Patents
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)
01/2002
01/30/2002EP1175669A1 Systems and methods for passive pressure-compensation for acoustic transducers
01/30/2002CN2474179Y Megaphone recreation body building apparatus
01/30/2002CN1333908A Acoustic resonator with bored open volume
01/30/2002CN1333413A Noise silencer for door or window
01/29/2002US6343129 Elastomeric dielectric polymer film sonic actuator
01/29/2002US6343127 Active noise control system for closed spaces such as aircraft cabin
01/29/2002US6342747 Wing type ultrasonic transducer
01/29/2002US6341663 Silencer with a shunt resonator
01/29/2002US6341661 Bow dome sonar
01/24/2002WO2002006643A2 A multiple layer fiber filled sound absorber and a method of manufacturing the same
01/24/2002WO2001037252A3 Method for designing a sound-absorbent wall
01/24/2002US20020009936 Method for fabricating non-fiberglass sound absorbing moldable thermoplastic structure
01/24/2002US20020009202 Electromechnical acoustic liner
01/24/2002US20020007900 Decoration, insulation
01/24/2002DE10043201C1 Miniature electroacoustic transducer for telephone handset or hearing aid has outer encapsulation housing filled with gas at reduced pressure
01/24/2002CA2413724A1 A multiple layer fiber filled sound absorber and a method of manufacturing the same
01/23/2002CN1078348C Oscillating receiver
01/22/2002US6340068 Use of a material with a high internal damping for a component of a sound-emitting machine
01/22/2002CA2107663C Active noise reduction
01/17/2002WO2002004730A1 Nonwoven for sound-insulating applications
01/17/2002US20020007118 Ultrasonic wave transducer system and ultrasonic wave transducer
01/17/2002US20020006079 Ultrasonic probe and method of manufacturing the same
01/17/2002US20020005238 Tire for motor vehicle wheels having a tread producing a low rolling noise
01/17/2002DE19500725C2 Schallabsorbierender und wärmeisolierender Formkörper Sound-absorbing and heat-insulating molded body
01/16/2002EP1172801A2 Ultrasonic probe and method of manufacturing the same
01/16/2002EP1172800A2 Sound absorbing arrangement using a porous material
01/16/2002EP1172200A1 Ceiling member for automobile interior
01/16/2002EP1171884A1 Device for reducing the noise level of a hard-disk drive
01/16/2002EP1057037B1 Knock sensor with low sensitivity dispersion
01/15/2002CA2252025C Advanced sound reduction tape
01/13/2002CA2338036A1 Ultrasonic probe and method of manufacturing the same
01/10/2002WO2002003375A1 Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same
01/10/2002WO2002002318A1 Acoustical and thermal insulator
01/10/2002WO2002002303A2 Process for forming composite insulator
01/10/2002WO2002002302A2 Process for forming a multilayer, multidensity composite insulator
01/10/2002WO2001034018A3 Use of focused ultrasound for vascular sealing
01/10/2002US20020004543 For acoustic damping in aerospace, recording applications
01/10/2002US20020003887 Active noise control system with on-line secondary path modeling
01/10/2002US20020002906 Enclosure for an air aspirating machine
01/10/2002DE10130751A1 Ultrasonic transmission involves transmitting essentially identical pulse from fewer than total number of transducer elements so all pulses arrive at focal point at essentially same time
01/09/2002EP1169526A1 Absorbent material, consisting of a porous matter with double porosity
01/08/2002US6336368 Method and apparatus for energy efficient tacking of resonant devices
01/03/2002WO2002001167A1 A mechano-electrical sensor for sensing force or vibration
01/03/2002WO2002000117A1 Two-way mechano-electrical transducer
01/03/2002WO2001069283A3 Method and apparatus for dynamic focusing of ultrasound energy
01/03/2002WO2001065538A3 Small ultrasound transducers
01/03/2002DE10126306A1 Schalldämpfungssystem mit geringem Gewicht Silencer system with low weight
01/03/2002DE10114402A1 Ultraschallempfangs-Strahlenbildungsgerät unter Verwendung von mehrstufigen Empfangsverzögerungsvorrrichtungen Ultrasonic receiving beam forming apparatus using multistage Empfangsverzögerungsvorrrichtungen
01/03/2002CA2413447A1 A mechano-electrical sensor for sensing force or vibration
01/03/2002CA2413410A1 Two-way mechano-electrical transducer
01/02/2002EP1167996A1 Method and apparatus for ultrasound imaging, particularly for three-dimensional imaging
01/02/2002EP1167646A1 Anechoic structural elements and chamber
01/02/2002EP0962013B1 Lambda/4 absorber with adjustable band width
01/02/2002EP0786131B1 Jet engine fan noise reduction system utilizing electro pneumatic transducers
12/2001
12/27/2001WO2001098434A1 Protective barrier
12/26/2001CN2468126Y Sound absorption apparatus
12/26/2001CN1328501A Corrugated multilayer metal foil insulation panels and method of making
12/25/2001US6333590 Ultrasonic transducer having laminate structure, ultrasonic probe and production method thereof
12/25/2001US6332511 Silencer assembly having single strand fiberglass acoustic pack material
12/25/2001US6332509 Noise reducer for construction equipment
12/20/2001WO2001096808A2 Bracelet for moving ultrasonic sensors along a pipe
12/20/2001WO2001096254A1 Insulating product in particular thermal containing a binder based on phenol-formaldehyde resin and method for making same
12/20/2001WO2001063594A3 Active noise reduction along the direction of propagation of the sound from the primary source
12/20/2001WO2001041499A3 Method and device for improving communication in a vehicle
12/20/2001US20010053228 Noise cancellation system for active headsets
12/20/2001DE10028771A1 Noise attenuator as film absorber with support shell all chambered for acoustic absorption and resonator function.
12/20/2001DE10015697C1 Schallwandler für Abgaspulsationen Transducer for exhaust gas pulsations
12/19/2001CN2466759Y 消音板 Silencer board
12/18/2001US6332027 Noise-absorption structures and walls constituted thereby
12/13/2001WO2001095309A1 Self-cleaning transparent sound barrier and process for producing the same
12/13/2001WO2001094772A1 Active noise cancellation arrangement with heat dissipation
12/13/2001WO2001094099A1 Rotary sonotrode for continuous large dimension welding
12/13/2001WO2001064991A3 Sound absorbing material
12/13/2001WO2001045550A3 Ultrasound transducers for imaging and therapy
12/13/2001US20010051772 Ultrasound receive beamforming apparatus using multi stage delay devices
12/13/2001US20010050993 Active noise reduction apparatus having a headset with dual stereo jacks and an electronic device having switch means
12/13/2001US20010050197 Microperforated polymeric film for sound absorption and sound absorber using same
12/13/2001US20010050196 Polystyrene sheets and films applied to polyurethane foams comprising at least one substrate layer and at least one functional layer which comprises one or more blowing agents or nucleating agents
12/13/2001DE10026568A1 Connecting piece for ultrasonic transducer housing has body divided into head part with external surface and journal with inner surface facing medium and two sealing surfaces
12/13/2001CA2411753A1 Rotary sonotrode for continuous large dimension welding
12/12/2001EP1162725A2 Linear motor
12/12/2001EP1162600A2 Active control of automotive induction noise
12/12/2001EP1162599A2 Recalibration of active noise cancellation system
12/12/2001EP1162598A2 Payload fairing with jettisonable mass acoustic suppression
12/12/2001EP1162354A2 Shroud for an air aspirating engine
12/12/2001EP1161360A1 Sound-shielding element, use thereof and method for producing the same
12/12/2001EP0941383B1 Manufacture of paper
12/12/2001EP0847527B1 Ultrasonic probes for use in harsh environments
12/11/2001US6330336 Active silencer
12/11/2001US6328513 Vibration floating washer assembly and method of attaching the same to heat insulating plate
12/06/2001WO2001093468A1 Method for transferring a message of any physical nature, for example a method for sound message transfer and system for carrying out said method (variants). method for active spatial reduction of amplitude levels of any physical variety (variants)
12/06/2001WO2001092846A2 Acustic sensor for localization
12/06/2001WO2001092618A2 Sound and thermal insulating non-woven synthetic sheet material
12/06/2001US20010049036 Compressor arrangement for the operation of a fuel cell system
12/06/2001US20010048740 Noise canceler system with adaptive cross-talk filters
12/06/2001US20010048048 Backside fitting attachment for nacelle acoustic panels
12/06/2001US20010047903 Active dipole inlet using drone speaker driver
12/06/2001DE10027350A1 Kompressoranordnung für den Betrieb eines Brennstoffzellensystems sowie ein Verfahren zur Kühlung und/oder Schallisolierung einer Kompressoranordnung Compressor arrangement for operating a fuel cell system and a method for cooling and / or sound insulation of a compressor assembly
12/06/2001DE10026584A1 Acoustic element has impedance grid with solid reflective areas, hollow vibrational areas with membrane covering layer, hollow central layer defining separation of two membrane layers
12/06/2001DE10026415A1 Abschirmvorrichtung Screening