The present invention provides a receiver-in-canal assembly comprising a receiver housing defining a channel extending in a longitudinal direction, where a first sound opening is arranged at the first end, and where a receiver is arranged in the channel. A dome is attached to the receiver housing at a first end. The dome comprises a circumferential member arranged circumferentially around the receiver housing and has a second sound opening at a front end. An extension extends from an inner surface of the circumferential member towards the channel. The extension forms a space in which a first protection element and a second protection element are arranged longitudinal offset from each other. The extension extends into the channel, where an inner surface part of the receiver housing forms an inner contact surface for contact with an outer contact surface of the extension. The receiver housing comprises a first engagement structure and the dome comprises a second engagement structure, where the first and second engagement structures are configured for mutual engagement to releasably lock the dome to the receiver housing.
The present invention provides a receiver-in-canal assembly comprising a receiver housing defining a channel extending in a longitudinal direction, where a first sound opening is arranged at the first end, and where a receiver is arranged in the channel. A dome is attached to the receiver housing at a first end. The dome comprises a circumferential member arranged circumferentially around the receiver housing and has a second sound opening at a front end. An extension extends from an inner surface of the circumferential member towards the channel. The receiver housing comprises a first engagement structure and the dome comprises a second engagement structure, where the first and second engagement structures are configured for mutual engagement to releasably lock the dome to the receiver housing. The assembly further comprises a first release pattern and a second release pattern being configured for release of the dome from the receiver housing upon rotational movement of the dome and the receiver housing relative to each other.
A system, method, device and computer program are provided for determining a physiological parameter of a body comprising blood perfused tissue. The system comprises a sensor, or a plurality of sensors. The sensor(s) receive first and second radiation from the blood perfused tissue. The sensor(s) generate a first signal relating to an amount of blood (x(t)), and a second signal relating to a speed of blood (v(t)). An evaluation unit of the system defines first and second signal fractions in the first and second signals, respectively. The evaluation unit performs an intrinsic check whether to accept or reject the signal fractions and optionally uses a cross-check algorithm that has as its input both signal fractions and the result of the intrinsic check. The physiological parameter is determined using, if the cross-check algorithm was performed, the first and/or second signal fraction if accepted by the cross-check algorithm.
A61B 5/0295 - Measuring blood flow using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
The present invention relates to a vibration sensor comprising a carrier substrate comprising a first surface and a second surface, a suspension member and a moveable mass secured thereto, wherein the moveable mass and/or at least part of the suspension member is/are adapted to vibrate when the vibration sensor is exposed to external vibrations, a read-out arrangement for detecting vibrations of the moveable mass and/or at least part of the suspension member, and a signal processor for at least processing an electric signal from the read-out arrangement, wherein the read-out arrangement comprises a capacitor formed by a first capacitor electrode and a second capacitor electrode separated by an air gap, and wherein the first capacitor electrode and/or the second capacitor electrode comprises one or more air venting channels in order to reduce squeeze film damping effects between the first and second capacitor electrodes. The present invention further relates to a hearing device comprising such a vibration sensor and use of the vibration sensor for voice recognition in a hearing device.
G01H 11/06 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
The present invention relates to a capacitive MEMS speaker comprising a first sound generating element adapted to deflect in response to electrical energy applied thereto, a second sound generating element adapted to deflect in response to electrical energy applied thereto, and an inductor adapted to store and release electrical energy when electrical energy is transferred between the first and second sound generating elements at least partly via the inductor. The present invention further relates to an associated method for transferring electrical energy between the first and second sound generating elements at least partly via the inductor. Finally, the present invention relates to hearing device comprising a capacitive MEMS speaker.
A system and a method for determining a physiological parameter of a body comprising blood perfused tissue, the system comprising a first sensor configured to receive first radiation from the blood perfused tissue and, based on the received first radiation, provide first information relating to an amount of blood in the tissue, such as from an absorption of the first radiation in the tissue, a second sensor configured to receive second radiation from the blood perfused tissue and, based on the received second radiation, provide second information relating to a speed of blood in the tissue, such as from Doppler shift of the second radiation, a controller configured to determine the physiological parameter from the first information and the second information.
The present invention relates to an audio assembly for a hearing device, said audio assembly comprising a nozzle comprising a sound channel and a sound port acoustically connected to the sound channel, wherein the sound channel has a longitudinal axis, a receiver at least partly positioned in the sound channel of the nozzle, wherein the receiver has a longitudinal axis, and wherein a housing of the receiver comprises a sound output port, and a first microphone at least partly arranged in the nozzle, wherein the first microphone comprises a sound inlet port. The longitudinal axes of the sound channel and the receiver are essentially parallel when the receiver is at least partly positioned in the sound channel. Moreover, an acoustic passage defining an acoustic mass exists between a part of a sound channel wall and an outer housing part of the receiver, and the acoustic passage extends in the direction of the longitudinal axis of the sound channel, and the acoustic passage is acoustically connected to the sound port of the nozzle and to the sound output port of the receiver whereby the acoustic passage is arranged between the sound port of the nozzle and the sound output port of the receiver. The receiver may comprise a hinged diaphragm and a voice coil secured thereto, and the hinged diaphragm is adapted to deflect in response to a drive signal applied to the voice coil. The present invention also relates to a hearing device comprising an audio assembly.
The present invention relates to a vibration sensor comprising a carrier substrate comprising a first surface and a second surface, a suspension member and a moveable mass secured thereto, wherein the moveable mass and/or at least part of the suspension member is/are adapted to vibrate when the vibration sensor is exposed to external vibrations, a read-out arrangement for detecting vibrations of the moveable mass and/or at least part of the suspension member, and a signal processor for at least processing an electric signal from the read-out arrangement, wherein the moveable mass forms a first projected area on a plane defined by the carrier substrate, and wherein the signal processor forms a second projected area on the plane defined by the carrier substrate, and wherein the first and second projected areas are, at least partly, spatially overlapping in the plane defined by the carrier substrate. The present invention further relates to a hearing device comprising such a vibration sensor, and use of the vibration sensor for voice recognition in a hearing device.
G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
The present invention relates to a vibration sensor comprising a carrier substrate comprising a first surface and a second surface, a suspension member and a moveable mass secured thereto, wherein the moveable mass and/or at least part of the suspension member is/are adapted to vibrate when the vibration sensor is exposed to external vibrations, a read-out arrangement for detecting vibrations of the moveable mass and/or at least part of the suspension member, and a signal processor for at least processing an electric signal from the read-out arrangement, wherein the read-out arrangement comprises one or more piezo electric layers and one or more electrodes arranged on the respective piezo electric layers. The suspension member forms a cantilever beam comprising a static end, a moveable end and a virtual hinge line arranged in between, wherein at least part of the moveable mass is secured to the cantilever beam between the virtual hinge line and the moveable end, and wherein the one or more piezo electric layers are secured to the cantilever beam in a manner so that the one or more piezo electric layers intersect the virtual hinge line. The present invention further relates to a hearing device comprising a vibration sensor and use of the vibration sensor for voice recognition in a hearing device.
G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
H04R 1/04 - Structural association of microphone with electric circuitry therefor
H10N 30/30 - Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
10.
TRANSDUCER AND PORTABLE AUDIO DEVICE COMPRISING SUCH A TRANSDUCER
Van Der Beek, Gerardus Johannes Franciscus Theodorus
Groffen, Camiel Eugene
Hijman, Jan
Abstract
The invention relates to a transducer comprising a housing, the housing at least partly accommodating: at least one moveable element; at least one drive means for moving the at least one moveable element, the at least one drive means comprising a coil and a magnet assembly, and at least one seal. The at least one moveable element comprises two legs that are connected to each other, where the coil extends around a first leg of the two legs, such that the first leg is driven in a reciprocating movement by the drive means and the second leg that is connected to the first leg is thereby also driven in the reciprocating movement, and wherein the at least one seal is attached to the second leg. The invention also relates to a portable audio device comprising such a transducer.
The present disclosure provides a dome for a personal audio device. The dome comprises a central portion defining a channel extending in a longitudinal direction, where a first sound opening is arranged at a first end, and a circumferential member arranged circumferential around the central portion. The circumferential member is attached to the central portion at the first end, and comprises second sound opening at a front end. The central portion is formed by a first material and the circumferential member is formed by a second material, the second material being more flexible than the first material. A first length of the circumferential member in the longitudinal direction is in the range of 25% to less than 100% of a second length of the central portion in the longitudinal direction.
An amplifier for a dual backplate MEMS microphone comprising at least a first source follower which has a gate for connection to a first backplate of the dual backplate MEMS microphone, and a load circuit connected to a source of the first source follower which provides an output signal of the filter, which filter comprises a second source follower connected to a second backplate of the dual backplate MEMS microphone, and a distortion detection circuit which is connected to the source of the first source follower and to the source of the second source follower for measuring distortion of the output signal at the source of the first source follower, wherein said distortion detection circuit is connected to a correctional circuit that drives at least a first bias current source for the first source follower.
The invention relates to a sound channel and a portable audio device comprising such a sound channel, wherein said sound channel comprises a vent path, a closing element and a guiding surface for guiding a movement of the closing element, wherein said closing element is slidably moveable with respect to said guiding surface by a driving means between a first position in which the closing element substantially closes the vent path and a second position in which the closing element leaves the vent path open, and wherein the closing element comprises a stop surface that engages a stop element of the sound channel in the first position of the closing element and a sliding surface that extends substantially parallel to said guiding surface, wherein a liquid is present between the sliding surface of said closing element and the guiding surface. The invention also relates to a method of operating such a sound channel.
The present invention relates to a sound and vibration sensor comprising pressure generating arrangement adapted to generate pressure variations in a first and a second rear volume in response to vibrations of the sound and vibration sensor, the pressure generating arrangement comprising a moveable mass secured to a suspension member, and a first and a second pressure detecting arrangement, wherein the first and second pressure detecting arrangements are acoustically connected to a front volume of the sound and vibration sensor, and wherein each front volume is acoustically connected to the exterior of the sound and vibration sensor via a sound inlet, wherein the first pressure detecting arrangement is acoustically connected to the first rear volume, and that the second pressure detecting arrangement is acoustically connected to the second rear volume. The present invention further relates to a personal audio device comprising a sound and vibration sensor.
G01H 11/06 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
H04R 1/04 - Structural association of microphone with electric circuitry therefor
The present invention relates to an audio assembly for a hearing device, said audio assembly comprising 1) a nozzle comprising a sound channel and a sound outlet acoustically connected to the sound channel, wherein the sound channel, in a plan essentially perpendicular to a longitudinal axis of the sound channel, has a cross-sectional area, AN, limited by a sound channel wall, and 2) a miniature receiver at least partly positioned in the sound channel, wherein the miniature receiver, in a plan essentially perpendicular to a longitudinal axis of the miniature receiver, has a cross-sectional area, AR, defined by a housing of the miniature receiver, and wherein the housing of the miniature receiver comprising a sound output port and a venting opening, wherein the longitudinal axes of the sound channel and the miniature receiver are essentially parallel when the miniature receiver is at least partly positioned in the sound channel, and wherein the cross-sectional area, AN, of the sound channel exceeds the cross-sectional area, AR, of the miniature receiver, and wherein the excess cross-sectional area of the sound channel forms an acoustical passage defining an acoustical mass between a part of the sound channel wall and an outer housing part of the miniature receiver, and wherein the acoustical passage extends in the direction of the longitudinal axis of the sound channel, and wherein the acoustical passage is acoustically connected to the sound outlet of the nozzle and to the sound output port of the miniature receiver whereby the acoustical passage is arranged between the sound outlet of the nozzle and the sound output port of the miniature receiver. The present invention further relates to hearing device comprising an audio assembly.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The present invention relates to a system for deriving information relating to a cavity in blood perfused tissue comprising a cavity having an inner surface, the system comprising a sensor comprising a housing and, in or at the housing, a first, a second and a third distance and/or movement sensor, the housing having an outer surface and being configured to be positioned in the cavity, the first distance and/or movement sensor being configured to sense a first distance or velocity from a first position and in a first direction and output a corresponding first output signal, the second distance and/or movement sensor being configured to sense a first distance or velocity from a second position and in a second direction and output a corresponding second output signal, the third distance and/or movement being configured to sense sensing a first distance or velocity from a third position and in a third direction and output a corresponding third output signal, where, when projected on to a predetermined plane, no angle being 180° or more exists between adjacent directions, a controller configured to determine, from the first, second and third output signals, information relating to distances and/or relative movements between the sensor and the cavity along the first, second and third directions, respectively.
A system for determining a biometric parameter of a body, in particular for determining a physiological parameter of a body comprising blood perfused tissue, the system comprising: a housing; a radiation source provided at or in the housing, configured to emit radiation to a surface of the body; a radiation detector configured to detect radiation and to create output signal(s) related to the detected radiation, and configured to simultaneously detect radiation emitted to the surface of the body and radiation received from the body at a fixed distance from the radiation source or the body; and a controller configured to receive output signal(s) from the radiation detector and to determine the biometric parameter from the output signal(s), and configured to determine a relative movement between the body and the radiation source from at least a portion of the output signal(s).
The present invention relates to a miniature receiver for a hearing device, said miniature receiver comprising an oblong housing, a sound output port arranged in the oblong housing, a hinged diaphragm arranged within the oblong housing and separating a front volume and a rear volume within the oblong housing, wherein the hinged diaphragm comprises a hinged portion and a moveable portion, and wherein at least the moveable portion of the hinged diaphragm is adapted to vibrate in response to a drive signal applied to a voice coil secured to the moveable portion of the diaphragm, and a magnetic motor arranged within the oblong housing, wherein the magnetic motor is adapted to generate a static magnetic field in an air gap within which at least part of voice coil is positioned. The present invention also relates to an audio assembly for a hearing device comprising a nozzle having a sound channel within which sound channel a miniature receiver is at least partly positioned. The present invention further relates to a hearing device comprising a miniature receiver, or an audio assembly.
The invention relates to a moveable element for a transducer, said moveable element being arranged to be moved indirectly or directly by a driving means of said transducer, said moveable element being arranged for outputting acoustic energy or for moving an outputting means for outputting said acoustic energy that is operatively coupled to said moveable element, wherein said moveable element comprises at least one sensor for sensing at least one parameter of the moveable element and/or of a volume defined by a housing of the transducer. The invention further relates to a transducer comprising such a moveable element and an in-ear device comprising such a transducer. The invention further relates to a method for determining the occurrence of a condition in such a transducer.
Acoustic valve for a hearing device, including a valve body defining a passageway, and a seat member and shutter member inside the valve body. The shutter member defines a shutter surface that forms a contact portion and a non-contact portion. The shutter member is moveable relative to the seat member to transition the valve between an opened state, wherein the shutter member is removed from the seat member and the passageway is open to allow sound to pass, and a closed state wherein the contact portion abuts the seat member and the non-contact portion blocks the passageway to restrict passage of sound. The contact portion forms a protruding structure that extends from the non-contact portion and towards the seat member, and has a small width along at least one transverse direction to minimise a contact area between the contact portion and the seat member when the valve is closed.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type Details
A hearing device comprising a body provided with a dome, wherein a vent path is provided through the body, and wherein the body is further provided with a valve and a valve driver which connects to the valve for opening and closing of the vent path, wherein when the vent path is closed the valve engages the body, and wherein said valve driver comprises a permanent or switchable magnet and a first electrical coil for generating magnetic field lines that cooperate with the permanent or switchable magnet for moving the valve, wherein the valve driver is arranged to energize the first electrical coil with a current magnitude and/or direction that depends on a position of the valve between an open position wherein the vent path is open and a closed position wherein the vent path is closed.
A hearing device comprising a leading sealing element and a trailing receiver and valve, wherein in a longitudinal direction of the hearing device the valve is more distant from the sealing element than the receiver, and wherein the receiver and the valve each are unitary items that are separate from each other, and that the receiver and the valve are connected to each other by a flexible interlink.
The present invention relates to an acoustical assembly adapted to be inserted into an ear canal, said acoustical assembly comprising a receiver unit adapted to generate sound pressure waves, a microphone unit adapted to detect sound pressure waves inside the ear canal when the acoustical assembly is inserted in the ear canal, and a nozzle comprising a receiver unit mount adapted to house at least part of the receiver unit, wherein the nozzle comprises at least one sound channel adapted to guide generated sound pressure waves from a receiver unit outlet to at least one sound outlet opening of the nozzle, and wherein the nozzle further comprises a microphone unit mount adapted to house at least part of the microphone unit. The present invention further relates to a hearing device comprising an acoustical assembly.
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
The present invention relates to vibration sensor comprising a pressure detecting arrangement for detecting generated pressure variations, wherein the pressure detecting arrangement comprises a MEMS die and a signal processor, wherein the MEMS die comprises a front volume and a MEMS cartridge, and wherein the MEMS die comprises oppositely arranged first and second surfaces; a pressure generating arrangement for generating pressure variations in a coupling volume in response to vibrations of the vibration sensor, wherein the pressure generating arrangement comprises a frame structure comprising an indentation, a suspension member comprising first and second surfaces and a moveable mass secured to at least part of the first or second surfaces of the suspension member; and a PCB comprising a first surface, and a housing secured to the first surface of the PCB using an adhesive, wherein the housing and the first surface of the PCB define, in combination, a volume within which volume the pressure detecting arrangement and the pressure generating arrangement are arranged, wherein the coupling volume is defined by the indentation of the frame structure and at least part of the second surface of the suspension member, and wherein said coupling volume is acoustically connected to the MEMS cartridge of the MEMS die via an acoustical opening in the frame structure, and wherein the first surface of the MEMS die is secured to at least part of the frame structure, and wherein at least part of the second surface of the MEMS die is secured to the first surface of the PCB. The present invention further relates to a hearing device comprising such a vibration sensor, and to use of such a vibration sensor for detecting voice induced vibrations in the skull of a user of a hearing device.
G01H 11/06 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The present invention relates to a vibration sensor comprising a pressure detecting arrangement for detecting generated pressure variations, wherein the pressure detecting arrangement comprises a MEMS die and a signal processor, wherein the MEMS die comprises a front volume and a MEMS cartridge, and a pressure generating arrangement for generating pressure variations in a coupling volume in response to vibrations of the vibration sensor, wherein the pressure generating arrangement comprises a frame structure and a spring- mass system comprising a suspension member suspending a moveable mass secured to at least part of a first or a second surface of the suspension member, wherein the coupling volume is at least partly defined by the frame structure and at least part of the second surface of the suspension member in combination, and wherein said coupling volume is acoustically connected to the MEMS cartridge of the MEMS die via an acoustical opening, and wherein the suspension member suspends the moveable mass in an asymmetric manner. The present invention further relates to a hearing device comprising such a vibration sensor, and to use of such a vibration sensor for detecting voice induced vibrations in the skull of a user of a hearing device.
G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
An assembly of at least one radiation detector, at least one radiation emitter and a housing configured to be positioned inside the ear canal of a person or animal, the detector(s) and emitter(s) being provided in or on the housing, the emitter(s) being configured to emit radiation away from the housing and the detector(s) being configured to receive radiation directed toward the housing. No overlap may be provided between the field of view of the radiation detector(s) and the emitter(s), such as by providing a blocking element.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The present invention relates to a vibration sensor comprising a carrier substrate comprising a first surface and a second surface, a suspension member and a moveable mass secured thereto, wherein the moveable mass and/or at least part of the suspension member is/are adapted to vibrate when the vibration sensor is exposed to external vibrations, a read-out arrangement for detecting vibrations of the moveable mass and/or at least part of the suspension member, and a signal processor for at least processing an electric signal from the read-out arrangement, wherein the moveable mass forms a first projected area on a plane defined by the carrier substrate, and wherein the signal processor forms a second projected area on the plane defined by the carrier substrate, and wherein the first and second projected areas are, at least partly, spatially overlapping in the plane defined by the carrier substrate. The present invention further relates to a hearing device comprising such a vibration sensor, and use of the vibration sensor for voice recognition in a hearing device.
G01H 11/06 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
28.
COMPACT VIBRATION SENSOR WITH PIEZO ELECTRIC READ-OUT
The present invention relates to a vibration sensor comprising a carrier substrate comprising a first surface and a second surface, a suspension member and a moveable mass secured thereto, wherein the moveable mass and/or at least part of the suspension member is/are adapted to vibrate when the vibration sensor is exposed to external vibrations, a read-out arrangement for detecting vibrations of the moveable mass and/or at least part of the suspension member, and a signal processor for at least processing an electric signal from the read-out arrangement, wherein the read-out arrangement comprises one or more piezo electric layers and one or more electrodes arranged on the respective piezo electric layers. The suspension member forms a cantilever beam comprising a static end, a moveable end and a virtual hinge line arranged in between, wherein at least part of the moveable mass is secured to the cantilever beam between the virtual hinge line and the moveable end, and wherein the one or more piezo electric layers are secured to the cantilever beam in a manner so that the one or more piezo electric layers intersect the virtual hinge line. The present invention further relates to a hearing device comprising a vibration sensor and use of the vibration sensor for voice recognition in a hearing device.
G01P 15/09 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by piezoelectric pick-up
G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
29.
TRANSDUCER AND PORTABLE AUDIO DEVICE COMPRISING SUCH A TRANSDUCER
Van Der Beek, Gerardus Johannes Franciscus Theodorus
Groffen, Camiel Eugène
Hijman, Jan
Abstract
The invention relates to a transducer comprising a housing, the housing at least partly accommodating: at least one moveable element; at least one drive means for moving the at least one moveable element, the at least one drive means comprising a coil and a magnet assembly, and at least one seal. The at least one moveable element comprises two legs that are connected to each other, where the coil extends around a first leg of the two legs, such that the first leg is driven in a reciprocating movement by the drive means and the second leg that is connected to the first leg is thereby also driven in the reciprocating movement, and wherein the at least one seal is attached to the second leg. The invention also relates to a portable audio device comprising such a transducer.
A micro-electromechanical transducer including one or more moveable members, and a viscoelastic substance having a predetermined viscoelasticity, the viscoelastic substance being adapted to influence the response of the transducer in a predetermined manner. The micro-electromechanical transducer of the present invention may include a MEMS transducer, such as a MEMS microphone, a MEMS vibration sensor, a MEMS acceleration sensor, a MEMS receiver.
The invention relates to a sound channel and a portable audio device comprising such a sound channel, wherein said sound channel comprises a vent path, a closing element and a guiding surface for guiding a movement of the closing element, wherein said closing element is slidably moveable with respect to said guiding surface by a driving means between a first position in which the closing element substantially closes the vent path and a second position in which the closing element leaves the vent path open, and wherein the closing element comprises a stop surface that engages a stop element of the sound channel in the first position of the closing element and a sliding surface that extends substantially parallel to said guiding surface, wherein a liquid is present between the sliding surface of said closing element and the guiding surface. The invention also relates to a method of operating such a sound channel.
An amplifier for a dual backplate MEMS microphone (1) comprising at least a first source follower (6) which has a gate for connection to a first backplate (2) of the dual backplate MEMS microphone (1), and a load circuit(10) connected to a source of the first source follower (6) which provides an output signal of the filter, which filter comprises a second source follower (11) connected to a second backplate (3) of the dual backplate MEMS microphone (1), and a distortion detection circuit(15, 16) which is connected to the source of the first source follower (6) and to the source of the second source follower (11) for measuring distortion of the output signal at the source of the first source follower (6), wherein said distortion detection circuit(15, 16) is connected to a correctional circuit (18) that drives at least a first bias current source (8) for the first source follower (6).
The present invention relates to a sound and vibration sensor comprising pressure generating arrangement adapted to generate pressure variations in a first and a second rear volume in response to vibrations of the sound and vibration sensor, the pressure generating arrangement comprising a moveable mass secured to a suspension member, and a first and a second pressure detecting arrangement, wherein the first and second pressure detecting arrangements are acoustically connected to a front volume of the sound and vibration sensor, and wherein each front volume is acoustically connected to the exterior of the sound and vibration sensor via a sound inlet, wherein the first pressure detecting arrangement is acoustically connected to the first rear volume, and that the second pressure detecting arrangement is acoustically connected to the second rear volume. The present invention further relates to a personal audio device comprising a sound and vibration sensor.
B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems [MEMS]
G01H 1/00 - Measuring vibrations in solids by using direct conduction to the detector
G01H 5/00 - Measuring propagation velocity of ultrasonic, sonic or infrasonic waves
G01P 15/125 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by capacitive pick-up
34.
MOVEABLE ELEMENT FOR A TRANSDUCER, TRANSDUCER, IN-EAR DEVICE AND METHOD FOR DETERMINING THE OCCURRENCE OF A CONDITION IN A TRANSDUCER
The invention relates to a moveable element for a transducer, said moveable element being arranged to be moved indirectly or directly by a driving means of said transducer, said moveable element being arranged for outputting acoustic energy or for moving an outputting means for outputting said acoustic energy that is operatively coupled to said moveable element, wherein said moveable element comprises at least one sensor for sensing at least one parameter of the moveable element and/or of a volume defined by a housing of the transducer. The invention further relates to a transducer comprising such a moveable element and an in-ear device comprising such a transducer. The invention further relates to a method for determining the occurrence of a condition in such a transducer.
The present invention relates to a vibration sensor comprising a pressure generating element for generating pressure differences between a first and a second volume in response to vibrations of the vibration sensor, the first and second volumes being acoustically sealed from each other, and a pressure transducer for measuring pressure differences between the first and second volumes. The present invention also relates to an associated method for detecting vibrations.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 1/38 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
36.
Micro-electromechanical transducer with reduced size
The present invention relates to a micro-electromechanical transducer comprising a pressure detecting arrangement adapted to detect generated pressure variations, and provide an output signal in response to the detected pressure variations, wherein the pressure detecting arrangement comprises a microphone cartridge and a signal processing unit; a pressure generating arrangement adapted to generate pressure variations in response to vibrations thereof; and a volume separating element comprising one or more openings, wherein the microphone cartridge is at least partly arranged in a first opening of the volume separating element in order to reduce the overall height of the micro-electromechanical transducer. The present invention further relates to a hearing device comprising a micro-electromechanical transducer.
B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems [MEMS]
Acoustic valve (30) for a hearing device, including a valve body (31) defining a passageway (33), and a seat member (35) and shutter member (38) inside the valve body. The shutter member defines a shutter surface (44) that forms a contact portion (45) and a non-contact portion (47). The shutter member is moveable relative to the seat member to transition the valve (30) between an opened state, wherein the shutter member (38) is removed from the seat member (35) and the passageway (33) is open to allow sound to pass, and a closed state wherein the contact portion (45) abuts the seat member (35) and the non-contact portion (47) blocks the passageway (33) to restrict passage of sound. The contact portion (45) forms a protruding structure (46) that extends from the non-contact portion (47) and towards the seat member (35), and has a small width along at least one transverse direction to minimise a contact area between the contact portion (45) and the seat member (35) when the valve is closed.
The present invention relates to a micro-electromechanical transducer comprising a pressure detection arrangement and a sub-assembly adapted to cooperate with the pressure detection arrangement via a coupling volume, said sub-assembly comprising one or more moveable masses, a suspension member suspending a number of moveable masses, wherein the coupling volume is at least partly defined by the suspension member, and wherein the coupling volume is acoustically connected to an interior volume of the pressure detection arrangement, and wherein the suspension member comprises a viscoelastic material with a predetermined viscous and sealant behaviour in order to dampen one or more resonance peaks of the micro-electromechanical transducer and acoustically seal the coupling volume. The present invention further relates to a hearing device comprising such a micro-electromechanical transducer.
A hearing device (1) comprising a body (2) provided with a dome (3), wherein a vent path (4) is provided through the body (2), and wherein the body (2) is further provided with a valve (5) and a valve driver (6, 7, 8) which connects to the valve (5) for opening and closing of the vent path (4), wherein when the vent path (4) is closed the valve (5) engages the body (2), and wherein said valve driver (6, 7, 8) comprises a permanent or switchable magnet (6) and a first electrical coil (7) for generating magnetic field lines that cooperate with the permanent or switchable magnet (6) for moving the valve (5), wherein the valve driver (6, 7, 8) is arranged to energize the first electrical coil (7) with a current magnitude and/or direction that depends on a position of the valve (5) between an open position wherein the vent path (4) is open and a closed position wherein the vent path (4) is closed.
The present invention relates to an acoustical assembly (100) to be inserted into an ear canal, said acoustical assembly (100) comprising a receiver unit (101) to generate sound pressure waves, a microphone unit (102) to detect sound pressure waves inside the ear canal when the acoustical assembly (100) is inserted in the ear canal, and a nozzle (113) comprising a receiver unit mount (111) to house at least part of the receiver unit (101), wherein the nozzle (113) comprises at least one sound channel (105) to guide generated sound pressure waves from a receiver unit outlet (103) to at least one sound outlet opening (106, 107) of the nozzle (113), and wherein the nozzle (113) further comprises a microphone unit mount (112) to house at least part of the microphone unit (102). The present invention further relates to a hearing device comprising an acoustical assembly (100).
A hearing device (1) comprising a leading sealing ele- ment (2) and a trailing receiver (3) and valve (4), wherein in a longitudinal direction of the hearing device (1) the valve (4) is more distant from the sealing element (2) than the re- ceiver (3), and wherein the receiver (3) and the valve (4) each are unitary items that are separate from each other, and that the receiver (3) and the valve (4) are connected to each other by a flexible interlink (6).
An assembly of a sound generator having a sound output, a spout connected to the receiver, the spout having a sound channel having a first opening connected to the sound output and a second opening from which sound may be output. The spout has one or more third openings blocked by fastening portions of a dome, and a sensor positioned in the sound channel at the third opening(s). Sound may pass the sensor in the sound channel while travelling in the third opening(s). The assembly may be a personal hearing instrument and the sensor may be a microphone.
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
A hearing device such as a receiver-in-ear assembly. The assembly includes a housing having a cavity extending through the housing; an optical transducer mounted in the cavity within a thickness of the housing, the optical transducer being mounted on a circuit board layer such that a spacing exists between a side of the optical transducer and a sidewall of the cavity. The circuit board layer extends underneath the housing and touching the housing such that the optical transducer is held within the cavity without touching the housing. The assembly further includes a protective substance forming a shield over the optical transducer and the cavity, the protective substance configured to affect a field of view of the optical transducer.
A micro-electromechanical transducer including one or more moveable members, and a viscoelastic substance having a predetermined viscoelasticity, the viscoelastic substance being adapted to influence the response of the transducer in a predetermined manner. The micro-electromechanical transducer of the present invention may include a MEMS transducer, such as a MEMS microphone, a MEMS vibration sensor, a MEMS acceleration sensor, a MEMS receiver.
A personal hearing device with a first dome, a receiver, a speaker channel extending from the receiver through the dome to a speaker channel output, an acoustic vent channel extending from outside of the receiver and through the dome, where an acoustic separation is provided between the speaker channel output and the vent opening to reduce the amount of sound output by the receiver entering the vent channel.
A receiver assembly including a first receiver having a distinct longitudinal direction and a first longitudinal centre line, and a second receiver having a distinct longitudinal direction and a second longitudinal centre line. The distinct longitudinal directions of the first and second receivers are arranged essentially along a distinct longitudinal direction of the receiver assembly. The receiver assembly further includes one or more microphone units.
A communication device configured for use in a user's ear canal including a sealing mechanism configured to acoustically seal a section of the ear canal and a sound conduit in acoustic communication with a sound source. The sound conduit has a first and second opening, a conduit housing, and a vent opening. To provide a reliable adjustment for the venting of sound waves between a sealed section of the ear canal and an ambient environment outside the sealed section, an acoustic valve having a valve member is moveably coupled with the conduit housing, which moveable coupling is configured to provide a relative motion of the valve member and the conduit housing, such that by such relative motion the acoustic valve provides for opening the vent opening, closing the vent opening, and/or adjusting a size of the vent opening. The communication device further includes an electrical actuator to activate the relative motion.
The present invention relates to a miniature speaker comprising front and a rear volume, and one or more moveable diaphragms each comprising one or more cantilever beams, and associated one or more air gaps, arranged between the front and rear volumes, wherein the one or more cantilever beams are configured to bend or deflect in response to an applied drive signal, and wherein the one or more air gaps between the front and rear volumes remain essentially unaffected during bending or deflection of the one or more cantilever beams thus maintaining the acoustical leakage between the front and rear volumes at a minimum. The present invention further relates to a receiver assembly comprising such a miniature speaker, and to a hearing device, such as a receiver-in-canal hearing device, comprising such a receiver assembly.
G10K 9/125 - Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means with a plurality of active elements
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
A diaphragm assembly for a miniature acoustical transducer having a sufficiently light paddle to allow good audio performance and a sufficiently stiff frame to allow handling. The paddle may be made of a thin sheet of aluminium and the frame of thicker aluminium or a bent sheet of aluminium.
The present invention relates to a miniature speaker comprising a plurality of sound generating elements, wherein each sound generating element comprises a sound cavity and a moveable element associated therewith, wherein the moveable element comprises one or more cantilever beams configured to move said moveable element and thus generate sound pressure waves in response to an applied drive signal. The present invention further relates to a receiver assembly comprising the miniature speaker, and a hearing device comprising the receiver assembly.
A balanced armature receiver is disclosed that includes a housing and an armature assembly within the housing. The armature assembly includes a first armature portion and a second armature portion. The first armature portion and the second armature portion are operated such that the second armature portion is substantially unstable relative to the first armature portion.
A vibration sensor having a moveable mass adapted to move in response to vibrations or accelerations. The sensor includes a damping arrangement that includes a damping fluid or gel. The moveable mass is arranged to interact directly or indirectly with the damping fluid or gel in order to reduce a mechanical resonance peak of the vibration sensor. The damping fluid or gel has a viscosity between 1000 cP and 100000 Cp and damping properties that are substantially stable over time.
G01P 15/08 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
G01H 11/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
H04R 19/01 - Electrostatic transducers characterised by the use of electrets
G10K 11/00 - Methods or devices for transmitting, conducting or directing sound in generalMethods or devices for protecting against, or for damping, noise or other acoustic waves in general
An assembly of at least one radiation detector, at least one radiation emitter and a housing configured to be positioned inside the ear canal of a person or animal, the detector(s) and emitter(s) being provided in or on the housing, the emitter(s) being configured to emit radiation away from the housing and the detector(s) being configured to receive radiation directed toward the housing. No overlap may be provided between the field of view of the radiation detector(s) and the emitter(s), such as by providing a blocking element.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
An armature having a U-shaped element having a first leg portion and a second leg portion and an attachment portion. The attachment portion has a first leg and a second leg and a central portion connected to the legs, such as an E-shaped portion, where the first leg portion is connected to the central portion. A transducer can include such armature.
An amplifier with two parallel coupled amplifier units with inverse characteristics and in particular to the parallel coupling of a sourcing limited amplifier unit and a sinking limited amplifier unit.
The present invention relates to an augmented hearing device comprising a receiver of a first type being adapted to generate sound signals in a first and in a second frequency range, a receiver of a second type being adapted to generate sound signals in a third frequency range, said third frequency range being between the first and second frequency ranges, and an input port for receiving signals to be reproduced as sound signals via at least one of the receivers. The input port may be arranged to receive wireless input signal, such as Bluetooth input signals. The present invention further relates to a method for operating a hearing device.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A miniature receiver including a first moveable diaphragm being acoustically connected to an intermediate volume, and a second moveable diaphragm being acoustically connected to the intermediate volume and a rear volume. The acoustic compliance of the intermediate volume is smaller than the acoustic compliances of the respective first and second moveable diaphragms. An associated method is also disclosed.
The present invention relates to a vibration sensor comprising a pressure generating element for generating pressure differences between a first and a second volume in response to vibrations of the vibration sensor, the first and second volumes being acoustically sealed from each other, and a pressure transducer for measuring pressure differences between the first and second volumes. The present invention also relates to an associated method for detecting vibrations.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 1/38 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
60.
Vibration sensor with low-frequency roll-off response curve
A vibration sensor comprising a pressure detecting arrangement adapted to detect generated pressure variations, and provide an output signal in response to the detected pressure variations, and a pressure generating arrangement adapted to generate pressure variations in response to movements thereof wherein the pressure generating arrangement is secured to an exterior surface portion of the pressure detecting arrangement. In a preferred embodiment the pressure detecting arrangement comprises a stand-alone and self-contained MEMS microphone unit comprising a MEMS microphone cartridge and a signal processing unit.
G01H 3/00 - Measuring vibrations by using a detector in a fluid
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The present invention relates to a receiver assembly comprising a first receiver having a distinct longitudinal direction and a first longitudinal centre line, and a second receiver having a distinct longitudinal direction and a second longitudinal centre line, wherein the distinct longitudinal directions of the first and second receivers are arranged essentially along a distinct longitudinal direction of the receiver assembly. The receiver assembly further comprises one or more microphone units.
An assembly of a receiver and a microphone, such as for positioning in an ear canal of a person. The receiver and microphone are provided in an overlapping relationship to take up less space while being able to emit sound in one direction and receive sound from that direction. When the assembly if for use deep inside the ear canal of a person, the microphone may be very small, as it is exposed to very high sound levels.
A miniature speaker having at least a first and a second resonance in its frequency response. The miniature speaker includes a diaphragm for generating sound pressure waves in response to electrical drive signals, one or more sound channels at least partly surrounding a total air volume forming an acoustical mass, and one or more intermediate air volumes being acoustically connected to the one or more sound channels. The acoustical mass provides that the second resonance in the frequency response of the miniature speaker is positioned within an audible range.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
64.
Electronic circuit and in-ear piece for a hearing device
A method for controlling a controllable acoustic valve of a hearing device. The valve includes a moveable valve element adapted to be positioned in one of at least two essentially stable states. The moveable valve element is configured to be maintained in each of the essentially stable states by a retention force. A neutral point with essentially cancelling retention forces exists between the least two essentially stable states. The method includes providing a first drive signal to the controllable acoustic valve to overcome a retention force of a first essentially stable state in order to initiate movement of the moveable valve element from the first essentially stable state to a second essentially stable state. The provided first drive signal is capable of bringing the moveable valve element from the first essentially stable state and beyond a neutral point between the first and second essentially stable states.
F16K 11/07 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with linearly sliding closure members with cylindrical slides
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
H01F 7/06 - ElectromagnetsActuators including electromagnets
65.
Valve, a transducer comprising a valve, a hearing device and a method
A sound channel with a valve positioned in a sound channel, the valve based on an electro-magnetic positioned in a housing positioned in the sound channel without sound travelling through the housing. The valve may be used in hearing devices.
A sound channel with a side opening which may be opened or closed by an electromagnetic actuator. The sound channel may remain open and may thus be used as a spout of a sound generator for e.g. a hearing aid, where the side opening may be used as a vent.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
A personal hearing device with an outer housing and a sound path with a length of 1-24 mm, a diameter of 0.5-6 mm, a roll of frequency of at least 500 Hz and with a valve configured to open and close the sound path. The sound path has suitable acoustical properties to act as a sound passage for open/closed hearing aids or hearables. The valve is selected to have a small influence on the acoustical properties of the remaining portions of the sound path.
A sound generator including a housing having a first wall portion with a housing opening, a shielding element covering at least a portion of the first wall portion and having a shield opening, where the shielding element covers a portion of the first wall portion.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
69.
Diaphragm, a sound generator, a hearing device and a method
A diaphragm with a hinge portion and a drive portion and a plurality of oblong frame portions between the hinge portion and drive portion. The oblong frame portions are able to vibrate independently of each other and may have different resonance frequencies.
The present invention relates to a hearing device adapted to be positioned in an ear canal of a user, the hearing device comprising a receiver unit, a positioning member adapted to position and hold the hearing device in the ear canal of a user, and a vibration preventing arrangement adapted to prevent vibrations of a least part of the positioning member.
Van Der Beek, Gerardus Johannes Franciscus Theodorus
Groffen, Camiel Eugène
Kaszuba, Tomasz
Bialy, Krzysztof
Kurpiel, Grzegorz
Abstract
The present invention provides a receiver assembly. The receiver assembly comprises a receiver housing comprising a first housing part and a second housing part. The receiver housing defines an inner space, and the first housing part and the second housing part are movable relative to each other to define an open configuration and a closed configuration. The receiver assembly further comprises an armature extending in a first direction in the inner space, and a diaphragm operationally attached to the armature via a drive pin extending in a second direction, where the first and second directions are different. The drive pin and the armature are formed in one part. A circumferential edge part of the diaphragm is arranged in a joint between the first housing part and the second housing part in the closed configuration.
A vibration sensor having a moveable mass being suspended in a suspension member and being adapted to move in response to vibrations or accelerations. The moveable mass and the suspension member move together as a single element. The vibration sensor includes a damping arrangement having a damping fluid or gel. The moveable mass is arranged to interact directly or indirectly with the damping fluid or gel in order to reduce a mechanical resonance peak of the vibration sensor. The damping fluid or gel has a viscosity between 1000 cP and 100000 cP, is kept in position by capillary forces only, and is stable over time without tending to evaporate.
G01P 15/08 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
G01H 11/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
H04R 19/01 - Electrostatic transducers characterised by the use of electrets
G10K 11/00 - Methods or devices for transmitting, conducting or directing sound in generalMethods or devices for protecting against, or for damping, noise or other acoustic waves in general
Van Der Beek, Gerardus Johannes Franciscus Theodorus
Groffen, Camiel Eugène
Kaszuba, Tomasz
Bialy, Krzysztof
Kurpiel, Grzegorz
Abstract
The present invention relates to a receiver assembly comprising a membrane structure comprising a frame portion and a moveable diaphragm, an assembly housing, and an acoustical venting opening connecting an interior volume of the receiver assembly to an exterior volume outside assembly housing, the acoustical venting opening forming an acoustical passage at least through the membrane structure.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
Van Der Beek, Gerardus Johannes Franciscus Theodorus
Koenderink, Arno Willem
Mocking, Dennis Jacobus Mattheus
Abstract
A receiver-in-canal (RIC) assembly for positioning in or at an ear canal of a user. The RIC assembly includes a housing having an opening between an exterior space outside the housing and an internal space inside the housing, and a cable connection located in the housing and facilitating connection of a cable to the RIC assembly. Furthermore, the RIC assembly includes a first diaphragm extending in a first plane in the housing, and a first motor electrically connected to the cable connection and operatively connected to the first diaphragm. The cable connection is located relative to the first diaphragm such that at least a part of it can be projected onto a movable part of the first diaphragm in a direction perpendicular to the first plane and where the cable connection means is located in continuation of the first motor in a plane parallel to the first plane.
A circuit and a receiver comprising the circuit, the circuit is able to either feed a received signal directly to the receiver coil or amplify the signal before transmission to the coil. The circuit receives a supply power and amplifies the input signal if the supply power exceeds a threshold value.
A micro-electromechanical transducer including one or more moveable members, and a viscoelastic substance having a predetermined viscoelasticity, the viscoelastic substance being adapted to influence the response of the transducer in a predetermined manner. The micro-electromechanical transducer of the present invention may include a MEMS transducer, such as a MEMS microphone, a MEMS vibration sensor, a MEMS acceleration sensor, a MEMS receiver.
Van Der Beek, Gerardus Johannes Franciscus Theodorus
Hijman, Jan
Abstract
The present invention provides a receiver comprising a housing, an armature, and a magnet assembly, where the armature and the magnet assembly are arranged in the housing. The magnet assembly comprises a magnet and a magnet shell. The magnet shell forms an inner space in which the magnet is provided, and where at least a part of the armature extends in the inner space. The magnet shell comprises at least two shell parts forming an inner surface encircling the inner space, where each of the shell parts comprises a first and a second end face. The first end face of a first shell part abuts one of the first and second end faces of an adjacent shell part, and the second end face of the first shell part abuts one of the first and second ends faces of an adjacent shell part.
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
An E-shaped armature including a central, flat, elongate element for extending through the coil and magnet assembly of a transducer. The armature has two flaring sheets at one end for attachment to the transducer housing outside of a plane of the flat element and for facilitating the bending of the armature. A transducer may include the armature.
Van Der Beek, Gerardus Johannes Franciscus Theodorus
Klymko, Viktor
Grzeczynski, Tomasz
Abstract
A receiver assembly including a receiver and an assembly housing. The receiver includes a sound outlet configured to outlet sound from the receiver. Furthermore, the receiver includes at least a first and a second outer surface and is arranged at least partly within the assembly housing. The assembly housing includes an assembly sound outlet arranged in communication with the sound outlet for outlet of sound from the receiver via the assembly outlet. The receiver assembly further includes a suspension structure having at least one suspension element, the suspension structure suspending the receiver in the assembly housing. The suspension element connects the receiver and the assembly housing, and the suspension element is formed by a sheet material and is an elongated element extending in an longitudinal direction and is configured to dampen vibration of the receiver by deflection of the suspension element in a direction transverse to the longitudinal direction.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The present invention provides a receiver assembly comprising a receiver and an assembly housing. The receiver comprises a sound outlet configured to outlet sound from the receiver. The receiver is arranged at least partly within the assembly housing. The assembly housing comprises an assembly sound outlet. The sound outlet is arranged in communication with the assembly sound outlet for outlet of sound from the receiver via the assembly sound outlet. A vibration dampening element connects the sound outlet and the assembly sound outlet. The vibration dampening element is formed by an elastic foil and is compliant to reduce vibrations from the receiver to the assembly housing.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The invention is directed to a method for monitoring electro-acoustic performance of an electro-acoustic hearing device (1) that comprises an output transducer (5) emitting a vibration based output signal. According to the method a measure is detected that is characteristic for a vibration of the transducer (5) caused by emission of sound by means of a vibration sensitive sensor (8) that is directly or indirectly coupled with the receiver (5). Furthermore, the measure is compared with a reference measure, and an action is taken if the measure exceeds the reference measure.
A phase correcting system for connection with a transducer. The phase correction may take place before amplifying the output of the transducer. The phase correction system comprises a circuit configured to low-pass filter an input and feed the output to the non-signal terminal of the transducer. This circuit may comprise a transconductance amplifier.
An assembly including a transducer, such as a capacitive transducer, a vibration sensor or a microphone, and an amplifier for receiving and amplifying an output of the transducer, where the amplifier is supplied with a voltage being at least 60% of a voltage corresponding to an electrical field between two elements of the transducer. When the transducer is a biased transducer, the amplifier is supplied with a voltage being at least 60% of a biasing voltage of the transducer.
A system including a transducer and an amplifier as well as a circuit which always has a high impedance at low voltages. In addition, at high voltages, the circuit has a high impedance at high frequencies but a low impedance at low frequencies. In biased transducers, this circuit may be used between the charge pump and the transducer. In general, the circuit may be provided in a signal path between the transducer and the amplifier. The circuit has as an advantage that at startup, low frequency signals at high intensities may overload the amplifier, whereas at operation, higher frequency signals are desired fed to the amplifier at the same intensity. This is facilitated by the circuit.
A sensing system with an AC feedback to the non-signal and non-biased terminal of the transducer. An impedance element, such as two anti-parallel diodes, are provided at the amplifier input, and the amplifier gain is negative and has a size sufficient to ensure that the input on the one terminal does not exceed the forward voltage of the diode.
G01H 11/06 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
H04R 3/02 - Circuits for transducers for preventing acoustic reaction
H03F 1/34 - Negative-feedback-circuit arrangements with or without positive feedback
H03F 1/08 - Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
H03F 3/181 - Low-frequency amplifiers, e.g. audio preamplifiers
An ear bud or cone having multiple protruding, convex and soft elements which are configured to be deformed during insertion, extraction and operation in the ear canal of a person. The soft elements are cushion shaped and thus able to adapt to any shape of the ear canal without exerting excessive force to portions of the ear canal.
A receiver for a hearable, said receiver comprising a moveable membrane, and an arrangement for detecting the movements of the moveable membrane during, for example, a fitting process. The arrangement for detecting the movements of the moveable membrane may include one or more electrodes forming one or more capacitors in combination with the moveable membrane. The receiver may further include a moving armature type motor having an inductor being wounded around at least part of a moving armature. This inductor may form part of the arrangement for detecting the movements of the moveable membrane. The present invention further relates to a hearable and an associated method.
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
G01L 9/12 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elementsTransmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance
H04R 19/01 - Electrostatic transducers characterised by the use of electrets
A vibration sensor comprising a pressure detecting arrangement adapted to detect generated pressure variations, and provide an output signal in response to the detected pressure variations, and a pressure generating arrangement adapted to generate pressure variations in response to movements thereof wherein the pressure generating arrangement is secured to an exterior surface portion of the pressure detecting arrangement. In a preferred embodiment the pressure detecting arrangement comprises a stand-alone and self-contained MEMS microphone unit comprising a MEMS microphone cartridge and a signal processing unit.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
G01H 3/00 - Measuring vibrations by using a detector in a fluid
A vibration sensor having a moveable mass being suspended in a suspension member and being adapted to move in response to vibrations or accelerations. The moveable mass and the suspension member are rigidly connected across one or more gaps formed by respective opposing surfaces of the moveable mass and the suspension member. The vibration sensor includes a damping arrangement having a damping substance. The moveable mass is arranged to interact directly or indirectly with the damping substance in order to reduce a mechanical resonance peak of the vibration sensor.
G01H 1/00 - Measuring vibrations in solids by using direct conduction to the detector
G01P 15/08 - Measuring accelerationMeasuring decelerationMeasuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
A dome for a personal audio device. The dome forms a first flexible circumferential member and comprising a guiding structure extending in a longitudinal direction and forming an interface for guiding sound from or to the personal audio device. The guiding structure comprises a least one sound opening configured for passage of sound from or to the personal audio device in a direction transverse to the longitudinal direction of the guiding structure. The first flexible member is configured to at least partly close the sound opening during insertion of the dome into an ear canal of a user.
A receiver assembly comprising a first and a second receiver housing and a spout. The second receiver housing is positioned over a first sound outlet port of the first receiver housing and the spout is positioned over a second outlet port of the second receiver housing. An acoustic duct is located between the first and second receiver housing acoustically connecting the first sound outlet port to the spout and is provided with an acoustic mass.
H04R 1/26 - Spatial arrangement of separate transducers responsive to two or more frequency ranges
H04R 3/08 - Circuits for transducers for correcting frequency response of electromagnetic transducers
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
92.
Assembly comprising an electrostatic sound generator and a transformer
An assembly of a transformer and an electrostatic sound generator is especially efficient if the resonance frequency of the diaphragm is in the frequency range in which the generator is operated, such as in the interval of 1-20 kHz. Then, a smaller transformer with a winding ratio of 5000 or less may be used for feeding the sound generator, making the assembly suitable for hearing aid purposes or in-ear products such as for pro audio use.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A self-biasing output booster amplifier having an input amplifier stage, an output amplifier stage being operatively connected to an output of the input amplifier stage, and first and second current copying circuits. The second current copying circuit is biased from an output of the self-biasing output booster amplifier. The first and second current copying circuits are configured to copy at least a portion of the current through the output amplifier stage. The sum of the output of the second current copying circuit and the output of the output amplifier stage provides the output current of the self-biasing output booster amplifier, Finally, the input amplifier stage is biased from the output of the second current copying.
A balanced armature receiver is disclosed that includes a housing and an armature assembly within the housing. The armature assembly includes a first armature portion and a second armature portion. The first armature portion and the second armature portion are operated such that the second armature portion is substantially unstable relative to the first armature portion.
The present invention relates to an acoustical assembly extending in the x, y, and z directions, the acoustical assembly comprising first and second receiver units being spatially shifted relative to each other in the x direction thereby creating regions with free and available space, and one or more microphone units being positioned in the regions with free and available space. The present invention further relates to a hearing device comprising such an acoustical assembly.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
96.
Hearing device with vibration sensitive transducer
A hearing device, such as a hearing aid, having a vibration sensitive transducer being adapted to detect vibrations being generated by a human voice, and a digital signal processor for processing signals from the vibration sensitive transducer in order to identify a predetermined human voice vibration signal being related to the voice of the user of the hearing device, and control the hearing device in accordance therewith. The vibration sensitive transducer is secured directly to a shell so that vibrations are detected via a skull of the user of the hearing device. An automatic method for controlling a hearing device, such as a hearing aid, is also disclosed.
An acoustical module including a receiver unit for generating audio sound, microphone units for receiving acoustical pressure signals, and acoustical pressure pick-up points. Each of the acoustical pressure pick-up points is acoustically connected to a microphone unit. The module further includes an acoustical filter for attenuating acoustical pressure signals from a first acoustical pressure pick-up point relative to a second acoustical pressure pick-up point. The invention further relates to a hearing device comprising an acoustical module.
The present invention relates to an augmented hearing device comprising a receiver of a first type being adapted to generate sound signals in a first and in a second frequency range, a receiver of a second type being adapted to generate sound signals in a third frequency range, said third frequency range being between the first and second frequency ranges, and an input port for receiving signals to be reproduced as sound signals via at least one of the receivers. The input port may be arranged to receive wireless input signal, such as Bluetooth input signals. The present invention further relates to a method for operating a hearing device.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
The present invention relates to a receiver unit comprising a plurality of moveable membranes, a motor assembly being adapted to drive a first moveable membrane and one or more successive moveable membranes in accordance with an incoming electrical drive signal, wherein the first and at least one of the successive moveable membranes have different frequency responses in order to enhance the frequency response of the receiver unit. The present invention further relates to a hearing aid instrument comprising the receiver unit.
H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
A receiver assembly comprising a first and a second receiver housing and a spout. The second receiver housing is positioned over a first sound outlet port of the first receiver housing and the spout is positioned over a second outlet port of the second receiver housing. An acoustic duct is located between the first and second receiver housing acoustically connecting the first sound outlet port to the spout and is provided with an acoustic mass.
H04R 3/08 - Circuits for transducers for correcting frequency response of electromagnetic transducers
H04R 1/26 - Spatial arrangement of separate transducers responsive to two or more frequency ranges
H04R 31/00 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04R 5/033 - Headphones for stereophonic communication
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