| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 181296000 | Methods | 9 |
| 20080245609 | Method for Optimizing Acoustic Comfort in a Mobile Vehicle Passenger Compartment - A method for optimizing sound and vibration comfort in a mobile passenger compartment, the method applied by a design team to carry out overall design of the passenger compartment and/or by at least one equipment supplier to carry out design of a portion of the passenger compartment. The method establishes target values to be achieved for well-identified comfort indices, defines requirements and input data relating to plural equipment suppliers to obtain a totality of information relating to the passenger compartment, estimates values of the comfort indices and compares them with the target values, and then modifies individually or in combination the input data to correlate them with the target values. | 10-09-2008 |
| 20100059313 | LAYOUT STRUCTURE AND METHOD FOR REDUCING AUDIBLE NOISE GENERATED BY FLEXIBLE PRINTED CIRCUIT - A layout structure and a method for reducing audible noise generated by a flexible printed circuit are provided. The layout structure includes a flexible printed circuit and a piezoelectric element. The flexible printed circuit is disposed with respect to an axis. When an alternating voltage/current is applied across the piezoelectric element, the piezoelectric element expands and contracts alternately. The piezoelectric element is located on the flexible printed circuit, and an angle between the axis and a side of the piezoelectric element is less than 90 degrees. | 03-11-2010 |
| 20110000741 | Process for Audible Acoustic Frequency Management in Gas Flow Systems - A sound insulation process comprises (a) providing at least one sound barrier comprising at least one composite resonator element; and (b) placing the at least one sound barrier in at least one gas stream that is at least partially enclosed. | 01-06-2011 |
| 20110017545 | Sound Field Controller - A region of air is manipulated to reflect, absorb, or redirect sound energy to prevent the sound energy from reaching a listener separated from the sound source by the region of air. The region of air may be manipulated by directing ultrasonic sound waves with a sound pressure level of at least 140 decibels at the region of air. | 01-27-2011 |
| 20110048850 | ACOUSTIC COMPOSITE - An acoustic composite comprises a flow resistive substrate having a solid acoustic barrier material bonded to at least a portion of a major surface of the flow resistive substrate; wherein the acoustic barrier material has a density greater than about 1 g/cm3 and the acoustic composite has a porosity between about 0.002% and about 50%. | 03-03-2011 |
| 20110083925 | METHOD AND APPARATUS FOR THE REDUCTION OF SOUND - A method and apparatus for the reduction of sound travelling in a wave-guide in the air above the ground is presented, comprising the provision below the ground of at least a top layer which, at the interface of the top layer and air, has an acoustic impedance which substantially matches the acoustic impedance of the air. Also a cylindrical structure with holes can be used. The method and apparatus may be used for the reduction of aircraft sounds, especially in the range of 15 Hz to 40 Hz, during the first part of take-off, wherein said layer(s) below the ground are provided in a range starting at a lateral side of the runway and extending until at least 100 meters, preferably until at least 300 meters and more preferably until at least 500 meters, from the runway. | 04-14-2011 |
| 20130112499 | ACOUSTIC COMPOSITE - An acoustic composite containing at least a first acoustically coupled non-woven composite and a second acoustically coupled non-woven composite, each acoustically coupled non-woven composite containing a non-woven layer and a facing layer. The non-woven layer contains a plurality of binder fibers and a plurality of bulking fibers and has a binder zone and a bulking zone. The facing layer of the second acoustically coupled non-woven composite is adjacent the second surface of the non-woven layer of the first acoustically coupled non-woven composite. | 05-09-2013 |
| 20140284139 | DEVICE FOR DAMPING AND SCATTERING HYDROSOUND IN A LIQUID - A device is provided for damping hydrosound in liquid emitted from a sound-emitting body in the liquid. The device includes a plurality of envelope bodies distributed in the liquid in an area of the hydrosound-emitting body and at a distance from each other. A material, diameter and pressure of each envelope body is configured such that a natural frequency of the envelope body corresponds to an emitted frequency range of the hydrosound so as to dampen the hydrosound. The device also includes at least one mass body disposed in the liquid. The envelope bodies are connected to the mass bodies so as to prevent the envelope bodies from rising up in the liquid. | 09-25-2014 |
| 20150314738 | MANUFACTURING METHOD OF HIGHLY HEAT-RESISTANT SOUND ABSORBING AND INSULATING MATERIALS - The present invention relates to a method for manufacturing a substantially improved heat-resistant sound absorbing and insulating material. method includes: beating and mixing a fiber material comprising a heat-resistant fiber; forming a web from the beaten and mixed fiber material; stacking the formed web; forming a nonwoven fabric by needle punching as moving a needle up and down through the stacked web; forming a binder-impregnated nonwoven fabric by immersing the nonwoven fabric in a binder solution; and removing a solvent from the binder-impregnated nonwoven fabric. | 11-05-2015 |
