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Acoustics > Sound-modifying Means

Sound-modifying Means

Sound-modifying Means patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

04/17/14 - 20140102826 - 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...

03/06/14 - 20140060960 - Tunable polymer-based sonic structures
Tunable polymer-based sonic structures (“TuPSS”) are made up of sonic structures and polymers. The TuPSS has three general requirements: a) The sonic structure is composed of one or materials engineered to behave as a lens, filter, cloak, or dampener; b) Stimulus sensitive polymer is incorporated into the sonic structure; and...

11/28/13 - 20130313038 - Receiving device
A receiving device including a casing, a receiver, and a sound guiding module is provided. The casing has a sound-out hole. The receiver is disposed within the casing, and a center of the receiver deviates from the sound-out hole. The sound guiding module is disposed between the receiver and the...

10/17/13 - 20130270033 - Play furniture
An article of acoustical furniture for use in a child day care center that lowers decibels, minimizes, absorbs, deflects, or aims sound, is suitable for use by all ages, is washable, stable, sturdy and safe for use by children....

09/12/13 - 20130233641 - Light efficient acoustically transmissive front projection screens
A front projection screen is provided having a first portion of material and a second portion of material. The first and second portions of material may have an undercut edge profile, and the first and second portions of material may be perforated, such that the perforations allow the first and...

08/29/13 - 20130220729 - Method and apparatus for wave generation and detection using tensegrity structures
A tensegrity apparatus having multiple tensegrity units for the transmission of solitary waves with adjustable profiles into a material or structure, and the detection of such waves from a material or structure....

08/22/13 - 20130213729 - Monolithic acoustically-treated composite structures and methods for fabricating the same
Monolithic acoustically-treated composite structures and methods for fabricating the same are provided. A monolithic acoustically-treated composite structure comprises an internal frame assembly comprising a unitary composite frame structure and at least one acoustic panel assembly. The unitary composite frame structure defines a shape of the monolithic acoustically-treated composite structure to...

06/27/13 - 20130161123 - Standardised insulation device for an aircraft and processes of making and using thereof
An insulation device for an aircraft, comprising a blanket comprising a layer of insulation filling enclosed in a cover and having provision areas for the passage of aircraft components, these areas being devoid of insulation filling and being formed by a surface junction of two opposite faces of the cover...

06/13/13 - 20130146388 - Acoustic waveguide assemblies
Acoustic waveguides are disclosed for mounting to a conduit. The acoustic waveguides provide a mounting area that minimizes the effect of the mount on the acoustic wave traveling through the waveguide while providing an effective seal, even under high pressure conditions....

06/13/13 - 20130146389 - Speaker
A speaker, including: a casing having a baffle plate; and a sound source fixed to the baffle plate of the casing, wherein at least one cutout is formed in the baffle plate, the at least one cutout having a configuration in which a width of the at least one cutout...

05/23/13 - 20130126264 - Ferrite sintered body and noise filter including the same
A ferrite sintered body having an improved strength and a noise filter including the same are provided. A ferrite sintered body includes 1 mol % to 10 mol % Cu on CuO basis, a spinel-structured crystal containing Fe, Zn, Ni, Cu and O as a main phase, and Cu compound...

05/09/13 - 20130112496 - Methods and devices for electromagnetically tuning acoustic media
An acoustic material can be electromagnetically tuned to produce alterations in its acoustical properties without physical contact. The acoustic material should contain a periodic structure and a medium that has acousto-elastical properties that can be altered through the application of electromagnetic radiation. Changes in volumetric properties such as density result...

05/02/13 - 20130105243 - Acoustic reflectors
An acoustic reflector primarily for underwater use comprising a shell surrounding a core in which holes are provided in the shell to allow air and water freely to enter and leave the interior of the shell when the reflector is immersed in water. Various embodiments are described including the use...

03/14/13 - 20130062139 - Audio apparatus
An audio apparatus includes a housing including a space which is enclosed at least one pair of opposite surfaces, and an open pipe including a first open end and a second open end positioned in the space. The open pipe has a pipe length of integral multiple of a substantially...

02/14/13 - 20130037343 - Adjustable stand suitable for supporting an audio speaker
The invention relates to an adjustable stand suitable for supporting an audio speaker and comprising: a base having an upright bearing; a tilt barrel mounted on the upright bearing for adjustable rotation about its own axis; two supporting rods, each supporting rod being mounted on the tilt barrel generally perpendicular...

07/26/12 - 20120186904 - acoustic diode
An acoustic diode includes a phononic crystal medium, a nonlinear acoustic medium, a aluminum tubes contain the phononic crystal medium and the nonlinear acoustic medium. The phononic crystal medium is fabricated by alternately laminating a water layers and a glass layers in a periodic manner....

08/11/11 - 20110192675 - Baffle
A baffle is provided that includes at least one carrier and a sealer disposed in a recess. When placed in a cavity, such as a vehicle cavity, sealer also expands into the cavity to seal the cavity. Baffle can be modified by including an insert within carrier to increase the...

05/05/11 - 20110100745 - Tunable acoustic relfector
An acoustic reflector suitable for use as a reflective target for navigational aids and for location and re-location applications. The acoustic reflector comprises a shell arranged to surround a solid core. The shell is adapted to transmit acoustic waves incident thereon into the core. Within the core the acoustic waves...

02/10/11 - 20110031062 - Device for damping and scattering hydrosound in a liquid
A device for damping and scattering hydrosound and wave motions in water includes a plurality of envelope bodies, each enclosing a gas and each spaced at a distance from one another and surrounded by the water, wherein the device is configured to receive water flowing through it in a direction...

12/16/10 - 20100314193 - Membrane stiffening through ribbing for engine sound transmission device
Disclosed is an engine sound transmission device for a motor vehicle. The device includes a membrane that is selectively tuned by the addition of countermeasures provided on the membrane to selectively stiffen portions of the membrane so to attenuate undesired frequency components. The membrane countermeasures result in improved tuning of...

12/02/10 - 20100300798 - Energy absorbing composition and impact and sound absorbing applications thereof
A substantially non-elastic incompressible composition, which substantially does not quickly self-level under standard operating conditions, includes: a suspending agent which reacts substantially as a solid when subjected to forces below a critical force, and which becomes substantially flowable when subjected to forces above said critical force; ceramic microparticulates dispersed within...

10/28/10 - 20100270101 - Pneumatic tire with noise damper
A pneumatic tire with a noise damper made of a spongelike multi-cellular material is disclosed. The noise damper is divided into small dampers to improve the high-speed durability of the tire. The noise damper is provided with a water-impermeable outer coating to prevent water from infiltrating into the spongelike multi-cellular...

10/21/10 - 20100263963 - Transmitted sound control apparatus
Wall partitioning between outside and inside of a room has an opening portion closed with a film. Sound insulating plate, comprising a lamination of a sound reflecting plate and a sound absorbing member, is supported in opposed relation to the opening portion and at an interval from the opening portion....

08/19/10 - 20100206660 - Water-proof sound-transmitting membrane, method for producing water-proof sound-transmitting membrane, and electrical appliance using the membrane
A water-proof sound-transmitting membrane 10 includes a polytetrafluoroethylene porous membrane 1 and has a surface density of 1 to 20 g/m2. The polytetrafluoroethylene porous membrane 1 includes a first porous layer 1a, and a second porous layer 1b stacked on and integrated with the first porous layer 1a by a...

11/26/09 - 20090288910 - Method and system for enhanced high intensity acoustic waves application
According to the invention a method (and corresponding system) of enhancing application of high intensity acoustic waves is provided, wherein acoustic waves, e.g. ultrasound, and a gaseous medium, e.g. steam, coincide at a treatment zone. This is achieved by a combination of one or more high intensity acoustic generators and/or...

09/10/09 - 20090223738 - Sound absorbing structure and vehicle component having sound absorption property
A sound absorbing structure is constituted of a housing and a vibration member. The vibration member composed of a synthetic resin having elasticity is constituted of a first member and a second member whose surface density is smaller than the surface density of the first member, wherein the first member...

07/23/09 - 20090183942 - Sound diffuser
A sound diffuser includes a front plate defining a plurality of sound exit holes. An outer frustoconical wall extends from the front plate, the outer frustoconical wall decreasing in diameter from the front plate. An inner frustoconical wall extends from the outer frustoconical wall toward the front plate, the inner...

03/12/09 - 20090065292 - Low noise fuel injection pump
A fuel pump assembly has a bushing defining a pumping chamber, a plunger, a cam follower piece, and a compliance device for absorbing noise by increasing either or both of a hydraulic and/or a mechanical compliance of the fuel pump assembly. The compliance device may includes a spring washer or...