Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A line card (1) in a private branch exchange (1) accommodates interfaces (1) which switch standard output frames on a system bus. These standard output frames contain control data in addition to subscriber data. As a result, the system frame of the system bus (SB) is not filled efficiently. By switching only the subscriber data from the standard output frames to the system bus by the switching means, the system frame is filled efficiently.

Abstract: Telecommunication systems such as PABXs are known which comprise ISDN digital linecards with a number of ISDN basic access interfaces. A telecommunication device is proposed comprising configurable ISDN digital linecards. To this end the linecards are provided with configuration means for independently configuring each ISDN basic access interface with respect to the other ISDN basic access interfaces as to mode setting and phantom power feeding to the transmission line to be coupled to the interface. The modes to be set are ISDN-NT or ISDN-TE mode. It is achieved that the PABX can be set to customer specifications without customer specific linecards having to be manufactured. Accordingly, no high manufacturing change-over costs are involved and no expensive extra documentation sets have to be drawn up, as would have been the case when many customer specific linecards would have to be manufactured.