| 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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| 08/17/1994 | EP0610859A1 Vibration-damping section, its manufacturing method, and structural member for transport vehicle |
| 08/17/1994 | EP0610434A1 Method for reducing damage to and lesions of surfaces in the propagation field of high-energy pressure waves, using an agent for reducing bubble formation caused by the pressure waves, and pressure wave generating device for implementing said method |
| 08/16/1994 | US5339291 Flexible component sheet embedding operational components |
| 08/12/1994 | CA2115223A1 Active acoustic control system matching model reference |
| 08/11/1994 | DE4303921A1 Method for measuring a differential sound by subtracting a sound just emitted via a loudspeaker from a total sound |
| 08/10/1994 | EP0609846A2 Vibration/noise control system |
| 08/10/1994 | EP0609555A2 Frequency selective component and method |
| 08/09/1994 | US5337366 Active control apparatus using adaptive digital filter |
| 08/09/1994 | US5337365 Apparatus for actively reducing noise for interior of enclosed space |
| 08/04/1994 | WO1994017514A1 Therapy apparatus with variable focalization without secondary focalization |
| 08/04/1994 | WO1994017513A1 Earpiece for active noise cancelling headset |
| 08/04/1994 | WO1994017512A1 Ear defenders employing active noise control |
| 08/04/1994 | WO1994016826A1 Ultrasonic transducer array and manufacturing method thereof |
| 08/04/1994 | CA2132432A1 Adjustable focusing therapeutic apparatus with no secondary focusing |
| 08/02/1994 | US5335209 Acoustic sensor and projector module having an active baffle structure |
| 08/02/1994 | US5334338 Applying foam to carpet backing in closed mold, collapsing and consolidation, then more foaming yields soft elastic layer |
| 08/02/1994 | US5333819 Self tuning motion/vibration suppression system |
| 08/02/1994 | US5333612 Volumetric breast interogation device |
| 08/02/1994 | US5333503 Acoustic lens system |
| 08/02/1994 | US5333455 Displacement magnifier for piezoelectric element |
| 08/02/1994 | CA1331112C Hydrodynamically stabilized buoy to be suspended to a helicopter or the like |
| 07/27/1994 | EP0607946A1 Acoustical insulating web |
| 07/27/1994 | EP0607490A1 Ultrasonic probe apparatus |
| 07/26/1994 | US5333202 Multidimensional stereophonic sound reproduction system |
| 07/26/1994 | US5332061 Active vibration control system for attenuating engine generated vibrations in a vehicle |
| 07/26/1994 | US5331855 Ultrasonic inspection system |
| 07/26/1994 | CA2021676C Communication system with active noise cancellation |
| 07/26/1994 | CA1330954C Compliant tube baffle |
| 07/21/1994 | WO1994016134A1 Flexible nonwoven mat |
| 07/21/1994 | WO1994015778A1 Method and apparatus for masking the acoustic signature of vessels |
| 07/20/1994 | EP0286674B1 Sound and thermal insulation |
| 07/20/1994 | CN1089555A Composite sound-absorbing lining |
| 07/19/1994 | US5331120 Titanium alloy |
| 07/14/1994 | DE4344312A1 Ultrasonic scanner for medical diagnostics of eye or prostate |
| 07/13/1994 | EP0605756A2 Interface element for medical ultrasound transducer |
| 07/13/1994 | EP0605722A1 Received wave beam former of ultrasonic diagnosis device |
| 07/13/1994 | EP0605542A1 Noise damper with fluid flowing through it |
| 07/12/1994 | US5329587 Low-delay subband adaptive filter |
| 07/12/1994 | US5329495 Passive beamformer with low side lobes |
| 07/12/1994 | US5329202 Large area ultrasonic transducer |
| 07/12/1994 | US5328119 Tension reducer |
| 07/07/1994 | WO1994015439A2 Method of polarizing acoustic fields in particular with the aim of achieving an extremely broad, non-localized and spatial stereo effect requiring little space |
| 07/07/1994 | WO1994011953A3 Active noise cancellation system |
| 07/07/1994 | CA2152611A1 Method of polarizing acoustic fields in particular with the aim of achieving an extrelmely broad, non-localized and spatial stereo effect requiring little space |
| 07/06/1994 | CN1089016A Vibration damping system for vehicle |
| 07/05/1994 | US5327496 Communication device, apparatus, and method utilizing pseudonoise signal for acoustical echo cancellation |
| 07/05/1994 | CA2042623C Acoustic transducer |
| 06/28/1994 | US5325438 In an internal combustion engine exhaust gas system |
| 06/28/1994 | US5325437 Apparatus for reducing noise in space applicable to vehicle compartment |
| 06/23/1994 | WO1994001989A3 Device for excitation of oscillations and determination of properties of fluid mediums |
| 06/23/1994 | DE4341951A1 Interference noise damper for exhaust gas system |
| 06/23/1994 | DE4243560A1 Back-drop sound damper |
| 06/22/1994 | EP0602703A2 Method for improving signal to noise ratio |
| 06/22/1994 | EP0602535A2 Noise abatement encapsulation |
| 06/22/1994 | EP0602091A1 Muffler |
| 06/21/1994 | US5323467 Method and apparatus for sound enhancement with envelopes of multiband-passed signals feeding comb filters |
| 06/21/1994 | US5323466 Tandem transducer magnet structure |
| 06/21/1994 | US5322068 Method and apparatus for dynamically steering ultrasonic phased arrays |
| 06/16/1994 | DE4323134C1 Ultrasonic oscillator - has oversize matching body resting on support ring for acoustic dampening |
| 06/16/1994 | DE4243426A1 Acoustic absorption plate material - has sand grains with a bonding agent and embedded tubes to carry a fluid medium for heating or cooling applications |
| 06/16/1994 | DE4242378A1 Impact type matrix print head - has cross-sectional steps in flat plate parts of housing to reduce acoustic noise emissions |
| 06/16/1994 | DE4242332A1 Noise reflectors for aircraft of all types and sizes - are of dish shape and attached inclined upwards on side underneath engine to send sounds into sky and may have holes for water run=off |
| 06/16/1994 | DE4241554A1 Introduction of noise damping plug into hollow vehicle bodywork and process equipment - involves short burst of air pressure to compress foam plug and inject into hollow cavity with smaller dimensions where re-expansion occurs |
| 06/16/1994 | DE4239229A1 Holder for ultrasonic test head for non=destructive material test or thickness measurement - has housing with coupling arrangement enabling easy linking of holders |
| 06/15/1994 | EP0601934A1 Improvements to methods and devices used to protect from external noises a given volume, preferably located inside a room |
| 06/15/1994 | EP0580579A4 Improvements in and relating to transmission line loudspeakers |
| 06/15/1994 | EP0533916A4 Active noise control |
| 06/14/1994 | US5321759 Active noise control system for attenuating engine generated noise |
| 06/14/1994 | US5321388 High efficiency phase and amplitude matched multiple horn electronic siren |
| 06/14/1994 | US5319938 Acoustic resonator having mode-alignment-canceled harmonics |
| 06/12/1994 | CA2110763A1 Improvements to the processes and devices for protecting a given volume, preferably arranged inside a room, from outside noises |
| 06/09/1994 | WO1994012873A1 Ultrasonic transmitter with a damping body for high working temperatures |
| 06/09/1994 | WO1994012105A1 Contact medium for probe of ultrasonic diagnostic apparatus |
| 06/09/1994 | WO1994009480A3 Adaptive control system |
| 06/09/1994 | DE4317828C1 Air noise absorbing shaped part - comprises at least two chambers arranged adjacently in series in direction of incoming vibrations |
| 06/09/1994 | DE4241515C1 Sound-absorbing housing cladding for machine - comprises air noise-damping layer of fibres which in outer edge area are compressed and adhered to pore-free support frame |
| 06/09/1994 | DE4240296A1 Prodn. of air noise absorber - involves use of closed cell soft foam formed firstly as flat structure and then adhered with adhesive to support part |
| 06/08/1994 | EP0600702A1 Apparatus for generating a trigger signal used to transmit an ultrasonic wave |
| 06/08/1994 | EP0518993B1 Method and apparatus for the transmission of an acoustic signal in a photoacoustic cell |
| 06/08/1994 | CN2168316Y Noice-damping talk-listen type earcover |
| 06/07/1994 | US5319715 Noise sound controller |
| 06/07/1994 | US5319612 Unfolding cylindrical sonar |
| 06/07/1994 | US5319165 Dual bandpass secondary source |
| 06/07/1994 | US5318035 Crosslinked molding, sound medium using it and ultrasonic coupler |
| 06/01/1994 | EP0598715A1 Ultrasonic transducer |
| 05/31/1994 | US5317113 Anechoic structural elements and chamber |
| 05/31/1994 | US5316423 Acoustic isolation fastener and method for attachment |
| 05/31/1994 | US5315820 Composite structural component |
| 05/26/1994 | WO1994011953A2 Active noise cancellation system |
| 05/26/1994 | WO1994011860A1 Composite sound damping member |
| 05/26/1994 | WO1994011222A1 Moulded article designed to absorb airborne sound |
| 05/25/1994 | EP0598120A1 Noise control apparatus |
| 05/25/1994 | EP0541667B1 Endoscopic probe |
| 05/25/1994 | EP0533680A4 Noise suppression system |
| 05/24/1994 | US5315661 Active high transmission loss panel |
| 05/24/1994 | US5315565 Resonance oscillator |
| 05/24/1994 | US5315203 Apparatus for passive damping of a structure |
| 05/24/1994 | CA1329834C Selective active cancellation system for repetitive phenomena |
| 05/19/1994 | DE4238176A1 Intra-luminal ultrasonic probe for clinical echography of body cavities - has transducer mounted on rocker subject to variable tilt by opposite movements of jointed plungers at end of catheter |
| 05/18/1994 | EP0597180A1 Acoustic damping element |