Abstract: An electrode assembly arranged to change the impedance of the skin area (12a, 12) under the contacting surface (11) of the electrode (10). For this purpose the body of the electrode (10) comprises the impedance control means (14) arranged to discharge an amount of the electrolyte from a depot (14). This can be controlled by the discharge means (16) arranged to induce a force of the depot (14). Preferably, the discharge means operate with an ignitable pressurized gas (15) or with settable fibers. The electrode 10 is provided with pores (13) to conduct the electrolyte from the depot (14) to the inter space (12a) between the contacting surface (11) and the receiving area of the skin (12).

Abstract: A system (6) arranged to route a dialog between an operator of a call center and a customer. Said system comprising a communication script (44) arranged to follow a scenario corresponding to a customer's case by means of presenting a plurality of messages to the operator. Said system further comprising means (3,7) for determining a type of the scenario, means (11) for determining a current state of the scenario and a generator (9) of the communication script (44). Said generator being arranged to select a plurality of messages (44a, 44b, 44c) from a database of messages (10) in compliance with said type and said current state in order to obtain a plurality of selected messages. Ranking means (14b) are arranged to rank the selected messages, wherein the message with a higher relevance to the current state of the scenario being ranked higher. A user interface (8) arranged to present the selected messages together with their rank (46a, 46b, 46c) to the operator in a list (18).

Abstract: A wearable system (1) arranged to enable a bioelectrical interaction with an individual when being brought into a contact with the individual's skin (S). The system (1) comprises an electronic device with electrodes (3) to enable said interaction. The electrodes (3) are shaped to enable the fixation of the device on a suitable carrier (7), said carrier being provided with receiving portions (5) to enable said fixation.

Abstract: A system for monitoring a physiological condition of an individual. The system (1) comprises sensing means (3) arranged to pick up a first signal (M) in a first mode of the system, said first signal being representative of the physiological condition and to forward the first signal to a signal processing unit (33). The system comprises an actuatable control unit (2) positioned remote from the signal processing unit, the control unit (2) being suitable to generate a second signal (T) arranged to be superimposed on the first signal (M). The signal processing unit (33, 37) is arranged to decode the second signal and to make the system enter into a second mode upon receipt of the second signal (T).

Abstract: A wearable heart monitoring system (1) for monitoring of a cardiac arrhythmia, said system comprising ECG sensors (3) for providing patient heart data, a conditioning and interpreting circuitry (4) for processing the heart data, alarm generation means for generating an alarm, said conditioning and interpreting circuitry comprises a real-time evaluator for measuring and analyzing a histogram of a temporal distribution of an interval between successive corresponding characteristic peaks in an ECG spectrum during a plurality of successive heart cycles, the alarm generation means being arranged to generate an alarm based on the analysis of said histogram.

Abstract: The invention relates to a response system for detecting, locating and responding to a person in an abnormal physiological condition, said system comprising positioning means (12) arranged to provide an information about an actual location of the person and monitoring means (11) arranged to monitor an abnormality in the physiological condition of the person, said monitoring means comprising a sensor (6) to acquire a signal related to a physiological condition of the patient, a processor (8) to process the acquired signal in order to establish where the abnormal condition has occurred, said processor being arranged to produce a trigger signal to generate an alarm, an alarm generating means (10) arranged to generate the alarm upon a receipt of the trigger signal, said alarm generating means being further arranged to provide an indication of a location of the person said indication of the location being provided by a positioning means (12).

Abstract: A system for continuous monitoring of a physiological condition of a recipient arranged to alarm the recipient and a remote service center in case an abnormality in the physiological condition occurs. For that purpose the system comprises monitoring means provided with a set of electrodes to be arranged on the body of the recipient and to derive a signal related to said condition, detection means actuated by said electrodes and arranged to process said signal in order to derive a feature in the signal characteristic to said abnormality; alarm means arranged to trigger an alarm signal upon a detection of said feature by the detection means; transmission means arranged to transmit the alarm signal to a station responsive to said alarm signal. The system architecture is arranged in such a way that only the alarm signal is transferred to the station thus allowing the monitoring in a continuous way.

Abstract: A method for manufacturing method for manufacturing a wearable monitoring system, said method comprising a step of providing a fabric-based elastic belt for housing of electrodes, the electrodes being provided by molding of an electrode material through the elastic belt. The fact that the necessary electrodes are integrated in the belt of the garment contributes to the user-friendliness of such a monitoring system. Furthermore such a system is washable which further contributes to the comfort of the patient.

Abstract: The invention relates to a grid (3) for the absorption of X-rays (11). An anti-scatter grid for reducing the scattered radiation is readily manufactured by arranging a plurality of layers containing wire elements (10) that are spaced apart and an appropriate ruggedness is achieved also for large-area X-ray detectors.

Abstract: An X-ray detector that includes a sensor matrix and a scintillator arrangement and in which wire elements are spaced apart in layers A and B in order to reduce the crosstalk in neighboring detector elements. Scintillators are inserted at least partly in the grid openings formed.

Abstract: The invention relates to a piezoelectric drive device with a bimodal piezoelectric resonator, with at least a first control electrode for triggering the resonator in a first drive direction, with at least a second control electrode for triggering the resonator in a second drive direction, and with a trigger circuit for supplying control signals to the first and the second control electrode. The invention is characterized in that a regulating circuit is provided for regulating the control signals, the second control electrode is designed for supplying a feedback signal to the regulating circuit when the resonator is being triggered in the first drive direction by means of the first control electrode, and the first control electrode is designed for supplying a feedback signal to the regulating circuit when the resonator is being triggered in the second drive direction by means of the second control electrode.

Abstract: The invention relates to a method for scatter correction while forming a computed X-ray tomogram. The distribution of the scattered radiation is determined by detector cells (7′) which, because of the measuring method carried out, are shielded from direct irradiation in a two-dimensional, multi-cell detector field (3). This distribution is used to perform a scatter correction in the neighboring, directly irradiated detector cells (7). Furthermore, scatter correction can be performed by computer simulation of the scatter processes. To this end, use is preferably made of a Monte Carlo method and the effect of the geometry and the material composition of the measuring arrangement, of the patient size, of the irradiated tissue and the like, is taken into account.

Abstract: The invention relates to a light-sensitive semiconductor component that consists of pixels (1), wherein n doped dot zones (7) are provided, in a preferably hexagonal pattern, on the surface of a p doped channel region, the dot zones (7) of a pixel (1) being electrically connected to one another by means of leads (6) and to a collecting lead (4). The dot zones (7) form parallel connected semiconductor diodes whereby minority charge carriers that are generated by the incidence of light in the channel region can be detected after having traveled to the dot zones (7) by diffusion. The described arrangement enables a high sensitivity to be achieved throughout the channel region and also a minimum capacitance of the semiconductor constructed by means of the CMOS technique. Diffusion of charge carriers out of a pixel is prevented by a guard ring (3) of an opposed type of doping.

Abstract: An X-ray detector includes an array of X-ray sensitive sensors, each sensor including a conversion element which converts incident X-rays into electric charge pulses. The X-ray detector also includes an evaluation unit which is electrically connected to the conversion element in order to receive and evaluate the electric charge pulses. In order to form an X-ray detector which exhibits a high degree of linearity over a large dynamic range in conjunction with a higher maximum count rate and in order to avoid falsification of the calculated image by multiple counting of X-ray quanta, the evaluation unit includes a current/frequency converter as well as an electronic counter which is electrically connected thereto. The electric charge pulses from the conversion element are applied to the input of the current/frequency converter whose output pulses are applied to the electronic counter.

Abstract: The invention relates to a light-sensitive semiconductor component that consists of pixels (1), wherein n doped dot zones (7) are provided, in a preferably hexagonal pattern, on the surface of a p doped channel region, the dot zones (7) of a pixel (1) being electrically connected to one another by means of leads (6) and to a collecting lead (4). The dot zones (7) form parallel connected semiconductor diodes whereby minority charge carriers that are generated by the incidence of light in the channel region can be detected after having traveled to the dot zones (7) by diffusion. The described arrangement enables a high sensitivity to be achieved throughout the channel region and also a minimum capacitance of the semiconductor constructed by means of the CMOS technique. Diffusion of charge carriers out of a pixel is prevented by a guard ring (3) of an opposed type of doping.

Abstract: The invention relates to a detector for the detection of electromagnetic radiation (6, 9), including scintillators (S1-S5), a photosensor device (F1-F5) and an intermediate layer (10). The optical crosstalk due to multiple reflection in the intermediate layer is prevented in that at least parts of the intermediate layer (10) contain substances absorbing electromagnetic radiation (9).

Abstract: The invention relates to a computer tomograph provided with a charge-integrating read amplifier having a plurality of gain factors for a data acquisition system as well as a control circuit for the gain factor. In order to avoid noise in addition to the shot noise in computer tomographs of this kind and also to avoid degrading of the DQE (Detection Quantum Efficiency), according to the invention it is proposed that the control circuit automatically selects the gain factor in dependence on the expected integrated input signal of the next frame, the expectation being based on the maximum possible relative variation of the integrated input signal between two successive frames.

Abstract: The invention relates to a method for scatter correction while forming a computed X-ray tomogram. The distribution of the scattered radiation is determined by means of the detector cells (7′) which, because of the measuring method carried out, are shielded from direct irradiation in a two-dimensional, multi-cell detector field (3). This distribution is used to perform a scatter correction in the neighboring, directly irradiated detector cells (7). Furthermore, scatter correction can be performed by means of a computer simulation of the scatter processes. To this end, use is preferably made of a Monte Carlo method and the effect of the geometry and the material composition of the measuring arrangement, of the patient size, of the irradiated tissue and the like, is taken into account.

Abstract: In order to increase the ruggedness and the scattered radiation attenuation quality, a grid (3) with comb elements (12) which absorb electromagnetic radiation and are intended to form a grid is constructed, in such a manner that comb lamellae (11) extend transversely of an associated comb base surface which supports the comb lamellae (11).

Abstract: The invention relates to a computed tomography apparatus which includes a radiation source, a detector device and an analog-to-digital converter for converting the detector output signals into digital values. In order to realize a computed tomography apparatus in which the number of binary positions required for the encoding of the signal entering the analog-to-digital converter is reduced while using simple components which operate with a high degree of reliability, use is made of a read-out amplifier (1) which precedes the analog-to-digital converter (10), has a plurality of gain factors and a control system (12) for the relevant gain factor which, when a predetermined limit value of the integrated input signal is reached, automatically selects an appropriate, each time lower gain factor for the step-wise linear approximation of a proportional ratio between the digital values and the square root of the detector output signals.