| 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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| 03/03/2004 | CN1140226C Full-digital B-ultrasonic wave beam synthesizer |
| 03/02/2004 | US6700976 Noise canceler system with adaptive cross-talk filters |
| 03/02/2004 | US6700075 Reduced crosstalk ultrasonic piezo film array on a printed circuit board |
| 03/02/2004 | US6698484 Method for reducing core crush |
| 02/26/2004 | WO2004017301A1 Device and method for active soundproofing, and power unit for aeroplanes |
| 02/26/2004 | WO2004017300A1 Acoustic system |
| 02/26/2004 | WO2004016872A1 An acoustic panel and a method of manufacturing acoustic panels |
| 02/26/2004 | US20040037431 Active noise control system with modified spectral shaping path |
| 02/26/2004 | US20040037430 Linear independence method for noninvasive on-line system identification/secondary path modeling for filtered-X LMS-based active noise control systems |
| 02/26/2004 | US20040037429 Stethoscope |
| 02/26/2004 | US20040037166 Method and apparatus for forming a reception beam |
| 02/26/2004 | DE20314758U1 Container for collection of used glass bottles and jars comprises an internal sound insulating layer and a wall element protecting this layer against mechanical and chemical damage |
| 02/26/2004 | DE10237721A1 Shock-absorbing system for ultrasonic sensor, comprises mounting and flexible decoupler which is fitted between two, at least one surface on decoupler, mounting or sensor being roughened |
| 02/26/2004 | DE10237720A1 Shock-absorbing system for ultrasonic sensor in car parking aids comprises mounting and flexible decoupler fitted between two, gap being left which fills when it is deformed |
| 02/26/2004 | DE10237366A1 Noise insulating material (1) especially for automobiles, prepared from rubber matrix containing gas-filled hollow bodies and PUR-plastic useful for noise damping in automobiles |
| 02/26/2004 | CA2438732A1 Active reduction of tool borne noise in a sonic logging tool |
| 02/25/2004 | EP1391875A1 Ultrasonic imaging method and apparatus |
| 02/25/2004 | EP1222735B1 Interface acoustic wave filter, especially for wireless connections |
| 02/25/2004 | EP1202874B1 Component with high absorbing effect over a wide frequency range |
| 02/25/2004 | EP1017936B1 Silencer with a bypass resonator |
| 02/25/2004 | CN2604758Y Acoustic board |
| 02/24/2004 | US6695783 Multiline ultrasound beamformers |
| 02/19/2004 | WO2004015428A2 Combined speed and depth transducer for marine applications |
| 02/19/2004 | WO2003082631A3 Floor mats having peripheral apertures with acoustic absorbing material |
| 02/19/2004 | US20040034306 Small ultrasound transducers |
| 02/19/2004 | DE20312883U1 Sound-absorbing awning for installation above entrance to building is made of surface layers of plastics foil separated by thick layer of absorbent packing consisting of fibrous material or tubes |
| 02/19/2004 | DE10208501B4 Ultraschallprüfkopf Ultrasonic probe |
| 02/18/2004 | CN1476598A Acoustic imaging system with non-focusing lens |
| 02/17/2004 | CA2313921C Sound and thermal insulating non-woven synthetic sheet material |
| 02/12/2004 | WO2004014055A1 Echo canceling in a speech processing system |
| 02/12/2004 | WO2004013427A1 Sound-absorbing structure and sound-absorbing unit |
| 02/12/2004 | WO2004013396A1 Acoustical insulation material containing fine thermoplastic fibers |
| 02/12/2004 | WO2004013395A1 Nonwoven containing acoustical insulation laminate |
| 02/12/2004 | WO2004012952A2 Sound-damping profiled member |
| 02/12/2004 | WO2004012931A2 Acoustical insulation laminate with polyolefin layer and process for making |
| 02/12/2004 | WO2004012889A1 Low porosity facings for acoustic applications |
| 02/12/2004 | WO2003069595A8 Sound absorbing material including a plurality of pieces with pores |
| 02/12/2004 | US20040030664 Neural net controller for noise and vibration reduction |
| 02/12/2004 | US20040025755 Speaker-provided mounting table |
| 02/12/2004 | DE19841975B4 Schallabsorbierende Platte Sound-absorbing plate |
| 02/12/2004 | DE19822582B4 Aktive Geräuschunterdrückung für lärmabstrahlende Flächen Active noise cancellation for lärmabstrahlende surfaces |
| 02/12/2004 | CA2493191A1 Low porosity facings for acoustic applications |
| 02/11/2004 | EP1388443A1 Air-conditioning and/or heating device for the passenger compartment of a motor vehicle, with at least one actuator for a hinged flap |
| 02/11/2004 | EP1060073B1 Laminate |
| 02/11/2004 | CN2602724Y Sound filter |
| 02/11/2004 | CN1138084C Wall cavity microphone turbulence shield |
| 02/10/2004 | US6690620 Sonar transducer with tuning plate and tuning fluid |
| 02/10/2004 | US6688424 Noise absorbing device and device for taking air into engine room of a construction machine |
| 02/10/2004 | US6688422 Method and apparatus for actively influencing the intake noise of an internal combustion engine |
| 02/05/2004 | WO2003031229A3 Sound attenuating material for use within vehicles and methods of making same |
| 02/05/2004 | US20040023587 Acoustical insulation laminate with polyolefin layer and process for making |
| 02/05/2004 | US20040023586 Low porosity facings for acoustic applications |
| 02/05/2004 | US20040023014 Acoustical insulation material containing fine thermoplastic fibers |
| 02/05/2004 | US20040020712 Acoustical insulation laminate with polyolefin layer and process for making |
| 02/05/2004 | DE4324004B4 Entdröhnungsbelag und Verfahren zu seiner Herstellung Entdröhnungsbelag and process for its preparation |
| 02/05/2004 | DE10232291A1 Active noise abatement appliance has housing containing chamber with opening in one wall to the side of gas flow, with deflector |
| 02/04/2004 | EP1386520A1 Electromechanical acoustic liner |
| 02/04/2004 | EP1058618B1 Sound absorbent thin-layer laminate |
| 02/04/2004 | CN1472985A Mounting table with loudspeaker |
| 02/04/2004 | CN1472725A High-efficiency paper base sound-absorbing material and preparation thereof |
| 02/04/2004 | CN1137464C Active noise depressing system and noise reducing method |
| 02/03/2004 | US6685250 Noise insulation structure |
| 02/03/2004 | US6684977 Speaker retention assembly for an active noise control system |
| 02/03/2004 | US6684976 Headset ear seal |
| 01/29/2004 | WO2004010627A1 Method and system for masking speech |
| 01/29/2004 | WO2004009924A1 Composite material for acoustic damping |
| 01/29/2004 | WO2004009007A1 A linear independent method for noninvasive online secondary path modeling |
| 01/29/2004 | US20040019479 Method and system for masking speech |
| 01/29/2004 | US20040018086 Process and apparatus for noise reduction in multi-engine propeller-driven aircraft |
| 01/29/2004 | US20040016595 Multi-component acoustically resistive layer for acoutical attenuation panel and panel thus obtained |
| 01/29/2004 | DE19910169B4 Verfahren zur aktiven Geräuschminderung in Strömungskanälen von Turbomaschinen Method for active noise reduction in the flow channels of turbomachinery |
| 01/29/2004 | DE10328827A1 Sende- und Empfangsisolation für ein Ultraschallabtasten und Verfahren der Verwendung Transmit and receive isolation for an Ultraschallabtasten and methods of use |
| 01/29/2004 | DE10231780A1 Vorrichtung zur Durchführung seismischer Untersuchungen Apparatus for carrying out seismic surveys |
| 01/29/2004 | DE10231238A1 Geräuschdämpfungsvorrichtung Noise attenuation device |
| 01/29/2004 | DE10228830A1 Balg zur Ankopplung einer Quelle akustischer Wellen an ein Lebewesen Bellows for coupling a source of acoustic waves to a subject |
| 01/29/2004 | DE10202995B4 Rotorblatt für eine Windkraftanlage mit einer Dämpfereinrichtung Rotor blade for a wind turbine with a damper device |
| 01/29/2004 | DE10153638B4 Ultraschallsensor zur Entfernungsmessung Ultrasound sensor for measuring distance |
| 01/27/2004 | US6683960 Active noise control apparatus |
| 01/27/2004 | US6681889 Exhaust muffler for a fuel-operated heating device |
| 01/27/2004 | CA2110998C Mineral fibres capable of dissolving in a physiological medium |
| 01/22/2004 | WO2004008432A1 Method for the acoustic adaptation of an active element of an electroacoustic transducer for emitting and receiving ultrasound waves, and device for emitting and receiving ultrasound waves |
| 01/22/2004 | US20040013281 Sound masking and paging system |
| 01/22/2004 | US20040013273 Calibration for an active noise control system |
| 01/22/2004 | US20040011340 Noise control |
| 01/22/2004 | US20040011011 Air filter for an internal combustion engine |
| 01/22/2004 | DE10328840A1 Mehrdimensionale Transduceranordnungen und Verfahren zu deren Herstellung Multi-dimensional transducer assemblies, and methods for their preparation |
| 01/22/2004 | DE10327322A1 Aktives Geräuschdämpfungssystem mit Hupenton-Funktion Active noise attenuation system with horn tone function |
| 01/22/2004 | DE10231402A1 Verfahren zur akustischen Anpassung eines aktiven Elements eines elektroakustischen Wandlers zum Aussenden und Empfangen von Ultraschallwellen A method for acoustic matching of an active element of an electroacoustic transducer for emitting and receiving ultrasonic waves |
| 01/21/2004 | EP1382943A1 Acoustic matching layer, ultrasonic transmitter-receiver, their manufacturing methods, and ultrasonic flowmeter |
| 01/21/2004 | EP1382031A1 Silencer |
| 01/21/2004 | CN1135753C Adaptive noise cancelling arrangement, noise reduction system and transceiver |
| 01/20/2004 | US6680349 Organohybrid-based damping material, method for producing the same, and damping improver for damping material |
| 01/20/2004 | US6679121 Blade vibration test apparatus and method |
| 01/15/2004 | WO2004006621A1 Single and multiple reflection wave guide |
| 01/15/2004 | WO2004005636A1 Sound-absorbing material |
| 01/15/2004 | WO2003095267A3 Sound absorbing panel for a vehicle and its method of manufacture |
| 01/15/2004 | DE10229524A1 Schallisolierender Bodenbelag und Verfahren zu dessen Herstellung Sound-insulating floor covering and process for its preparation |
| 01/14/2004 | EP1381025A2 Sound damping device having a Helmholtz resonator for installations with pulsating gas flows |
| 01/14/2004 | EP1380699A2 Sound absorbing panel |
| 01/14/2004 | EP1380027A1 Sound attenuation panel comprising a resistive layer with reinforced structural component |