Abstract: The present invention provides a method of manufacturing a receiver-in-canal assembly. The method comprises the steps of providing a receiver housing configured to be positioned in or at the ear canal of a user, and further being configured to comprise a receiver configured to output sound; providing a connector housing configured to be connected to a behind-the-ear part of a hearing aid; and providing an elongated tube configured for transfer of a signal from the connector housing to the receiver housing. In a further step the receiver housing and the connector housing are attached to opposite ends of the elongated tube. Subsequently, the tube is permanently deformed after attachment of the receiver housing and the connector housing to the tube by exposing it to heat in a first predetermined treatment period.

Abstract: A hearing aid assembly comprising: a behind-the-ear part adaptor which is adapted to be connected to a behind-the-ear part; an ear piece which is adapted to be secured in the auditory canal of a user, such that sound may propagate into the auditory canal; and an interconnecting tube which is arranged between the behind-the-ear part adaptor and the ear piece, the interconnecting tube defining a first lumen and a second lumen each of which interconnects the behind-the-ear part adaptor and the ear piece, and wherein the interconnecting tube comprises a first connector and the behind-the-ear part adaptor comprises a second connector, the first and the second connectors being adapted to be connected to each other such that interconnecting tube is connected to the behind-the-ear part adaptor.

Abstract: An assembly having a male and female plug. The female plug has an elongate cavity extending along a longitudinal axis and having in the cavity signal conducting elements. The male plug has an outer surface positioned partly within the cavity with signal conducting elements provided on the outer surface, and clicking elements. The female plug has clicking elements that click or latch together with the clicking elements of the male plug when it is introduced into the female plug along the longitudinal axis. The signal conducting elements engage one another when the clicking elements of the male and female plugs are clicked together. The clicking elements of the female plug are positioned, in a cross section in a plane perpendicular to the longitudinal axis, symmetrically relative to a center point, in the plane, between positions of the clicking elements.

Abstract: A microphone assembly is provided that includes a condenser transducer element having a displaceable diaphragm and a back-plate. The displaceable diaphragm and the back-plate are arranged to form a capacitor in combination. A preamplifier circuit has an input stage, the input stage comprising a P-type field effect transistor. The displaceable diaphragm and the back-plate are operatively connected between a source input and a gate input of the P-type field effect transistor.

Abstract: A detachable earpiece auditory device comprises a housing, a speaker, and a connector. The housing has a sound outlet, a second opening, and a spring element positioned at the second opening. The speaker is provided within the housing and comprises an electrically conducting speaker terminal at an outer surface of the speaker. The connector comprises a first insert part, an electrically conducting connector terminal, and a second insert part. The first insert part is insertable into the second opening. The electrically conducting connector terminal is positioned in the first insert part to obtain electrical contact with the electrically conducting speaker terminal and forms a mating pair of a speaker terminal and a connector terminal when the first insert part is inserted into the second opening. The second insert part operatively contacts the spring element to bias the speaker terminal against the connector terminal with a predetermined bias force.

Abstract: A microphone assembly is provided that includes a condenser transducer element having a displaceable diaphragm and a back-plate. The displaceable diaphragm and the back-plate are arranged to form a capacitor in combination. A preamplifier circuit has an input stage, the input stage comprising a P-type field effect transistor. The displaceable diaphragm and the back-plate are operatively connected between a source input and a gate input of the P-type field effect transistor.

Abstract: The assembly includes a miniature electroacoustic transducer and a flexible electrical wire. The flexible electrical wire is terminated by a connecting element with an electrically conductive shoulder portion. The miniature electroacoustic transducer comprises an electrically conducting, externally accessible terminal having a slot structure formed therein. The slot structure is configured to mechanically and electrically engage the electrically conductive shoulder portion of the connecting element.

Abstract: A method of forming a connector for a hearing aid, by providing a plug, a receiver housing and an interconnecting tube; providing or arranging one or more accommodated elements in the interconnecting tube, and elongating the interconnecting tube by forcing the first and the second ends of the interconnecting elements away from each other whereby a length of the interconnecting element is increased. A connector for a hearing aid, the connector comprising a plug and a receiver housing interconnected by an interconnecting tube, wherein the width of the interconnecting tube is below 3 mm and wherein at least four electrical conductors are arranged in the interconnecting tube such that the electrical conductors co-extend with the interconnecting tube.

Abstract: A cerumen filter at least a part of which is adapted to be inserted into an opening of a hearing aid. The cerumen filter comprises a body defining an audio passage extending through the cerumen filter and a cerumen filter arrangement comprising an outer cerumen filter and an inner cerumen filter. The cerumen filter arrangement is arranged to prevent flow of cerumen into the audio passage.

Abstract: An assembly having a male and female plug. The female plug has an elongate cavity extending along a longitudinal axis and having in the cavity signal conducting elements. The male plug has an outer surface positioned partly within the cavity with signal conducting elements provided on the outer surface, and clicking elements. The female plug has clicking elements that click together with the clicking elements of the male plug when it is introduced into the female plug along the longitudinal axis. The signal conducting elements engage one another when the clicking elements of the male and female plugs are clicked together. The clicking elements of the female plug are positioned, in a cross section in a plane perpendicular to the longitudinal axis, symmetrically relative to a center point, in the plane, between positions of the clicking elements.

Abstract: An assembly having a first element that provides a signal that is received by a second element. The assembly includes a signal guide/transporter transporting the signal from the first to the second element and including a first and second connector/plug connected to the first and second elements, respectively. The assembly further includes an adapter for transmitting information to the first element and a third and fourth connector/plug. The third connector/plug is coupled to the first connector/plug to receive the signal, and the fourth connector/plug is coupled to the second connector/plug to transmit the signal received by the third connector/plug to the second connector/plug. The third and first connectors/plugs are adapted to forward the information transmitted by the adapter to the first element.

Abstract: An electroporation device having a handle section, a set of electrodes, and an electrode guide assembly. The handle section is operatively connected to an elongate introducer shaft, which has a longitudinal axis and a distal tip. The set of electrodes includes respective distal electrode tips. The electrode guide assembly is arranged inside the elongate introducer shaft and includes a set of electrode channels with each electrode channel guiding one or several electrodes. Each electrode is slidably arranged within an electrode channel between (a) a retracted position, where the distal electrode tips are enclosed inside the introducer shaft, and (b) an advanced position, where the distal electrode tips project to an outside of the introducer shaft. A set of longitudinally extending tip electrode channels are arranged in the distal tip and adapted to guide respective travel trajectories of the distal electrode tips during electrode advancement and retraction.

Abstract: A multifunctional switch and impulse generator assembly are disclosed that include a fixed base part enclosing an electrical pulse generator. A rotatable upper part with an actuation knob is included. The electrical pulse generator is adapted to provide electrical pulses on one or more externally accessible terminals in response to clockwise and/or counterclockwise rotary motion of the actuation knob. A slide switch is operable by horizontal movement of the actuation knob between a first state and a second state. In the first state the first and second switch terminals are electrically interconnected and in the second state first and second switch terminals are electrically isolated.

Abstract: A condenser microphone is provided having a transducer element. A diaphragm has an electrically conductive portion. A back-plate has an electrically conductive portion. A DC bias voltage element is operatively coupled to the diaphragm and the back-plate. A collapse detection element is adapted to determine a physical parameter value related to a separation between the diaphragm and the back-plate. A collapse control element is adapted to control the DC bias voltage element based on the determined physical parameter value.

Abstract: The present invention provides a miniature MEMS microphone comprising a single-ended transducer element connected to an amplifier providing a differential electrical output at terminals arranged at a substantially plane exterior surface. The differential or balanced output signal provides a miniature microphone exhibiting a high dynamic range and a reduced susceptibility to EMI. The microphone is adapted for surface mounting thus the extra output terminal required is still suitable for low cost mass production. In preferred embodiments the transducer element and amplifier are silicon-based. The microphone may have a plurality of separate single-ended transducer elements connected to separate amplifiers providing separate differential outputs. The microphones according to the invention are advantageous for applications within for example hearing aids and mobile equipment.

Abstract: In a first aspect the present invention provides a compact high efficiency driver suitable for driving a loudspeaker, such as a miniature loudspeaker for mobile phones or hearing aids. The driver comprising an interface for receiving an input signal, a three-level modulator, and a three-level H-bridge. The interface may be adapted to receive a digital input signal. In a preferred embodiment of the driver the H-bridge is controlled by a correction circuit which is operated by a Return-To-Zero scheme. In a further preferred embodiment the driver comprises a supply voltage step-up circuit for increasing a voltage supplied to the H-bridge. In a second aspect the present invention provides a miniature loudspeaker assembly having a built-in driver. In a third aspect the present invention provides a mobile device with a built-in miniature loudspeaker assembly.

Abstract: A microphone assembly is provided that includes a condenser transducer element having a displaceable diaphragm and a back-plate. The displaceable diaphragm and the back-plate are arranged to form a capacitor in combination. A preamplifier circuit has an input stage, the input stage comprising a P-type field effect transistor. The displaceable diaphragm and the back-plate are operatively connected between a source input and a gate input of the P-type field effect transistor.

Abstract: A preamplifier having extremely high input impedance amplifies the electrical signal output from an electret condenser microphone (ECM) without suffering from the effects of a DC leakage current at the input. The preamplifier circuit includes a pair of cross-coupled PN junction diodes setting the input impedance, a PMOS device, and a load resistor configured similarly to a conventional preamplifier. A capacitor is placed between the input and the cross-coupled diodes such that a DC path no longer exists to bias the cross-coupled diodes. Therefore, leakage currents are prevented from upsetting the DC operating point of the preamplifier and biasing the cross-coupled diodes. Consequently, small signal gain distortion, excessive demodulation products and increased noise can be avoided.

Abstract: The present invention relates to an electromechanical roller-key assembly of simple and robust construction. The assembly may be integrated in electronic equipment and generate digital control signals in response to an instantaneous change in angular position of a user-operated roller. The roller-key assembly according to the present invention is suitable for being manufactured with very small outer dimensions and with fewer and simpler mechanical parts compared to prior art roller-key assemblies, thereby making the roller-key assembly suitable for a simplified and automated factory assembly.

Abstract: A method for designing a single loop Sigma Delta Modulator, and a single loop Sigma Delta Modulator. A microphone comprising the above Sigma Delta Modulator (SDM) and a cellular phone or hearing aid incorporating the microphone. A design algorithm for an SDM is described said method resulting in a SDM with a maximum SNR for a given NTF order and the method assures stability while still keeping the distortion in the output signal at a minimum for signals exceeding MSA. The method further takes the presence of non idealities in i.e. components into consideration and makes the SDM less sensitive to these non idealities. Furthermore the method tailors the coefficients and the design of the NTF to fit a low power low voltage integrated circuit implementation.