| 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) |
|---|
| 04/12/1989 | EP0310621A1 Aircraft cabin noise control apparatus |
| 04/11/1989 | US4821243 Low pressure acoustic reflector for conformal arrays |
| 04/11/1989 | US4820753 Acoustic window and material therefor |
| 04/11/1989 | CA1252558A1 Ultrasonic transducer |
| 04/11/1989 | CA1252553A1 Ultrasonic compound scan with a rotating transducer |
| 04/06/1989 | WO1989003161A1 Speaker system |
| 04/06/1989 | WO1989003022A1 Level indicator |
| 04/05/1989 | EP0310564A1 Filling quantity measuring device |
| 04/05/1989 | EP0310118A2 Sound damping composition |
| 04/05/1989 | EP0309776A2 Covering for construction elements and its manufacturing process |
| 04/04/1989 | US4819215 Electric signal transfer element |
| 04/04/1989 | US4818603 Thermal-acoustic insulation composite panel |
| 04/04/1989 | US4817757 Wall covering for absorbing sound waves in a liquid medium |
| 04/04/1989 | US4817755 Suspended structure for coupling seismic sources to the walls of a borehole |
| 04/04/1989 | CA1252053A1 Acoustically porous building materials |
| 03/29/1989 | EP0308899A2 Ultrasonic transducer with astigmatic transmission-reception characteristics |
| 03/29/1989 | EP0308644A2 Focusing ultrasonic transducer |
| 03/28/1989 | US4817016 Non-destructive evaluation means and method of flaw reconstruction utilizing an ultrasonic multi-viewing transducer data acquistion system |
| 03/23/1989 | DE3730931A1 Soundproofing element for motor vehicles |
| 03/22/1989 | EP0307799A2 Damping body for ultrasonic pulse transducers |
| 03/21/1989 | US4815139 Active acoustic attenuation system for higher order mode non-uniform sound field in a duct |
| 03/21/1989 | US4815050 Complaint tube low frequency sound attenuator |
| 03/21/1989 | US4815049 Disappearing baffle for sonar arrays |
| 03/21/1989 | US4815048 Dual axis transducer |
| 03/21/1989 | US4815047 Synthetic focus annular array transducer |
| 03/21/1989 | US4813402 Coupling member for a shock wave therapy device |
| 03/21/1989 | CA1251552A1 Non-coherent frequency source and sector scanning apparatus for ultrasonic imaging system using a liquid crystal detector cell |
| 03/16/1989 | DE3729765A1 Sound absorption system |
| 03/14/1989 | US4811816 Symmetric double phonic diaphragm volume-enhancing device |
| 03/14/1989 | US4811740 Ultrasonic diagnosis apparatus capable of probe exchange |
| 03/08/1989 | EP0305519A1 Ultrasonic transducer |
| 03/08/1989 | CN1031595A Airflow noise-elimination method and apparatus |
| 03/07/1989 | US4811402 Method and apparatus for reducing acoustical distortion |
| 03/07/1989 | US4811310 Transducer mounter |
| 03/07/1989 | US4811309 Microphone probe for acoustic measurement in turbulent flow |
| 03/02/1989 | DE3728103A1 Structural element and process for the production of the same |
| 03/02/1989 | DE3727947A1 Sound-absorbing structural element and process for the production thereof |
| 03/02/1989 | DE3727692A1 Shock wave source with short focussing |
| 02/28/1989 | US4809244 Support member for pressure sensor |
| 02/28/1989 | US4809184 Method and apparatus for fully digital beam formation in a phased array coherent imaging system |
| 02/28/1989 | US4807634 Mechanical type ultrasonic scanner |
| 02/22/1989 | EP0303948A2 Deformable textile products for lining noise-polluted spaces |
| 02/21/1989 | US4805733 Active silencer |
| 02/21/1989 | US4805728 For a musical performer |
| 02/21/1989 | US4805724 Sound-absorbing panel |
| 02/16/1989 | DE3825626A1 Vibratory arrangement for damping a vibrating wall |
| 02/14/1989 | US4804131 Process of use of an electroacoustical vibrator device and plant for carrying out this process |
| 02/14/1989 | US4803995 Ultrasonic lithotrity apparatus |
| 02/14/1989 | CA1250042A1 Ultrasonic reflex transmission imaging method and apparatus |
| 02/09/1989 | DE3724991A1 Device for stimulating acoustic stimuli |
| 02/08/1989 | EP0302554A1 Apodization of ultrasound transmission |
| 02/08/1989 | EP0302258A1 Signalling horn |
| 02/07/1989 | US4802458 Dual function ultrasonic transducer probes |
| 02/07/1989 | CA1249877A1 Ultrasonic apparatus, system and method |
| 02/02/1989 | DE3724682A1 Schalldaemm- und absorptionselement zur auskleidung des innenraums von kraftfahrzeugen Sound insulation and absorption element to the lining, interiors of motor vehicles |
| 01/31/1989 | US4802227 Noise reduction processing arrangement for microphone arrays |
| 01/31/1989 | US4802148 Side-looking sonar apparatus |
| 01/26/1989 | WO1989000800A1 Silencer for playback sound field |
| 01/26/1989 | WO1989000746A1 Improvements relating to noise reduction systems |
| 01/25/1989 | EP0300315A1 Shock wave generator for an apparatus for non-contact disintegration of concrements, present in a body |
| 01/24/1989 | US4800317 Ultrasonic transducer method and apparatus |
| 01/24/1989 | US4800316 Backing material for the ultrasonic transducer |
| 01/19/1989 | DE3820996A1 Sound absorbing device |
| 01/17/1989 | US4799264 Speaker system |
| 01/12/1989 | WO1989000026A1 Ultrasonic diagnostic apparatus |
| 01/12/1989 | DE3821939A1 Sound-deadening (sound-absorbing) device |
| 01/11/1989 | EP0298334A1 Shock wave generator |
| 01/11/1989 | CN1030302A Ultrasonic echograph utilizing at least one piezoelectric transducer with an associated random phase screen and method of scanning an object by means of such an echograph |
| 01/10/1989 | US4796974 Device for focusing electromagnetic waves or sound |
| 01/10/1989 | US4796726 Ultrasonic rangefinder |
| 01/10/1989 | CA1248620A1 Scanning acoustic microscope |
| 01/05/1989 | DE3721183A1 Oscillating ultrasonic applicator having a connecting-rod drive |
| 01/03/1989 | US4796237 Method for acoustic reverberation removal |
| 01/03/1989 | US4796236 Architecture for ultrasonic imaging |
| 01/03/1989 | US4796009 Electronic warning apparatus |
| 01/03/1989 | US4795935 Ultrasonic transducer |
| 01/03/1989 | US4794929 Echography probe and echograph fitted, with a probe of this type |
| 12/29/1988 | DE3814367A1 Method and device for the ultrasonic material testing of workpieces |
| 12/29/1988 | DE3719146A1 Ultrasonic sensor |
| 12/28/1988 | EP0296933A1 Method and means for seismic prospection using induced waves artificially generated in a well |
| 12/27/1988 | US4794575 Submarine launched sea-state buoy (SLSSB) |
| 12/27/1988 | US4794574 Broad band interference sonar having compressed emission |
| 12/27/1988 | US4793274 Method and apparatus for conducting geophysical exploration from a marine vessel |
| 12/21/1988 | EP0295925A2 Sound reduction membrane |
| 12/21/1988 | EP0295521A1 Freely movable ultrasonic transducer, especially for hip diagnosis |
| 12/20/1988 | US4792013 Vocal muffler |
| 12/15/1988 | WO1988009895A1 Ultrasonic testing system with variable angle transducer mount |
| 12/15/1988 | DE3709080A1 Multilayer cover element for oscillating surfaces |
| 12/13/1988 | US4791430 Ultrasonic antenna |
| 12/07/1988 | EP0293996A1 Ultrasonic echographic apparatus using at least one piezoelectric transducer in association with a phase-randomizing screen, and method for the examination of a medium by means of such an echographic apparatus |
| 12/07/1988 | EP0293773A1 Method and apparatus for high speed digital phased array coherent imaging system |
| 12/07/1988 | CN87107712A Machanical synchronous tracking noise-reducing device |
| 12/06/1988 | US4790020 Horn type loudspeakers |
| 12/06/1988 | US4789971 Broadband, acoustically transparent, nonresonant PVDF hydrophone |
| 12/06/1988 | US4789586 Vibration damping metal panels |
| 12/01/1988 | WO1988009548A1 Delay quantization technique to reduce steering errors in digital beamformers |
| 11/30/1988 | EP0293004A2 Ultrasonic surveillance device |
| 11/30/1988 | EP0292877A1 Wall covering absorbing acoustic waves in a liquid medium |
| 11/30/1988 | EP0198731B1 Ultrasonic-wave transducer to get in contact with a high-temperature wall, and its use |
| 11/29/1988 | US4788099 Vibration-damping material with excellent workability |