Abstract: A steel material for a torsionally stressed component, such as a driveshaft, having a minimum tensile strength of 800 MPs, and the microstructure consists of more than 50 vol. % of bainite, having an alloy with the following composition in wt. %: C: 0.02 to 0.3; Si: up to 0.7; Mn: 1.0 to 3.0; P: max. 0.02; S: max. 0.01; N: max. 0.01; Al: up to 0.1; Cu: up to 0.2; Cr: up to 3.0; Ni: up to 0.3; Mo: up to 0.5; Ti: up to 0.2; V: up to 0.2; Nb: up to 0.1; B: up to 0.01; where 0.02?Nb+V+Ti?0.25, residual iron, and smelting impurities. The steel material is inexpensive and has good torsional fatigue strength when used for a torsionally stressed component. The invention also relates to a method for producing a component made of the material and to such a component.

Abstract: A method, and corresponding system (300), for monitoring patients based on activity state and posture. Activity state and/or posture of a patient are measured. Further, one or more vital signs of the patient are measured according to a schedule. Based on the measured activity state and/or posture of the patient and the measured one or more vital signs, the schedule is adjusted and/or patient deterioration is monitored for.

Abstract: A medical device (10), medical method and graphical user interface (GUI) (18) displaying data regarding measurement of a physiological parameter. A window (22) for the physiological parameter is displayed using a display device (20). The window (22) includes an indicator (24) identifying a measured value of the physiological parameter. In response to automatic trigger of measurement of the physiological parameter, the window (22) is updated to further include a first indicator (34) indicating measurement of the physiological parameter is ongoing. In response to manual trigger of measurement of the physiological parameter, the window (22) is updated to replace the indicator (24) identifying the measured value with a second indicator (36) indicating measurement of the physiological parameter is ongoing. The second indicator (36) is prominent relative to the first indicator (34).

Abstract: The invention relates to a device (300) for controlling a sensor (310), comprising a converter unit (320) for converting an input signal (365) into a control signal (360) for controlling said sensor (310), and a comparison unit (330) for determining a differential signal (370) that indicates the difference between said input signal (365) and control signal (360). The device also comprises a feedback unit (340) for regulating the input signal (365) using said differential signal (370). A differential signal (370) transfer function has a zero point at a sensor (310) operating frequency which does not equal zero.

Abstract: The invention relates to a device (300) for controlling a sensor (310), comprising a converter unit (320) for converting an input signal (365) into a control signal (360) for controlling said sensor (310), and a comparison unit (330) for determining a differential signal (370) that indicates the difference between said input signal (365) and control signal (360). The device also comprises a feedback unit (340) for regulating the input signal (365) using said differential signal (370). A differential signal (370) transfer function has a zero point at a sensor (310) operating frequency which does not equal zero.

Abstract: The invention relates to an integrated optical coupler (1) comprising a substrate (3), at least two planar waveguides (4), which are arranged on or in the substrate (3) and consist of a material having a virtually isotropic refractive index (anisotropy of the refractive index of less than 10?6), and al least three monomode fibers (8, 9, 10) coupled to the planar waveguides (4). One of the monomode fibers (8) is a polarization-maintaining fiber. A fiber optic system according to the invention comprises an integrated optical coupler (1) according to the invention, a light source (21) that is suitable for generating light beams, and a first pigtail fiber (22), which is connected at one end to the light source (21) and at the other end to the polarization-maintaining fiber (8) of the integrated optical coupler (1).

Abstract: A sensor apparatus for monitoring a vital sign of a subject comprises at least one sensor configured to measure a sensor signal representing a vital sign or being related to a vital sign, an evaluation unit configured to evaluate said sensor signal to determine, based on previously measured sensor signals, changes of the health condition of the subject and/or to identify an unsuccessful measurement or an unreliable sensor signal, and a control unit configured to control said at least one sensor to automatically change the measurement interval based the result of said evaluation.

Abstract: The invention relates to an integrated optical coupler (1) comprising a substrate (3), at least two planar waveguides (4), which are arranged on or in the substrate (3) and consist of a material having a virtually isotropic refractive index (anisotropy of the refractive index of less than 10?6), and al least three monomode fibres (8, 9, 10) coupled to the planar waveguides (4). One of the monomode fibres (8) is a polarisation-maintaining fibre. A fibre optic system according to the invention comprises an integrated optical coupler (1) according to the invention, a light source (21) that is suitable for generating light beams, and a first pigtail fibre (22), which is connected at one end to the light source (21) and at the other end to the polarisation-maintaining fibre (8) of the integrated optical coupler (1).

Abstract: A medical device (10), medical method and graphical user interface (GUI) (18) displaying data regarding measurement of a physiological parameter. A window (22) for the physiological parameter is displayed using a display device (20). The window (22) includes an indicator (24) identifying a measured value of the physiological parameter. In response to automatic trigger of measurement of the physiological parameter, the window (22) is updated to further include a first indicator (34) indicating measurement of the physiological parameter is ongoing. In response to manual trigger of measurement of the physiological parameter, the window (22) is updated to replace the indicator (24) identifying the measured value with a second indicator (36) indicating measurement of the physiological parameter is ongoing. The second indicator (36) is prominent relative to the first indicator (34).

Abstract: A method, and corresponding system (300), for monitoring patients based on activity state and posture. Activity state and/or posture of a patient are measured. Further, one or more vital signs of the patient are measured according to a schedule. Based on the measured activity state and/or posture of the patient and the measured one or more vital signs, the schedule is adjusted and/or patient deterioration is monitored for.

Abstract: A memory device containing data to be protected is integrated with a microprocessor and includes a first and a second memory portion with different accessibilities. The integration of the memory device on the same integrated circuit (IC) or chip as the microprocessor permits a combination of protective hardware and software measures that are not possible with a memory device that is on a different IC than the microprocessor. The first memory portion holds an initialization program that also serves as a boot program during decryption, and the second memory portion holds a user program, for example, a program for decrypting and/or decoding received data. Such data may be, for example, audio data encoded according to the MP3 standard and encrypted with a secret or public password against unauthorized reception.

Abstract: A memory device (1) for a processor (10) is disclosed. The memory device (1) and the processor (10) are integrated on a single chip. The memory device (1) comprises a first memory portion (2) for an initialization program and a second memory portion (3) for a user program. The first memory portion (2) can be written to and/or read from via a first group of data interfaces (16, 18), and the second memory portion (13) can be written to and/or read from via a second group(16, 17, 18). The first and/or second memory portions (3) contain memory blocks (4, 5, 6, 7) which are addressable block-by-block. A first memory block (4) comprises a protection control register (PCR) containing programmable enabling or disabling information for the individual data interfaces. An interrogation of the protection control register (PCR) takes place upon power-up.

Abstract: Strictly out-of-phase stimulation of the two oscillators of a micro-mechanical rate-of-rotation sensor based on the Coriolis principle, having two-plate like oscillators arranged in layers one above another in two parallel planes and capable of being stimulated to oscillate perpendicular to the planes by means of an electrostatic drive, is achieved by the oscillators each being connected via at least one spring to a couple element formed, in each case, in the same wafer layer. The couple elements are mirror-symmetrically configured with respect to a mid-plane between the oscillators and connected to each other by a coupling web arranged therebetween to form a couple structure for the oscillators.