21results about "Transducer combinations" patented technology

An air-pulse generating device, a wearable sound device, bladeless fan, and an airflow producing method are disclosed. The air-pulse generating device includes a film structure, configured to be actuated to generate a plurality of air pulses at an ultrasonic pulse rate. The plurality of air pulses produces a net airflow toward one single direction.

An electronic device, including a substrate, a package component, a first sensor chip, and a second sensor chip, is provided. The substrate has an inner space and a first through hole communicated with the inner space. The package component is disposed on the substrate and forms a front chamber and a back chamber together with the substrate. The package component has an opening. The front chamber is communicated with an outside air by the opening. The inner space constitutes at least part of the back chamber, and the back chamber is communicated with the front chamber by the first through hole. The first sensor chip is disposed on the substrate and covers the first through hole to separate an airflow in the front chamber and an airflow in the back chamber. The second sensor chip is disposed on the substrate and located in the back chamber.

The invention relates to a hearing device (1) comprising a loudspeaker (6) with a loudspeaker diaphragm (24) for generating acoustic signals, a drive acting on the loudspeaker diaphragm (24), and a loudspeaker housing in which the drive and the loudspeaker diaphragm (24) are received; a housing (2) enclosing an interior space; and a loudspeaker box (12) arranged in the interior space, in which the loudspeaker (6) is fluid-tightly sealed from the interior space, and which has a sound outlet opening (22) coupled to a sound conductor (18, 20) leading from the housing (2). The loudspeaker (6) is arranged in the loudspeaker box (12) without a sound channel element arranged within the loudspeaker box (12) that couples the loudspeaker (6) to the sound outlet opening (22).

This application discloses an audio processing method and apparatus and an electronic device. The electronic device includes a device body and a decorative ring assembly. The device body is provided with a first opening, and the decorative ring assembly is assembled onto the device body through the first opening. The decorative ring assembly includes a cover plate and an expandable connection component. The cover plate corresponds to a sound module of the device body, the expandable connection component has a cavity, a first end of the expandable connection component is connected to the cover plate, a second end of the expandable connection component is connected to the sound module, and the cavity communicates with an acoustic chamber of the sound module. The cover plate is able to rotate relative to the device body, and a volume of the cavity corresponds to a rotation angle of the cover plate.

The present invention relates to an earcup for audio communication, e.g. for use in headsets and other wearable audio communication devices and systems. The invention further relates to a headset comprising one or two such earcups. The earcup comprises a housing wall that is configured to separate an inner cavity inside the earcup from space surrounding the earcup, and an electroacoustic transducer with an actively driven diaphragm arranged in or across an opening in the housing wall and / or as a portion of the housing wall. The electroacoustic transducer is configured to cause the diaphragm to emit sound into the surrounding space from a front side of the diaphragm. A gas in the inner cavity has a first pressure that exerts a force on the back side of the diaphragm. The earcup further comprises a displaceable wall that fluidly divides the inner cavity into a first sub-cavity containing the gas and a second sub-cavity containing one or more fluids, and one or more openings in the housing wall that fluidly connect the second sub-cavity with the surrounding space. The displaceable wall is configured to be displaced by oppositely directed forces exerted respectively by the first pressure and by a second pressure of the one or more fluids and thus change the volume of the first sub-cavity in reaction to a change in the difference between the first pressure and the second pressure, thereby reducing a pressure difference between the front side and the back side of the diaphragm. The invention may e.g. be used to enable divers and / or skydivers to wear their headsets respectively under water and at high altitudes above ground without risking a collapse of the earcup.

In an embodiment, provided is a loudspeaker including a port tube having at least one flared exit designed by a process for optimizing port tube design parameters. The optimization process may include: receiving, by a processor, port tube design parameters for the loudspeaker; predicting, by the processor, pressure and pressure gradients by performing a numerical simulation process based on the port tube design parameters; determining, by the processor, a measure of shear within the port tube and at exits of the port tube based on the predicted pressure and pressure gradients; and until the measure of shear is minimized, updating, by the processor, the port tube design parameters, and sequentially repeating performing the numerical simulation process and the determining of the measure of shear.

[Object] To provide a bone conduction speaker unit that when incorporated in a headrest, is able to suppress an unwanted event such as sound ringing or sound leakage as much as possible, which inevitably occurs in a bone conduction speaker, and can be suitably incorporated in a headrest and a headrest incorporating the bone conduction speaker unit. [Solving Means] A bone conduction speaker unit includes a base frame 2, a low-resilience annular body 3 fixed to the top surface of the base frame 2, a damping material 4 fitted into and supported by the base frame 2, a bone conduction speaker body 5 disposed on the damping material 4 so as to be surrounded by the low-resilience annular body 3, and a contact 6 disposed on the low-resilience annular body 3 so as to cover the bone conduction speaker body 5. The contact 6 is configured to contact the vibration surface of the bone conduction speaker body 5 when the contact 5 receives a load and to leave the vibration surface of the bone conduction speaker body 5 when the load is eliminated.

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

PNEUMATIC PULSATING LOUDSPEAKER FOR MOTOR VEHICLES The present invention relates to a loudspeaker (2) for a motor vehicle (1), notable in that said loudspeaker comprises: - a pneumatic circuit (4) provided with a pressurized gas flow (F) circulating from upstream to downstream in said pneumatic circuit; and - a flexible diaphragm (10) fluidly connected to the pressurized gas flow, configured to deform according to pressure variations of the pressurized gas within said flexible diaphragm, such that deformations of said flexible diaphragm generate sound. (Figure to be published with the abbreviation: Figure 1)

The earcup comprises a housing wall separating an inner cavity inside the earcup from space surrounding the earcup, and an electroacoustic transducer with a diaphragm. The diaphragm is configured to emit sound into the surrounding space from a front side of the diaphragm. A gas in the inner cavity has a first pressure that exerts a force on the back side of the diaphragm. The earcup further comprises a displaceable wall that fluidly divides the inner cavity into a first sub-cavity containing the gas and a second sub-cavity containing one or more fluids, and one or more openings in the housing wall that fluidly connect the second sub-cavity with the surrounding space. The displaceable wall is configured to be displaced by oppositely directed forces exerted respectively by the first pressure and by a second pressure of the one or more fluids.

Motor vehicle, with at least one vehicle seat having a seat surface and a backrest, wherein at least one side guide cushion is formed in the area of ​​side surfaces of the seat surface and / or the backrest, wherein the volume of the side guide cushion can be changed by a fluid by increasing and / or decreasing the size of the side guide cushion, wherein the fluid is supplied via at least one compressor, characterized in that a device for playing back audio signals is provided which is connected to means that convert the digital audio signals into electrical signals, that the at least one compressor is connected to these means and causes a pressure change in the respective side guide cushion connected to the existing compressor according to the converted electrical signals.

The microelectromechanical component (1) has a housing (2) with a carrier (3), a cover (5) and a displacement structure (8) arranged in the housing (2). The displacer structure (8) has a bottom wall (9), a top wall (10), a side wall (11) and a plurality of displacer walls (12) which extend between the bottom wall (9) and the top wall (10), are parallel to one another and run perpendicular to the side wall (11), are movable, and delimit a plurality of volume chambers (13) of the displacer structure (8). According to the invention, the displacement device structure (8) has at least one movable coupling element (14) which is mechanically and fixedly connected to the movable displacement device wall (12) and which is formed at least in sections by the bottom wall (9) and / or by the top wall (10) and / or by the side walls (11) and which can be moved in such a way that the displacement device structure (8) can be moved at least in sections by the bottom wall (9) and / or by the top wall (10) and / or by the side walls (11). The movable displacement device wall (12) can be moved in a direction parallel to the carrier (3) and perpendicular to the movable displacement device wall (12).

A sound system having a sound-emitting body (1) comprising a fillable, viscoelastic hollow membrane (2). To achieve an improvement in the sound quality while at the same time keeping production costs low, it is proposed that the membrane tension of the viscoelastic hollow membrane (2) can be adjusted in dependence on the sound emission behaviour due to the filling pressure such that the overpressure in the hollow membrane (2) is preferably between 0.01 and 0.5 bar; and the sound system having a structure-borne sound transducer (4) which is vibrationally connected to the sound-emitting body (1).

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

This application discloses an audio processing method and apparatus and an electronic device. The electronic device includes a device body and a decorative ring assembly. The device body is provided with a first opening, and the decorative ring assembly is assembled onto the device body through the first opening. The decorative ring assembly includes a cover plate and an expandable connection component. The cover plate corresponds to a sound module of the device body, the expandable connection component has a cavity, a first end of the expandable connection component is connected to the cover plate, a second end of the expandable connection component is connected to the sound module, and the cavity communicates with an acoustic chamber of the sound module. The cover plate is able to rotate relative to the device body, and a volume of the cavity corresponds to a rotation angle of the cover plate.

Acoustic sensor housing (10) for detecting airborne sound in the exterior of vehicles moving in an air fluid, the acoustic sensor housing (10) comprising a housing cover (1) comprising an opening (2) for air inlet that is symmetrical to an axial axis (A) of the acoustic sensor housing (10), a spherical body (3) arranged axially symmetrically in the opening (2), an inflow component (4) arranged behind the spherical body (3) in the air flow direction and comprising a sound channel (5) in the form of a continuous hollow space parallel to the axial axis (A), wherein the spherical body (3) is fixed to the inflow component (4) on an outflow side (6) by means of an acoustically permeable membrane (7) that protects the sound channel (5) against the action of foreign bodies, and wherein a flow bypass (8) that directs foreign bodies that have entered the acoustic sensor housing (10) through the air flow away from the membrane (7) and out of the acoustic sensor housing (10) leads out,by a free space between the surface of the spherical body (3), the membrane (7), the inflow component (4) and an inner wall (9) of the housing cover (1).

A device, including an implantable microphone, including a transducer, and a chamber in which a gas is located such that vibrations originating external to the microphone based on sound are effectively transmitted therethrough, wherein the transducer is in effective vibration communication with the gas, wherein the transducer is configured to convert the vibrations traveling via the gas to an electrical signal, the chamber and the transducer correspond to a microphone system, wherein the chamber corresponds to a front volume of the microphone system, and the transducer includes a back volume corresponding to the back volume of the microphone system, and the implantable microphone is configured to enable pressure adjustment of the front and / or back volume in real time.

The present invention provides a micro-electromechanical system, which includes: a housing defining a cavity and an opening communicating with the cavity; a diaphragm mounted at the opening; at least one cantilever located in the cavity, the cantilever including a first end, a second end and a fulcrum located between the first end and the second end; a plunger located between the diaphragm and the cantilever and used to transmit the displacement of the diaphragm to the first end of the cantilever; and a sensor element connected to the second end of the cantilever; wherein the distance between the first end and the fulcrum is less than the distance between the second end and the fulcrum. The micro-electromechanical system of the present invention has the advantages of high signal-to-noise ratio, small packaging volume, high sensitivity, etc. The stiffness of the diaphragm of the present invention is an order of magnitude higher than that of the diaphragm of the related art, avoiding mechanical collapse and large DC deformation under 1 standard atmosphere (atm).

A bone conduction speaker unit is provided that when incorporated in a headrest, can suppress an unwanted event such as sound ringing or sound leakage, which occurs in a bone conduction speaker, and can be incorporated in a headrest. A bone conduction speaker unit includes a base frame 2, a low-resilience annular body 3 fixed to the top surface of the base frame 2, a damping material 4 fitted into and supported by the base frame 2, a bone conduction speaker body 5 on the damping material 4 can be surrounded by the low-resilience annular body 3, and a contact 6 disposed on the low-resilience annular body 3 to cover the bone conduction speaker body 5. The contact 6 contact the vibration surface of the bone conduction speaker body 5 when the contact 5 receives a load and to leave the bone conduction speaker body 5 when eliminated.