| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 05/01/1997 | WO1997009854A3 Personal computers |
| 05/01/1997 | WO1997009852A3 Visual display means incorporating loudspeakers |
| 05/01/1997 | WO1997009841A3 Greetings or the like card |
| 04/30/1997 | CN2253555Y Automatic lifting and adjusting sounding angular sound ball |
| 04/30/1997 | CN1148786A Method for jointing screen head and casing of microphone |
| 04/29/1997 | US5625724 Fiber optic hydrophone having rigid mandrel |
| 04/29/1997 | US5625699 Speaker device |
| 04/29/1997 | US5625171 Interchangeable earpiece for stereo listening |
| 04/29/1997 | CA2157518A1 Assymetrical wall enclosure loudspeaker |
| 04/28/1997 | CA2188899A1 Multiple cone transducer |
| 04/23/1997 | CN2253085Y Double-plug earpiece |
| 04/23/1997 | CN2253084Y Bidirectional separating visinting microphone |
| 04/22/1997 | US5623391 Speaker cover and snap-in coupling therefor |
| 04/22/1997 | US5623133 Speaker grille and molding method therefor |
| 04/22/1997 | US5623132 Modular port tuning kit |
| 04/16/1997 | EP0768808A1 Lead frame material for electro acoustic transducer |
| 04/16/1997 | EP0767949A1 Process and device for generating spherical waves in the ultrasound range |
| 04/15/1997 | US5621804 Composite loudspeaker apparatus and driving method thereof |
| 04/10/1997 | WO1997013241A1 High-gain directional transducer array |
| 04/10/1997 | DE19642070A1 Loudspeaker housing |
| 04/10/1997 | DE19537582A1 Corner loudspeaker horn for radiating music signals in bass range |
| 04/10/1997 | DE19537401A1 Device for local and directional radiation of audio sound waves e.g. for loudspeakers |
| 04/09/1997 | EP0766904A1 Use of a fluid flow measuring device as a microphone and system comprising such a microphone |
| 04/09/1997 | EP0681688A4 Ultrasonic pest control device and method for constructing the same. |
| 04/09/1997 | EP0645070B1 Stereophonic sound reproduction device using several loudspeakers in each channel |
| 04/09/1997 | CN2251849Y Earphone circuit lead coiling device |
| 04/08/1997 | US5619585 Means for affixing an ornamental sculpture to a sound emitting device |
| 04/08/1997 | US5619584 Headphone |
| 04/08/1997 | US5619582 Enhanced concert audio process utilizing a synchronized headgear system |
| 04/08/1997 | CA2099945C Telephonic headset structure for reducing ambient noise |
| 04/08/1997 | CA2094616C Compact loudspeaker assembly |
| 04/03/1997 | WO1997012495A1 Mounting arrangement for a noise cancelling microphone |
| 04/03/1997 | WO1997009853A3 Display screens incorporating loudspeakers |
| 04/03/1997 | WO1997009840A3 Loudspeakers comprising panel-form acoustic radiating elements |
| 04/03/1997 | DE19630701A1 Leistungsverstärker- und Lautsprecherkorb-Integration Power amplifier and loudspeaker frame integration |
| 04/02/1997 | EP0766494A1 Digital microphonic device |
| 04/02/1997 | CN2251237Y Microphone sounding head for improving tone quality |
| 04/02/1997 | CN1146846A Microphone device |
| 04/02/1997 | CN1146704A Speaker structure for telephone/intercom |
| 04/01/1997 | US5616892 Virtual imaging multiple transducer system |
| 04/01/1997 | US5616891 Sealing panel, in particular for automobiles, including a loudspeaker housing |
| 03/27/1997 | WO1997011574A1 Earphones with eyeglass attachments |
| 03/27/1997 | WO1997011573A1 Acoustically transparent earphones |
| 03/26/1997 | EP0710427B1 Sound pick-up and reproduction apparatus and use thereof for conference calls |
| 03/26/1997 | CN2250613Y Microphone base on table |
| 03/26/1997 | CN2250612Y Microphone with wave trap |
| 03/25/1997 | US5615273 Microphone assembly in a microphone boom of a headset |
| 03/25/1997 | US5615176 Acoustic reflector |
| 03/25/1997 | CA2045241C Combination head-protective helmet with local and remote voice triggered communication system |
| 03/20/1997 | DE19534188A1 Cordless transmission device adapting method especially to ETSI appropriate frequency band |
| 03/19/1997 | EP0763310A1 Loudspeaker, in particular in the form of a column |
| 03/19/1997 | EP0763232A1 Piezo-electric ultrasound transducer |
| 03/18/1997 | US5613011 Microphone assembly mounted to a bezel which frames a monitor screen of a computer |
| 03/18/1997 | US5611508 Horizontally adjustable microphone support |
| 03/13/1997 | WO1997009862A1 Panel-form microphones |
| 03/13/1997 | WO1997009861A1 Inertial vibration transducers |
| 03/13/1997 | WO1997009859A1 Inertial vibration transducers |
| 03/13/1997 | WO1997009857A2 Musical instruments incorporating loudspeakers |
| 03/13/1997 | WO1997009856A2 A portable compact disc player |
| 03/13/1997 | WO1997009855A2 Packaging incorporating loudspeakers |
| 03/13/1997 | WO1997009854A2 Personal computers |
| 03/13/1997 | WO1997009853A2 Display screens incorporating loudspeakers |
| 03/13/1997 | WO1997009852A2 Visual display means incorporating loudspeakers |
| 03/13/1997 | WO1997009850A1 Headset with ear cushion and means for limiting the compression of the cushion |
| 03/13/1997 | WO1997009849A1 Loudspeakers with panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009848A1 Noticeboards incorporating loudspeakers |
| 03/13/1997 | WO1997009847A1 Panel-form loudspeakers |
| 03/13/1997 | WO1997009846A1 Panel-form loudspeakers |
| 03/13/1997 | WO1997009845A2 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009844A1 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009843A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009842A2 Acoustic device |
| 03/13/1997 | WO1997009841A2 Greetings or the like card |
| 03/13/1997 | WO1997009840A2 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009698A1 A vending machine |
| 03/13/1997 | DE19532879A1 Loudspeaker box for in-car stereo |
| 03/13/1997 | CA2234944A1 Display screens incorporating loudspeakers |
| 03/13/1997 | CA2230704A1 Packaging |
| 03/13/1997 | CA2230702A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2230701A1 Panel-form loudspeakers |
| 03/13/1997 | CA2230461A1 Panel-form loudspeakers |
| 03/13/1997 | CA2230459A1 A vending machine |
| 03/13/1997 | CA2230449A1 Panel-form microphones |
| 03/13/1997 | CA2230444A1 Greetings or the like card |
| 03/13/1997 | CA2230438A1 Loudspeakers with panel-form acoustic radiating elements |
| 03/13/1997 | CA2230234A1 Noticeboards incorporating loudspeakers |
| 03/13/1997 | CA2230161A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2230155A1 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2230154A1 Musical instruments incorporating loudspeakers |
| 03/13/1997 | CA2230104A1 A portable compact disc player |
| 03/13/1997 | CA2230075A1 Visual display means incorporating loudspeakers |
| 03/13/1997 | CA2230064A1 Personal computers |
| 03/13/1997 | CA2230053A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2229857A1 Inertial vibration transducers |
| 03/12/1997 | EP0762801A2 Non-directional speaker system with point sound source |
| 03/12/1997 | EP0762800A2 Lead frame for electroacoustic transducer and electroacoustic transducer |
| 03/12/1997 | EP0760996A1 Multimedia personal computer with active noise reduction and piezo speakers |
| 03/12/1997 | CN2249476Y Multi-audio-frequency combined voice box |
| 03/12/1997 | CN2249475Y Double-way reserved phase voice box |
| 03/12/1997 | CN1145142A Elastomeric connector |