Abstract: A loudspeaker system including at least one loudspeaker unit, at least one mounting device, wherein the at least one loudspeaker unit is connectable to the at least one mounting device. The at least one mounting device is designed as an overlay, which has at least two countersunk grooves towards the interior, which correspond to protrusions on the exterior of the at least one loudspeaker unit when the overlay receives the at least one loudspeaker unit, wherein the at least two countersunk grooves each have a tangential offset approximately centrally, wherein in the path of the tangential offset there is a latch protrusion which gives the protrusions on the exterior of the at least one loudspeaker unit a tight fit.

Abstract: A display apparatus includes a display panel configured to display an image, a circuit part including a printed circuit board disposed spaced apart from a first portion of the display panel and connected to the display panel, a first vibration device disposed at a rear surface of the display panel, and a second vibration device disposed at a rear surface of the printed circuit board.

Abstract: A flat panel loudspeaker includes a planar resonant panel insertable into an opening in the mounting surface and including a front surface and a rear surface. The front surface faces outward in the mounting surface. The loudspeaker also includes an exciter coupled to the rear surface of the planar resonant panel and a support frame for mounting in the mounting surface. The rear surface of the planar resonant panel is fixed thereto around substantially the whole of the outer boundary of the planar resonant panel. The outer boundary of the planar resonant panel is fixed relative to the mounting surface. The loudspeaker further includes at least one tab configured to extend away from the support frame and be substantially flush with the front surface of the planar resonant panel, which is substantially flush with the mounting surface when the tab is against the mounting surface.

Abstract: An electrodynamic acoustic transducer is disclosed, which comprises a frame and/or a housing, at least one coil and a magnet system, which is fixed to the frame and/or the housing and which is designed to generate a magnetic field through the coil. Furthermore, the electrodynamic acoustic transducer comprises a polygonal membrane, which in an inner portion is fixed to the at least one coil and which in an outer annular portion is fixed to the frame or the housing. A first distance between the outer annular portion and the inner portion at a longitudinal side of the polygonal membrane is smaller or greater than a second distance between the outer annular portion and the inner portion at a corner of the polygonal membrane.

Abstract: The invention relates to hydroacoustics and more specifically to hydroacoustic devices comprising, disposed in a single housing, a converter of liquid-medium oscillations and electrical signals, capable of receiving and/or transmitting hydroacoustic signals, the converter being disposed on a board which is connected to a switch cable for providing power and transmitting electrical signals, and may be used as a receiver and/or transmitter of hydroacoustic signals in water. According to the invention, the housing of the to hydroacoustic device is formed by the outer surfaces of the converter and board, and by a protective material which coats all of said surfaces, said material allowing for a transmission of hydroacoustic oscillations and being capable of transitioning from a highly-elastic or viscous-flow state to a solid state. The achieved technical result consists in simplifying the design of the device.

Abstract: The present disclosure provides a diaphragm. The diaphragm includes a dome portion located at a central position and an edge portion disposed around the dome portion. The edge portion is provided with a plurality of first wrinkles at corners of the edge portion. The first wrinkles extend from an inner side of the edge portion toward an outer side of the edge portion. The edge portion is further provided with at least one second wrinkle passing through all the first wrinkles that are at the same corner as the at least one second wrinkle. The second wrinkle extends along a corner extension direction of the corner at which the second wrinkle is located. The diaphragm of the present disclosure can effectively improve a twist, a swing, and distortion when the diaphragm vibrates, and improve acoustic performance.

Abstract: A passive radiator includes a frame, a vibrating member, a surround and a plurality of strengthening ribs. The vibrating member is disposed in the frame. The surround includes a first arc portion and a second arc portion. The first arc portion is connected to the frame. The second arc portion is connected to the vibrating member. The first arc portion and the second arc portion are connected to form an S shape. The strengthening ribs are connected to the first arc portion and the second arc portion. A thickness of the strengthening rib corresponding to the first arc portion is larger than a thickness of the strengthening rib corresponding to the second arc portion. Furthermore, the passive radiator may include a plurality of reinforcing ribs connected to the first arc portion. Moreover, a thickness of the first arc portion may be larger than a thickness of the second arc portion.

Abstract: The invention discloses a diaphragm and a sound generator having a diaphragm. The diaphragm includes a dome part arranged centrally and a suspension part surrounding the dome part. The suspension part is provided with pleat groups. The pleat group includes many pleats, and each pleats includes a first pattern section, a second pattern section, and a third pattern section connecting the first pattern section and the second pattern section. The height of the third pattern section along the vibration direction is smaller than the protrusion height of the first pattern section and the second pattern section along the vibration direction. The diaphragm of the present invention can be used to reduce low frequency distortion.

Abstract: Vibration instruction data transmitted from another apparatus is received, data related to the vibration instruction data is stored in a memory, and a vibration apparatus is vibrated using the data stored in the memory. On the other hand, vibration state data indicating a vibration state of the vibration apparatus is generated, and the vibration state data is transmitted to the other apparatus.

Abstract: A speaker includes a main-cone and a sub-cone. Linear thin portions configured to reduce a plate thickness of the sub-cone are formed on a region containing at least any one of an outer side and an inner side of the sub-cone. Each of the linear thin portions has both of a component in a radial direction and a component in a circumferential direction of the sub-cone. First and second linear thin portions cross each other at an intersection. With this configuration, stiffness of the whole sub-cone is reduced to enhance a divided vibration of the sub-cone. In particular, a vibrational displacement of an outer peripheral portion of the sub-cone, from which a sound is mainly radiated, is increased.

Abstract: The present disclosure provides a sound device which includes a vibration system, a magnetic circuit system, and a basket that accommodates the vibration system and the magnetic circuit system. The vibration system includes a diaphragm and a voice coil that drives the diaphragm to vibrate. The fixing portion includes a first fixing portion fixed to the upper surface and extending to an edge of the upper surface and a second fixing portion extending from the first fixing portion and along the outer side surface. The second fixing portion in a continuous ring shape is around an end of the outer side surface close to the upper surface in a sealing manner, and a thickness of the second fixing portion is increasing in a direction away from the upper surface.

Abstract: Displacement symmetry of a diaphragm is improved to prevent the occurrence of troubles such as diaphragm rolling or the occurrence of abnormal noise, thereby providing high reproduced sound quality. The diaphragm includes an annular edge portion having a convex radial cross section formed by molding a sheet-like member or a film-like member. The edge portion has a plurality of rotationally symmetrical recessed ribs formed by recessing a convex surface. The plurality of recessed ribs includes at least a first rib disposed along a first prescribed line intersecting, at an angle of 45°, a first radial line passing a center point, and a second rib arranged in a position not intersecting but adjacent to the first rib and disposed along a second prescribed line intersecting the second radial line at a predetermined angle of less than 45°.

Abstract: Disclosed is a piezoelectric transducer of the type including a stack of a contact piece, a piezoelectric pellet and a support of very great stiffness. Specifically, the contact piece forms tips, the respective apex of which constitutes contact points that are spatially isolated from one another. Also disclosed is a process for the manufacture of such a contact piece as well as a resonant ultrasound spectroscopy device including one or more of such piezoelectric transducers.

Abstract: The present disclosure provides a vibration diaphragm. The vibration diaphragm includes a central dome part; and a suspension part surrounding the dome part. The suspension part has a protruding part and a fixation part extending outwards from the protruding part. The vibration diaphragm further includes a number of first reinforcing parts disposed on the suspension part; and a number of second reinforcing parts disposed on the suspension part. Each second reinforcing part surrounds an end of the first reinforcing part.

Abstract: The present disclosure discloses a diaphragm for radiating sound, including: a dome; a suspension surrounding the dome, including a first connecting portion adjacent to the dome and having a first surface and a second surface, a suspending portion extending from and surrounding the first connecting portion, and a second connecting portion extending from and surrounding the suspending portion. The suspending portion includes a convex part along a direction from the second surface to the first surface, an inner edge connecting to the first connecting portion, and an outer edge connecting to the second connecting portion. The diaphragm further includes a stiffening layer located on the first surface of the first connecting portion, extending from the inner edge toward the dome. The present disclosure further includes a speaker incorporating the diaphragm.

Abstract: A loudspeaker is disclosed. The loudspeaker includes a diaphragm with a fixed portion and a movable portion. The fixed portion is attached to the movable portion by a plurality of leaf springs disposed between the fixed portion and the movable portion of the diaphragm. A coil is disposed over the diaphragm in the movable portion of the diaphragm. A magnet assembly is operatively disposed relative to the coil, wherein upon flow of current through the coil, the movable portion of the diaphragm moves relative to the fixed portion.

Abstract: A piezoelectric contact microphone with a mechanical vibration conduction interface provides an improved mobile electronic device microphone. In an embodiment, the mechanical vibration conduction interface is placed on a bone structure and conducts vibration from the bone structure to the piezoelectric contact microphone. Because of the direct contact, this use of piezoelectric contact microphone reduces or eliminates interferences effects due to wind and other airflow over the microphone. The mechanical vibration conduction interface materials and structure are selected to provide effective transmission of vibration from the bone structure to the piezoelectric element within the piezoelectric contact microphone. This piezoelectric contact microphone enables mobile electronic devices to provide improved voice communication, voice transcription, and voice command recognition in the presence of wind noise and other noise.

Abstract: An apparatus including a transducer configured to generate sound, where the transducer comprises a diaphragm. At least one portion of the transducer is electrically conductive and is configured to provide an electrical connectivity to a ground. The at least one portion, at least in part, circumferences the diaphragm.

Abstract: A speaker assembly with a readily replaceable cone that is mounted to a depression 24 within a peripheral channel 22. The cone 30 is kept in place with a ring 40 that coacts with the cone 30 at a peripheral step 35 located a predetermined distance from the cone's distal end 32a. Fastening members 50 keep the ring 40 secured to basket assembly 20 reducing the performance fatigue of cone 30.

Abstract: The present disclosure provides a membrane. The membrane includes a central dome part, and a suspension part surrounding the dome part. The suspension part includes a number of first reinforcing parts, a number of third reinforcing parts spacing from the first reinforcing parts, and an included angle formed between each third reinforcing part and an adjacent first reinforcing part. The third reinforcing part includes a second master extension part, a second slave extension part, and a connecting part connecting the second master extension part and the second slave extension part. The second master extension part and the second slave extension part locate at two ends of the connecting part respectively, and a width of at least one of the second master extension part and the second slave extension part is less than a width of the connecting part.

Abstract: An electronic apparatus is disclosed. In one embodiment, an electronic apparatus comprises a panel, a piezoelectric vibrator, a first bonding member, and a second bonding member. The piezoelectric vibrator is located on an inner surface of the panel. The first bonding member is located between the panel and the piezoelectric vibrator to bond the piezoelectric vibrator to the panel. The second bonding member is located between the panel and the piezoelectric vibrator to bond the piezoelectric vibrator to the panel and has an elastic modulus lower than an elastic modulus of the first bonding member.

Abstract: A rotary pump in a housing which defines an annular chamber with an inlet and outlet port which are located on either side of a partition which extends across the chamber. A flexible annular diaphragm forms one side of the chamber and faces a wall on the housing which forms the second side of the chamber. The diaphragm is sealed at its innermost and outermost edges to the housing and has legs extending away azimuthally around and integral with the diaphragm. A swashplate is connected to the legs of the diaphragm such that in use, movement of the swashplate causes the diaphragm to press precessively against the wall of the housing to force fluid drawn in at the inlet on one side of the partition around the chamber and to expel the fluid at the outlet at the other side of the partition.

Abstract: The present invention discloses a speaker and a rear cover therefor. The rear cover comprises a rear cover body whose one side is provided with a first connection portion; and a connection assembly provided with a first surface and a second surface which are connected with each other. A contact is formed by extending and bending the first surface, and is provided with a conductor. A connection hole is further formed in the first surface. A limiting device and a second connection portion are arranged on the second surface; and the cross section of the limiting device is C-shaped. The connection assembly is connected to the first connection portion of the rear cover body through the second connection portion. The contact is configured to conduct the speaker with the outside. The connection hole is configured to fix the speaker or conduct the speaker with other components.

Abstract: A driver for a loudspeaker including an inner magnet disposed within a housing, an outer magnet disposed within the housing radially outward of the inner magnet, an inner voice coil having a first diameter, an outer voice coil having a second diameter, the second diameter being larger than the first diameter, where poles of the inner and outer magnets are oppositely disposed, where the inner magnet is configured to contribute only to a magnetic circuit of the inner voice coil, and where the outer magnet is configured to contribute to the magnetic circuit of the inner voice coil and to a magnetic circuit of the outer voice coil.

Abstract: The present disclosure provides a vibration diaphragm. The vibration diaphragm includes a vibration part; a suspension extending from and surrounding the vibration part; and a pattern module part formed on the vibration part. The pattern module part includes a ring-shaped first protrusion, and at least two second protrusions bounded by the ring-shaped first protrusion. The second protrusions each has two ends connected to the ring-shaped first protrusion. By virtue of the configuration of the pattern module part, the solution described by the present embodiment increases the surface area of the vibration part, and widens the bandwidth of the vibration diaphragm, and further improves the acoustic performance of the diaphragm.

Abstract: The present disclosure provides a vibration diaphragm. The vibration diaphragm includes a vibration part; a suspension extending from and surrounding the vibration part; and a pattern module part formed on the vibration part. The pattern module part includes a first protrusion, a second protrusion bounded by the first protrusion, and a circle recess formed on the second protrusion. By virtue of the configuration of the pattern module part, the solution described by the present embodiment increases the surface area of the vibration part, and widens the bandwidth of the vibration diaphragm, and further improves the acoustic performance of the diaphragm.

Abstract: This disclosure describes a speaker assembly suitable for use in a portable electronic device utilizing water resistant ports. The speaker assembly can have an open back that subjects a back volume of the speaker to pressure differentials within a device housing of the portable electronic device. The speaker assembly can utilize a speaker surround having a varying thickness. The varying thickness speaker surround allows the speaker to maintain an acceptable frequency response profile while limiting the travel of the diaphragm it is coupled with. The disclosure also describes how electrically conductive pathways can be integrated within a housing of the speaker assembly.

Abstract: A loudspeaker chassis assembly (2) comprises a loudspeaker chassis (4) and one or more mass damping elements (6), which dampen vibration of the chassis (4). The mass damping elements (6) may be directly attached to the chassis (4) and may be tuned to dampen one or more particular vibrational modes of the chassis (4).

Abstract: A micro-speaker is disclosed. The micro-speaker includes a frame with a hollow space, a diaphragm attached to the frame, a voice coil with a lead, a yoke received in the hollow space, a magnet received in the yoke. The yoke includes a base wall in shape of rectangle with two long boundaries and two short boundaries. The base wall includes a first portion locating at the middle of the base wall and two second portions locating at two ends of the first portion and extending to the two short boundaries respectively. The first portion has a thickness greater than the second portion. The second portion of the base wall provides an extra space for at least part of the lead so as to avoid the lead bumping against the base wall.

Abstract: There is provided an electrodynamic sound transducer comprising a chassis and at least one diaphragm which is capable of vibrating and which at its edge has at least two oppositely disposed fixing portions for fixing the diaphragm to the chassis. The edge of the diaphragm is not connected to the chassis between the fixing portions so that the diaphragm can vibrate freely at those locations.

Abstract: A vibration unit for an acoustic arrangement includes an encircling frame, a vibration member, and a weaving suspension extended between the vibration member and the encircling frame for enabling the vibration member to be reciprocatingly moved. The weaving suspension includes a plurality of reinforcing ribs radially and outwardly extended from the vibration member to the encircling frame to form a weaving-like structure, such that the vibration member is prohibited to move along a rib extending direction of each of the reinforcing ribs to ensure the vibration member to be reciprocatingly moved in a linear direction.

Abstract: The present invention relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present invention and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.

Abstract: The present disclosure provides is a speaker, including a frame, a vibrating system accommodated in the frame and a magnet portion driving the vibrating system, the vibrating system includes a diaphragm and a voice coil, the diaphragm includes a first fixing portion, a second fixing portion and a vibrating portion connected therebetween, the vibrating portion includes a vibrating main portion, a first suspension and a second suspension, the first fixing portion is fixed on the magnet portion, the second fixing portion is fixed on the frame, the vibrating main portion vibrates at a side of the magnet portion under driving of the voice coil. Comparing with the related art, vibration of the speaker diaphragm provided by the present disclosure is not limited by the magnet portion, thickness of the speaker can be made thin, which meets requirements of portable mobile electronic products on lighter and thinner components.

Abstract: An edge surrounding a diaphragm has a recessed portion having a recess in one direction of vibration of the diaphragm, and a projecting portion having a projection in the one direction. At least part of the edge continuously has a first changing shape and a second changing shape. The first changing shape has a shape in which a cross-sectional shape of the recessed portion has a length gradually reduced, a cross-sectional shape of the projecting portion has a length gradually increased, and the recessed portion and the projecting portion change from one to the other, and the second changing shape has a shape in which a cross-sectional shape of the recessed portion has a length gradually increased, a cross-sectional shape of the projecting portion has a length gradually reduced, and the projecting portion and the recessed portion change from one to the other.

Abstract: The present disclosure provide a speaker, including a vibrating system and a magnet portion driving the vibrating system, the vibrating system includes a diaphragm and a voice coil driving the diaphragm to vibrate, the diaphragm includes a first fixing portion, a second fixing portion and a vibrating portion connected between the first fixing portion and the second fixing portion, the first fixing portion is fixed on the magnet portion, the second fixing portion is fixed on the frame, the vibrating portion includes a vibrating main portion and a first suspension and a second suspension provided at two ends of the vibrating main portion, the vibrating main portion vibrates at a side of the magnet portion under driving of the voice coil, the magnet portion is provided with an avoiding step at a position corresponding to the first suspension so as to avoid vibration of the first suspension.

Abstract: A speaker device includes a vibration generator, a rod-like member, and a sound generator. The vibration generator vibrates when receiving an electrical signal. The rod-like member has a first longitudinal end fixed to the vibration generator. The sound generator is attached to a part of the rod-like member. The sound generator integrally includes a vibration transmitter which has a fibrous structure and a diaphragm which is a sheet and has a fibrous structure. When a fiber direction is defined as a direction in which fibers of a fibrous structure are oriented, a fiber direction of the vibration transmitter and a fiber direction of the diaphragm intersect with each other.

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 or the loudspeaker.

Abstract: A diaphragm and suspension edge includes inner and suspension edge portions. The inner suspension edge portion includes an inner suspension edge body, and one or more inner side elastic ribs protruding relative to the inner suspension edge body. Each inner side elastic rib forms a bulge on a first side of the inner suspension edge portion, and forms a flute on the opposite side. The outer suspension edge portion includes an outer suspension edge body, and one or more outer side elastic ribs protruding relative to the outer suspension edge body. Each outer side elastic rib forms a protrusion on a first side of the outer suspension edge portion, and forms a groove on the opposite side. The suspension edge restricts the displacement direction of the vibration unit of a speaker in the axial vibration direction thereof to prevent offset of the vibration unit.

Abstract: A suspension element coupled to a diaphragm and to a frame of an acoustic device. The suspension element includes a first surround element and a second surround element that are located adjacent to each other. At least one of the surround elements includes at least one or more openings. The at least one or more openings have features of being located at an edge of the at least one of the surround elements adjacent to the other surround element, or being located in both of the surround elements.

Abstract: A microphone system has a package with a top, a bottom, and four sides that at least in part form an interior chamber. One of the sides forms an inlet aperture for communicating the inlet chamber with the exterior environment. The system also has first and second microphone dies, in a stacked relationship, respectively having a first and second diaphragms. A circuit die, positioned in electrical communication with the first and second microphone dies, is configured to mitigate vibrational noise from the first microphone die using a signal produced by the second microphone die or vice versa. The first and second microphone dies are positioned so that the first and second diaphragms are substantially the same distance from the inlet aperture in the side.

Abstract: The present invention provides a loudspeaker driver not suffering from high levels of distortion caused by the non-linear stiffness commonly found with drivers that utilize progressive suspension elements. The novel suspension element for suspending the diaphragm of a loudspeaker driver to the chassis thereof has a geometry with two opposing first sections and two opposing second sections, which connect the two first sections. The second sections have a curvature radius smaller than that of the first sections. The mean height of the radial cross-sectional profile of the second section is higher than the height of the cross-sectional profile of the first sections. The first sections have an axial stiffness greater than the second sections.

Abstract: A miniature sound generator includes a vibration system including a diaphragm, a voice coil, a damping part supporting the coil elastically, and a fixing system. The voice coil is located below the diaphragm for driving the diaphragm to vibrate and includes a pair of long shaft sides and a pair of short shaft sides. The damping part includes a circuit board arranged on one short shaft side for electrically connecting with the voice coil, and an insulated symmetrical plate arranged on the other short shaft side. The damping part is only arranged at the short shaft sides symmetrically, with one end thereof being fixed with the fixing system, and the other end thereof being fixed with the voice coil. The insulated symmetrical plate has a damping coefficient same to that of the circuit board.

Abstract: The present invention includes a vibrating panel device for an electromagnetic vibrator, which includes at least one vibrating panel device. The vibrating panel module includes a base, a vibrating panel and an upper suspension, wherein an inner edge and an outer edge of the upper suspension are respectively connected with the base and the vibrating panel, and form an integrated whole body. Further, two vibrating panel modules are fixedly connected in opposite directions to form the vibrating panel device. By unique structures of the vibrating panel device, when the voice coil drives the vibrating panel to actuate, shaking of the vibrating panels is offset due to interactions between a pair of the suspensions and a pair of the vibrating panels, in such a manner that the voice coil drives the vibrating panel to process vertical up-and-down stroke, so as to replace a conventional damper.

Abstract: A double-voice coil moving-coil loudspeaker comprises a bracket. A U-shaped cup with a circular groove is fixed in the bracket. A vibrating diaphragm is fixed on the bracket at the position of the U-shaped cup. A large voice coil and a small voice coil distributed in a concentric circle are arranged on the vibrating diaphragm. A circular large magnet and a circular small magnet distributed in a concentric circle are arranged in the U-shaped cup. A circular big washer and a circular small washer are respectively arranged on an upper surface of the large magnet and the small magnet. The big voice coil and the small voice coil are respectively arranged in a gap formed by the U-shaped cup and the big washer and a small gap formed between the U-shaped cup and the small washer. The U-shaped cup is provided with air vents. The air vents of the U-shaped cup are communicated with a gap between the big washer and the smaller washer and a gap between the big magnet and the small magnet.

Abstract: A loudspeaker includes a frame, a diaphragm, a voice coil body, a terminal, and a relay wire. The diaphragm includes a thin part and a thick part formed around the thin part. The voice coil body includes a bobbin and a voice coil, and is placed in the center of the diaphragm. The terminal is fixed to the frame. The relay wire is connected to the terminal and the voice coil. At least part of the relay wire is located in the thick part.

Abstract: 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.

Abstract: There are provided a speaker frame having a metallic suspension integrated therewith, the suspension being connected to a voice coil unit to transmit electrical signals thereto and supporting the voice coil unit to vibrate in place according to the electrical signals, and a speaker having the speaker frame. The speaker frame forms a casing of the speaker and including elements of the speaker creating sound according to the electrical signals. The metallic suspension may be integrated with the speaker frame by injection molding of a synthetic resin, and a process of installing the suspension in the speaker frame may be omitted in the assembly process of the speaker. Therefore, manufacturing time and costs of the speaker may be reduced.

Abstract: A micro-speaker includes a speaker monomer, a housing and a waterproof membrane. The housing accommodates the speaker monomer and has an opening to output a sound generated by the speaker monomer. The waterproof membrane seals the opening and transmits the sound generated by the speaker monomer. The waterproof membrane has a center area and a peripheral area surrounding the center area, and a stiffness of the center area is greater than a stiffness of the peripheral area.

Abstract: Embodiments for a speaker spider of a loudspeaker are provided. The speaker spider may include a central opening and a plurality of concentric corrugations. Dimensions of the speaker spider may substantially homogenize stress on the speaker spiders during operation of the loud speaker. Dimensions of such a speaker spider that substantially homogenizes stress on the speaker spider during operation may involve one or more of (i) corrugations having azimuthally varying depths, (ii) corrugations having azimuthally varying crest and/or trough curvature radii, and (iii) corrugations having angularly varying distances from the central opening of the speaker spider, among other possibilities.

Abstract: Measures are provided for increasing the resistance to compression of a component having a micromechanical microphone pattern. In particular, the robustness of the microphone pattern to highly dynamic pressure fluctuations is to be increased, without the microphone sensitivity, i.e. the microphone performance, being impaired. The microphone pattern of such a component is implemented in a layer construction on a semiconductor substrate and includes at least one acoustically active diaphragm, which spans a sound hole on the substrate backside, and a stationary acoustically penetrable counterelement having through hole openings, which is situated above/below the diaphragm in the layer construction. At least one outflow channel is developed which makes possible a rapid pressure equalization between the two sides of the diaphragm. In addition, at least one controllable closing element is provided, with which the at least one outflow channel is optionally able to be opened or closed.