Wiring interconnection system |
| 01/03/2002 | US20020001396 Files and methods employing common information in both header and steganographic embedding |
| 01/03/2002 | DE10137404A1 Operating wireless audio system by determining band occupancy from evaluation of reception field strengths and determining suitable frequencies for reach reception unit |
| 01/02/2002 | EP1168885A2 Speaker system comprising a means for selecting a specific speaker in order to transmit an audible message to a specific location |
| 01/02/2002 | CN2469646Y Dual-purpose carry-on player suited for audio disk in large and small size |
| 01/01/2002 | US6335975 Rainproof and omnidirectional loudspeaker system |
| 01/01/2002 | US6335974 Speaker system for television receiver with sound ducts and perforated panels |
| 12/27/2001 | WO2001058208A3 Support system for a portable device |
| 12/27/2001 | US20010055403 High frequency loudspeaker |
| 12/27/2001 | US20010055397 Parametric virtual speaker and surround-sound system |
| 12/26/2001 | CN2468250Y Multi-sound channel combined earphone |
| 12/23/2001 | CA2345187A1 Addressable speaker system |
| 12/20/2001 | WO2001097560A2 Portable audio devices |
| 12/20/2001 | WO2001041499A3 Method and device for improving communication in a vehicle |
| 12/20/2001 | US20010053236 Audio or video steganography |
| 12/20/2001 | US20010053231 Audio speaker system for personal computer |
| 12/20/2001 | US20010053230 Acoustic devices |
| 12/20/2001 | US20010053228 Noise cancellation system for active headsets |
| 12/20/2001 | US20010053227 Automatic mono/stereo detection |
| 12/19/2001 | CN2466859Y Motorcycle sound device |
| 12/19/2001 | CN1327704A Speaker device |
| 12/19/2001 | CN1327703A Speaker unit |
| 12/18/2001 | US6332029 Acoustic device |
| 12/13/2001 | WO2001065890A3 Loudspeaker system |
| 12/13/2001 | WO2001026272A3 Internet based hearing assessment methods |
| 12/13/2001 | US20010050992 Two-piece wireless electromechanical corpometer/stethoscope |
| 12/13/2001 | US20010050991 Portable audio devices |
| 12/12/2001 | CN2465432Y Ear cover for earphone |
| 12/12/2001 | CN2465431Y Ear cover type earphone |
| 12/11/2001 | US6330335 Audio steganography |
| 12/11/2001 | US6329908 Addressable speaker system |
| 12/06/2001 | WO2001093630A1 Neckphone |
| 12/06/2001 | DE10061838A1 Earphone for multimedia surround sound creates inner ear extension improves directional information |
| 12/06/2001 | DE10027164A1 Circuit for converting digital electrical signals into continuous acoustic signals using digital amplifiers driving electroacoustic transducers with low-pass characteristics |
| 12/06/2001 | DE10025496A1 Audio system has control device that generates control signals based on interference signals extracted from signals output by microphone, and switches at least one tweeter of loudspeaker system as microphone |
| 12/06/2001 | DE10025460A1 Hochtonlautsprecher Tweeter |
| 12/05/2001 | CN2464035Y Space sound apparatus |
| 12/05/2001 | CN2464027Y Structure for connecting transverse-set bass tube and TV set |
| 12/05/2001 | CN1325258A Flat plate sound box |
| 12/04/2001 | US6327369 Loudspeakers comprising panel-form acoustic radiating elements |
| 12/04/2001 | US6326795 Capacitance detection system and method |
| 11/29/2001 | WO2001026422A3 Acoustic correction apparatus |
| 11/29/2001 | US20010046304 System and method for selective control of acoustic isolation in headsets |
| 11/29/2001 | US20010046199 Recording and playback of multi-channel digital audio having different resolutions for different channels |
| 11/28/2001 | EP1158834A2 High frequency loudspeaker |
| 11/28/2001 | EP0988772B1 Personal computing devices comprising a resonant panel loudspeaker |
| 11/28/2001 | CN1324526A Method and device for developing a virtual speaker distant from the sound source |
| 11/28/2001 | CN1324205A Sound box frequency divider with high resolution and less distortion |
| 11/27/2001 | US6324294 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements |
| 11/27/2001 | US6324052 Personal computing devices comprising a resonant panel loudspeaker |
| 11/27/2001 | US6322521 Method and system for on-line hearing examination and correction |
| 11/27/2001 | US6321869 Speaker system for personal computers |
| 11/22/2001 | WO2001015489A3 Vehicular audio system including a headliner as vibrating diaphragm and with a computer system |
| 11/22/2001 | US20010043714 Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein |
| 11/22/2001 | US20010043710 Apparatus for picking up sound waves |
| 11/21/2001 | CN1075316C Loudspeaker system of television |
| 11/20/2001 | US6320967 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements |
| 11/15/2001 | WO2001017201A3 Apparatus for hands-free operation with two sound reproduction transducers |
| 11/15/2001 | WO2001011918A3 Compensation system and method for sound reproduction |
| 11/15/2001 | US20010041476 Connector, multi-channel audio system, electronic apparatus, and cable for connection |