| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 07/30/1997 | EP0786189A1 Movable boom mounting device |
| 07/30/1997 | CN2258680Y Ultrathin type eletret microphone |
| 07/29/1997 | US5652734 Directional sound signaling device |
| 07/29/1997 | US5652413 Speaker cover grille |
| 07/24/1997 | WO1997026773A1 Bass reflex box |
| 07/24/1997 | WO1997026715A1 Enhanced concert audio process utilizing a synchronized headgear system |
| 07/24/1997 | DE19630965A1 Portable audio reproduction device |
| 07/24/1997 | DE19620689C1 Active loudspeaker system |
| 07/24/1997 | DE19601217C1 Baßreflexbox Bass reflex box |
| 07/24/1997 | CA2242397A1 Enhanced concert audio process utilizing a synchronized headgear system |
| 07/23/1997 | EP0784844A1 A tactile sensation generator |
| 07/22/1997 | US5651074 Noise canceling gradient microphone assembly |
| 07/17/1997 | WO1997025832A1 Improvement to an electroacoustic communication device for use on protective headgear |
| 07/17/1997 | WO1997025790A2 Noise cancellation and noise reduction apparatus |
| 07/15/1997 | US5648936 Method for acoustic near field scanning using conformal arrayal |
| 07/15/1997 | US5648810 For use with a controller |
| 07/10/1997 | WO1997024905A1 Light sensitive switch with microphone |
| 07/10/1997 | WO1997009842A3 Acoustic device |
| 07/10/1997 | DE19623504C1 Optical microphone using Fabry-Perot interferometer and fibre=optics feed line |
| 07/09/1997 | EP0783238A2 Method for the production and application of annular suspension edges of lound speaker diaphragms |
| 07/09/1997 | EP0782793A1 A tactile sensation generator |
| 07/08/1997 | US5647012 Tri-chamber speaker box |
| 07/03/1997 | WO1997024011A1 Telephone strap |
| 07/03/1997 | DE19654156A1 Loudspeaker unit covering wide frequency range |
| 07/02/1997 | EP0782371A2 Microphone systems of reduced in situ acceleration sensitivity |
| 07/02/1997 | EP0782370A2 Speaker for radiating sound waves in all directions relative to a speaker-supporting surface |
| 07/02/1997 | EP0782368A2 Collapsible image derived differential microphone |
| 07/02/1997 | EP0782010A1 Linear acoustic antenna and transmit-receive antenna therefor |
| 07/02/1997 | EP0781446A1 Directional ear device with adaptive bandwidth and gain control |
| 07/01/1997 | US5644109 Speaker enclosure |
| 06/26/1997 | WO1997023116A1 Acoustic reflector |
| 06/25/1997 | EP0781070A1 Acoustic antenna for computer workstation |
| 06/25/1997 | CN2257109Y Remote-controlled lift microphone rest |
| 06/25/1997 | CN1152850A Electricity-sound transducer lead-wire terminal connection structure |
| 06/25/1997 | CN1152849A Portable loudspeaker/directional microphone peripheral |
| 06/24/1997 | US5642426 Integral radio and infrared assistive listening device |
| 06/19/1997 | WO1997022225A1 Sound reproduction device or microphone |
| 06/19/1997 | DE19546898A1 Loudspeaker with front-mounted acoustic lens e.g. for audio reproduction |
| 06/18/1997 | EP0779763A1 Improved headphone including split earphones and coupling means for coupling it to the ears |
| 06/18/1997 | CN2256615Y Household active super low voice box |
| 06/18/1997 | CN1152239A Speaker grille |
| 06/17/1997 | US5640461 Vibration reducing radio speaker assembly |
| 06/17/1997 | US5639996 Asymmetrically resonance tuned speaker-box |
| 06/17/1997 | US5639060 Mounting bracket for computer speakers |
| 06/12/1997 | WO1997021323A1 Headset with a resonant effect |
| 06/11/1997 | EP0778720A1 Woofer |
| 06/11/1997 | CN2256200Y Automatic disinfecting device for microphone |
| 06/10/1997 | US5638455 Microphone device |
| 06/10/1997 | US5636955 Surface mount ring assembly for loudspeaker |
| 06/07/1997 | CA2164543A1 Microphone arm assembly for vehicles |
| 06/05/1997 | WO1997020450A1 Stereo loudspeaker system |
| 06/05/1997 | DE19649140A1 Loudspeaker for vehicle door or side wall |
| 06/04/1997 | EP0777404A1 System for attenuation of noise |
| 06/04/1997 | EP0777402A2 Speaker grille |
| 06/04/1997 | EP0776591A1 Ported loudspeaker system and method with reduced air turbulence |
| 06/04/1997 | EP0776590A1 Bandpass woofer and method |
| 06/04/1997 | CN1151241A Use of a fluid flow measuring device as a microphone and system comprising such a microphone |
| 06/03/1997 | US5635686 Composite speaker system having a directional adjustable tweeter |
| 06/03/1997 | US5634466 Ultrasonic transesophageal probe with detachable transducer tip |
| 05/31/1997 | CA2190823A1 Acoustic system |
| 05/29/1997 | WO1997009845A3 Loudspeakers comprising panel-form acoustic radiating elements |
| 05/28/1997 | EP0775431A1 Multi-channel headset with controlled sound-emission characteristics |
| 05/28/1997 | DE19642072A1 Combined ultrasonic sensor for detecting defects in steel pipes |
| 05/28/1997 | CN1150744A Headphone |
| 05/22/1997 | DE19603002C1 Loudspeaker with phase correction device |
| 05/22/1997 | CA2417521A1 Ultrasound transducer device for continuous imaging of the heart and other body parts |
| 05/21/1997 | CN2254609Y Multifunction microphone |
| 05/21/1997 | CN1150517A Sound feeling device, playing device, method of controlling playing device, playing device using light beam, and acoustic device |
| 05/21/1997 | CN1150376A Loudspeaker case structure for video display appliances |
| 05/20/1997 | US5631965 Hearing protector |
| 05/20/1997 | US5631964 Audio apparatus |
| 05/15/1997 | WO1997017817A1 Supporting electronic equipment |
| 05/15/1997 | WO1997017569A1 Supporting assembly for a sound recording boom |
| 05/14/1997 | EP0773701A2 Portable loudspeaker/directional microphone peripheral |
| 05/14/1997 | EP0773700A2 Portable loudspeaker/directional microphone peripheral |
| 05/14/1997 | EP0773699A1 Sound feeling device, playing device, method of controlling the playing device, playing device using light beam, and acoustic device |
| 05/14/1997 | EP0773530A2 Player apparatus |
| 05/14/1997 | EP0772952A1 An audio interface garment and communication system for use therewith |
| 05/14/1997 | CN2254258Y Audio amplifier |
| 05/14/1997 | CN2254257Y Loudspeaker |
| 05/14/1997 | CA2185594A1 Portable loudspeaker/directional microphone peripheral |
| 05/13/1997 | US5629503 Vibration damping device |
| 05/13/1997 | US5629502 Speaker apparatus |
| 05/13/1997 | US5629501 Composite speaker system having a directional adjustable transducer |
| 05/09/1997 | WO1997016941A1 Enclosure for electroacoustic transducers or their systems |
| 05/09/1997 | WO1997016913A1 A method and device to fasten a loudspeaker to a circuit board |
| 05/09/1997 | WO1997016097A1 Front-locking swivel ball loudspeaker mount |
| 05/07/1997 | EP0772373A2 Arrangement for radiating acoustic waves |
| 05/07/1997 | EP0772372A1 Loudspeaker device for video monitor and video monitor with loudspeaker device |
| 05/07/1997 | EP0771515A2 Signal amplification system with automatic equalizer |
| 05/07/1997 | DE19540795A1 Speaker location method using microphone array |
| 05/06/1997 | US5627901 Directional microphone for computer visual display monitor and method for construction |
| 05/06/1997 | US5627350 Speaker housing combination |
| 05/06/1997 | US5626138 Ultrasonic transducer probe with axisymmetric lens |
| 05/06/1997 | US5625903 Headband with adjustable speaker supporting means |
| 05/06/1997 | CA2069356C Adjustable filter for differential microphones |
| 05/03/1997 | CA2188113A1 Multi-way speaker with a cabinet defining a midrange driver pyramidal compartment |
| 05/02/1997 | EP0771133A1 Multiple cone electroacoustic transducer |
| 05/02/1997 | EP0752076A4 Vibration damping device |
| 05/01/1997 | WO1997009856A3 A portable compact disc player |