| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 02/02/2000 | CN1049085C Ceramic voice box |
| 02/01/2000 | US6021208 Hidden speaker enclosure structure |
| 02/01/2000 | US6021207 Wireless open ear canal earpiece |
| 02/01/2000 | US6019188 Enclosures for loudspeaker drive units |
| 02/01/2000 | CA2116794C Audiovisual equipment casing with sound-transmitting openings |
| 01/27/2000 | WO2000004742A2 Microphone plosive effects reduction techniques |
| 01/27/2000 | DE19909806A1 Adapter connecting ear piece-microphone set to mobile telephone, containing mute switch function and permitting even coupling of existing earpiece-microphone set to mobile telephone |
| 01/27/2000 | DE19847143A1 Kabelaufwickelgehäuse für Ohrhörer Kabelaufwickelgehäuse for earphones |
| 01/27/2000 | DE19833565A1 Loudspeaker enclosure with expanded angle of radiation for middle to high frequency range of audibility from 20 to 20,000 Hz radiates high frequency energy forwards and sideways to create stereo effects with minimal sound bounce-back |
| 01/27/2000 | DE19831771A1 Kunststoffkapselung für akustischen Wandler Plastic enclosure for transducer |
| 01/27/2000 | DE19830947A1 Bass loudspeaker unit has a multiple chamber mounting frame with two or more loudspeakers designed for improving the reproduction of deep sounds. |
| 01/26/2000 | EP0974941A1 Audiovisual playback system |
| 01/26/2000 | EP0974893A1 Sound control circuit for an intelligent digital audiovisual reproduction system |
| 01/26/2000 | EP0974489A1 Vehicle radio-sound apparatus bass reflex box |
| 01/26/2000 | CN2361049Y Earmuff type earphone with elastic extension structure |
| 01/25/2000 | US6018585 Waterproof microphone |
| 01/25/2000 | US6017225 Integral holder-connector for capacitor microphone |
| 01/20/2000 | WO2000003559A1 Noise control device for a boom mounted noise-cancelling microphone |
| 01/19/2000 | EP0973355A2 Plastic encapsulation for an acoustic transducer |
| 01/19/2000 | EP0750469A4 Low profile intravascular ultrasound imaging transducer |
| 01/19/2000 | CN1241890A Sounder resonator made of composite material |
| 01/18/2000 | US6016353 Large scale sound reproduction system having cross-cabinet horizontal array of horn elements |
| 01/18/2000 | US6016347 Optical switch for headset |
| 01/18/2000 | US6015026 Acoustical diffuser assembly and method of installation |
| 01/18/2000 | US6015025 Diffuser panel with built-in speaker arrangement and methods of installation |
| 01/13/2000 | WO2000002419A1 External microphone protective membrane |
| 01/13/2000 | WO2000002417A1 Resonant panel-form loudspeaker |
| 01/13/2000 | WO2000002415A1 Loudspeaker |
| 01/13/2000 | WO2000001264A1 Headwear |
| 01/13/2000 | CA2336271A1 Resonant panel-form loudspeaker |
| 01/12/2000 | EP0971559A2 Loudspeaker |
| 01/12/2000 | EP0842508B1 Acoustic wave focusing method and device |
| 01/12/2000 | CN2358655Y Loudspeaker box with disc storage box |
| 01/12/2000 | CN1241107A Digital electro-acoustic transducer |
| 01/12/2000 | CN1241105A Earware integrating earphone, microphone and ear mask |
| 01/12/2000 | CN1241083A Mobile telephone casing |
| 01/11/2000 | US6012542 Bass amplifying system for radios |
| 01/06/2000 | WO2000001199A1 Ambidextrous sound delivery tube system |
| 01/06/2000 | WO2000001197A1 Ear level noise rejection voice pickup method and apparatus |
| 01/05/2000 | EP0969695A1 System consisting of a microphone and a preamplifier |
| 01/05/2000 | EP0969691A1 Speaker and electronic apparatus using speaker |
| 01/05/2000 | EP0903056A4 Superdirective microphone arrays |
| 01/05/2000 | CN2357455Y Loadspeaker box mounting made of high-molecular polymer composite material |
| 01/04/2000 | US6010729 Applying to meat a peroxycarboxylic acid and fatty acid |
| 01/04/2000 | US6010216 "Hear speak" two-way voice radio communications eyeglasses |
| 01/04/2000 | US6009972 Omni-directional speaker system |
| 12/30/1999 | DE19827793A1 Schwingspulenanordnung und Verfahren zu ihrer Herstellung Voice coil assembly and process for their preparation |
| 12/29/1999 | WO1999060795A3 Apparatus for operation in an on-ear mode and an off-ear mode |
| 12/29/1999 | EP0967831A2 Mobil coil device and method for its implementation |
| 12/29/1999 | EP0967772A1 Telephone housing for handsfree use |
| 12/28/1999 | US6009184 Noise control device for a boom mounted noise-canceling microphone |
| 12/28/1999 | US6009183 Ambidextrous sound delivery tube system |
| 12/28/1999 | US6009182 Down-fill speaker for large scale sound reproduction system |
| 12/28/1999 | US6008720 Portable timer alarm device with ear attachment |
| 12/28/1999 | US6007369 Wire retention contact in an electrical connector |
| 12/28/1999 | US6006361 Hearing protection device |
| 12/23/1999 | WO1999066763A1 Device having two coaxially disposed bodies which are movable relative to one another along a translation axis |
| 12/23/1999 | DE19922053A1 Tragbare elektronische Vorrichtung mit einem Lautsprecheraufbau Portable electronic device with a speaker layout |
| 12/23/1999 | DE19833940A1 Combined earpiece, microphone and ear protector group |
| 12/22/1999 | EP0966178A2 Digital electro-acoustic transducer |
| 12/22/1999 | EP0870298A4 Noise cancellation and noise reduction apparatus |
| 12/22/1999 | EP0682836A4 Sound localization system for teleconferencing using self-steering microphone arrays. |
| 12/22/1999 | CN2355505Y Microphone stand |
| 12/22/1999 | CN1239393A Support with adjustable inclination for acoustic boxes and the like |
| 12/21/1999 | US6006115 Wireless headphones for entertainment and telephonic communication |
| 12/21/1999 | US6005957 Loudspeaker pressure plate |
| 12/21/1999 | US6004209 Body-acoustic device, playing apparatus and its control method, light-beam utilizing playing apparatus, and acoustic apparatus |
| 12/21/1999 | US6004122 Composite molded product apparatus |
| 12/21/1999 | US6003766 Vending machine |
| 12/16/1999 | WO1999065271A1 Retractable speaker assembly for a partition |
| 12/16/1999 | DE19923288A1 Loudspeaker with hemispherical radiator for propagating uniform sound waves |
| 12/15/1999 | EP0963681A2 Directed acoustic stick radiator |
| 12/15/1999 | CN1238880A Telephone handset, coreless telephone or mobile telephone |
| 12/14/1999 | US6002781 Speaker system |
| 12/14/1999 | US6002780 Audio speaker having rotatable tweeter |
| 12/14/1999 | US6001072 Apparatus for imparting acoustic vibrational bodily sensation |
| 12/14/1999 | US6000948 Rotatable connector for a microphone |
| 12/14/1999 | US6000493 Sound activated lighted woofer speaker |
| 12/14/1999 | CA2206407C Ground penetrating sonar |
| 12/11/1999 | CA2240303A1 Retractable speaker assembly |
| 12/09/1999 | WO1999063786A1 Acoustic damping material |
| 12/08/1999 | EP0852104A4 Acoustically transparent earphones |
| 12/08/1999 | CN2353103Y Non-directional voice box having base loudspeaker |
| 12/08/1999 | CN1237871A String-vibrating type loudspeaker |
| 12/07/1999 | US5999233 Apparatus for reducing a vibration of a television set |
| 12/07/1999 | US5996728 Modular speaker cabinet including an integral rigging system |
| 12/07/1999 | US5996727 Exterior noise absorbing cover for automotive loudspeaker |
| 12/02/1999 | WO1999062294A1 Panel-form loudspeaker |
| 12/02/1999 | WO1999062293A1 Speaker apparatus and television set |
| 12/02/1999 | WO1999062292A1 Loudspeaker system having a bass-reflex port |
| 12/02/1999 | WO1999062291A1 Molded in speaker grid |
| 12/02/1999 | WO1999046927A3 Method and apparatus for conveying audiovisual information |
| 12/02/1999 | CA2332824A1 Panel-form loudspeaker |
| 12/01/1999 | EP0961456A1 Portable telephone handset construction |
| 12/01/1999 | EP0959773A1 Ear tips having a plurality of ear contacting surfaces |
| 12/01/1999 | CN1237099A Improved hearing protection device |
| 11/30/1999 | US5995637 Assembly housing for electroacoustical transducer |
| 11/30/1999 | US5995634 Speaker and lamp combination |
| 11/30/1999 | US5995319 Electronic apparatus having a main body and a detachable input /or output block |
| 11/30/1999 | US5992812 Shock absorbing corner impact |