| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 181157000 | DIAPHRAGM | 71 |
| 20080202845 | Membrane with a High Resistance Against Buckling and/or Crinkling - A membrane ( | 08-28-2008 |
| 20080230304 | Membrane for an Electroacoustic Transducer - A membrane ( | 09-25-2008 |
| 20080277195 | Engine and technique for generating an acoustic signal - A device for generating an acoustic signal in a fluid includes an engine operable to repeat a thermodynamic process to vibrate a membrane of the engine to generate an acoustic signal having more than one period. The thermodynamic process includes heating mass inside a chamber of an engine to generate pressure inside the chamber; in response to generating the pressure, moving in a first direction a portion of a membrane of the engine; removing mass from inside the chamber to decrease the pressure inside the chamber; and in response to decreasing the pressure inside the chamber, moving the membrane portion in a second direction. Because the engine repeats the thermodynamic process, the engine can generate and sustain an acoustic signal for a significant amount of time. In addition, because the heat in the engine's chamber is generated by a chemical reaction, the engine may quickly generate a significant amount of pressure inside the chamber to quickly accelerate the membrane, and thus generate a powerful acoustic signal. Furthermore, various properties of the membrane and/or the thermodynamic process may be modified to tune the acoustic signal to a desired frequency and/or amplitude. Thus, the engine may be effectively used to generate acoustic signals for a number of different purposes, such detecting and ranging objects in a region, and in a number of different marine environments, such as a littoral environment that contains a large amount of noise, or a deep sea environment at high water pressure. | 11-13-2008 |
| 20080277196 | Engine and technique for generating an acoustic signal - A device for generating an acoustic signal in a fluid includes an engine operable to repeat a thermodynamic process to vibrate a membrane of the engine to generate an acoustic signal having more than one period. The thermodynamic process includes heating mass inside a chamber of an engine to generate pressure inside the chamber; in response to generating the pressure, moving in a first direction a portion of a membrane of the engine; removing mass from inside the chamber to decrease the pressure inside the chamber; and in response to decreasing the pressure inside the chamber, moving the membrane portion in a second direction. Because the engine repeats the thermodynamic process, the engine can generate and sustain an acoustic signal for a significant amount of time. In addition, because the heat in the engine's chamber is generated by a chemical reaction, the engine may quickly generate a significant amount of pressure inside the chamber to quickly accelerate the membrane, and thus generate a powerful acoustic signal. Furthermore, various properties of the membrane and/or the thermodynamic process may be modified to tune the acoustic signal to a desired frequency and/or amplitude. Thus, the engine may be effectively used to generate acoustic signals for a number of different purposes, such detecting and ranging objects in a region, and in a number of different marine environments, such as a littoral environment that contains a large amount of noise, or a deep sea environment at high water pressure. | 11-13-2008 |
| 20110232990 | VIBRATING BODY FOR SPEAKER AND SPEAKER DEVICE - A speaker vibrating body vibrated by a driving part includes a plurality of diaphragms vibratably supported by a static part supporting said driving part and a diaphragm connecting part, provided between a first diaphragm and a second diaphragm among said plurality of diaphragms, coupling said first diaphragm and said second diaphragm and synchronously moving said first diaphragm and said second diaphragm toward or away from each other. | 09-29-2011 |
| 20110240401 | CARBONACEOUS ACOUSTIC DIAPHRAGM AND METHOD FOR MANUFACTURING THE SAME - A carbonaceous acoustic diaphragm whose density is reduced while retaining the required stiffness is provided. Carbon nanofibers and spherical particles of PMMA are mixed into a carbon-containing resin such as a polyvinyl chloride resin, and the mixture is carbonized to vaporize the spherical particles of PMMA, thereby forming a porous structure having pores with the carbon nanofibers in a powdered form uniformly dispersed through amorphous carbon. By forming a multilayer structure by combining the porous layer with a layer that does not use PMMA, the density can be further reduced while retaining the stiffness. | 10-06-2011 |
| 20110315472 | INTAKE SOUND GENERATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - An intake sound generation apparatus for an internal combustion engine, including an introduction duct connected to an intake passage of an intake system of the engine, a vibration member including a diaphragm portion which is vibrated by intake pulsation in the intake system, and a bellows portion configured to promote vibration of the diaphragm portion, the vibration member being so disposed as to cover one end of the introduction duct, and a resonance duct having one end connected to the introduction duct through the vibration member and the other end opened to an outside of the intake sound generation apparatus, the resonance duct acting to increase and emit a sound pressure of intake sound produced by vibration of the vibration member. A central axis of at least one of the introduction duct and the resonance duct is located offset relative to a central axis of the vibration member. | 12-29-2011 |
| 20120061175 | Board Capable of Generating a Harmonic Sound - A board includes a board body having a striking face and first and second symmetric axes defined in the striking face and perpendicular to each other and intersect with each other at a center of the striking face. The body includes first and second edges symmetric to each other relative to the first symmetric axis. The body further includes first and second wavy edges symmetric to each other relative to the second symmetric axis. The striking face is surrounded by the first and second edges and the first and second wavy edges. When an area around the center of the striking face is stricken, a plurality of natural frequencies is generated. The overtones of the natural frequencies are approximately integer multiple of the fundamental frequency, providing a harmonic sound and enhancing the sweetness of the sound. | 03-15-2012 |
| 20120160597 | DIAPHRAGM AND SPEAKER USING SAME - A diaphragm is disclosed. The diaphragm includes a dome part, an edge part connected to an outer peripheral part of the dome part. The dome part includes a main body defining a first surface and a second surface opposite to the first surface, a first dome part connected to the first surface, and a second dome part connected to the second surface. | 06-28-2012 |
| 20130037342 | Electromagnetic Linear Actuators for Marine Acoustic Vibratory Sources - Disclosed are electromagnetic linear actuators used in acoustic vibratory sources for marine seismic surveying. An embodiment discloses a linear actuator for acoustic sources, comprising: magnetic circuitry comprising a gap; and a coil assembly comprising: a drive coil, wherein at least a first portion of the drive coil is configured to be moved in a linear path in the gap; a pair of ferromagnetic coil guides positioned on either side of the linear path; a first ferromagnetic extension extending laterally from the first portion of the drive coil; and a transmission element coupled to a top side of the first portion of the drive coil. Embodiments also disclose acoustic vibratory sources, marine seismic survey systems, and methods of marine seismic surveying. | 02-14-2013 |
| 20130056296 | MASS LOADING FOR PISTON LOUDSPEAKERS - A diaphragm for a loudspeaker including a plurality of masses, each mass being substantially the same radial distance from the centre of the diaphragm, the plurality of masses being divided into two arrays, each array including one or more individual masses, wherein, in use, at a selected frequency, the pair of arrays act to produce a dominant bending moment, and, the centre of the diaphragm lies substantially on the axis of the dominant bending moment, wherein, the dominant bending moment is the bending moment produced by the combination of masses which has the greatest magnitude, if they produce more than one bending moment. | 03-07-2013 |
| 20130161122 | VIBRATION-LEAD PLATE FOR FLAT TYPE SPEAKER, MOUNTED BETWEEN VOICE COIL PLATE AND VIBRATION PLATE - A vibration-lead plate for a flat speaker is mounted between a voice coil plate and a vibration plate for increasing vibrational efficiency and removing the lead wire of a voice coil. The vibration-lead plate includes: a coil plate-spline, mounted between a voice coil plate having a voice coil formed in the shape of a spiral track and a vibration plate to vibrate according to the movement of the voice coil plate for generating sound, and formed in the center so as to be adhered to the voice coil plate; an edge-spline, connected to one side of the coil plate-spline and the edge of the vibration plate so as to variably correspond to vibrations; and a vibration plate outside portion, connected to one side of the edge-spline and adhered to the outside portion of the edge of the vibration plate. | 06-27-2013 |
| 20130175112 | RADIAL WAVEGUIDE FOR DOUBLE CONE TRANSDUCERS - A radial waveguide assembly comprises a transducer section and a waveguide section. The transducer section includes first and second cone loudspeakers arranged coaxially and in an opposed relationship. A compression plug having two input surfaces is mounted between diaphragms of the cone loudspeakers. Channels from the first and second cone loudspeakers feed common sound chambers located in a belt around the circular perimeter where they connect to external ports. A radial, folded waveguide has a circular throat which connects to the external ports. | 07-11-2013 |
| 20140182965 | FLOW CONTROLLED SOUND GENERATION APPARATUS - A flow controlled sound generation system is disclosed that includes one or more fluid pumps to control air flow through a sound channel. The air flow is modulated through one or more valves to produce audible frequency pressure waves. | 07-03-2014 |
| 20140262599 | ACOUSTIC TRANSDUCERS - The invention generally relates to acoustic transducers. In certain aspects, the acoustic transducer includes a diaphragm and an actuator coupled to the diaphragm to cause movement of the diaphragm. The transducer includes a member that limits bending of the diaphragm. | 09-18-2014 |
| 20140284135 | DIAPHRAGM AND SPEAKER USING SAME - A diaphragm is disclosed in the present disclosure. The diaphragm includes a middle layer, a first and a second adhesive layer attached on two side surfaces of the middle layer respectively, and a first layer adhered to the middle layer by the first adhesive layer and a second layer adhered to the middle layer by the second adhesive layer. The first adhesive layer is made of acrylic adhesive and the second adhesive layer is made of silica gel. A speaker using the diaphragm described above is also disclosed. The diaphragm can be used in a relatively wide temperature range and has a strong adaptability to the environment. | 09-25-2014 |
| 20150136518 | COMPOSITE DIAPHRAGM - Provided is a composite diaphragm which includes a base layer and at least a graphyne including layer. The base layer has a central portion and a peripheral portion disposed at the periphery of the central portion. The graphyne including layer is disposed on the surface of the base layer. As graphyne is a lightweight and highly rigid material with a two-dimensional structure, composite diaphragms made of graphyne manifest characteristics, such as high stiffness, high toughness and low density, and thus achieve high practicability, such as high durability and high capability of producing high-definition tone. | 05-21-2015 |
| 20160088394 | MANUFACTURING METHOD FOR STIFFENED DIAPHRAGM AND THE MANUFACTURED DIAPHRAGM USING SAME - A stiffened diaphragm manufacturing method and the manufactured diaphragm using same are provided. The manufacturing method includes the steps of: applying a hot glue layer to a side of a stiffened plate; putting a base layer on the hot glue layer, and then heating and adhering the base layer and the stiffened plate together; and performing a pressing process on the base layer and the stiffened plate to form a diaphragm having a central portion and a surround portion. The stiffened plate is coated uniformly with the hot glue layer and then put on the base layer to undergo heating and adhesion; hence, an oversupply or undersupply of a glue will be unlikely to happen. Furthermore, the manufacturing process is simple and attains high-strength adhesion between the stiffened plate and the base layer. | 03-24-2016 |
| 181158000 | Microphone type | 1 |
| 20110266087 | Condenser Microphone - A condenser microphone includes a cylindrical microphone case having a condenser microphone unit therein; a microphone connector having an insulating base, one ground pin and two signal pins are embedded in the microphone connector; and a cylindrical connector sleeve fitted in the microphone case and accommodating the microphone connector therein, in which the connector sleeve has a concave-convex part on the outer peripheral surface thereof, the concave-convex part is in contact with the inner peripheral surface of the microphone case at a plurality of points after the connector sleeve is fixed into the end of the microphone case by fixing means, and thereby the connector sleeve is electrically conducted with the microphone case. | 11-03-2011 |
| 181160000 | With resonant chamber | 2 |
| 20090236171 | INTAKE AIR SOUND GENERATION DEVICE - An intake air sound generation device | 09-24-2009 |
| 20100294588 | RECOILLESS SPEAKER SYSTEM - The present invention provides a recoilless speaker system capable of reducing adversely affecting vibration and generating an accurate and strong sound, and contributing to the realization of lighter weight, miniaturization and lower cost related to manufacturing, and also capable of being installed in a suspended state and generating sound even under zero gravity as long as air exists. | 11-25-2010 |
| 181161000 | With direct mechanical connection to drive unit | 2 |
| 20130264142 | COUPLING ELEMENT OF AN ULTRASONIC TRANSDUCER FOR AN ULTRASONIC, FLOW MEASURING DEVICE - A coupling element of an ultrasonic transducer suitable for mode conversion of an acoustic longitudinal wave between an in-coupling surface and an out-coupling surface of the coupling element. The coupling element has a first and second interface with a predetermined medium. A first angle between the in-coupling surface and the first interface and a second angle between the first interface and the out-coupling surface are so selected that a transverse waves fraction is reflected on the first interface to the out-coupling surface. The first angle between the in-coupling surface and the first interface and a third angle between the first interface and the second interface are so selected that a longitudinal wave fraction is reflected on the first interface for second interface. A fraction of the longitudinal waves reflected to the second interface is reflected on the second interface back into the coupling element. | 10-10-2013 |
| 20140367192 | VIBRATION ABSORBING MOUNTING DEVICE - A vibration absorbing mounting device may include an outer housing, a mounting shaft, a core, a first nozzle valve spaced apart from and disposed below the core, an inner housing spaced apart from one side and the other side of the core, with the first nozzle valve being mounted to the inner housing, and a chamber separator fixed to the core and brought into close contact with and sliding on the first nozzle valve, wherein the chamber separator forms a first chamber and a second chamber, and an elastic member formed between the core and the inner housing and between the inner housing and the outer housing, wherein fluid is filled in the first chamber and the second chamber, and a first nozzle fluidly-connecting the first and second chambers is formed in the first nozzle valve. | 12-18-2014 |
| 181164000 | Sectional diaphragm | 4 |
| 20100044147 | MICROELECTROMECHANICAL SYSTEM DIAPHRAGM AND FABRICATING METHOD THEREOF - A microelectromechanical system diaphragm is provided. The microelectromechanical system diaphragm includes a substrate, a first conductive layer, a second conductive layer, a first dielectric layer, and a second dielectric layer. The first conductive layer is disposed on the substrate. The first conductive layer has a flexible portion in which a plurality of trenches is formed. The second conductive layer is disposed between the first conductive layer and the substrate, in which the flexible portion is located above the second conductive layer. The first dielectric layer is disposed between the second conductive layer and the substrate. The second dielectric layer is disposed between the substrate and a portion of the first conductive layer so as to suspend the flexible portion. Furthermore, at least one first opening is formed in the first conductive layer. | 02-25-2010 |
| 20100236861 | DIAPHRAGM OF ELECTRO-ACOUSTIC TRANSDUCER - A diaphragm of an electro-acoustic transducer is provided. The diaphragm of the electro-acoustic transducer includes a central portion and a peripheral portion. The rigidity of the central portion is greater than the peripheral portion, such that the diaphragm has different rigidity characteristics, and thus gets better high-frequency performance and better sensitivity. | 09-23-2010 |
| 20160014520 | SPEAKER DIAPHRAGM | 01-14-2016 |
| 181165000 | Concentric annular section | 1 |
| 20160142823 | MEMBRANE AND METHOD FOR PRODUCING DIAPHRAGM, AND COMPOSITE DIAPHRAGM - A membrane and a method for producing a diaphragm, and a composite diaphragm are provided. The MCPET material is a MCPET baffle with micropores independent from each other; wherein an average size of the micropore is smaller than or equal to 5 μm, a foaming rate of the MCPET baffle is less than 2 times, and a density of the MCPET baffle is less than 300 kg/m3. The MCPET baffle is further processed by means of layered cut to form the membrane that is thinner than the MCPET baffle. At least one surface with micropores is exposed to form a micropore exposed surface. The membrane is heated under a temperature of 130-140° C. to form the diaphragm. The composite diaphragm includes a main diaphragm and an auxiliary diaphragm, wherein the main diaphragm is made of the membrane of the present application. The diaphragm made of the membrane has a superior sound performance. | 05-19-2016 |
| 181166000 | With damping means | 5 |
| 20100224437 | Optically Clear Diaphragm For An Acoustic Transducer And Method For Making Same - The present disclosure relates to a diaphragm that may be used with a mechanical-to-acoustical transducer. The diaphragm may include a layer of optically clear film, a damping layer and another layer of optically clear film. The damping layer may be an adhesive. The diaphragm may also comprise two optically clear films, optionally including a damping layer, wherein the films indicate a desired coefficient of linear thermal expansion in one or both of the machine and transverse directions. | 09-09-2010 |
| 20120186903 | OPTICALLY CLEAR DIAPHRAGM FOR AN ACOUSTIC TRANSDUCER AND METHOD FOR MAKING SAME - The present disclosure relates to a diaphragm that may be used with a mechanical-to-acoustical transducer. The diaphragm may include a layer of optically clear film, a damping layer and another layer of optically clear film. The damping layer may be an adhesive. The diaphragm may also comprise two optically clear films, optionally including a damping layer, wherein the films indicate a desired coefficient of linear thermal expansion in one or both of the machine and transverse directions. | 07-26-2012 |
| 20130133975 | ACOUSTIC TRANSDUCER DEVICE - The present invention relates to a sound converter, and, more particularly, to a sound converter which can solve a problem in that a vibration space decreases in the sound converter requiring high outputs, as the overall height of a voice coil increases. | 05-30-2013 |
| 20130146387 | DUAL BORE CANALPHONE SYSTEM - A canalphone system may include a high frequency sound bore carried within a canalphone. The system may also include a low frequency sound bore adjacent to the high frequency sound bore to form a single unit, the low frequency sound bore and the high frequency sound bore being sized so that the low frequency sound bore and the high frequency sound bore each deliver sound with similar time and phase. The system may further include a high acoustical driver carried within the canalphone where the high acoustical driver delivers sound through the high frequency sound bore. The system may additionally include a low acoustical driver carried within the canalphone where the low acoustical driver delivers sound through the low frequency sound bore. | 06-13-2013 |
| 20140102825 | SPEAKER DAMPER AND MANUFACTURING METHOD OF THE SAME - A damper speaker includes a fiber cloth woven by fibers, each of the fibers is formed by a single fiber strand or several fiber strands. The fiber strand includes a first fiber, which is one or a combination of cotton, polyester and aramid fiber. When the first fiber is the combination of cotton, polyester and aramid fiber, the weight ratio of any one to the fiber cloth is 0˜100%, and the weight ratio of the other two is adjusted. When the weight ratio of the first fiber to the fiber cloth is less than 100%, the fiber cloth includes a second fiber, which is one or a combination of rayon, silk, flax, acrylic, rubber and synthetic fiber. The speaker damper includes a layer of resin, which is absorbed by and combined with the fiber cloth. The fiber cloth is then cut into a predetermined shape through a molding means. | 04-17-2014 |
| 181167000 | Critically defined material or coating | 19 |
| 20080257638 | Production method of an acoustic diaphragm, acoustic diaphragm, and a speaker - A method of producing an acoustic diaphragm includes forming a workpiece having a shape of the acoustic diaphragm by using a natural material which can be carbonized by burning; forming a first film including phenol resin on a surface and an interior of the workpiece; heating the workpiece to bring the phenol resin into a high polymer state; burning the workpiece in a substantially anoxic atmosphere to carbonize the workpiece and the first film; and forming a second film including gelatin on at least one of a surface and an interior of carbonized workpiece. | 10-23-2008 |
| 20090045005 | Acoustic Diaphragm and Speakers Having the Same - Disclosed herein is an acoustic diaphragm for converting electrical signals into mechanical signals to produce sounds. The acoustic diaphragm comprises carbon nanotubes or graphite nanofibers as reinforcing agents. Preferably, the carbon nanotubes or graphite nanofibers are included or dispersed in the acoustic diaphragm or coated on the surface of the acoustic diaphragm. Since the acoustic diaphragm has excellent physical properties in terms of elastic modulus, internal loss, strength and density, it can effectively achieve superior sound quality and a high output in a particular frequency band as well as in a broad frequency band. | 02-19-2009 |
| 20110155501 | DIAPHRAGM FOR ELECTROACOUSTIC TRANSDUCER - An exemplary diaphragm includes a first member and a second member attached to the first member. The first member is made of polyetherimide, and the second member is made of polyethylene terephthalate. | 06-30-2011 |
| 20110284317 | SPEAKER DIAPHRAGM, SPEAKER, AND PRODUCTION METHOD OF SPEAKER DIAPHRAGM - A speaker diaphragm ( | 11-24-2011 |
| 20120043157 | THREE DIMENSIONAL ACOUSTIC PASSIVE RADIATING - A three dimensional acoustic passive radiator diaphragm. A diaphragm a three dimensional volume. An acoustic driver radiates pressure waves into the three dimensional volume to cause the diaphragm to expand and contract. The three dimensional passive radiator may include a core of a porous, compressible material. | 02-23-2012 |
| 20120325576 | DIAPHRAGM FOR ELECTRO-ACOUSTIC TRANSDUCER - A diaphragm for electro-acoustic transducers, especially a diaphragm for speakers, and a film for the diaphragm excellent in the formability and the durability in high-output operation are obtained. A diaphragm for electro-acoustic transducers formed of a film that contains a polybiphenyl ether sulfone resin (A) having a specific repetitive unit or contains it and a crystalline resin (B) such as polyaryl ketone resin; and a film for use for the diaphragm. | 12-27-2012 |
| 20140054104 | SPEAKER DIAPHRAGM AND ITS MANUFACTURING METHOD - A speaker diaphragm structure includes a speaker diaphragm and a coating formed on the speaker diaphragm and is composed of at least one dense layer and relatively porous layer alternately arranged with respect to the at least one dense layer. | 02-27-2014 |
| 20140083795 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present disclosure provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a polyetherimide film, and a thermoplastic polyurethance elastomer attached to one surface of the polyetherimide film. | 03-27-2014 |
| 20150310848 | METHOD FOR MANUFACTURING COMPOUND DIAPHRAGM - The present disclosure provides diaphragm and a method for manufacturing the same. The diaphragm includes a first macromolecular material layer, a graphene layer, a glue layer and a second macromolecular material layer in sequence. The first macromolecular material layer is directly attached to the graphene layer, and the second macromolecular material layer is attached to the graphene layer via the glue layer. The strength and the stiffness of the diaphragm is enhanced to improve the acoustic performances of the diaphragm. | 10-29-2015 |
| 20160001109 | VOICE TRANSMITTER - Provided is a voice transmitter in a simple structure that can be manufactured at a low cost, and can make speech uttered by a wearer clearly hearable at the outside. In a voice transmitter unit that transmits the speech uttered by the wearer to the outside, a voice transmitter body of the voice transmitter unit includes: a diaphragm member able to transmit the speech from one side to the other side; and a holding member to hold at least a part of the diaphragm member, wherein the diaphragm member is formed of a heat-shrinkable material, and the diaphragm member is heated to be shrunk while the diaphragm member is held by the holding member, thereby holding the diaphragm member by the holding member while substantially an entire surface of the diaphragm member is tensed. | 01-07-2016 |
| 181168000 | Metallic material | 2 |
| 20140158456 | COATED SPEAKER DOME AND COATED DIAMOND PRODUCTS - The invention relates to a speaker dome comprising: a polycrystalline diamond dome body formed of a material of high stiffness with a Young's modulus greater than 50 GPa and having respective inner and outer surfaces; and a coating on at least one side of the dome body, wherein the coating comprises an optically refractive metal compound layer which is semi-transparent and which forms one or more colours via interference of reflected light from front and rear surfaces of the layer. The invention also relates to a diamond component comprising: a diamond body; and a coating on at least one side of the diamond body; wherein the coating comprises at-least two layers including a first layer bonded to the at least one side of the diamond body and a second layer disposed over the first layer, the second layer being an optically refractive metal compound coating which is semi-transparent and which forms one or more colours via interference of reflected light from front and rear surfaces of the second layer. | 06-12-2014 |
| 20150075900 | LOUDSPEAKER DIAPHRAGM AND LOUDSPEAKER USING SAME - The present invention relates to a type of vibrating membrane for speakers comprising the vibrating membrane body which comprises: A bottom layer used to reinforce the low frequency, a surface disposed on the said bottom layer, a composite metal layer used to ensure vibration uniformity, and a composite platy layer used for HF compensation disposed between the said bottom layer and the said composite metal layer. A type of speaker with the structure of the said vibrating membrane is also disclosed in the invention. Application of the vibrating membrane for speakers and the speaker using the said vibrating membrane as claimed in the invention could be such as to: enable excellent transient response speed, ensure vibration uniformity and obtain flat response in the working area; eliminate MF (medium frequency) and HF (high frequency) resonance to meet the full frequency band requirements of the headphone speakers; boast good flexural behavior to make the speaker structure more stable and less prone to deformation, thereby extending the service life and promoting the quality of the product. | 03-19-2015 |
| 181169000 | Fibrous material | 6 |
| 20100059309 | DIAPHRAGM FOR SPEAKER, FRAME FOR SPEAKER, DUST CAP FOR SPEAKER, SPEAKER AND APPARATUS USING THEM, AND METHOD FOR MANUFACTURING COMPONENT FOR SPEAKER - A speaker diaphragm is configured by a compound mixed with resin and bamboo fiber. The diaphragm satisfying the advantage of the bamboo fiber of high sound quality and a large degree of freedom in the setting of the characteristic value of the diaphragm and the advantage of the diaphragm made of a resin with improved humidity resistance reliability and strength, excellent external appearance, and enhanced productivity and dimension stability is obtained. | 03-11-2010 |
| 20100108433 | ELECTROACOUSTIC TRANSDUCER DIAPHRAGM - A method for manufacturing an electroacoustic transducer diaphragm of a multilayered structure which includes a first diaphragm layer made from a synthetic resin material and molded into a predetermined shape through injection molding, and a second diaphragm layer laminated in close contact with the first diaphragm layer and made from a material differing from that of the first diaphragm layer, the method includes inserting the second diaphragm layer into a mold for injection molding, and forming the first diaphragm layer integrally with the second diaphragm layer by injection foam-molding within the injection mold. | 05-06-2010 |
| 20100206659 | DIAPHRAGM FOR SPEAKER, SPEAKER USING THE DIAPHRAGM FOR SPEAKER, AND PROCESS FOR PRODUCING THE DIAPHRAGM FOR SPEAKER - A speaker diaphragm which includes a woven cloth which contains a thermosetting resin of thermo-cured state, and a paper board bonded and integrated with the woven cloth at the back surface. The woven cloth has its weave texture exposed on the front surface. The diaphragm has a high strength because it is made with a woven cloth; furthermore, its hardness is high because the thermosetting resin impregnated in woven cloth is in thermo-cured state. Thus the diaphragm helps implementing a speaker which demonstrates superior vibration characteristics in the high frequency sound region. | 08-19-2010 |
| 20100288579 | MEMBRANE HAVING MULTIPART STRUCTURE - The invention relates to a composition of a speaker membrane, consisting at minimum of the following layering sequence:
| 11-18-2010 |
| 20180027315 | ELECTRONIC DEVICE AND IMAGE FORMING DEVICE | 01-25-2018 |
| 20180027331 | ELASTIC COMPOSITE STRUCTURE FOR SPEAKER VIBRATING MEMBER | 01-25-2018 |
| 181170000 | Laminated type | 1 |
| 20110272208 | COMPOUND MEMBRANE AND ACOUSTIC DEVICE USING SAME - The present invention provides a compound membrane and an acoustic device including such a compound membrane. The compound membrane includes a central layer, a first glue layer attached to one side of the central layer, a second glue layer attached to another side of the central layer, an upper layer provided on the first glue layer, and a lower layer provided beneath the second glue layer. The anti-fatigue performance of the compound membrane is desirable. | 11-10-2011 |
| 181171000 | Mounting or suspension means | 12 |
| 20080277197 | DIAPHRAGM STRUCTURE FOR MICRO-ELECTROACOUSTIC DEVICE - A diaphragm structure ( | 11-13-2008 |
| 20090026007 | LOUDSPEAKER WITH AN ACOUSTIC MEMBER - A large-excursion loudspeaker ( | 01-29-2009 |
| 20090139794 | Diaphragm Surrounding - A surround for a diaphragm includes at least one rib section oriented to be extended during excursions of the diaphragm. The surround includes at least one membrane section supported by one or more rib sections contributing to a compliance characteristic different from the contribution of the one or more rib sections. | 06-04-2009 |
| 20130284537 | Acoustic Assembly with Supporting Members - An apparatus includes a top assembly, a bottom assembly, and a diaphragm assembly. The bottom assembly is coupled to the top assembly to form an overall assembly. The diaphragm assembly includes a ring and a diaphragm flexible member that is attached to the ring. The ring forms an opening and at least one strengthening member is disposed at least partially across the opening. The at least one strengthening member is configured to provide strength and maintain a predetermined compliance of the diaphragm flexible member. | 10-31-2013 |
| 20140318885 | BONDING STRUCTURE OF DIAPHRAGM FOR MICROSPEAKER - The present invention relates to an assembly structure of a diaphragm for a microspeaker. The present invention discloses a bonding structure of a diaphragm for a microspeaker, the boding structure comprising: a suspension including a central portion, an outer peripheral portion, and a connecting portion connecting the central portion and the outer peripheral portion; and a side diaphragm including an inner peripheral portion and an outer peripheral portion, which are attached to the central portion and outer peripheral portion of the suspension, respectively, and a dome portion, which projects between the inner peripheral portion and the outer peripheral portion, wherein the suspension and the side diaphragm are attached by thermal compression. | 10-30-2014 |
| 20160118032 | ACOUSTIC DEVICE SUSPENSION - An acoustic device includes a diaphragm, a frame, and a suspension element that couples the diaphragm to the frame such that the diaphragm is movable in a reciprocating manner relative to the frame. The suspension element includes a first surround element and a second surround element that are separated at respective outer edges by a first distance and separated at respective inner edges by a second distance. The first distance and the second distance are different. | 04-28-2016 |
| 20160119716 | SURROUND FOR DIAPHRAGM - A surround of a diaphragm is provided. Its cross-section looks like a raise with an opening which opens downward. A bottom rim of the raise defines a virtual standard plane. The raise includes a compliance adjusting portion and two stress sharing portions. The compliance adjusting portion is sags and disposed centrally at the raise. The stress sharing portions sag and flank the compliance adjusting portion symmetrically. Linking portions are connected between the compliance adjusting portion and the stress sharing portions, respectively. The compliance adjusting portion and the stress sharing portions do not cross the virtual standard plane. Therefore, the compliance adjusting portion and the stress sharing portions share the stress sustained by the surround, so as to effectively reduce the variation in rigidity of the diaphragm while the diaphragm is vibrating and thus minimize harmonic distortion. | 04-28-2016 |
| 20160205487 | VIBRATION MEMBRANE ASSEMBLY FOR SPEAKER, SPEAKER AND METHOD FOR PRODUCING THE ASSEMBLY | 07-14-2016 |
| 181172000 | Elastic suspension means | 4 |
| 20120160598 | ACOUSTIC DIAPHRAGM SUSPENDING - A suspension element for mechanically coupling an acoustic diaphragm to a stationary element. The suspension element is characterized by a total compliance. The total compliance includes a shear compliance and a beam compliance. The beam compliance is not significantly larger than the shear compliance. | 06-28-2012 |
| 20130306397 | Acoustic Diaphragm Suspending - A suspension element for mechanically coupling an acoustic diaphragm to a stationary element. The suspension element is characterized by a total compliance. The total compliance includes a shear compliance and a beam compliance. The beam compliance is not significantly larger than the shear compliance. | 11-21-2013 |
| 20140360806 | ADHESIVE FREE ATTACHMENT OF TRANSDUCER SUSPENSION MEMBER - The present invention relates to a suspension member for suspending a moveable piston structure of a transducer, the suspension member comprising an attachment region comprising an elastomeric material, wherein at least part of the attachment region is shaped in a manner so as to be able to attach to a fixed portion of the transducer in an adhesive free manner. Moreover, the present invention relates to a suspension member comprising an integrated tolerance compensation means. | 12-11-2014 |
| 20160119717 | SUSPENSION FOR ACOUSTIC DEVICE - An acoustic device includes a diaphragm, a frame, and a suspension element that couples the diaphragm to the frame such that the diaphragm is movable in a reciprocating manner relative to the frame. The suspension element includes a first surround element and a second surround element that have respective inner landings between which a region proximal to an outer edge of the diaphragm is disposed. The inner landings are mechanically coupled by an adhesive material disposed along an inner periphery of the suspension element. The adhesive material has a viscoelastic response that increases stiffness as frequency increases, resulting in a shift of a first breakup mode of the acoustic device from a first frequency to a second, higher frequency. | 04-28-2016 |
| 181173000 | Particular shape | 8 |
| 20090014233 | Diaphragm, spherical-shell diaphragm and electroacoustic transducer, and method of manufacturing electroacoustic transducer - A diaphragm in one mode of the present invention comprises an outer shape section having a circle with one diameter, or a shape of a polygon to be inscribed in a circle with the one diameter; an inner shape section protruding in one direction with regard to a plane including the outer shape section, wherein a shape formed by projecting the inner shape section on the plane is rotationally symmetric about the central axis of the circle; and a vibrating face section linking the outer shape section and the inner shape section and having an inclined face inclined to the central axis, wherein any one of cross-sectional shapes of the vibrating face section is rotationally symmetric about an eccentric axis which is eccentric with regard to the central axis, the cross-sectional shapes being defined by a plane intersecting perpendicularly to the central axis. An electroacoustic transducer uses the above diaphragm. | 01-15-2009 |
| 20110031061 | Electroacoustic Transducer - Provided is an electroacoustic transducer having a diaphragm ( | 02-10-2011 |
| 20110155502 | RING SHAPED MEMBRANE FOR AN ELECTRO-ACOUSTICAL LOUDSPEAKER - Ring-shaped membrane for an electro-acoustical loudspeaker, where said membrane comprises two or more dome-shaped annulus concentrically arranged around a central portion through which an imaginary axis of symmetry passes, where an outer periphery of said membrane is suitable to be attached to a surround; where the central portion is attached to a tower, which again is fastened to the loudspeakers driver, wherein the angle between a plane being perpendicular to the axis of symmetry and the attachment of the membrane to the surround resp. the tower is in the interval 0° to 40°, most preferred around 30°. | 06-30-2011 |
| 20120181105 | RING SHAPED MEMBRANE FOR AN ELECTRO-ACOUSTICAL LOUDSPEAKER - Ring-shaped membrane for an electro-acoustical loudspeaker, where said membrane comprises two or more dome-shaped annulus concentrically arranged around a central portion through which an imaginary axis of symmetry passes, where an outer periphery of said membrane is suitable to be attached to a surround; where the central portion is attached to a tower, which again is fastened to the loudspeakers driver, wherein the angle between a plane being perpendicular to the axis of symmetry and the attachment of the membrane to the surround resp. the tower is in the interval 0° to 40°, most preferred around 30°. | 07-19-2012 |
| 20130056297 | DIAPHRAGM OF MEMS ELECTROACOUSTIC TRANSDUCER - A diaphragm of an MEMS electroacoustic transducer including a first axis-symmetrical pattern layer is provided. Because the layout of the first axis-symmetrical pattern layer can match the pattern of the sound wave, the vibration uniformity of the diaphragm can be improved. | 03-07-2013 |
| 20150341725 | ELECTROACOUSTIC TRANSDUCER - An electroacoustic transducer includes a diaphragm including: a wing-pair portion; and a cone portion. The wing-pair portion includes a pair of convex surfaces having respectively convex surfaces of a pair of longitudinal split tubular members. A valley is formed between one side portions of the pair of convex surfaces. The cone portion surrounds an outer peripheral portion of the wing-pair portion and extends in a conical shape. The electroacoustic transducer further includes: a converter configured to convert between a vibration of the diaphragm in a depth direction of the valley and an electric signal corresponding to the vibration; and a supporter supporting an outer peripheral portion of the cone portion to allow the diaphragm to vibrate in a direction of the vibration. | 11-26-2015 |
| 20160050496 | DIAPHRAGM HAVING IMPROVED SURROUND STRUCTURE - A diaphragm is formed of a central portion and a surround encircling and connected with the central portion. The surround is provided with an arc-shaped section and includes a concavity. An imaginary datum plane is defined by an external edge of the concavity. In sectional view, two ends of an external side of the surround extend away from the datum plane to intersect with each other to define an imaginary end point. The surround further includes an annular flexible portion located between the end point and the datum plane. In light of the structure disclosed above, the diaphragm can adjust the rigidity of the surround by means of the annular flexible portion to make the displacement amount of the central portion consistent with the rigidity of the diaphragm, so the speaker can output the same acoustic pressure to improve the acoustic distortion and noise that may occur potentially. | 02-18-2016 |
| 181174000 | Variable thickness | 1 |
| 20130043090 | DIAPHRAGM OF ELECTRIC SOUND CONVERTER AND ITS MANUFACTURING METHOD - In a diaphragm of an electric sound converter which converts vibration such as sound into an electrical signal, a center dome is reinforced while suppressing variations in the sensitivity and frequency response to the minimum, whereby reduction in a high-pass reproduction limit is suppressed, and occurrence of anomalous resonance is prevented. In a diaphragm | 02-21-2013 |
