197138 ⎘
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; Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators Acoustic filters ; Acoustic resonators
SYSTEMS AND METHODS FOR ATTENUATING ACOUSTIC WAVES
#2ACOUSTIC TRANSMISSION ENHANCER AND ACOUSTIC TRANSMISSION ENHANCEMENT SYSTEM
#3IMPLANTABLE AND BIODEGRADABLE SMART HYDROGEL MICROMECHANICAL RESONATORS WITH ULTRASOUND READOUT
#4ACOUSTIC RESONANCE SENSOR DEVICES FOR RADICAL SPECIES DETECTION WITH ENHANCED FILTERS
#5ACOUSTIC TRANSMISSION ENHANCER AND ACOUSTIC TRANSMISSION ENHANCEMENT SYSTEM
#6IMPLANTABLE AND BIODEGRADABLE SMART HYDROGEL MICROMECHANICAL RESONATORS WITH ULTRASOUND READOUT FOR BIOMEDICAL SENSING
#7Metamaterial Acoustic Barrier Using Vortex Generation for Internal Circulation
#8Extracting features from auditory observations with active or passive assistance of shape-based auditory modification apparatus
#9Acoustofluidic device configured for allowing resonance frequency tracking and methods therefor
#10SOUND ABSORPTION DEVICE
#11DRONE ELIMINATION MUFFLER
#12System and Method for Resonant Acoustic Fire Suppression via Linear Driver or Thermoacoustic Generation
#13SOUND ABSORBING UNIT, SOUND ABSORBING STRUCTURE, MANUFACTURING METHOD, AND DESIGN METHOD
#14Ultrasonic transducer and ultrasonic flowmeter
#15Ultrasonic probe
#16Acoustic band-pass filter assemblies, wireless blockage monitors, and related methods
#17METHOD FOR IMPROVING SOUND QUALITY OF SOUND REPRODUCTIONS OR SOUND RECORDINGS IN A ROOM
#18Systems for sound attenuation
#19Metamaterial design with perforated nozzles for acoustic noise reduction
#20SOUND ABSORBING STRUCTURE AND SOUND ABSORBING WALL
#21Apparatus for sound conversion with an acoustic filter
#22Echo canceller with variable step-size control
#23Methods and systems for real-time sound propagation estimation
#24PULSATING COMBUSTION DEVICE WITH IMPROVED ENERGY CONVERSION EFFICIENCY AND REDUCED NOISE LEVEL
#25Implantable and biodegradable smart hydrogel micromechanical resonators with ultrasound readout for biomedical sensing
#26Noise reduction assembly for auscultation of a body
#27Phononic system to achieve quantum-analogue phase-based unitary operations
#28Systems and methods for tuning propeller noise
#29Phononic quantum networks of solid-state spins with alternating and frequency-selective waveguides
#30Extracting features from auditory observations with active or passive assistance of shape-based auditory modification apparatus
#31Noise-cancelling ear plugs
#32External ear insert for hearing comprehension enhancement
#33Acoustic metamaterial units with the function of soundproof, flow passing and heat; transfer enhancement, the composite structure and the preparation methods thereof
#34Drone elimination muffler
#35ACOUSTIC LENS USING EXTRAORDINARY ACOUSTIC TRANSMISSION
#36Systems and methods for transcendental lighting applications
#37MUFFLER
#38Phononic crystal vibration isolator with inertia amplification mechanism
#39Thin film resonators
#40Three-dimensional asymmetric lattice structure for tailoring the band gaps
#41Low-frequency broadband sound source for underwater navigation and communication
#42Elastic material for coupling time-varying vibro-acoustic fields propagating through a medium
#43Noise cancelling earset having acoustic filter
#44Anisotropic media for elastic wave mode conversion, shear mode ultrasound transducer using the anisotropic media, sound insulating panel using the anisotropic media, filter for elastic wave mode conversion, ulstrasound transducer using the filter, and wave energy dissipater using the filter
#45Absorbent acoustic metamaterial
#46Acoustic resonator
#47Methods, systems, and apparatuses for acoustically separating and washing particles
#48Article For Acoustic Absorption And Composite Material Comprising The Article
#49CASE AND APPARATUS FOR IMAGE FORMATION
#50Ultrasonic microphone enclosure
#51System and a method for attenuating sound produced by a vehicle
#52COMPACT ACOUSTIC RESONATOR FOR ENCLOSED SYSTEMS
#53Adjustable sound distribution system and a vehicle
#54High speed level shifter for high voltage applications
#55Dynamically increased noise suppression based on input noise characteristics
#56Arrangement and field device of process measurements technology
#57Acoustic lens using extraordinary acoustic transmission
#58Ultrasound transducer
#59System of enabling or disabling a communication device and related methods
#60Resonator with ring-shaped chamber between an inner tube and an outer wall and with a dividing rib extending from the inner tube toward the outer wall
#61Non-linear dynamic absorber and use thereof for acoustic insulation
#62Fluidic sensor device having UV-blocking cover
#63ACOUSTIC MATCHING MATERIAL SUPPLY DEVICE, ULTRASONIC PROBE UNIT, ULTRASONIC MEASUREMENT APPARATUS, AND ULTRASONIC IMAGE DISPLAY
#64Structure for mounting resonators to duct
#65Duct mounted sound attenuating baffle with an internally suspended mass layer
#66System and method for converting passive protectors to ANR headphones or communication headsets
#67Muffler
#68Resonating gas seismic source
#69Acoustic attenuation device and methods of producing thereof
#70Noise reduction assembly for auscultation of a body
#71Modular projector for marine seismic source
#72Tunable resonance in a resonating gas seismic source
#73Anechoic cup or secondary anechoic chamber comprising metallic flake mixed with sound attenuating or absorbing materials for use with a communication device and related methods
#74Drone elimination muffler
#75Phononic metamaterials comprising atomically disordered resonators
#76Carbon-based acoustic matching layer and method for producing same
#77Resonator structure with enhanced reflection of shear and longitudinal modes of acoustic vibrations
#78External ear insert for hearing comprehension enhancement
#79Extracting features from auditory observations with active or passive assistance of shape-based auditory modification apparatus
#80Cover for image forming apparatus
#81Acoustic structure and acoustic panel
#82Acoustic device, and electronic device and image forming apparatus incorporating same
#83Acoustic device, and electronic device and image forming apparatus incorporating same
#84Life safety device with compact circumferential acoustic resonator
#85Device and image forming apparatus
#86Non-reciprocal acoustic devices based on linear or angular momentum biasing
#87Acoustic metamaterial gate
#88Method and apparatus for reducing distortion echo
#89Reduced Acoustic Coupling
#90Acoustic lens using extraordinary acoustic transmission
#91Acoustic device, and electronic device and image forming apparatus incorporating same
#92Vibration damper for reducing vibrations of a low frequency sound generator
#93Life safety device having high acoustic efficiency
#94Metamaterial
#95Broadband unidirectional ultrasound propagation
#96Passive acoustical filters with filled expansion chamber
#97Life safety device with compact circumferential acoustic resonator
#98SOUND AMPLIFICATION BOX AND SOUND AMPLIFICATION DEVICE INCLUDING THE SAME
#99Methods, systems, and computer readable media for simulating sound propagation in large scenes using equivalent sources
#100Portable positive airway pressure apparatus and method for attenuating the noise emitted therefrom
#101Temperature compensated acoustic resonator device having an interlayer
#102Temperature compensated acoustic resonator device
#103Tunable polymer-based sonic structures
#104Life safety device with folded resonant cavity for low frequency alarm tones
#105Ultrasonic transducer for a flow measuring device
#106Methods and devices for electromagnetically tuning acoustic media
#107BIFURCATION-BASED ACOUSTIC SWITCH AND RECTIFIER
#108Phononic metamaterials for vibration isolation and focusing of elastic waves
#109Earpiece with hollow elongated member having a nonlinear portion
#110Test system for evaluating feedback performance of a listening device
#111Acoustic diode
#112Acoustic resistance member and method for making the same
#113Devices and methods for acoustic shielding
#114External ear insert for hearing comprehension enhancement
#115Acoustic resonator and sound chamber
#116Method for changing ultrasound wave frequency by using the acoustic matching layer
#117Pressure-balanced electromechanical converter
#118Electro-acoustic transducer for a portable communication device
#119Sound generating apparatus, a mobile electric device and a system for generating sound
#120Method of producing thin film bulk acoustic resonator
#121Metamaterial acoustic impedance matching device for headphone-type devices
#122Acoustic absorber for bass frequencies
#123Resonator cap with integrated playing surface and amplifier
#124Acoustic absorber for bass frequencies
#125Systems and methods for tuning propeller noise