| Patents for H04R 1 - Details of transducers (42,173) |
|---|
| 03/11/1997 | US5610992 Portable electronic device having a ported speaker enclosure |
| 03/11/1997 | US5610989 Coil assemblies |
| 03/06/1997 | WO1997008917A1 Ultrasonic transducer |
| 03/06/1997 | WO1997008916A1 Improved bass-reflex loudspeaker |
| 03/04/1997 | US5608809 Loudspeaker mounting apparatus |
| 02/27/1997 | WO1997007488A1 Acoustic apparatus |
| 02/26/1997 | CN2248437Y Wireless microphone receiver shell with improved structure |
| 02/26/1997 | CN1143891A Method for fixing loadspeaker, audio amplifier and loadspeaker |
| 02/25/1997 | US5606626 Speaker system with an anion generator and television using the speaker system |
| 02/25/1997 | US5606623 Overhead vehicular loud speaker cabinet |
| 02/25/1997 | US5606607 Two-way communications earset |
| 02/25/1997 | US5606143 Portable apparatus for transmitting wirelessly both musical accompaniment information stored in an integrated circuit card and a user voice input |
| 02/20/1997 | WO1997006650A1 Plate with audio apparatus |
| 02/19/1997 | EP0758519A1 Concha headset stabilizer |
| 02/19/1997 | EP0758213A1 Headset for electronic stethoscope |
| 02/19/1997 | CN2247916Y Inorganic composite audio amplifier body |
| 02/19/1997 | CA2156541A1 Headphone pillow |
| 02/18/1997 | US5604814 Flexible neck microphone |
| 02/18/1997 | US5604813 Industrial headset |
| 02/18/1997 | US5604337 Loudspeaker arrangement in television receiver cabinet |
| 02/13/1997 | WO1997004687A1 A mounting foot device for hi-fi equipment |
| 02/13/1997 | WO1997000592A3 Headset with user adjustable frequency response |
| 02/13/1997 | CA2227787A1 A mounting foot device for hi-fi equipment |
| 02/12/1997 | EP0758107A1 Timer alarm device |
| 02/11/1997 | US5602962 Mobile radio set comprising a speech processing arrangement |
| 02/11/1997 | US5602931 Connection line |
| 02/11/1997 | US5602930 Loudspeaker |
| 02/11/1997 | US5602367 Multiple tuned high power bass reflex speaker system |
| 02/11/1997 | US5602366 Spaceframe with array element positioning |
| 02/06/1997 | WO1997004620A1 Headphone device |
| 02/05/1997 | EP0756741A1 Methods and apparatus for adaptive beamforming |
| 02/05/1997 | EP0756740A1 Process and device for tracing an ultrasound field |
| 02/05/1997 | EP0756464A1 Umbrella |
| 02/05/1997 | EP0664942B1 Hearing aid microphone with modified high-frequency response |
| 02/05/1997 | CN2246880Y Once-used isolating sterilization sleeve for microphone |
| 02/04/1997 | US5600730 Swimming training device |
| 02/04/1997 | US5600608 Hydrophone carrier |
| 01/30/1997 | WO1997003438A1 Acoustic wave focusing method and device |
| 01/29/1997 | EP0755617A1 A modular tweeter |
| 01/29/1997 | CN2246361Y Mic with extension sound head structure |
| 01/28/1997 | US5598162 Removable audio remote controller for a microphone |
| 01/22/1997 | EP0755165A1 Contacting of an electroacoustic transducer inside a telephone handset |
| 01/22/1997 | EP0754359A1 Elastomeric connector |
| 01/22/1997 | EP0714590B1 Loudspeaker |
| 01/22/1997 | EP0423172B1 Active noise reduction system |
| 01/22/1997 | CN2245839Y Microphone sterilization box |
| 01/22/1997 | CN1140970A Loudspeaker device and television receiver using device |
| 01/22/1997 | CN1140969A Vibration reducing radio speaker assembly |
| 01/22/1997 | CN1140967A Ceramic sounder resonator |
| 01/15/1997 | EP0753982A2 Arrangement for hearing devices in communication terminals |
| 01/15/1997 | CN2245317Y Vase type audio amplifier |
| 01/15/1997 | CN2245316Y Dust-proof cover for loudspeaker |
| 01/15/1997 | CN1140529A Molded housing with integral acoustic chamber and anti-rattle printed circuit board supprts |
| 01/15/1997 | CN1140387A Directional microphone assembly |
| 01/14/1997 | US5594804 Multiple cone type loudspeaker |
| 01/09/1997 | WO1997001258A1 Micromechanical microphone |
| 01/09/1997 | WO1996032776A3 Signal amplification system with automatic equalizer |
| 01/08/1997 | EP0752193A1 Audio device |
| 01/08/1997 | EP0752076A1 Vibration damping device |
| 01/08/1997 | EP0751807A1 Audio-visual radiation system |
| 01/08/1997 | EP0580808B1 Expandable sonar array |
| 01/08/1997 | CN2244795Y Split-type break-resisting insert earphone |
| 01/07/1997 | US5592559 Speaker driving circuit |
| 01/07/1997 | US5592441 High-gain directional transducer array |
| 01/07/1997 | US5590771 Consolidated music instrument case with amplifier and speakers |
| 01/03/1997 | WO1997000592A2 Headset with user adjustable frequency response |
| 01/02/1997 | EP0751696A1 Equalization system of a telephone piezoceramic transducer |
| 01/02/1997 | EP0751695A2 Directional microphone assembly |
| 01/02/1997 | EP0751489A2 A flextensional transducer having a strain compensator |
| 01/02/1997 | EP0750469A1 Low profile intravascular ultrasound imaging transducer |
| 01/01/1997 | CN1139329A Transmitting/receiving apparatus for use in telecommunications |
| 12/31/1996 | US5590214 Vertical array type speaker system |
| 12/31/1996 | US5590213 Headset with adjustable headpad |
| 12/31/1996 | US5590209 Mount for supporting a microphone on a helmet |
| 12/31/1996 | US5590208 Speaker system |
| 12/31/1996 | US5590207 Sound reproducing array processor system |
| 12/31/1996 | US5590094 System and methd for reproducing sound |
| 12/31/1996 | CA2174798A1 Directional microphone housing arrangement |
| 12/28/1996 | CA2179848A1 Transducer for otoacoustic emission instruments |
| 12/27/1996 | EP0749722A2 Handheld transthoracic rotatable ultrasound transducer |
| 12/27/1996 | EP0749656A1 Portable communication device |
| 12/25/1996 | CN1138816A Structural component of speaker, speaker and its mfg. method |
| 12/24/1996 | US5588066 Speaker mounting structure |
| 12/24/1996 | US5588065 Bass reproduction speaker apparatus |
| 12/24/1996 | US5588063 Personal multimedia speaker system |
| 12/24/1996 | US5587564 Noise damper |
| 12/19/1996 | WO1996041497A1 Sampled chamber transducer with enhanced low frequency response |
| 12/19/1996 | WO1996041496A1 Wearable audio system with enhanced performance |
| 12/19/1996 | WO1996041459A1 Ear microphone with enhanced sensitivity |
| 12/19/1996 | WO1996041426A1 Modular unit headset |
| 12/19/1996 | CA2222555A1 Ear microphone with enhanced sensitivity |
| 12/18/1996 | EP0749265A1 High frequency loudspeaker |
| 12/18/1996 | EP0749264A1 Loudspeaker |
| 12/18/1996 | EP0749263A2 Headset with adjustable earhook |
| 12/18/1996 | EP0749262A1 Loudspeaker with interconnection structure |
| 12/18/1996 | EP0629327B1 Headset amplifier with automatic log on/log off detection |
| 12/17/1996 | US5586195 Body-acoustic device |
| 12/17/1996 | US5586191 Adjustable filter for differential microphones |
| 12/17/1996 | CA2178532A1 High frequency loudspeaker |
| 12/17/1996 | CA2101500C Noise-cancelling telephone handset |