Patents
Sitemap › G10 - Musical instruments; Acoustics › G10K - Sound-producing devices; methods or devices for protecting against, or for damping, noise or other acoustic waves in general; Acoustics not otherwise provided 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
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)
11/1999
11/30/1999US5992077 Nose cone and method for acoustically shielding an underwater vehicle sonar array
11/30/1999CA2106338C Noise controller
11/25/1999DE19822712A1 Sound damping element for circulating air flows with widely varying air moisture and temperature
11/25/1999DE19822582A1 Aktive Geräuschunterdrückung für lärmabstrahlende Flächen Active noise cancellation for lärmabstrahlende surfaces
11/25/1999DE19821532A1 Lower cost, heat and noise absorbing shroud, manufacturing method and use of shroud in an engine vehicle compartment
11/24/1999EP0959453A2 Active noise cancellation system for noise-emitting surfaces
11/24/1999EP0959368A1 Bandwidth sampling technique for digital focusing in array imaging systems
11/24/1999EP0794732A4 Acoustic imaging and doppler catheters and guidewires
11/24/1999CN1236466A Compact horn speaker
11/24/1999CN1236083A Silencer and air conditioner
11/23/1999US5991418 Off-line path modeling circuitry and method for off-line feedback path modeling and off-line secondary path modeling
11/18/1999WO1999059378A1 High power ultrasonic transducer
11/18/1999WO1999058854A1 Tubular ultrasonic transducer
11/18/1999WO1999058833A1 Heat and sound insulating shroud for the engine compartment of motor vehicles
11/18/1999DE19820419A1 Ultraschallwandler Ultrasonic transducer
11/18/1999DE19816092A1 Volume-altering resonator component for sound damping
11/18/1999CA2330372A1 Tubular ultrasonic transducer
11/18/1999CA2330314A1 High power ultrasonic transducer
11/17/1999EP0956611A2 Multi-dimensional beamforming device
11/17/1999EP0884974A4 Noise-reducing stethoscope
11/17/1999CN1235688A Cone reflector/coupler speaker system and method
11/17/1999CN1235578A Ultralight multifunctional sound-insulating kit
11/16/1999US5987144 Personal active noise cancellation method and device having invariant impulse response
11/16/1999US5984871 Ultrasound transducer with extended focus
11/16/1999US5984043 Magnetizable flat damping component and adhesive, especially for use in sound-deadening mats
11/11/1999WO1999057939A1 Transducer backing material and method of application
11/11/1999WO1999057712A1 Method of applying a matching layer to a transducer
11/11/1999WO1999057526A2 Ultrasonic transducer
11/11/1999WO1999057073A1 Mineral wool composition
11/11/1999WO1999056829A1 Ultrasound bandages
11/11/1999DE19821067C1 Spring plate type resonator used in e.g. ventilation ducts for damping low frequency noise
11/11/1999DE19818925A1 Electrical communication device for audio signals, e.g. Speech signals
11/11/1999CA2330920A1 Transducer backing material and method of application
11/11/1999CA2330657A1 Method of applying a matching layer to a transducer
11/10/1999EP0636287B1 An improved adaptive resonator vibration control system
11/10/1999CN1234895A Noise cancellation and noise reduction apparatus
11/09/1999US5981046 Sound absorbing component
11/09/1999US5980461 Ultrasound imaging apparatus for medical diagnostics
11/09/1999US5979902 Cavity sealing article and method
11/09/1999US5979593 Hybrid mode-scattering/sound-absorbing segmented liner system and method
11/09/1999US5979241 Delay line for an ultrasonic probe and method of using same
11/09/1999US5979239 Ultrasonic imaging system
11/04/1999WO1999056512A1 Apparatus for the redistribution of acoustic energy
11/04/1999WO1999056498A1 Acoustic element
11/04/1999WO1999056154A1 Elastic wave generator, structure for attaching magnetostriction oscillator, and attaching method
11/04/1999WO1999055783A1 The use of dual component pur systems for producing sound-absorbing coatings
11/04/1999WO1999046958A8 Personal sound masking system
11/04/1999DE19832979C1 Exhaust noise suppresser for motor vehicle
11/04/1999DE19818892A1 Verwendung von lösemittelarmen und lösemittelfreien 2K-PUR-Systemen zur Herstellung von schalldämmenden Beschichtungen Use of low-solvent and solvent-free 2-component polyurethane systems for the production of sound-absorbing coatings
11/04/1999CA2330377A1 Acoustic element
11/03/1999EP0953964A2 Foam-molded sound-absorbing articles
11/03/1999EP0953736A2 Insert for a silencer and method for producing it
11/03/1999EP0784845A4 Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors
11/03/1999CN1046170C Device for forming acoustic beam
11/02/1999US5978824 Noise canceler
11/02/1999US5976091 Limited diffraction broadband phased array transducer with frequency controlled two dimensional aperture capability
11/02/1999US5976089 Increasing the frame rate of a phased array imaging system
11/02/1999US5975238 Plate resonator
11/02/1999US5975237 Reinforcing structure for engine nacelle acoustic panel
11/02/1999US5974891 Ultrasonic wave diagnostic apparatus with beam convergence and clock signal selection
11/02/1999US5974888 Ultrasonic angle-beam probe and method for operating the angle-beam probe
11/02/1999US5974884 Ultrasonic diagnostic apparatus and ultrasonic probe with acoustic matching layer having continuously varied acoustic impedance in the thickness direction
11/02/1999US5974757 Privacy enclosure
11/02/1999CA2159590C Improved audio reproduction system
11/02/1999CA2153585C Method and apparatus for masking the acoustic signature of vessels
10/1999
10/28/1999DE19918712A1 Operational noise attenuation system for data processing installations
10/28/1999DE19826171C1 Active noise damping method for window e.g. for automobile window
10/28/1999DE19818811A1 Schallabsorbierender Schaumstoff-Formkörper Sound-absorbing foam moldings
10/27/1999EP0952571A2 Sound absorbing arrangement using a porous material
10/27/1999EP0951406A1 Acoustical barrier with decoupler
10/27/1999EP0773760A4 Active vibration control system for aircraft
10/27/1999CN1046058C 超声转换器阵列及其制造方法 Ultrasonic transducer array and manufacturing method thereof
10/26/1999US5974155 System and method for actively damping boom noise
10/26/1999US5971949 Ultrasound transmission apparatus and method of using same
10/26/1999US5971099 Fibers laminated to thermoplastic resin; melted by ultrasonic vibration; car engines
10/21/1999WO1999053565A2 System for canceling interferers from broadband active sonar signals using adaptive beamforming methods
10/21/1999WO1999053476A1 Active noise controller
10/21/1999WO1999053475A1 Contact element for an ultrasound sensor
10/21/1999WO1999053275A1 Device for measuring the mass of a flowing medium
10/21/1999WO1999052489A1 Articulable ultrasonic surgical apparatus
10/20/1999EP0951201A2 Audio reproducing apparatus
10/20/1999EP0727963A4 High resolution ultrasonic imaging apparatus and method
10/20/1999CN1232180A Ultrasonic comb probe array assembly
10/20/1999CA2235309A1 Active noise and vibration control, especially in aircraft
10/19/1999US5970158 Compact horn speaker
10/19/1999US5970025 Ultrasound beamformation integrated circuit and method
10/19/1999US5968629 Acoustic absorbing component and production process thereof
10/19/1999US5967875 Megaphone cup
10/19/1999US5967405 Megaphone cup
10/19/1999US5967269 Vibration damper incorporating oscillating means for generating oscillating force for relative displacement of first and second mass assemblies
10/14/1999WO1999013681B1 Aerogels, piezoelectric devices, and uses therefor
10/14/1999DE19815658A1 Vorrichtung zum Messen der Masse eines strömenden Mediums Apparatus for measuring the mass of a flowing medium
10/14/1999DE19814364A1 Flexible metal probe for intracorporeal shock wave lithotripsy
10/13/1999EP0949845A2 Qsound surround synthesis from stereo
10/13/1999EP0752074B1 Noise attenuated brake friction member
10/12/1999US5966452 Sound reduction method and system for jet engines
10/12/1999US5965851 Acoustically insulated apparatus
10/12/1999US5965044 Noise suppressor for jet engines
10/12/1999US5964327 Active control apparatus and method for vibration reduction
10/12/1999US5964266 Tire for motor-vehicle wheels provided with a tread producing a low rolling noise
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