A valve for relaying air currents in correspondence with variations of sounds

... 327,682. Holden, W., and Nachimson, G. M. Jan. 3, 1929. Magnetic instruments.-A pneumatic relay for sound reproduction comprises superposed grids moving about a fulcrum or fulcra arranged so that the fluid pressure on the grids is balanced, the grids being so mounted that, when in operation, they move in angular relationship to each other. The relay may be applied to a gramophone sound-box, or may be electrically operated, for example, by a moving armature. The relay shown in Fig. 1 comprises two grids AB. CD one of which is pivoted at its lower edge F to the air chamber G, while the other is pivoted to the first at E and connected to a fulcrum at O comprising an adjustable, slightly flexible bar H. An adjustable member K abuts against a spring L on the inner grid to maintain the grids in position, the position which the grids take up, when moved by a stylus-bar M or other operating device, being shown exaggerated in dotted lines. The air inlet and filter are indicated at P. The modified ...

Improvements in or relating to electro-acoustic instruments

... 339,596. Prisner, S., and Wender, E. Sept. 4, 1929. Loud - speakers; piezoelectric instruments. - A loud-speaker comprises a hermetically sealed flattish glass dish 1 within which is located one or a pair of piezo-electric crystals 2 with which are associated electrodes 3, the dish being filled with non-hygroscopic dry insulating oil 5 preferably under slight pressure. One wall 1 of the dish mav be made of large area and preferably of conical formation as shown, or, if desired, the dish may be located between two large area plates which may be formed integrally therewith. Alternatively, the dish may be located at the small end of an amplifying horn with which it may be integral or two horns may be provided, one on either side of the dish.

Air pump.

An air pump 1-1 is disclosed which is designed to supply air for biasing the cone of a loudspeaker. The pump is formed with a container 10 housing magnetic circuit parts 1, 2, 5, 18 which create a magnetic field through which a coil 3 and thus bobbin 4 are driven by the passage of an a.c. current. The bobbin is connected to a piston plate 11 via a rod 9. A cylindrical bellows 8 is positioned between the rim of plate 11 and the rim of the container 10. Air inlet and outlet valves, 6 and 7 respectively, are located in the plate 11. Oscillatory motion of the coil, and thus plate 11, produces a corresponding flow of air through valves 6 and 7, providing the biasing air. The device is designed to have a weight advantage over similar devices. Single and double triangular bellows pumps are also described, Figs 3 - 6 (not shown). ...

LOUDSPEAKER

SOUND-WAVE RECEIVING APPLIANCE

FLUID-OPERATED LOUDSPEAKERS

Process and device for the production of vibrations of an energy, particularly intended for the reinforcement of the sound waves

PROCEDE D'AMPLIFICATION ACOUSTIQUE FLUIDE ET HAUT PARLEUR PNEUMATIQUE DE MISE EN OEUVRE DE CE PROCEDE

Procédé d'amplification acoustique fluide résultant de l'action d'amplificateur fluidique, le signal à l'entrée de cette chaîne issu d'un microphone ou d'une mémoire d'informations est transformé en signal fluidique par un transducteur. Haut parleur pneumatique de mise en oeuvre du procédé comprenant un seul étage d'amplification; l'amplification résultant de fluctuations de débit autour d'un débit moyen d'un écoulement de fluide sous pression. Application privilégiée aux aéronefs ou navires de surveillance ou de secours pour la transmission de messages parlés à de très grandes distances.

Acoustic amplifier purely with fluid and broad waveband and her applications

Device to produce the flow of a fluid

Apparatus to amplify the sounds

Pneumatic loudspeaker with continuous flow rate of pressurised fluid

Pneumatic loudspeaker with continuous flow rate of pressurised fluid modulated by an obstacle forming an integral part of a movable gadget with electromagnetic coil and supported by a leaktight elastic diaphragm. …<??>The movable gadget 17 comprises a cylindrical support 17A and a winding 18 housed in a flattened groove made in the body of the support 17A, the winding 18 and its support 17A forming a rigid integral assembly, the winding 18 being sandwiched between a first adhesive layer coating the bottom of the flattened groove and a second adhesive layer embedding the turns of the winding 18 and endowing the assembly 17 with a smooth, joined-up surface. …<??>Application to sound transmissions. … …

Method and apparatus for producing sound waves

Water resistant audible toys with sound effects

A water resistant audible toy, such as a toy water gun, includes a speaker having a water resistant speaker cone. The water resistant audible toy includes a switch to activate the speaker to generate sounds. The water resistant audible toy may further include a light to generate lighting effects and a motor to generate a vibration. A pressure equalizer may be further included in the water resistant audible toy. Seals may be provided as part of the water resistant audible toy. The toy water gun includes a trigger to actuate the switch. The speaker may be part of a water resistant sound effects module.

Linear Loudspeaker Motor

A linear loudspeaker motor. A flat, relatively thin, rigid elongate motor armature is disposed in a gap between the north pole of one elongate magnet and the south of another elongate magnet, or a gap between the north and south poles of the same, or effectively the same, magnet. Several alternative means are provided to suspend the armature in the gap. The armature includes an elongate electrically conductive, low impedance strip. When a current flows in the strip, a force is produced that tends to move the elongate armature in or out of the gap, thereby displacing a loudspeaker diaphragm to which it is attached. 1. A motor for producing planar motion , comprising:an elongate first magnet having a north and south poles extending along the elongate dimension of the first magnet;an elongate second elongate magnet having a north and south poles extending along the elongate dimension of the second magnet;a support member for holding the first magnet in relation to the second magnet so that their elongate dimensions are substantially parallel, opposite poles of the first magnet and the second magnet face one another, respectively, and a gap exists there between; anda substantially planar armature disposed in the gap between the first magnet and the second magnet, the armature having a driving portion adjacent one edge thereof and a flat, electrically-conductive element having an elongate dimension extending substantially parallel to the elongate axes of the magnets,such that when an electric current is caused to flow in the elongate dimension of the electrically-conductive element, a force is exerted on the planar armature in a translational direction parallel to a surface of the armature and perpendicular to the elongate axes of the magnets.2. The motor of claim I , further comprising a magnetic conductor member disposed between the first magnet and the second magnet adjacent respective first elongate edges thereof so as to produce a high flux-density magnetic circuit ...

Planarlautsprecher mit doppelseitiger Ferrofluidlagerung einer Schwingspule einer Antriebseinheit sowie Akustikeinheit mit einem derartigen Planarlautsprecher

Planarlautsprecher (6 bis 9) mit einer plattenförmigen Flachmembran (15 bis 22) und zumindest einer Antriebseinheit (43), die zur Schwingungsanregung der Flachmembran (15 bis 22) mit der Flachmembran (15 bis 22) gekoppelt ist, wobei die Antriebseinheit (43) eine Magneteinrichtung (44) aufweist, die einen Spalt (59, 93) zwischen zwei Magneteinheiten (45, 46, 85) der Magneteinrichtung (44) umfasst, wobei sich ein plattenförmiger Spulenträger (62) mit zumindest einer daran ausgebildeten Spule (63) der Antriebseinheit (43) in den Spalt (59, 93) erstreckt und welcher abhängig von der elektromagnetischen Wechselwirkung zwischen der Magneteinrichtung (44) und der Spule (63) in einer Richtung senkrecht zu einer Verbindungsgeraden (G) zwischen den beiden Magneteinheiten (45, 46, 85) bewegbar ist, dadurch gekennzeichnet, dass der Spulenträger (62) mit einem magnetischen Fluid (64 bis 67, 94 bis 97) zwischen den Magneteinheiten (45, 46) im Spalt (59, 93) gelagert ist, wobei das magnetische Fluid ( ...

Improvements in or relating to Wireless and other Telegraphic or Telephonic Receiving Apparatus.

... 117,247. Lyons, W. J., and Selective Signal Co. March 10, 1917. Harmonic telegraphs; optical and photographic receivers and rccorders.-A recorder comprises a manometric flame which is optically or photographically recorded or which produces a smoke trace on a moving strip. In the arrangement shown in Fig. 1, the diaphragm e of a chamber a is connected to a tuning fork i, or to a tuned reed or string, which is operated upon by a magnet f receiving electric impulses of a predetermined frequency. In the modification shown in Fig. 2, the magnet f is placed between the prongs of the fork i, while the movements of the fork are damped by a piece of rubber m, the pressure upon which is varied by a screw n. The prongs of the fork i may be provided with small permanent magnets or with magnets the coils of which are energized by the currents passing through the magnet f. The jet and its associated parts should be enclosed to protect it from sounds, air-currents, and vibrations.

HYDRAULIC LEVER ACTUATOR

Improved sound amplifying system

... 377,511. Gramophones. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(Hooven Automatic Typewriter Corporation; Hamilton, Ohio, U.S.A.) Oct. 21, 1931, No. 29276. [Class 40 (ii).] A gramophone 10 forming part of a soundamplifying device designed for use on a motor car is mounted on pivots 61 in a ring 60 which is pivoted on an axis at right-angles in a bracket 62.

POLYHEDRAL DIRECTIONAL TRANSDUCER ARRAY

Each of the acoustic transducers (elements) of an array has a maximum dimension of less than .lambda.. They are located at the vertices (4, 6) of a regular polyhedron (14), which may be an icosahedron (12 elements), or a dodecahedron (20 elements). This placement effectively locates the elements on the surface of a sphere with diameter selected to provide an interelement spacing of .lambda./3 to 2.lambda./3. The signals are delayed for phasing to form directive "beams". A second array includes elements located at the vertices (6, 34) of a smaller polyhedron (600A) centered at the same point and included within the first array, and operated at a higher frequency than the outermost array. In order to reduce the effects of shadowing, the locations of the transducers of the smaller included array (600A) are selected to lie on radials (630) passing through the centroids (614) of the faces of the polygon defining the larger array (14).

Thermal apparatus for reproduction and the sounds

Application of the pneumatic loudspeaker

SHAPE-SHIFTING HEADPHONES

A head-worn audio system includes a first support frame; a first contact element coupled to the first support frame and configured to contact a first portion of a head of a user; a first actuator coupled to the first support frame and the first contact element; and a processor that is communicatively coupled to the first actuator and is configured to: generate a first actuator signal based on first information that is to be conveyed to the user; and transmit the first actuator signal to the first actuator, wherein the first actuator generates a first force on the first contact element based on the first actuator signal, the first force corresponding to the information to be conveyed to the user.

Gas-filled acoustic suspension speaker

An acoustic suspension speaker enclosure is filled with a heavy gas, which has a much lower sonic velocity than air. This allows the enclosure to operate at a much lower frequency, in direct proportional to the reduction in sonic velocity.

HOUSING FOR MICROPHONE ARRAYS AND MULTI-SENSOR DEVICES FOR THEIR SIZE-OPTIMIZATION

Improvements relating to sound reproducing means

... 318,564. Green, H., and Celebritone, Ltd. June 1, 1928. No Patent granted (Sealing fee not paid). Phonographic reproducers; magnetic instruments. - Acoustic vibrations, direct or after amplification, or vibrations produced from a sound record are transmited by a pneumatic transmission system and are reproduced directly or after amplification. The pneumatic system may be maintained at atmospheric pressure, or above or below this pressure and serves to amplify the vibrations. As shown in Fig. 1, vibrations imparted by a record 7 through a stylus 6 to the movable member 5 of a bellows 2 are transmitted through a flexible inexpansible conduit 1 to a bellows 8, the movable member 10 of which carries a coil 13 on a former 14 which is thereby vibrated in the field of a pot magnet 11 and reproduces the sound through an amplifier 15 in a loud speaker 16. The pressure in the conduit may be maintained above or below atmospheric by a valved pipe connection 17 to a suitable pressure supply means, and ...

Speaker system with reproduced sound wave manipulation

Improvements in and relating to sound reproducing devices of the pneumatic relay type

... 457,213. Fluid - pressure relays for phonographs &c. KOLB, O. K., 39, Beverley Court, Wellesley Road, Chiswick, London, and RICKETS, W. J., 293, Whitchurch Lane, Edgware, Middlesex. July 24, 1935, No. 21053. [Classes 13 and 40 (ii)] [See also Group XXXIX] A sound - reproducing device of the pneumatic relay type has one or more valves controlling the flow of fluid in accordance with the wave form of the sound and according to the average intensity or amplitude envelope of a sound sequence to be reproduced. The valve may be mechanically set at the half-open position and its average value control may be inversely as the average intensity so that it is moved towards the closed position when a sound sequence of low intensity is being reproduced. As shown in Fig. 1, a grid or comb valve V is vibrated over apertures S in the fluid channel by a moving coil M in which the sound currents are superimposed on currents proportional to the average amplitude of a sequence of sounds which uncovers the ...

Improvements in or connected with sound reproducing devices

... 303,828. British Talking Pictures, Ltd., (Assignees of Forest, L. de). Dec. 10, 1927, [Convention date]. Condenser telephones and other electrostatic instruments.-In a sound reproducer in which the flow of compressed air is controlled electrostatically, the whole of the gas stream is caused to pass between plates or screens subjected to varying potentials and closely disposed so that onlv a lamina or film of gas is contained therebetween. The air or other gas may be ionized prior to and/or during its passage through the electrostatic, field. In the construction, Fig. 1, one end of a metallic casing member 1 is closed by a plate 7 of insulating material so as to form a chamber 3 to which compressed gas is supplied through the tube 4. Apertured plates 5, having their inner edges formed into a V-shape., are clamped between the casing 1 and a cover piece 6, the whole forming one electrode of the electrostatic device. The other electrode is formed by a series of plates 9 mounted on the reduced ...

LOUDSPEAKER PCM INPUT, FLUID OPERATED

Amplifying house for reproductive apparatuses of sounds

Electro-pneumatic diaphragm

CREW TRANSDUCER ELECTRODYNAMIQUE-FLUIDIQUE FOR PNEUMATIC LOUDSPEAKER

Le support 17 formant l'équipage a un diamètre d'un ordre de grandeur supérieur à sa hauteur elle-même d'un ordre de grandeur supérieur à son épaisseur. Il est rigidifié par deux membranes chacune formée d'une frette composite incluant entre le support 17 et une couronne rigide concentrique 23, 24, un anneau d'élastomère 22 y adhérant qui présente une hauteur axiale du même ordre de grandeur que son épaisseur radiale. Ces anneaux assurent d'une part le rappel élastique du support en déplacement axial et d'autre part le maintien de la circularité et donc de la planéité dudit support. The support 17 forming the crew has a diameter of an order of magnitude greater than its height itself of an order of magnitude greater than its thickness. It is stiffened by two membranes each formed by a composite hoop including between the support 17 and a concentric rigid crown 23, 24, an elastomer ring 22 adhering thereto which has an axial height of the same order of magnitude as its radial thickness. These rings ensure on the one hand the elastic return of the support in axial displacement and on the other hand the maintenance of the circularity and therefore of the flatness of said support.

OPEN EAR CANAL HEARING AID

High Performance Transducer

Systems and methods for a high performance transducer are disclosed. For example, one described transducer includes: a pressure locking chamber with at least one orifice; a two-state solenoid configured to be controlled by a control circuit and a capacitor, the two-state solenoid comprising a solenoid housing; and a permanent magnet assembly configured to be actuated by the two-state solenoid to move between an open and a closed position, the permanent magnet assembly comprising a stopper configured to seal the at least one orifice in the closed position. 1. An electro-pneumatic pressure locking mechanism comprising:a pressure locking chamber with at least one orifice;a two-state solenoid configured to be controlled by a control circuit and a capacitor, the two-state solenoid comprising a solenoid housing; anda permanent magnet assembly configured to be actuated by the two-state solenoid to move between an open and a closed position, the permanent magnet assembly comprising a stopper configured to seal the at least one orifice when in a closed position.2. The electro-pneumatic pressure locking mechanism of claim 1 , wherein the control circuit is configured to detect when a control signal falls below a predetermined level.3. The electro-pneumatic pressure locking mechanism of claim 2 , wherein when the control signal falls below a predetermined level claim 2 , the control circuit is configured to direct a pulse from the capacitor to the two-state solenoid to move the permanent magnet assembly to the closed position.4. The electro-pneumatic pressure locking mechanism according to claim 3 , wherein the permanent magnet assembly is configured to maintain a closed position due to a magnetic force of the permanent magnet on the solenoid housing claim 3 , until the two-state solenoid applies an electromagnetic force to the permanent magnet assembly.5. The electro-pneumatic pressure locking mechanism of claim 3 , wherein the control circuit is configured to direct a pulse ...

PARAMETRIC TRANSDUCER SYSTEM AND RELATED METHODS

A method of optimizing a parametric emitter system having a pot core transformer coupled between an amplifier and an emitter, the method comprising: selecting a number of turns required in a primary winding of the pot core transformer to achieve an optimal level of load impedance experienced by the amplifier; and selecting a number of turns required in a secondary winding of the pot core transformer to achieve electrical resonance between the secondary winding and the emitter. 1. A matching element for use in a parametric signal emitting system having an amplifier and a parametric emitter , the matching element comprising:a pot core;a transformer disposed within the pot core and configured to be coupled between the amplifier and the parametric emitter, the transformer comprising a primary winding with a first number of turns and a secondary winding with a second number of turns, wherein the number of turns in the primary winding of the pot core transformer is selected to present a predetermined level of load impedance to the amplifier; and wherein the number of turns in the secondary winding of the pot core transformer is selected to achieve electrical resonance between the secondary winding and the emitter.2. The matching element according to claim 1 , wherein the pot core comprises: an inner wall circumscribed by the primary and secondary windings of the transformer; and an air gap formed in the inner wall claim 1 , wherein a size of the air gap is selected to decrease the overall physical size of the pot core transformer while avoiding saturation of the transformer during operation of the emitter.3. The matching element according to claim 1 , wherein the pot core includes an outer wall that substantially fully encloses the windings of the transformer claim 1 , and an inner wall circumscribed by the windings of the transformer.4. The matching element according to claim 3 , comprising an air gap formed in the inner wall claim 3 , wherein a size of the air gap is ...

External Ear Canal Pressure Regulation System

An external ear canal pressure regulation device including a fluid flow generator and an earpiece having a first axial earpiece conduit fluidicly coupled to the fluid flow generator, whereby the earpiece has a compliant earpiece external surface configured to sealably engage an external ear canal as a barrier between an external ear canal pressure and an ambient pressure.

External Ear Canal Pressure Regulation System

An external ear canal pressure regulation device including a fluid flow generator and an earpiece having a first axial earpiece conduit fluidicly coupled to the fluid flow generator, whereby the earpiece has a compliant earpiece external surface configured to sealably engage an external ear canal as a barrier between an external ear canal pressure and an ambient pressure. 1. An external ear canal pressure regulation device , comprising:a first fluid flow generator capable of generating a first fluid flow;a first earpiece having a first axial earpiece conduit which communicates between a first earpiece first end and a first earpiece second end, said first axial earpiece conduit fluidicly coupled to said first fluid flow generator, said first earpiece having a first compliant earpiece external surface configured to sealably engage a first external ear canal of a first ear as a first barrier between a first external ear canal pressure and an ambient pressure.2. The device of claim 1 , wherein said first fluid flow generator generates said first fluid flow between said first fluid flow generator and said first axial earpiece conduit claim 1 , said first fluid flow having a first fluid volume in a range of between 0 milliliters to about 20 milliliters.3. The device of claim 2 , wherein said first fluid volume comprises a first pre-selected fluid volume in said range of between 0 milliliters to about 20 milliliters.4. (canceled)5. The device of claim 1 , said first fluid flow generator capable of generating a first pressure differential between said first external ear canal pressure and said ambient pressure.6. The device of claim 5 , said first pressure differential having a first pressure differential amplitude in a range of between 0 kilopascals to about 50 kilopascals.7. The device of claim 6 , wherein said first pressure differential amplitude comprises a first pre-selected pressure differential amplitude in said range of between 0 kilopascals to about 50 kilopascals ...

MICROPHONE AND METHOD OF TESTING A MICROPHONE

The microphone comprises a housing (), which has an inner volume () filled with a gas, an opening () of the housing, an acoustic sensor () arranged in the housing, a diaphragm () of the acoustic sensor located above the opening, and a heater () in the inner volume. The acoustic sensor may especially comprise a microelectromechanical system. The gas is heated from inside the inner volume to increase the pressure and generate a corresponding signal of the acoustic sensor (). This signal can be used for self-calibration of the sensitivity or for self-diagnostics to check the function of the microphone. 1. A microphone , comprising:a housing, an inner volume of the housing being filled with a gas;an opening of the housing;an acoustic sensor in the housing;a diaphragm of the acoustic sensor above the opening, the diaphragm separating the inner volume from the opening, anda heater in the inner volume, the heater being configured to increase the pressure of the gas by heating and thus causing the diaphragm, to deflect towards the opening.2. The microphone of claim 1 , further comprising:an integrated circuit chip in the housing; andan electric connection between the integrated circuit chip and the acoustic sensor.3. The microphone of claim 1 , wherein the heater is integrated in the acoustic sensor.4. The microphone of claim 2 , wherein the heater is integrated in the integrated circuit chip.5. The microphone of claim 1 , further comprising:a heater chip in the housing, the heater being integrated in the heater chip.6. The microphone of claim 1 , further comprising: a pressure sensor in the inner volume of the housing.7. The microphone of claim 1 , wherein the diaphragm is a deflectable membrane.8. The microphone of claim 1 , wherein the diaphragm is a transparent or semitransparent plate.9. The microphone of claim 1 , wherein the acoustic sensor is a microelectromechanical system.10. A method of testing a microphone having a housing with an opening claim 1 , an inner ...

ATTACHABLE SENSING POD COMPRISING A PIEZOELECTRIC UNIT

A sensor pod assembly comprising a gel pad, a gel pad cap, a piezoelectric sensor, a base plate, a base plate support, a wiring harness, a battery, a noise attenuating backing, and a charging component; said gel pad comprising a top and bottom, said bottom having a flat bottom and a concave recess; said flat bottom acoustically contacting said piezoelectric sensor; said piezoelectric sensor secured to a first side of said base plate support, and a second side of said base plate support secured to said base plate, a wiring harness and a battery connected to said base plate, and a charging component having exposed annular rings on the exterior side of said sensor pod assembly; a noise attenuating backing compressing the charging component against the base plate; and a gel pad cap having an outer face and an inner face, said inner face in contact with said base plate support. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. A sensor pod assembly comprising:a base plate having a top side and a bottom side, a piezoelectric unit, a battery, a noise attenuating backing, a wireless charging coil, a sound attenuating cap, and a sensor pad, said base plate comprising electronic circuitry connected to said battery, said piezoelectric unit and to said wireless charging coil, said piezoelectric unit attached to said top side of said base plate and said wireless charging coil and said battery attached to said bottom side; said sound attenuating cap having a ring shape, having an inner and outer side wall and a circular opening providing access to the piezoelectric unit from the top side; said noise attenuating backing engaged to the bottom side of the base plate; and said sensor pad positioned within the circular opening of said sound attenuating cap and in contact with at least a portion of the piezoelectric unit.9. The sensor pod assembly of further comprising a base plate support having a top and a bottom claim 8 , said base plate ...

Audio Device for Altering Water Structure

An audio device adapted for altering the structure of water is provided. The device includes a rigid, enclosed cabinet with speakers mounted to the cabinet. The speakers are positioned on opposing walls, facing each other, within the cavity of the cabinet and a watertight container is placed between the speakers. The exterior surface of the container rests directly against with the cone or the voice coil of the speakers, which are connected to an external sound system. Because the container is flush against the surface of the speakers, vibrations from the sound waves generated by the cone or the voice coil are transferred directly through the water. The sound waves alter the structure of the water from a liquid form to a liquid crystalline form, such that the liquid crystalline takes coherent geometric shapes. 1) A device adapted for altering water molecules' structure , comprising:a boxlike cabinet having a cavity and an interior surface;wherein said cavity is adapted for receiving a container;said container having an exterior surface;a speaker system comprising a connection assembly and a plurality of speakers mounted to said cabinet;wherein each of said plurality of speakers is mounted oppositely on said interior surface within said cavity and each of said plurality of speakers rests flush against said exterior surface of said container;a sound-absorbing material lined along said cabinet interior surface.2) The device adapted for altering water molecules' structure of claim 1 , wherein said audio signal connection assembly further comprises a phono connector.3) The device adapted for altering water molecules' structure of claim 1 , wherein said audio signal connection assembly further comprises a short-range wireless interconnection system claim 1 , wherein said wireless interconnection system comprises a power source claim 1 , a power button and indicator LEDs claim 1 , an antenna claim 1 , a transceiver module claim 1 , and an amplifier.4) The device adapted ...

Adjustable Securing Mechanism

Securing mechanisms for space access devices, such as an audio signal transmitting device, include a plurality of outwardly projecting members that are configured to transition from a relaxed state to a securing state when the space access device is inserted into an internal space or opening that has an inside diameter smaller than an outside diameter of the outwardly projecting members in the relaxed state. The outwardly projecting members securely engage a surface of the internal space and conform to the shape and size of the internal space. A sound blocking portion can be provided to substantially prevent air/sound flow past the sound blocking portion of the securing mechanism. 1. A securing mechanism for an audio signal transmitting device , comprising:a base comprising a longitudinal axis and an outer surface; anda securing portion disposed on at least a portion of said base, said securing portion being configured to contact a surface of an internal space or opening into which said securing mechanism is inserted;a sound blocking portion disposed on at least another portion of said base, said sound blocking portion being configured to seal circumferentially around the surface of the internal space or openingsaid securing portion being configured for positioning and maintaining said base at a distance from a location along the internal space or opening; andwherein a least a portion of said adjustable securing mechanism being configured to transition from a first state to a securing state when inserted into the internal space or opening, said securing state comprising at least said securing portion being constrained to have a smaller cross-sectional diameter relative to a cross-sectional diameter in said first state.2. The securing mechanism of claim 1 , wherein said securing portion comprises a plurality of members claim 1 , at least some of said members comprising at least one of: bristles claim 1 , protrusions claim 1 , ridges claim 1 , grooves claim 1 , blades ...

Throat Microphone

A throat microphone includes a cantilevered piezoelectric device having a fixed end supported by a base and a free end with an anchor fixed thereto. The piezoelectric device vibrates to output audio signals in response to vibrations of a throat. The fixed end is attached to the base such that the piezoelectric device vibrates parallel to the surface of the base A gap is defined between the anchor and the base The gap is provided with a vibration absorber 1. A throat microphone comprising:a base having a flat surface; anda cantilevered piezoelectric device having a fixed end supported by the base, whereinthe piezoelectric device has a free end with an anchor attached thereto and outputs audio signals in response to vibrations of a throat,the fixed end is fixed to the base such that the piezoelectric device vibrates parallel to a surface of the base,the anchor and the surface of the base are separated by a gap, andthe gap is provided with a vibration absorber.2. The throat microphone of claim 1 , wherein the piezoelectric device claim 1 , the anchor claim 1 , and the vibration absorber are sealed with a sealant on the surface of the base.3. The throat microphone of claim 1 , wherein the piezoelectric device is a piezoelectric bimorph.4. The throat microphone of claim 1 , wherein the vibration absorber is a viscous liquid.5. The throat microphone of claim 4 , wherein the viscous liquid is a silicone oil.6. The throat microphone of claim 1 , wherein the anchor has a surface parallel to the surface of the base.7. The throat microphone of claim 4 , wherein the gap between the anchor and the surface of the base has a size allowing the viscous liquid to flow in by capillary action.8. The throat microphone of claim 2 , wherein the sealant comprises RTV rubber. The present invention relates to a throat microphone including a cantilevered piezoelectric device for converting vibrations of a throat into audio signals.Throat microphones, which convert vibrations of throats into ...

ACOUSTIC GAS VOLUME FRACTION MEASUREMENT IN A MULTIPHASE FLOWING LIQUID

Apparatus and methods for the measurement of gas volume fraction of produced oil are described. A first method measures the response of a pipe containing the produced oil excited by a source of vibration in the form of an acoustic frequency chirp containing a linearly varying range of frequencies in the tens of kilohertz range encompassing at least one resonant mode of the pipe. As the gas volume fraction increases, the location of the peak maximum of the measured frequency spectrum responsive to the excitation increases in frequency, and the height of the peak maximum increases, thereby permitting a linear calibration curve to be obtained. A second method measures the response of a pipe containing the produced oil to excitation by a continuous source of vibration having a chosen frequency above those which excite flexural vibrations in the pipe and simultaneously excite acoustic waves in the fluid contained in the pipe, known as the coincidence frequency. Gas present in the fluid will interrupt sound propagation or reverberation, thereby generating fluctuations in the amplitude of the measured vibrations of the pipe. The amplitude fluctuation level provides a measure of the gas volume present inside the pipe. A third method measures the response of a pipe containing the produced oil to excitation by a high-bandwidth, short pulse having a chosen center frequency above the coincidence frequency. Gas present in the fluid will interrupt pulse propagation, thereby generating fluctuations in the amplitude of the measured vibrations of the pipe. 1. A method for measuring the gas volume fraction in a fluid , comprising: exciting at least one mechanical resonance vibration in a section of pipe containing the fluid using an acoustic frequency chirp containing a linearly varying range of frequencies encompassing the at least one resonance vibration; and measuring the at least one resonant frequency of the pipe section responsive to the applied frequency chirp , whereby as the ...

METHOD AND STRUCTURE FOR INDUCING ACOUSTIC SIGNALS AND ATTENUATING ACOUSTIC SIGNALS

At least one embodiment is directed to an earpiece comprising a housing; and a field responsive fluid, where the field responsive fluid is in the housing, where the housing is part of the earpiece, and where the earpiece is configured to vary a field to vary an acoustical property of the field responsive fluid. 1. An earpiece comprising:a housing;an electric field generator, where the field generator is configured to generate a net electric field when a non-zero voltage is applied to the field generator, where the net electric field includes at least one of a stable electric field and a varying electric field; anda field responsive fluid, where the field responsive fluid is within a portion of a housing, where the field responsive fluid is configured to respond only to the electric field from the electric field generator and to any ambient electric field originating from outside of the portion, where the housing is part of the earpiece, where the field responsive fluid responds to the net electric field, where the response is at least one of increased sound absorption at a first acoustic frequency and generation of an acoustic wave at a second acoustic frequency.2. An acoustic generator comprising:a field varying circuit, where the field varying circuit is an electric field generator, where the field generator is configured to generate a net electric field when a non-zero voltage is applied to the field generator, where the net electric field includes at least one of a stable electric field and a varying electric field; anda field responsive fluid, where the field responsive fluid is configured to move in response to the net electric field generating an acoustic signal. This application is a continuation of U.S. patent application Ser. No. 13/154,429 filed Jun. 6, 2011, which claims the benefit of U.S. provisional patent application No. 61/351,290 filed 4 Jun. 2010. The disclosure of both of which are incorporated herein by reference in their entirety.The present ...

Speaker system and electronic device using same

A speaker system includes an enclosure, a speaker unit, and an elastic sheet. The speaker unit is disposed in the enclosure. The elastic sheet includes a first fiber made of a resin and a second fiber made of a resin, and is disposed in the enclosure. The second fiber is thicker than the first fiber and entangled with the first fiber.

Earplugs, earphones, and eartips

At least one exemplary embodiment is directed to an earphone having a first and second tab that are configured to be engaged by fingers, where when fingers squeeze the tabs together pressure on a reservoir is reduced so that a medium flows from an expandable tip reducing the size of the expandable tip.

High-Pressure Water Resistant Microspeaker with Improved Coil Structure

The present disclosure provides a reliable structure which can prevent disconnection of a voice coil lead wire, while employing a voice coil embodied as an aluminum coil to improve the mid-frequency band SPL of a slim high-pressure water resistant microspeaker. According to the present disclosure, there is provided a high-pressure water resistant microspeaker with an improved coil structure, including an FPCB attached to the outer surface of a frame, a pad of the FPCB extending inside the frame and another part of the FPCB extending outside the frame. The upper end of the voice coil is attached to an overlapping position of a side diaphragm and a center diaphragm, and the lower end of the voice coil is supported by the part of the FPCB extending inside the frame. 1. A high-pressure water resistant microspeaker , comprising:a frame;a yoke coupled to a bottom surface of the frame;an inner magnet attached to the yoke;a pair of outer magnets attached to the yoke and disposed at opposite sides of the inner magnet;an inner top plate attached to the inner magnet;a rectangular ring-shaped outer top plate attached to the pair of outer magnets;a voice coil having a lower end positioned in an air gap between the inner magnet and the pair of outer magnets;an FPCB (flexible printed circuit board) attached to an outer surface of the frame, a part of the FPCB extending inside the frame, another part of the FPCB extending outside the frame;a side diaphragm having a side surface attached to an inner surface of the frame and a vibration surface extending across the side surface;a center diaphragm attached to a center of the side diaphragm; anda grill attached to a top surface of the frame to cover the side surface of the side diaphragm,wherein an upper end of the voice coil is attached to an overlapping position of the side diaphragm and the center diaphragm, and the lower end of the voice coil is supported by the part of the FPCB extending inside the frame.2. The high-pressure water ...

ELECTRONIC DEVICE INCLUDING SPEAKER

Disclosed is an electronic device including a housing; a speaker configured to output a sound signal; an enclosure surrounding the speaker and including a pipe passage, through which the sound signal moves in a direction facing an opening formed in the housing; a heat emitting structure mounted on an inner surface or an outer surface of the enclosure; a sealing member attached to the pipe passage; and a processor physically or electrically connected to the heat emitting structure and configured to control emission of heat. 1. An electronic device comprising:a housing;a speaker configured to output a sound signal;an enclosure surrounding the speaker and including a pipe passage, through which the sound signal moves in a direction facing an opening formed in the housing;a heat emitting structure mounted on an inner surface or an outer surface of the enclosure;a sealing member attached to the pipe passage; anda processor physically or electrically connected to the heat emitting structure and configured to control emission of heat.2. The electronic device of claim 1 , wherein the heat emitting structure is formed by coating metal on the inner surface of the enclosure.3. The electronic device of claim 1 , wherein the heat emitting structure comprises by a heating wire attached to the inner surface of the enclosure.4. The electronic device of claim 3 , wherein the heat emitting structure is formed through insert-molding in a process of insert-molding the enclosure.5. The electronic device of claim 4 , wherein the heat emitting structure comprises an electric wire or a plate.6. The electronic device of claim 1 , further comprising:a display configured to detect a touch input,wherein the processor is configured to determine whether the electronic device is submerged based on a change of a signal corresponding to the touch input.7. The electronic device of claim 6 , further comprising:a microphone,wherein the microphone collects a non-audible sound signal output through the ...

APPARATUSES AND METHODS FOR SOUND RECORDING, MANIPULATION, DISTRIBUTION AND PRESSURE WAVE CREATION THROUGH ENERGY TRANSFER BETWEEN PHOTONS AND MEDIA PARTICLES

Recording, manipulating, distributing and creating sound pressure waves in one or more media by employing an apparatus that transfers the energy between photons and particles of the media is disclosed. An exemplary apparatus comprises one or more lasers and an isotropic or anisotropic medium for photon processing and distribution. An exemplary method comprises determining the target locations for sound pressure wave recording, manipulating or creation; transmitting photons to the target locations; transferring photon energy to media particles to create or manipulate a sound pressure wave; or transferring energy of media particles to photons for recording or manipulating a sound pressure wave. 1. An apparatus comprising:a medium, the medium being isotropic or anisotropic and having photorefractive properties;a first coherent source of photons; anda second coherent source of photons,wherein the first and second coherent sources of photons are arranged so that photon beams emitted therefrom are directed onto the medium and are mutually orthogonal.2. The apparatus of comprising an input signal source claim 1 , the input signal source including at least one of a selection input of a control claim 1 , the medium claim 1 , a storage medium and a remote apparatus.3. The apparatus of claim 2 , wherein the input signal indicates a target location to which photons are to be transmitted from the medium claim 2 , the photons being directed to the target location non-mechanically.4. The apparatus of claim 2 , wherein the input signal indicates one or more properties of sound pressure waves to be generated claim 2 , modified claim 2 , or recorded by the apparatus outside the medium.5. The apparatus of claim 2 , wherein the input signal indicates one or more properties of objects to be detected by the apparatus.6. The apparatus of claim 1 , wherein the medium includes a crystal.7. The apparatus of comprising a processor.8. The apparatus of claim 7 , wherein the processor is an ...

Linear Loudspeaker Motor

A linear loudspeaker motor. A flat, relatively thin, rigid elongate motor armature is disposed in a gap between the north pole of one elongate magnet and the south of another elongate magnet, or a gap between the north and south poles of the same, or effectively the same, magnet. Several alternative means are provided to suspend the armature in the gap. The armature includes an elongate electrically conductive, low impedance strip. When a current flows in the strip, a force is produced that tends to move the elongate armature in or out of the gap, thereby displacing a loudspeaker diaphragm to which it is attached. 1. A motor for producing planar motion , comprising:an elongate first magnet having a north and south poles extending along the elongate dimension of the first magnet;an elongate second elongate magnet having a north and south poles extending along the elongate dimension of the second magnet;a support member for holding the first magnet in relation to the second magnet so that their elongate dimensions are substantially parallel, opposite poles of the first magnet and the second magnet face one another, respectively, and a gap exists there between; anda substantially planar armature disposed in the gap between the first magnet and the second magnet, the armature having a driving portion adjacent one edge thereof and a flat, electrically-conductive element having an elongate dimension extending substantially parallel to the elongate axes of the magnets,such that when an electric current is caused to flow in the elongate dimension of the electrically-conductive element, a force is exerted on the planar armature in a translational direction parallel to a surface of the armature and perpendicular to the elongate axes of the magnets.2. The motor of claim I , further comprising a magnetic conductor member disposed between the first magnet and the second magnet adjacent respective first elongate edges thereof so as to produce a high flux-density magnetic circuit ...

STRUCTURES FOR DYNAMICALLY TUNED AUDIO IN A MEDIA DEVICE

Techniques associated with structures for dynamically tuned audio in a media device are described, including receiving data associated with an acoustic output, determining a target frequency response associated with an audio device, the audio device implemented with a hybrid radiator formed using a smart fluid or artificial muscle material, determining a value associated with a property of the smart fluid or artificial muscle material, calculating, using a dynamic tuning application, a magnitude of an external stimulus associated with the value, and sending a control signal to a source, the control signal configured to cause the source to apply the external stimulus, an application of the external stimulus of the determined magnitude configured to change the property of the smart fluid or artificial muscle material. 1. A method , comprising:receiving acoustic data associated with an acoustic output;determining, using the acoustic data, a target frequency response associated with an audio device, the audio device comprising a hybrid radiator formed using a smart fluid;determining a value associated with a property of the smart fluid;calculating, using a dynamic tuning application, a magnitude of an external stimulus associated with the value; andsending a control signal to a source, the control signal configured to cause the source to apply the external stimulus of the magnitude, an application of the external stimulus configured to change the property of the smart fluid.2. The method of claim 1 , wherein the change to the property of the smart fluid is configured to tune the hybrid radiator to a target range of frequencies.3. The method of claim 1 , wherein calculating the magnitude of the external stimulus comprises calculating the magnitude of an electric field.4. The method of claim 1 , wherein calculating the magnitude of the external stimulus comprises calculating the magnitude of a magnetic field.5. The method of claim 1 , further comprising providing the ...

LOUDSPEAKER WITH PRESSURE COMPENSATION ELEMENT

A loudspeaker includes a sound transducer, a housing and a unit configured to influence the temperature, such as a pressure compensation element. The sound transducer includes a membrane, the membrane enclosing a gas volume along with the housing. The sound transducer is configured to cause the membrane to vibrate, so that the gas volume is changed in accordance with the vibration. The unit configured to influence the temperature is configured to counteract a change of state, which is due to the membrane vibration, by means of a change in temperature of the gas volume. 1. A loudspeaker comprising:a sound transducer comprising a membrane;a housing which encloses, along with the membrane, a gas volume; anda temperature-influencing unit configured to influence the temperature of the gas volume,the membrane being configured to vibrate so that the gas volume is changed in accordance with a vibration, andthe unit configured to influence the temperature comprising a first pressure compensation element configured to cool the gas volume, and a second pressure compensation element configured to heat the gas volume, so that the unit configured to influence the temperature is configured to counteract a change of state, which is due to the vibration, by means of a time-variable change in temperature, which depends on the audio signal, in the gas volume.2. A loudspeaker comprising:a sound transducer comprising a membrane;a housing which encloses, along with the membrane, a gas volume; anda temperature-influencing unit configured to influence the temperature of the gas volume,the membrane being configured to vibrate so that the gas volume and, thus, the pressure in the gas volume, are changed in accordance with a vibration, andthe unit configured to influence the temperature comprising a first pressure compensation element configured to cool the gas volume, and a second pressure compensation element configured to heat the gas volume, so that the unit configured to influence the ...

Metamaterial Loudspeaker Diaphragm

A metamaterial loudspeaker diaphragm is disclosed. The diaphragm includes a cone structure having a periodic arrangement of two dissimilar materials, e.g., soft and hard, in an alternating periodic pattern to achieve an anisotropic structure, which results in passive amplification of the sound. The anisotropic cone structure includes a baseline cone material and a different, compatible second material. The cone includes a body having a conical cross-section, an interior side, an exterior side, and concentric circles of material alternating between a soft material and a rigid material. Circumferential grooves disposed within the concentric circles include rigid material. Concentric circles including rigid material line the interior side of the body. Substantially all the soft material of the concentric circles is disposed on the exterior side of the cone. Spokes disposed on the exterior side of the cone extend from a base toward a vertex of the cone. 1. A speaker cone , comprising:{'sup': 1', '2, 'a body including a conical cross-section having a first end including a base, a second end including a vertex, said first end opposite said second end, an interior side, and an exterior side, said interior side opposite said exterior side, said body tapering in circumference from said first end toward said second end, said body rigid in a radial direction and alternating soft and hard in a circumferential direction;'}a first plurality of concentric circular regions formed of a soft material and a second plurality of concentric circular regions formed of a rigid material, said concentric circular regions of said first and second plurality of concentric circular regions alternating in arrangement along said body from said first end to said second end such that said first and second plurality of concentric circular regions taper in circumference from the base to the vertex;a circumferential groove disposed within each of said plurality of concentric circles, said ...

Calibration of combined acceleration and pressure sensors

Techniques are disclosed relating to calibrating sensors configured to measure both pressure and acceleration. In various embodiments, a system detects a first voltage produce by a first piezoelectric material in a hydrophone when the hydrophone is exposed to an acceleration and detects a second voltage produced by a second piezoelectric material in the hydrophone when the hydrophone is exposed to the acceleration. The system, in some embodiments, compares the first voltage and the second voltage. Based on the comparing of the first and second voltages, in some embodiments, the system determines a resistance for a variable resistor coupled to one of the first and second piezoelectric materials.

SENSOR SYSTEM FOR MEASURING ACCELERATION AND PRESSURE

Techniques are disclosed relating to sensors configured to measure acceleration and pressure. In various embodiments, an apparatus includes a first hydrophone sensor having a first piezoelectric material and a first housing structure and a second hydrophone sensor having a second piezoelectric material and a second housing structure. In some embodiments, the apparatus includes a first pair of wires configured to provide a first differential voltage and a second pair of wires configured to provide a second differential voltage. The first pair of wires may be coupled to the first hydrophone sensor and the second pair of wires may be coupled to the second hydrophone sensor. In various embodiments, the apparatus is configured to determine, based on the first and second differential voltages, a pressure and an acceleration experienced by the first and second hydrophone sensors. 1. An apparatus , comprising:a first hydrophone sensor having a first piezoelectric material and a first housing structure;a second hydrophone sensor having a second piezoelectric material and a second housing structure;a first pair of wires configured to provide a first differential voltage, wherein a first one of the first pair of wires is coupled to the first housing structure and a second one of the first pair of wires is coupled to the first piezoelectric material; anda second pair of wires configured to provide a second differential voltage, wherein a first one of the second pair of wires is coupled to the second housing structure and a second one of the second pair of wires is coupled to the second piezoelectric material; andwherein the apparatus is configured to determine, based on the first and second differential voltages, a pressure and an acceleration experienced by the first and second hydrophone sensors.2. The apparatus of claim 1 , further comprising:a first voltage divider configured to adjust the first differential voltage provided by the first pair of wires, wherein the first ...

Pressure-sensitive sensor

The present invention achieves a pressure-sensitive sensor which can detect information on a pressure, a sound pressure, acceleration, gas and the like, with high sensitivity. The pressure-sensitive sensor includes: a cantilever ( 22 ); a frame ( 23 ) which is provided around the cantilever ( 22 ) and holds a base end of the cantilever ( 22 ); a gap ( 24 ) formed between the cantilever ( 22 ) and the frame ( 23 ); and a liquid ( 28 ) which seals the gap ( 24 ).

Adjustable Securing Mechanism

Securing mechanisms for space access devices, such as an audio signal transmitting device, include a plurality of flattened members that are configured to transition from a relaxed state to a securing state when the space access device is inserted into an internal space or opening that has an inside diameter smaller than an outside diameter of the flattened members in the relaxed state. The flattened members securely engage a surface of the internal space and conform to the shape and size of the internal space. An amount of force applied by the flattened members to the surface of the internal space can be tuned by changing a stiffness of a rib supporting the flattened member. 1. A securing mechanism for an audio signal transmitting device , comprising:a base comprising a longitudinal axis and an outer surface; andan adjustable securing mechanism disposed on at least a portion of said base, said securing mechanism being configured to contact a surface of an internal space or opening into which said securing mechanism is inserted;said adjustable securing mechanism being configured for positioning and maintaining said base at a distance from a location along the internal space or opening; andwherein a least a portion of said adjustable securing mechanism being configured to transition from a first state to a securing state when inserted into the internal space or opening, said securing state comprising at least a portion of said adjustable securing mechanism being constrained to have a smaller dimension transverse to the longitudinal axis relative to a dimension transverse to the longitudinal axis in said first state; andwherein said adjustable securing mechanism comprises a plurality of flattened members, each of said plurality of flattened members having a flat contact surface configured to contact the surface of the internal space or opening.2. The securing mechanism of claim 1 , wherein said flattened members comprise leaflets each having a length dimension ...

Hearing aid mechanism

A hearing aid includes a sound input device, and a speaker, wherein the speaker includes a compartment with magnet suspended in a fluid containing magnetic particles and wherein a coil wrapped around the compartment or in close proximity thereto excites the magnet to vibrate causing pressure waves to vibrate a diaphragm proximal to the magnet.

开放式耳道助听器

本发明提供用于提供助听器的系统和方法。根据本发明的实施例可提供开放式的耳道助听器。该助听器可包括包含电子器件的部分、无源放大器、以及固定机构。该固定机构可包括鬃毛或气囊。该固定机构可具有各种构造且是可调的。在一些实施例中，助听器可经由骨传导和空气传导来传输声音。

Speaker system and electronic device using same

A speaker system comprises an enclosure, a speaker unit, and an elastic body sheet. The speaker unit is disposed in the enclosure. The elastic body sheet, which has first fiber made of a resin and second fiber made of a resin, is also disposed in the enclosure. The second fiber is thicker than and entangled with the first fiber.

Electric force transducer for compressor

내용 없음

Optical microphone

(57)【要約】 【課題】 構成が簡単で同時に温度安定性が十分である 光学的マイクロフォンを実現することである。 【解決手段】 第２の反射器（６）はグラスファイバ区 間（８）の端面であり、該グラスファイバ区間（８） は、これと結合された別個のダイヤフラム（１１）によ り音圧励振されて変位するように構成する。

Speaker system

스피커 시스템(10)은 스피커 유니트(14)와, 스피커 유니트(14)가 그 일단부에 부착되는 혼(12)을 구비한다. 혼(12)의 길이 방향 일단부 부근에는 그 일단부를 차단하기 위한 제1 멤브레인(24)이 부착된다. 다른 단부 부근에는 제2 멤브레인(26)이 설치된다. 제1 멤브레인(24)과 제2 멤브레인(26)에 의해 밀폐된 공간(30)이 형성된다. 이 밀폐공간(30)에는 공기보다 무거운 기체가 수용된다.

Hydrostatic speaker and speaker driver

내용없음'

Pneumatic speaker system

본 발명은 공압 스피커 시스템으로 전기적 음성신호를 진폭과 진동 주기 신호로 변환하여, 진폭은 공압 시스템의 밸브를 이용한 압력 조절기로부터 조절된 압력 크기로, 진동 주기는 밸브를 이용한 유량 조절기로부터 조절된 유량과 밸브 여닫음 주기로, 준비된 압축 공기를 전기 음성 신호에 따라 진동시켜 공압 실린더에 왕복 진동 운동으로 전달하고, 실린더의 끝단에 연결된 진동판의 진동으로 공기를 진동시켜 소리를 내게 된다. The present invention converts an electric voice signal into an amplitude and a vibration period signal by a pneumatic speaker system, the amplitude is the pressure level adjusted from the pressure regulator using the valve of the pneumatic system, the vibration period and the flow rate adjusted from the flow regulator using the valve In the valve opening and closing cycle, the prepared compressed air is vibrated according to the electric voice signal and transmitted to the pneumatic cylinder as a reciprocating vibration movement, and the air is vibrated by the vibration of the diaphragm connected to the end of the cylinder to make a sound. 스피커, 서브우퍼스피커, 스위칭밸브, 비례압력제어밸브, 서보밸브 Speaker, Subwoofer Speaker, Switching Valve, Proportional Pressure Control Valve, Servo Valve

Speaker system

A speaker system (10) includes a speaker unit (14) and a horn (12) having an end portion to which the speaker unit (14) is attached. A first membrane (24) is attached to an end portion of the horn (12) to block the end portion. A second membrane (26) is installed to the other end portion of the horn (12). A closed room (30) is provided by way of the first membrane (24) and second membrane (26). The room (30) is filled with a gas which is heavier than air.

Porting audio using a connector in a small form factor electronic device

An integrated audible sound output system incorporated in a personal media device is described. The integrated audible sound output system includes a first audio output port, the first audio output port acoustically coupled with the audible sound generator unit by way of a first air path and a second audio output port. In the described embodiments, the second audio output port is acoustically coupled with the audible sound generator unit by way of a second air path. The first and the second air paths cooperate to pass the audible sound generated by the audible sound generator unit to the external environment by way of the first audio port and the second audio port.

Apparatuses and methods for sound recording, manipulation, distribution and pressure wave creation through energy transfer between photons and media particles

Recording, manipulating, distributing and creating sound pressure waves in one or more media by employing an apparatus that transfers the energy between photons and particles of the media is disclosed. An exemplary apparatus comprises one or more lasers and an isotropic or anisotropic medium for photon processing and distribution. An exemplary method comprises determining the target locations for sound pressure wave recording, manipulating or creation; transmitting photons to the target locations; transferring photon energy to media particles to create or manipulate a sound pressure wave; or transferring energy of media particles to photons for recording or manipulating a sound pressure wave.

The surface sound speaker using electrowetting

본 발명은 전기 습윤 효과를 이용하여 박막을 진동하는 음향 스피커에 관한 것으로, 종래의 음향 스피커 방식에 비하여 적은 전력과 크기, 특히 매우 얇은 두께의 스피커가 가능하도록 하여 휴대용 기기, 대형 디스플레이, 벽걸이형 스피커 등에 적용할 수 있는 전기 습윤 효과를 이용한 평판형 스피커에 관한 것이다. 이러한 본 발명은, 전기 전도성의 제1판과; 상기 제1판에 대향하여 위치하며, 진동 필름으로 작용하는 전기 전도성의 제2판과; 상기 제1판과 제2판 사이 공간의 적어도 일부를 채우는 액체 방울을 포함하여 구성되는 것을 특징으로 한다. The present invention relates to an acoustic loudspeaker that vibrates a thin film using an electrowetting effect, and more particularly, to a loudspeaker having a small size and a very small thickness, The present invention relates to a flat-type speaker using an electrowetting effect that can be applied to a flat-type speaker. This invention comprises a first electrically conductive plate; An electrically conductive second plate facing the first plate and acting as a vibrating film; And a liquid droplet filling at least a part of the space between the first plate and the second plate. 스피커, 전기 습윤 효과, 패널, 필름, 액체. Speaker, electric wetting effect, panel, film, liquid.

Patent FR2442565B1

Capillary electrometer apparatus

Spherical loudspeaker for omnipresent sound reproduction

A highly compact loudspeaker system having a spherical housing produces time and phase coherent sound waves in an omnipresent manner throughout a spatial listening environment. Within is a relatively low frequency sound driver and a relatively high frequency sound driver. The spherical housing has upper and lower hemispherical halves. The upper half is hollow and has holes through its surface over most of its surface. The lower half forms a sound compression propagation vacuum chamber for the low frequency driver. Mounted within the lower half is a crossover network conventionally connected to the sound drivers. Acoustic foam lines the interior wall surface of the lower half. The low frequency sound driver is mounted inverted, into the open end of the lower half, and then sealed air tight, at a lowered atmospheric pressure, while the high frequency sound driver is mounted upwardly, affixed to the backside of the low frequency driver.

Sensor system for measuring acceleration and pressure

Techniques are disclosed relating to sensors configured to measure acceleration and pressure. In various embodiments, an apparatus includes a first hydrophone sensor having a first piezoelectric material and a first housing structure and a second hydrophone sensor having a second piezoelectric material and a second housing structure. In some embodiments, the apparatus includes a first pair of wires configured to provide a first differential voltage and a second pair of wires configured to provide a second differential voltage. The first pair of wires may be coupled to the first hydrophone sensor and the second pair of wires may be coupled to the second hydrophone sensor. In various embodiments, the apparatus is configured to determine, based on the first and second differential voltages, a pressure and an acceleration experienced by the first and second hydrophone sensors.

Hearing device

A hearing device includes a loudspeaker having a loudspeaker diaphragm for generating acoustic signals, a drive or actuator acting on the loudspeaker diaphragm, and a loudspeaker housing in which the drive or actuator and the loudspeaker diaphragm are accommodated. A housing encloses a housing interior. A loudspeaker box is disposed in the housing interior and has a sound outlet opening coupled with a sound conductor leading out of the housing. The loudspeaker is sealed in the loudspeaker box against the housing interior in a fluid-tight manner. The loudspeaker is disposed in the loudspeaker box clear or free of a sound channel element, disposed within the loudspeaker box and coupling the loudspeaker with the sound outlet opening.

Hydrostatic speaker and speaker driver

A hydrostatic speaker includes an oscillator (4), a partition diaphragm (5) disposed in the oscillator (4) to divide the oscillator (4) into two chambers (6, 7), at least one (6) of which chambers (6, 7) seves as a fluid chamber to cause the partition diaphragm (5) to vibrate in response to external signals from a source (12), an acoustic sound radiation core (1) connected with the partition diaphragm (5) via a rod (9), a sensor (10) for detecting fluid pressure in the fluid chamber (6) and another sensor (11) for detecting a movement of the diaphragm (5). The hydrostatic speaker is provided with a speaker driver which includes a fluid pressure controller (14) connected to a pressure source (17) for controlling the fluid pressure in the fluid chamber (6), and a control amplifier (13) for controlling the fluid pressure controller (14) in accordance with the external signals. Signals detected by the pressure sensor (10) and the position sensor (11) are respectively input as feedback signals to the control amplifier (13) in order to improve controllability, to reduce noise due to pressure fluctuation in the pressure source (17), and to improve a neutral positioning of the diaphragm (5). The hydrostatic speaker can radiate super low-­frequency sound, which has been considered difficult by conventional speakers.

Parametric signal processing systems and methods

A signal processing system for generating a parametric signal comprises an audio compressor, operable to compress a dynamic range of an audio input signal, and an equalization network, operable to equalize the audio signal. A low pass filter is operable to remove high portions of the audio signal and a high pass filter is operable to remove low portions of the audio signal. An oscillator circuit is operable to generate a carrier signal, and a modulation circuit is operable to combine the audio signal with the carrier signal to produce at least one modulated carrier signal.

Method and structure for inducing acoustic signals and attenuating acoustic signals

At least embodiment is directed to an earpiece comprising a housing; and a field responsive fluid, where the field responsive fluid is in the housing, where the housing is part of the earpiece, and where the earpiece is configured to vary a field to vary an acoustical property of the field responsive fluid.

Capillary transducer

Speaker device

High-pressure water resist microspeaker with improved coil structure

본 발명은 슬림형 고압 방수 마이크로스피커의 중역 SPL의 향상을 위해 알루미늄 코일로 제조되는 보이스 코일을 사용하면서도, 보이스 코일 리드 와이어의 단선을 막을 수 있는 신뢰성 높은 구조를 제공하는 것을 목적으로 한다. 본 발명은 프레임, 프레임의 하면에 결합되는 요크, 요크 상에 부착되는 내측 마그넷, 요크 상에 부착되며, 내측 마그넷의 양 측에 배치되는 한 쌍의 외측 마그넷, 내측 마그넷 상에 부착되는 내측 탑 플레이트, 한 쌍의 외측 마그넷 상에 부착되는 사각 링 형상의 외측 탑 플레이트, 내측 마그넷과 외측 마그넷 사이의 에어 갭에 하단이 위치하는 보이스 코일, 프레임의 외측면에 부착되며, 일부는 프레임의 내측으로 연장되고, 일부는 프레임의 외부로 연장되는 FPCB, 프레임의 내측면에 부착되는 측면과, 측면을 가로지르도록 연장되는 진동면을 구비하는 사이드 진동판, 사이드 진동판의 중앙에 부착되는 센터 진동판 및 프레임의 상면에 결합되며, 사이드 진동판의 측면을 덮는 그릴을 포함하며, 보이스 코일의 상단은 사이드 진동판과 센터 진동판이 겹치는 위치에 부착되고, 보이스 코일의 하단은 프레임 내측으로 연장된 FPCB의 일부에 의해 지지되는 것을 특징으로 하는 코일 구조가 개선된 고압 방수 마이크로스피커를 제공한다. It is an object of the present invention to provide a highly reliable structure that can prevent disconnection of a voice coil lead wire while using a voice coil made of an aluminum coil for improving mid-range SPL of a slim type high-pressure waterproof micro speaker. The present invention relates to a magnetic bearing device comprising a frame, a yoke coupled to a lower surface of the frame, an inner magnet attached to the yoke, a pair of outer magnets attached on both sides of the inner magnet, , A square ring-shaped outer top plate attached on a pair of outer magnets, a voice coil having a lower end positioned in an air gap between the inner magnet and the outer magnet, a part of the voice coil attached to the outer surface of the frame, A side diaphragm having a side surface attached to the inner side surface of the frame and a vibration surface extending across the side surface; a center diaphragm attached to the center of the side diaphragm; And a grille covering the side surface of the side diaphragm, wherein an upper end of the voice coil is formed by overlapping the side diaphragm and the center diaphragm It is attached to a position and, at the bottom of the voice coil provides the coil structure, there is a need for an improved high pressure resistant micro-speaker, characterized in that supported by a portion of the FPCB extends ...

Telephone-transmitter.

Low frequency loudspeaker system

Apparatus for and method of synchronously recording and reproducing sounds and pictures

Transmission of Sound Waves.

4912. Tigerstedt, E. M. C. March 30, 1914, [Convention date]. Audible signals.-Sounds are transmitted by impressing them as amplitude-variations on a stream of air waves of super-audible frequency. The waves from a high-frequency siren b, for instance, may be modified by a diaphragm c operated by a magnet d or mouthpiece d'.

Electronic device including speaker

Speaker with air valve

A radio apparatus comprising an agglomeration of acoustically adsorbing members

An apparatus comprising an agglomeration of acoustically adsorbing members suitably located substantially on or in a non-conductive support, wherein each acoustically adsorbing member is separated from neighbouring members.

External ear canal pressure regulation system

An external ear canal pressure regulation device including a fluid flow generator and an earpiece having a first axial earpiece conduit fluidicly coupled to the fluid flow generator, whereby the earpiece has a compliant earpiece external surface configured to sealably engage an external ear canal as a barrier between an external ear canal pressure and an ambient pressure.

Speaker system and the electronic equipment for using the speaker system

本发明提供扬声器系统和使用该扬声器系统的电子设备。扬声器系统具备箱体、扬声器单元以及弹性体片材。扬声器单元设置于箱体内。弹性体片材具有树脂制的第一纤维和树脂制的第二纤维，且设置于箱体内。第二纤维比第一纤维粗，并且与第一纤维缠在一起。

Sound-reproducing arrangement

Acoustic enclosure system attenuated by liquid

External ear canal pressure regulation system

An external ear canal pressure regulation device including a fluid flow generator and an earpiece having a first axial earpiece conduit fluidicly coupled to the fluid flow generator, whereby the earpiece has a compliant earpiece external surface configured to sealably engage an external ear canal as a barrier between an external ear canal pressure and an ambient pressure.

Tuning method of earphone, computer equipment and storage medium

本申请揭示了一种耳机的调音方法、耳机、计算机设备和存储介质，其中方法包括：在第一用户当前佩戴耳机的耳朵内播放处于指定频率范围的正弦波扫频信号；通过气压测量传感器获取第一用户当前佩戴耳机的耳朵的耳道内的第一气压曲线；获取预存储的仿真人头标准气压曲线以及仿真人头标准频响曲线；根据第一气压曲线、仿真人头标准气压曲线以及仿真人头标准频响曲线，计算出与第一用户对应的第一频响曲线。本申请能够简单快捷地计算出与第一用户对应的第一频响曲线，实现了对于耳机音质的智能调节，使得不同用户在使用耳机时均能达到最佳的听感效果，有效地提高了用户使用体验。

Acoustic device and acoustic system

Radio apparatus comprising an agglomeration of adsorbing members and corresponding method

Open ear canal hearing aid

본 발명은 보청기능을 제공하는 시스템 및 방법을 제공한다. 개방형 이도 보청장치가 본 발명의 실시 예에 따라서 제공될 수 있다. 상기 보청장치는 전자 부품들을 수용하는 부분, 수동 증폭기 및 고정 메카니즘을 포함할 수 있다. 상기 고정 메카니즘은 강모들 또는 풍선들을 포함할 수 있다. 상기 고정 메카니즘은 다양한 구조를 가질 수 있고, 조절가능하다. 몇몇 실시 예에서, 상기 보청장치는 뼈 전도 및 공기 전도를 통하여 음을 전달할 수 있다. The present invention provides a system and method for providing hearing aid capability. An open iso hearing aid may be provided according to an embodiment of the present invention. The hearing aid may include a portion that accommodates electronic components, a passive amplifier, and a fixing mechanism. The fixation mechanism may comprise bristles or balloons. The fixation mechanism can have various structures and is adjustable. In some embodiments, the hearing aid can deliver sound through bone conduction and air conduction.

External ear canal pressure regulation system.

Un dispositivo de regulación presión del canal auditivo externo que incluye un generador de flujo de fluido y un auricular que tiene un primer conducto axial de auricular acoplado directamente al generador de flujo de fluido, por lo que el auricular tiene una superficie externa compatible de auricular configurada para acoplar de manera sellable un canal auditivo externo como una barrera entre una presión de canal auditivo externo y una presión ambiente.

Loudspeaker with pressure compensation element

A loudspeaker includes a sound transducer, a housing and a unit configured to influence the temperature, such as a pressure compensation element. The sound transducer includes a membrane, the membrane enclosing a gas volume along with the housing. The sound transducer is configured to cause the membrane to vibrate, so that the gas volume is changed in accordance with the vibration. The unit configured to influence the temperature is configured to counteract a change of state, which is due to the membrane vibration, by means of a change in temperature of the gas volume.

Pressure-sensitive sensor

The present invention achieves a pressure-sensitive sensor which can detect information on a pressure, a sound pressure, acceleration, gas and the like, with high sensitivity. The pressure-sensitive sensor includes: a cantilever ( 22 ); a frame ( 23 ) which is provided around the cantilever ( 22 ) and holds a base end of the cantilever ( 22 ); a gap ( 24 ) formed between the cantilever ( 22 ) and the frame ( 23 ); and a liquid ( 28 ) which seals the gap ( 24 ).

Loud-speaker

Spherical loudspeaker for omnipresent sound reproduction

A highly compact loudspeaker system having a spherical housing produces time and phase coherent sound waves in an omnipresent manner throughout a spatial listening environment. Within is a relatively low frequency sound driver and a relatively high frequency sound driver. The spherical housing has upper and lower hemispherical halves. The upper half is hollow and has holes through its surface over most of its surface. The lower half forms a sound compression propagation vacuum chamber for the low frequency driver. Mounted within the lower half is a crossover network conventionally connected to the sound drivers. Acoustic foam lines the interior wall surface of the lower half. The low frequency sound driver is mounted inverted, into the open end of the lower half, and then sealed air tight, at a lowered atmospheric pressure, while the high frequency sound driver is mounted upwardly, affixed to the backside of the low frequency driver.

Pneumatic speaker with constant fluid flow

Detecting noise on flow controls

A monitor device that is configured for use on flow controls and like industrial devices. The embodiments may include a resonator that is sensitive to vibrations on the flow control. The resonator may generate a non-electrical signal, like pressure waves. This non-electrical signal can transit a conduit to a sensor that can convert the pressure waves into an electrical signal. On valve assemblies, a controller can process the electrical signal to detect potential health or maintenance issues. The controller may, in turn, generate an alert to prompt operators to perform maintenance on the flow control.

Improved parametric signal processing and emitter systems and related methods

A signal processing system (10) for generating a parametric signal comprises an audio compressor (14a, 14b), operable to compress a dynamic range of an audio input signal, and an equalization network (16a, 16b), operable to equalize the audio signal. A low pass filter (18a, 18b) is operable to remove high portions of the audio signal and a high pass filter (20a, 20b) is operable to remove low portions of the audio signal. An oscillator circuit (22 a, 22b) is operable to generate a carrier signal, and a modulation circuit (23) is operable to combine the audio signal with the carrier signal to produce at least one modulated carrier signal.

Art of telephoning

A radio apparatus comprising an agglomeration of acoustically adsorbing members

流体てこアクチュエータ

Pneumatic acoustic transducer with ferromagnetic fluid valve

A novel acoustic transducer utilizing a source of compressed air, the discharge of which is modulated by a ferromagnetic fluid. The ferromagnetic fluid is positioned in a magnetic gap, the intensity of which is modulated by a voice coil which in turn is activated by a varying current.

GEHÄUSE FÜR MIKROFONARRAYS UND MEHRSENSORANORDNUNGEN FÜR IHRE GRÖßEN-OPTIMIERUNG

External loudspeaker and electronic device with the same

An external loudspeaker includes a holding member and a speaker. The holding member includes two clamping portions and a mounting portion located between the two clamping portions, the mounting portion defining a through hole and includes a latching ring. The speaker includes a sealing portion. The sealing portion is deformedly received in the through hole. The sealing portion defines a latching groove, and the latching ring is latched in the latching groove.