Abstract: Articles and methods are provided for miniature acoustic transducers having highly compliant suspension systems despite their small size. In various examples the suspension system is molded of a liquid silicone rubber (LSR) and is molded in an interior cavity geometry that includes and apex radially offset and/or axially offset from a desired cured position of an apex of the suspension.

Abstract: The present invention provides methods and systems for a surround device that includes a generally circular arcuate portion that contains a first side and a second side, a first planar portion extends from the first side and a second planar portion extends from the second side, a plurality of outwardly facing ribs are disposed on the first side, and a plurality of inwardly facing ribs are disposed on the second side.

Abstract: A speaker and a method for manufacturing the speaker are provided. The speaker includes: a vibration unit; a magnetic circuit unit; and a housing for receiving the vibration unit and the magnetic circuit unit. The vibration unit includes: a first diaphragm fixed to the housing; a voice coil arranged under the first diaphragm to drive the first diaphragm to vibrate and emit sound; and an elastic support member arranged under the voice coil, fixed to the housing and elastically supporting the voice coil. The elastic support member includes a flexible circuit board connected to the voice coil and a second diaphragm fixed under the flexible circuit board. The housing includes a holder, the elastic support member is fixed to the holder, and the flexible circuit board is attached and fixed to the second diaphragm.

Abstract: The present invention sets out to solve the problems above by presenting a dual-mode speaker system for acoustic reproduction. The dual-mode speaker system for acoustic reproduction presents a system with high-energy conversion efficiency and provides flexibility between an active speaker driver and other radiators, improved sound quality, a larger range of low frequency sounds, and the capability to improve audio frequency playback range in small-scale audio environments. A dual-mode acoustic radiator speaker system is provided having an enclosure with a plurality of openings, an active speaker driver having a first motor assembly and a dual-mode radiator having a second motor assembly. In some embodiments, the dual-mode acoustic radiator speaker system further comprises one or more passive radiators adjoined to the enclosure. Next, within the dual-mode acoustic radiator speaker system a power supply is connected to the electronic signal processing and amplification system.

Abstract: A transducer assembly including a frame, a diaphragm positioned within the frame, a surround connecting the diaphragm to the frame, the surround having a corner section and a plurality of corrugations formed within the corner section, wherein each corrugation of the plurality of corrugations comprises a length dimension perpendicular to a line of maximum stress intersecting a radial axis of the corner section, a voice coil extending from one side of the diaphragm and a magnet assembly having a magnetic gap aligned with the voice coil.

Abstract: The present invention sets out to solve the problems above by presenting a dual-mode speaker system for acoustic reproduction. The dual-mode speaker system for acoustic reproduction presents a system with high-energy conversion efficiency and provides flexibility between an active speaker driver and other radiators, improved sound quality, a larger range of low frequency sounds, and the capability to improve audio frequency playback range in small-scale audio environments. A dual-mode acoustic radiator speaker system is provided having an enclosure with a plurality of openings, an active speaker driver having a first motor assembly and a dual-mode radiator having a second motor assembly. In some embodiments, the dual-mode acoustic radiator speaker system further comprises one or more passive radiators adjoined to the enclosure. Next, within the dual-mode acoustic radiator speaker system a power supply is connected to the electronic signal processing and amplification system.

Abstract: An audio speaker having a suspension system including a surround to support a diaphragm within a frame and to reduce non-pistonic motion of the diaphragm at several resonant frequencies is disclosed. More particularly, embodiments of the surround include a film that undulates in a peripheral direction around the diaphragm and includes several undulations above and below a radial gap between the diaphragm and the frame. Other embodiments are also described and claimed.

Abstract: A surround structure includes an inner rim, an outer rim, and a wave-shaped elastic protrusion, disposed between the inner rim and the outer rim. The wave-shaped elastic protrusion is integrally formed by a plurality of arc-shaped parts. Each arc-shaped part includes a first end, a second end, and a middle part between the first end and the second end. A radial section of each arc-shaped part is arcuate and includes a top edge and two arc-shaped segments combined with two sides of the top edge. A curvature of a radial section of each arc-shaped segment from the first end to the middle part gradually decreases, a curvature of a radial section of each arc-shaped segment from the middle part to the second end gradually increases, and a shape of a radial section of the first end is the same as a shape of a radial section of the second end.

Abstract: A moving-coil loudspeak includes a vibrating diaphragm, a suspension, a voice coil, a magnetic circuit, and a support. The suspension includes a surround and a first spider. One side of the surround is connected to an outer surface of the vibrating diaphragm. The first spider vertically stands below a connection between the surround and the vibrating diaphragm, and one side of the first spider is connected to an inner surface of the vibrating diaphragm. The voice coil is located below the center of the vibrating diaphragm. The magnetic circuit is located below the voice coil, where a coil on the voice coil is disposed at a central position of a magnetic gap. After the voice coil is powered on, a generated magnetic induction force drives the voice coil to vibrate and produce a sound by using the vibrating diaphragm. The support supports the magnetic circuit.

Abstract: A loudspeaker including a chassis, a drive unit and a diaphragm. The drive unit has a stationary part secured to the chassis and a translatable part secured to the diaphragm. An outer edge of the diaphragm is suspended from the chassis by an edge suspension. The edge suspension has a plurality of straight portions, each straight portion having a respective first surface and a respective second surface which meet along an edge to provide a spring which permits the diaphragm to be moved relative to the chassis by the drive unit. The edge suspension has at least one corner portion, wherein the/each corner portion joins two of the straight portions together and includes at least one geometrical interruption formed therein.

Abstract: A sound generating device is provided in the present disclosure. The device includes a frame, a vibrating system, a magnetic system, a terminal fixed to the frame, a edge and a conductive pad. The vibrating system includes a diaphragm and a coil driving the vibration of the diaphragm, and the coil is electrically connected with the terminal. The magnetic circuit system includes a yoke, the main magnet and two sub-magnets at the opposite sides of the main magnet are separately made of the insulating material and respectively set on the opposite sides of the main magnet. The conductive pad is embedded in the edge, and the two edges are interlaced at interlaced intervals with the two sub magnets. The side of the edge is connected to the insulation of the frame, and the other side of the edge is insulated and fixed with the one end of the diaphragm which is far away from the coil, and the coil and the terminal are electrically connected with the conductive pad.

Abstract: A speaker box with side acoustic emission structure is disclosed. The speaker box has a case having an acoustic window, a speaker unit mounted in the case and including a diaphragm, a voice coil and a magnetic circuit, the diaphragm disposed in the side of the acoustic window and not faced to the acoustic window and having a dome and a suspension surrounding the dome, the suspension comprising a first end close to the acoustic window and a second end away from the acoustic window, and the first end is lower than the second end along the vibrating direction.

Abstract: An audio speaker having a suspension system including a surround to support a diaphragm within a frame and to reduce non-pistonic motion of the diaphragm at several resonant frequencies is disclosed. More particularly, embodiments of the surround include a film that undulates in a peripheral direction around the diaphragm and includes several undulations above and below a radial gap between the diaphragm and the frame. Other embodiments are also described and claimed.

Abstract: The present disclosure relates to a speaker device and in particular to a speaker device having a water proof diaphragm, wherein the speaker device is designed to sustain a water pressure of 10 Atmospheres. The present disclosure further relates to an electronic device comprising the speaker device.

Abstract: Disclosed is a speaker module, comprising an active sound source, a passive sound source and a protective frame; the active sound source comprises a vibration system and a magnetic circuit system; the side surface of the protective frame is provided with a sound hole for the active sound source; the passive sound source comprises two passive radiators, and the two passive radiators are arranged in parallel and enclose a cavity; a sound wave at one side of a vibrating diaphragm adjacent to the magnetic circuit system is divided into two parts respectively transmitted to one side of each of the two passive radiators away from the cavity; and a sound wave in the cavity is projected and emitted to the external environment via a sound hole for the passive sound source. The structure improves the bass effect of the speaker module, and improves the acoustic performance of the product.

Abstract: A loudspeaker module emitting sound at a lateral side comprises a loudspeaker unit and a module housing comprising a lower module housing, a middle module housing and an upper module housing. A space formed by the loudspeaker unit, the middle module housing and the lower module housing is a rear sound cavity. A space formed by the loudspeaker unit, the middle module housing and the upper module housing is a front sound cavity. The loudspeaker module further comprises a cover plate which forms a cavity together with the upper module housing. The cavity is communicated with the rear sound cavity through a conducting hole. By utilizing the loudspeaker module of the present invention, superfluous space of the upper module housing can be converted into the rear sound cavity, and therefore the size of the rear sound cavity is increased, and the acoustic performance of the loudspeaker module is improved.

Abstract: A micro speaker is provided. The micro speaker includes a diaphragm, at least one coil coupled with the diaphragm, a magnet configured to interact with a magnetic field induced by the at least one coil, and a yoke plate located on a bottom of the magnet to support the magnet and including a hole therein, top and bottom ends of the hole being opened. An area, adjacent to the hole, of a lower surface of the yoke plate has a height difference relative to another area of the lower surface of the yoke plate.

Abstract: A vibration member is provided in the present disclosure. The vibration member includes a vibration body and a periphery connected with the vibration body, and the periphery includes a first connecting portion, a second connecting portion and a middle connecting portion. The first connecting portion is configured for fixing the vibration body. The second connecting portion is configured for fixing the vibration body. The middle connecting portion is configured for connecting the first connecting portion with the second connecting portion, and the middle connecting portion protrudes in a direction perpendicular to a vibrating direction of the vibration body. A sound generating device using the vibration member also is provided.

Abstract: A speaker diaphragm includes: a vibrator; and a suspension adhered to an outer peripheral part of the vibrator and supporting the vibrator so that the vibrator can vibrate, at least part of the suspension including a top surface member constituting a top surface part of the suspension, a rear surface member constituting a rear surface part of the suspension, and an intermediate member between the top surface member and the rear surface member, these members being stacked, the intermediate member having a rigidity lower than that of at least one of the top surface member and the rear surface member, the top surface member having one or more first holes, the rear surface member having one or more second holes, and at least some of the first holes and second holes being dispose so as to overlap across the intermediate member in a direction in which the members are stacked.

Abstract: An electro-acoustic transducer includes an accordion-type structure that functions as both an acoustic radiation element and an acoustic seal. In one example, the transducer includes parallel, accordion-type structures that attach to a flat, rectangular diaphragm. The diaphragm is connected to a voice coil. The voice coil and an associated frame are positioned between a magnet arrangement. The magnet arrangement includes stacked magnet pairs positioned between pole pieces to focus magnetic flux.

Abstract: A speaker apparatus and an electronic device having the same are provided. The speaker apparatus includes a hollow shape frame, a magnet disposed in an internal part of the hollow shape frame, a voice coil installed in proximity to the magnet, a diaphragm including a diaphragm edge that vibrates by an electric current applied to the voice coil, and a diaphragm edge compression part extended upward along the diaphragm edge. The diaphragm edge compression part contacts an inner surface of a housing of the electronic device.

Abstract: A transducer suspension element is presented. The transducer suspension element includes a suspension member having a body, the body having a main portion, a first portion extending from the main portion and continuing to an outer edge, and a second portion extending from the main portion and continuing to an inner edge. At least one conductor is disposed within or on the suspension member body, the at least one conductor extending at least within a section of the first portion and within a section of the second portion of the suspension member, and wherein a length of the at least one conductor of the suspension member is greater than a minimal distance from the inner edge to the outer edge across the suspension member.

Abstract: A method of manufacturing a damper of a loudspeaker includes the steps of: immersing a fiber cloth with a resinous solution containing resin and formaldehyde catching agent, wherein the resin comprises formaldehyde while the formaldehyde catching agent reduces the amount of formaldehyde in the resin; drying the immersed fiber cloth; forming the dried fiber cloth to a configuration similar to a shape of the damper; and cutting the dried fiber cloth along the shape of the damper, thereby obtaining the damper having low formaldehyde content.

Abstract: An apparatus includes a suspension element coupling a first rigid element to a second rigid element such that the first rigid element is movable in a reciprocating manner relative to the second rigid element. The suspension element includes radial features, some of which may have radial segments of opposite concavity. The segments with opposite concavity provide added stiffness in the primary axis of vibration and may contribute to a more symmetrical force-deflection relationship.

Abstract: A micro-electroacoustic device includes a holder forming a hollow space, a magnetic system received in the hollow space, a vibrating system having a diaphragm and a coil driving the diaphragm for vibrating along a vibrating direction. The diaphragm is assembled with the holder and has an upper edge portion and a lower edge portion connected with the upper edge portion and assembled with the holder. The upper edge portion has a protruding part protruding away from the magnetic system and the lower edge portion has a recessed part recessed towards the magnetic system for supporting the voice coil evenly.

Abstract: An acoustic device includes a resilient surround having a proportionately unequal distribution of half roll and inverted half roll segments. Half roll segments may be sized and located to provide additional clearance for internal components. Regions of transitional concavity may be sized and located to provide increased stiffness in one or more dimensions. Transitions between inversions of concavity may be smooth and free of localized inflexions.

Abstract: A micro-speaker includes a frame, a diaphragm mounted on the frame, a magnetic system received in the frame and defining a magnetic gap, a voice coil driving the diaphragm and suspended in the magnetic gap, and a suspension having a body portion and at least a pair of connecting portion extending from the body portion and mounted on the frame. The body portion of the suspension connects with the voice coil and far away from the diaphragm for cooperating with the diaphragm to fix the coil firmly, thereby ensuring the vibrating of the diaphragm is stable and balanced.

Abstract: 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.

Abstract: A surround that is generally arched in shape and that includes a radial exterior flange that extends downward from exterior side of the arched portion of the surround and that adhesively attaches to the inner wall or edge of the mounting ring of the frame of the loudspeaker.

Abstract: 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.

Abstract: A hearing aid (8) comprises an inlet port (6), a sound tube (12) for conveying sound to the ear piece (13). The invention further provides a component for a hearing aid comprising a slab (26) having an exterior surface, which is super-hydrophobic. The component may be any one of a housing, a casing, a shell, a faceplate, a grid, a hook, a lid, a battery drawer, a button, or a manipulator. The invention also provides a method of manufacturing a component for a hearing aid.

Abstract: A slimline speaker comprises: a magnetic circuit having a magnet and yoke disposed to form a separating space in the horizontal direction; a bobbin on which a voice coil is mounted and of which the lower side is inserted in the separating space between the magnet and yoke; a base frame for mounting the magnetic circuit; a damper having an inside edge coupled to the bobbin and an outside edge coupled to the base frame; and a diaphragm having an inside edge coupled to a point lower down than the point where the damper is coupled on the bobbin, and an outside edge coupled to the base frame.

Abstract: The present invention relates to a miniature suspension member for a miniature transducer, said miniature suspension member comprising first and second portions being connected by a flexible member at respective outer regions facing away from a centre of the suspension member, wherein the first portion, the second portion and the flexible member form, in combination, a polymer-based one-piece injection mouldable structure.

Abstract: A speaker capable of suppressing deterioration of acoustic efficiency while allowing miniaturization of the speaker includes a first unit and a second unit each of which outputs sound. The first unit includes a diaphragm which vibrates back and forth to radiate sound; and plural suspensions which support, at different positions, an outer periphery of the diaphragm. At least one of air passages for channeling sound from the second unit to the outside is provided between the plural suspensions.

Abstract: A casing for covering an outer yoke is provided; an acoustic cavity is formed by this casing; a diaphragm and the outer surface of a side wall of the outer yoke; a second elastic member is provided to join the outer circumferential edge of the casing to the outer circumferential edge of the diaphragm without any gap therebetween; this second elastic member includes pores formed by foaming and made of a material whose elastic modulus is smaller than that of a first elastic member; and pores communicating through from the back surface of the second elastic member, that is the inner side of the casing, to the front surface that is the opposite side of the back surface are eliminated.

Abstract: A loudspeaker 2 comprises a dome 16 whose edge is stiffened by a carbon fiber ring 20. The dome 16 is shaped as a catenary or parabola.

Abstract: 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.

Abstract: A vibrating element manufacturing method by which adhesion is stabilized and yield is improved, a vibrating element, a vibrating actuator, a lens barrel and a camera system. A vibrating element manufacturing method is provided with a first step of arranging an elastic body on a holding member, a second step of forming an electromechanical transducing element by injection molding on the surface of the elastic body, and a third step of sintering the electromechanical transducing element by heating and bonding the elastic body with the electromechanical transducer element.

Abstract: 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.

Abstract: Disclosed herein is a method of manufacturing an inertial sensor. The method of manufacturing an inertial sensor 100 includes (A) applying a polymer 120 to a base substrate 110, (B) patterning the polymer 120 so as to form an opening part 125 in the polymer 120, (C) completing a cap 130 by forming a cavity 115 on the base substrate 110 exposed fro the opening part 125 through an etching process in a thickness direction, and (D) bonding the cap 130 to a device substrate 140 by using a polymer 120, whereby the polymer 120 is applied to the base substrate 110 in a constant thickness D3, such that the cap 130 may be easily bonded to the device substrate 140 by using the polymer 120.

Abstract: A speaker has high sound quality by reducing resonance of curved parts in a speaker damper without decreasing sound pressure and by providing high linearity characteristic. In a damper for a speaker formed by including at least two curved parts, an elastic member is provided at least on one side or on both sides of a peripheral part in a movable part of the damper or provided in the material.

Abstract: A surround for supporting a diaphragm used to create acoustic waves includes a plurality of first rib sections extending away from the diaphragm and a second rib section having a zigzag pattern and being secured to an end of each of the first rib sections. As the diaphragm starts moving away from a home position in an intended direction of travel which is substantially perpendicular to a plane in which the diaphragm lies when the diaphragm is in the home position, the zigzag pattern of the second rib section starts to straighten out.

Abstract: A method of protecting a resonating sensor is described. The protected resonating sensor may include at least one passive ultrasonically excitable resonating sensor unit. Each sensor unit has one or more vibratable members having a resonating frequency that varies as a function of a physical variable in a measurement environment. The sensor is protected by forming one or more protective chambers defined between a compliant member and the vibratable member(s). A substantially non-compressible medium is disposed within the protective chamber(s). The compliant member has a first side that may be exposed to a measurement environment and a second side that may be exposed to the substantially non-compressible medium. The substantially non-compressible medium may be a liquid or gel and is in contact with the vibratable member(s). When the medium is a liquid, the chamber is sealed. When the medium is a gel, the chamber may be sealed or non-sealed.

Abstract: An acoustic mirror of alternately arranged layers of high and low acoustic impedances is manufactured in that a basic material having a first layer of the layer sequence is initially provided, on which a second layer of the layer sequence is created on the first layer such that the second layer of the layer sequence partially covers the first layer. Subsequently, a planarization layer is applied onto the layer sequence, and the planarization layer is removed in an area which in the common layer plane projects laterally beyond the second layer so as to result in a residual planarization layer. Finally, a termination layer is applied onto the layer sequence and the residual planarization layer.

Abstract: A slender-type diaphragm longer in a longitudinal direction and shorter in a transversal direction in relation to the longitudinal direction, has a base member and a slant member. The base member has a pair of extending members provided in parallel in the longitudinal direction as facing each other, and a curved section that protrudes toward a first side of the diaphragm in a vibration direction of the diaphragm from a first plane that includes the extending members, the vibration direction being perpendicular to the longitudinal and transversal directions. The slant member has a slant surface in relation to the first plane and connected to the base member in a manner that the slant member surrounds the base member in a second plane parallel to the first plane, the slant member having a curved surface in a cross section thereof in relation to a cross section of the base member in the transversal direction.

Abstract: 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.

Abstract: A speaker 1 includes: a frame 4; a magnetic circuit 2; and a vibrating unit 3. The magnetic circuit 2 is attached to the frame 4. The vibrating unit 3 is received in the frame 4, and includes a drive cone 14 and a diaphragm 15 vibrated by the magnetic circuit 2. A space surrounded by the drive cone 14, the diaphragm 15 and the frame 4 is sealed. An edge unit 17 is attached to an outer edge of the drive cone 14. The edge unit 17 is in an arc sectional shape, and integrally includes two roll parts 47 arranged coaxially to each other.

Abstract: A drive cone 11 and a diaphragm 14 are integrally driven by a voice coil 6 movably disposed in a magnetic gap 5. Peripheral edge portions of the drive cone 11 and the diaphragm 14 are supported by a frame 12 via different edge portions 13 and 15, respectively. The drive cone 11 is provided with a rising-up portion 11a which rises up toward an acoustic radiation direction from a inner circumferential end, and a rising-down portion 11b which rises down toward a direction reverse to the acoustic radiation direction. An inner circumferential edge of the diaphragm 14 is fixed at an annular top formed between the rising-up portion and the rising-down portion. Moreover, a first rib 11c and a second rib 11d are formed on the drive cone 11 in such a manner as to rise up toward the acoustic radiation direction integrally with the drive cone. The diaphragm 14 is supported also at the tips of the ribs.

Abstract: A voice coil 6 is movably disposed in a magnetic gap 5. A drive cone (first diaphragm) 11 and a diaphragm (second diaphragm) 14 are integrally driven by the voice coil 6. Peripheral edge portion of the drive cone 11 and the diaphragm 14 are supported by a frame 12 through edge portions 13 and 15, respectively. An annular adhesive receiver 8 is disposed in a peripheral surface of a voice coil bobbin 7 around which the voice coil 6 is wound, and an inner peripheral edge 11a of the drive cone 11 is accommodated in the adhesive receiver 8. The drive cone 11, the adhesive receiver 8 and the voice coil bobbin 7 are connected to each other by an adhesive filled into the adhesive receiver 8.

Abstract: The planar speaker contains a frame, a diaphragm, a driver, a surround, and a number of flexible suspension elements. The diaphragm is suspended in a front opening of the frame by the surround. The driver is positioned at the center of the frame and a voice coil of the driver is attached to a back surface of the diaphragm. Two beams are arranged in parallel between two opposing longer wall segments of the frame on either side of the driver. The suspension elements are supported by the two beams, respectively, and attached to a back surface of the diaphragm. The symmetric deformation of the diaphragm along its longer side is thereby constrained by the suspension elements and the deformations at the two end zones of the diaphragm vibrating at a phase opposite to that of the center of the diaphragm would be suppressed.