| Patents for G10K 11 - Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general (21,150) |
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| 03/29/1990 | DE3832947A1 Ultrasonic (ultrasound) transducer, in particular for airflow sensors (air volume meters) |
| 03/29/1990 | DE3832644A1 Coupling a sound-emission pick-up to a sound-emitting or sound-transmitting part |
| 03/29/1990 | DE3831735A1 Transverse flute and reflector device for a transverse flute |
| 03/28/1990 | EP0360517A2 Sound reproducing apparatus |
| 03/28/1990 | EP0360037A2 Damping mass for SW elements |
| 03/28/1990 | CN2055110U Mobile silencing and thermo-insulating material |
| 03/27/1990 | US4912686 Sensor apparatus |
| 03/27/1990 | US4912685 Side looking sonar apparatus |
| 03/27/1990 | US4910838 Method for providing a desired sound field as well as an ultrasonic transducer for carrying out the method |
| 03/22/1990 | WO1990003026A1 Noise reduction in vehicle cabins |
| 03/22/1990 | WO1990002945A1 Ultrasonic wave inspecting apparatus |
| 03/22/1990 | WO1990002519A1 Epicardial multifunctional probe |
| 03/22/1990 | WO1990002513A1 Active attenuation system for medical patients |
| 03/22/1990 | DE3929611A1 Intracavitary ultrasonic probe scanning planes with common origin - has ultrasonic transducer rotatable about two axes according to coupling modes |
| 03/21/1990 | EP0359546A2 Ultrasound system with improved coupling fluid |
| 03/20/1990 | US4909082 Acoustic transducer for acoustic microscopy |
| 03/20/1990 | CA1266910A1 Wide band interferometric sonar and compressed transmission |
| 03/15/1990 | DE3928550A1 Timber barking drum - lined with specified materials and lifting bars to reduce timber loss and noise |
| 03/13/1990 | US4908601 Loud speaker with horizontal radiation pattern |
| 03/13/1990 | US4908543 Acoustic transducer |
| 03/13/1990 | US4907455 Ceramic delay lines for hot ultrasonic examination |
| 03/08/1990 | WO1990002447A1 Signal processing means for sensing a periodic signal in the presence of another interfering periodic noise |
| 03/08/1990 | WO1990002380A1 Selective active cancellation system for repetitive phenomena |
| 03/08/1990 | WO1990001902A1 Acoustic coupler |
| 03/06/1990 | US4907208 Sonar transducer assembly for fishing boats |
| 03/06/1990 | US4906501 Laminated damping material for vehicle and method for welding the material to vehicle body panel |
| 03/06/1990 | US4905700 Method of transmitting ultrasound into a body |
| 03/01/1990 | DE3829495A1 Airborne sound adsorbing material |
| 02/28/1990 | EP0355177A1 Apparatus for the contactless desintegration of concrements in a living thing body |
| 02/28/1990 | EP0355176A1 Device for the contactless desintegration of concrements in a living thing body |
| 02/27/1990 | US4903794 Acoustical amplifying stethoscope |
| 02/27/1990 | US4903793 Noise suppression by gas liquid mixture |
| 02/22/1990 | WO1990001645A1 Vibration damping materials |
| 02/22/1990 | DE3827906A1 Airborne sound protective curtain |
| 02/20/1990 | US4901729 Rubber with crosslinking agent; improved contact and sensitivity |
| 02/20/1990 | US4901709 For extra corporeal lithotripsy treatment of calculi in a patient |
| 02/13/1990 | US4901288 Compact cylindrical sonobuoy |
| 02/13/1990 | US4899846 Sound absorbing pipe |
| 02/13/1990 | US4899845 Echographic technique-based method and apparatus to detect structure and anomalies of the subsoil and/or sea bottom and the like |
| 02/08/1990 | WO1990000968A1 Noise attenuation panel |
| 02/08/1990 | DE3826799A1 Ultrasonic transducer |
| 02/07/1990 | EP0353418A2 Method and foam body for closing hollow bodies |
| 02/06/1990 | US4899387 Active low frequency acoustic resonance suppressor |
| 02/06/1990 | US4898783 Sound and thermal insulation |
| 02/01/1990 | DE3825494A1 Magnetically adhering damping film and method for its production |
| 01/31/1990 | EP0352993A1 Noise attenuation panel |
| 01/31/1990 | EP0352265A1 Noise attenuation |
| 01/30/1990 | US4897824 Sonar systems |
| 01/30/1990 | CA1265063A1 Methods and means for deafening externally generated noises reaching the eardrum and for improving the clarity of perceived electro-acoustic communications |
| 01/24/1990 | EP0351611A2 Mass-spring system for sound protection purposes |
| 01/23/1990 | US4895158 Ultrasonic probe |
| 01/17/1990 | EP0351050A1 Ultrasonic temperature sensors, and ultrasonic waveguide connectors for use therewith |
| 01/16/1990 | US4894806 Ultrasonic imaging system using bundle of acoustic waveguides |
| 01/16/1990 | US4894576 Surface-acoustic-wave convolver |
| 01/16/1990 | US4893628 Dual element ultrasonic transducer probe for combined imaging of tissue structures and blood flow in real time |
| 01/16/1990 | US4893614 Apparatus for disintegrating a calculus by an underwater shock wave from outside the human body |
| 01/11/1990 | WO1990000095A1 Frequency controlled motor driven low frequency sound generator |
| 01/11/1990 | DE3922139A1 Device for noise reduction |
| 01/10/1990 | CN1006415B Ultrasonic transducer probe drive mechanism with position sensor |
| 01/09/1990 | US4893343 Dual diverging manifold loudspeaker system |
| 01/09/1990 | US4893289 Production of directionally limited acoustic power spectra |
| 01/09/1990 | US4893284 Calibration of phased array ultrasound probe |
| 01/09/1990 | US4893283 Echo ultrasound system with an improved image sequence rate |
| 01/09/1990 | US4892103 Ultrasonic scanning pulse-generating apparatus |
| 01/03/1990 | CN2050651U Adjustable sound device of buzzer |
| 01/02/1990 | US4891796 Icing preventive device for ultrasonic wave transmitting and receiving unit for vehicle |
| 01/02/1990 | US4890603 Extracorporeal shock wave lithotripsy employing non-focused, spherical-sector shock waves |
| 12/28/1989 | WO1989012432A1 Active noise reduction system |
| 12/28/1989 | WO1989012424A1 Hand held spring-loaded ultrasonic probe |
| 12/27/1989 | CN1038387A Multidimensional stereophonic sound reproduction system |
| 12/27/1989 | CA1264037A1 Anti-noise guard for machine or conveyor |
| 12/26/1989 | US4890334 Buoy structure for detecting fishing grounds |
| 12/26/1989 | US4890267 Switch matrix |
| 12/26/1989 | US4889209 Sound insulating container for an electrical appliance |
| 12/21/1989 | DE3820825A1 Noise absorbing equipment |
| 12/19/1989 | US4888747 Sonar transducer control arm assembly for fishermen |
| 12/19/1989 | US4888746 Focussing ultrasound transducer |
| 12/19/1989 | US4888086 Ultrasonic method |
| 12/19/1989 | US4887885 Diffraction free arrangement |
| 12/19/1989 | US4887460 Apparatus for measuring the vibrational characteristics of a muffler |
| 12/14/1989 | WO1989012373A1 Multidimensional stereophonic sound reproduction system |
| 12/14/1989 | WO1989011841A1 Sound attenuation system for personal seat |
| 12/14/1989 | DE3916032A1 Active damping (absorbing, attenuating) devices for vibrations, in particular in the form of noise, in a series arrangement |
| 12/14/1989 | DE3916031A1 Active damping (absorbing, attenuating) device for vibrations, in particular in the form of noise, without acoustic delay |
| 12/12/1989 | US4887247 Compliant tube baffle |
| 12/12/1989 | US4887246 Ultrasonic apparatus, system and method |
| 12/12/1989 | US4886069 Method of, and apparatus for, obtaining a plurality of different return energy imaging beams responsive to a single excitation event |
| 12/12/1989 | US4886068 Ultrasonic coupling agent |
| 12/05/1989 | CA1263736A1 Ultrasonic sector scanner |
| 12/05/1989 | CA1263735A1 Ultrasonic scanning device with elastic bumper |
| 12/05/1989 | CA1263734A1 Sonar apparatus |
| 11/28/1989 | US4884251 Housing for a sonic transducer |
| 11/28/1989 | US4883143 Anechoic coating for acoustic waves |
| 11/28/1989 | CA1263472A1 Method and apparatus for estimating the ultrasound attenuation-vs-frequency slope of a propagation medium from the complex envelope of a signal |
| 11/23/1989 | EP0342353A2 Arrangement for diminishing the noise level within a motor car |
| 11/23/1989 | EP0101509B1 Ultrasonic transducers |
| 11/22/1989 | CN2048228U Ceramic assembly sound box |
| 11/21/1989 | US4882562 Adaptor for coupling plural compression drivers to a common horn |
| 11/21/1989 | US4881618 Acoustic lens for use in acoustic microscope |
| 11/21/1989 | CA1263172A1 Ultrasonic sector scanner |