Siemens Aktiengesellschaft

Siemens Medical Instruments Pte. Ltd.

Ferdinand Dietz

Roland Finkler

Rainer Siess

Paul Dünisch

Ralph Baran

The miniaturization and wearing comfort of hearing aid devices increasingly runs the risks of a hearing aid device worn on or in the ear of a user getting lost without user realizing. The invention relates to a hearing aid device system comprising a first and a second hearing aid device which is worn on the head or body of a user to provide an electronic loss protection system which is reliable and easily manageable for a user. The first hearing aid device controls a presence of a radio link and/or a signal level of a signal sent from the second hearing aid device and received in the first hearing aid device. If the radio link breaks or the signal level drops below a threshold value, an information signal is generated by the first hearing aid device to inform the user of the loss of the second hearing aid device.

Loss protection system for hearing aid devices

The invention relates to a measuring apparatus comprising a sensing head () for determining the position of a primary part () on a secondary part. The sensing head () is fixedly connected to a primary part () or is integrated therein while the primary part () and the secondary part form a linear motor (). Furthermore, the secondary part is embodied as a rack () which is provided at least with ferromagnetic material and preferably equidistant teeth () in a preferred direction (), said teeth () containing at least ferromagnetic material. The sensing head () can be moved in the preferred direction () and opposite thereto. An air gap is located between the sensing head () and the rack () while the sensing head () is equipped with at least one sensor (-), by means of which magnetic fields can be measured in order to determine a position.

Measuring device for determining a position between a primary part and a secondary part by magnetic flux measurements

A processing machine, in particular a processing center, with a spindle, a tool clamping device, a converter unit with a spindle motor, at least one oscillation sensor and a balancing apparatus is disclosed. The oscillation sensor(s) and the balancing device are connected for signal transmission with a control device of a converter unit. The control device includes a balancing program. The processing machine with this type of automatic balancing system requires less wiring and less space than conventional systems.

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Stuttgart, Germany

Ferdinand Dietz