Abstract: A method for evaluating an individual hearing benefit of an advanced hearing device feature, including providing a basic and an advanced hearing device feature in a hearing device, automatically classifying a current hearing situation, automatically selecting the advanced hearing device feature dependent on the classified hearing situation, applying the selected advanced hearing device feature for processing an audio signal, providing the processed audio signal to an output transducer of the hearing device, indicating to the user that the advanced hearing device feature is currently being applied, and providing a control for the user to switch off and on an effect of the second hearing device feature.

Abstract: A method for evaluating an individual hearing benefit of an advanced hearing device feature, including providing a basic and an advanced hearing device feature in a hearing device, automatically classifying a current hearing situation, automatically selecting the advanced hearing device feature dependent on the classified hearing situation, applying the selected advanced hearing device feature for processing an audio signal, providing the processed audio signal to an output transducer of the hearing device, indicating to the user that the advanced hearing device feature is currently being applied, and providing a control for the user to switch off and on an effect of the second hearing device feature.

Abstract: A fastening element for fixation of a wheel on a wheel axle has a first section and a second section that are movable relative to each other and are separated from each other by a plane of separation. The first section has devices for fixation on the wheel axle. The second section has a wheel axle cover. A substantially closed outer wall that is divided by the plane of separation is provided on the fastening element.

Abstract: A fastening element for fixation of a wheel on a wheel axle has a first section and a second section that are movable relative to each other and are separated from each other by a plane of separation. The first section has devices for fixation on the wheel axle. The second section has a wheel axle cover. A substantially closed outer wall that is divided by the plane of separation is provided on the fastening element.

Abstract: A method for wirelessly adjusting one or more hearing devices (1, . . . , 3) with a central unit (4) is presented, the method comprising the steps of: establishing a wireless network (6) wirelessly connecting the central unit (4) to hearing devices (1, . . . , 3), which are responsive to said wireless network (6), detecting said hearing devices (1, . . . , 3), identifying one or more of the detected hearing devices (1, . . . , 3, selecting one or more of the identified hearing devices (1, . . . , 3), establishing a wireless link from the central unit (4) to at least one of the identified hearing devices (1, . . . , 3), and adjusting the at least one identified hearing device (1, . . . , 3). Therewith, an audiologist is able to unambiguously assign one or two hearing devices (1, . . . , 3) in a fitting session, even if multiple hearing devices are within the range of the wireless network (6) or wireless transmitter, respectively.

Abstract: A hearing device has an adjustable transfer function comprising M?1 sub-functions (M is an integer). A method for operating the hearing device includes deriving input audio signals from a current acoustic environment. For each of the M sub-functions, derive, based on the input audio signals and for each class of N?2 classes that describe a predetermined acoustic environment, a class similarity factor indicative of the similarity of the current acoustic environment with the predetermined acoustic environment described by the respective class (N is an integer). Derive from N predetermined base parameter sets assigned to the respective sub-function and in dependence of the class similarity factors, an activity parameter set for the respective sub-function. Each of the N base parameter sets assigned to the respective sub-function is assigned to a different class of the N classes. Adjust the respective sub-function by means of the activity parameter set.

Abstract: The method for operating a hearing device having an adjustable transfer function comprising M sub-functions, wherein M is an integer with M?1, and wherein said transfer function describes how input audio signals generated by an input transducer unit of said hearing device relate to output audio signals to be fed to an output transducer unit of said hearing device, comprises the steps of: deriving said input audio signals from a current acoustic environment; and for each of said M sub-functions: deriving, on the basis of said input audio signals and for each class of N classes each of which describes a predetermined acoustic environment, a class similarity factor indicative of the similarity of said current acoustic environment with the predetermined acoustic environment described by the respective class, wherein N is an integer with N?2; deriving from N predetermined base parameter sets assigned to the respective sub-function and in dependence of said class similarity factors an activity parameter set fo

Abstract: A method for wirelessly adjusting one or more hearing devices (1, . . . , 3) with a central unit (4) is presented, the method comprising the steps of: establishing a wireless network (6) wirelessly connecting the central unit (4) to hearing devices (1, . . . , 3), which are responsive to said wireless network (6), detecting said hearing devices (1, . . . , 3), identifying one or more of the detected hearing devices (1, . . . , 3, selecting one or more of the identified hearing devices (1, . . . , 3), establishing a wireless link from the central unit (4) to at least one of the identified hearing devices (1, . . . , 3), and adjusting the at least one identified hearing device (1, . . . , 3). Therewith, an audiologist is able to unambiguously assign one or two hearing devices (1, . . . , 3) in a fitting session, even if multiple hearing devices are within the range of the wireless network (6) or wireless transmitter, respectively.

Abstract: The present invention is a one-phase stepping motor having a predetermined direction of rotation. The motor comprises a rotor having 2p permanently magnetized poles on its outer surface. The rotor is surrounded by a coil, which when energized forms the main stator poles. Auxiliary pole arms extend into the space between the coil and the rotor.The rotor and coil are stored in a two-part housing which magnetically isolates the motor. The auxiliary pole arms extend inward from the top and bottom surfaces of the housing and are formed integrally therewith.The arrangement of the auxiliary pole arms serves to determine the direction of rotation of the rotor. Illustratively, the auxiliary pole arms are divided into groups. Within each group, the auxiliary pole arms are at a distance from the rotor that decreases gradually or in stages in the direction of rotation of the rotor.This one-phase stepping motor is especially suitable for driving counting mechanisms in electricity meters.

Abstract: A stepping motor is disclosed, which includes an inventive arrangement of stator pole arms. The arrangement of stator pole arms has the effect of smoothing out the drive torque characteristic of the stepping motor.

Abstract: In a housing two ultrasonic measuring transducers are arranged opposite of the two end faces of a test tube. The test tube providing a measuring section penetrates a separating wall and interconnects two distribution chambers of the housing. The fluid to be measured flows through the test tube and influences the transit time of the ultrasonic impulses released and received by the measuring transducers. The test tube provides a constant cross-section of metallic material along the length of the measuring section. The connection between the test tube and the separating wall consists of a nonmetallic material, thus preventing echoes which may penalize the measuring accuracy.

Abstract: In a self-starting unidirectional synchronous motor which includes a stator, an exciting coil at least partly disposed within the stator, a permanent magnet type rotor which has a plurality of rotor poles and is at least partly disposed within the coil, and wherein a space is defined between the rotor and the coil, and the stator includes groups of unshaded main poles and groups of shaded auxiliary poles alternating with each other, and respective end zones are defined between adjacent groups, and each pole generates a corresponding magnetic field, the poles comprise pole arms extending into the space and include half poles disposed at least near the end zones, respectively, and wherein the groups of shaded poles are displaced with respect to the groups of non-shaded poles by respective spatial electrical angles, and the magnetic fields of groups of shaded poles are shifted with respect to groups of non-shaded poles by respective phase angles.

Abstract: An apparatus for ultrasonically determining fluid flow passing through a measurement section includes a tube which has two ends and an average predetermined inner cross-sectional area; the tube constitutes the measurement section. A sound-emitting transducer is disposed near one end of the tube, which has a first sound-transfer surface, and a sound-receiving transducer disposed near the other end of the tube, which has a second sound transfer surface. Each sound transfer surface is disposed at a sufficiently large predetermined distance from a corresponding end of the tube, so as to permit the fluid flowing through the tube. A fluid-receiving chamber communicates with the one end of the tube, and has a first average cross-sectional area, and a fluid-discharge chamber communicates with the other end of the tube, and has a second average cross-sectional area.