Abstract:
A device and method for monitoring and/or assessing attention changes or lapses of a subject are described. The inventive device and method analyze the regularity of the period of a subject's cardiac cycle to detect a lapse or change of attention. When a subject is concentrating on a particular task or item the heart cycle exhibits strong regularity. But when attention to the task or item is interrupted or the subject's attention declines, the regular periodicity of the heart cycle declines. In a preferred implementation the heart cycle is detected by monitoring the subject's ECG waveform and performing cepstrum processing of the ECG data to determine a measure of R-wave regularity.
Abstract:
The present invention relates to an electronic device (1) which comprises a modular housing (2) comprising a plurality of stacked housing parts (4, 6) that are mechanically interconnected by connection means (8, 10), and which comprises electronic parts (16, 26) having contact portions (30, 32) for providing electrical contact between the parts, a housing part adapted to accommodate an electronic part and having contact members for providing electrical contact between the parts, which contact members comprise conductive tracks (12) provided on a first surface (14), wherein the contact members comprise conductive tracks (18) provided on a second surface (20), the tracks on the second surface of a housing part are electrically connected to the tracks on the first surface of said housing part, and the second surface faces towards the first surface of a next housing part when connected to the housing. The invention further relates to a housing part for assembling a modular housing accommodating electronic parts and to a method of manufacturing such a housing part.
Abstract:
A bio metric sensor device (1) comprises: - a thin, flexible, layered sensor body (2); - a conductive sense plate (21); - a first non-conductive layer (41) between the sense plate and an outer surface (7); - a conductive shield plate (53) having a passage opening (54), overlaying the sense plate; - a second non-conductive layer (51) between the sense plate and the shield plate; - conductive circuit lines (73) on an inner surface (6); - a non-conductive separation layer (61, 71) between the shield plate and the circuit lines; - a signal processing circuit (100) mounted on the inner surface (6), the circuit (100) comprising a differential amplifier (110) having an input (111); - a conductive interconnector (82) crossing the second non-conductive layer (51) and the separation layer (61, 71), extending through the passage opening (54) of the shield plate (53), coupling the sense plate (21) and said input (111) of said amplifier (110).
Abstract:
A body parameter sensing arrangement comprising clothing (10) and a plurality of sensors (12, 20) for sensing body signals, located at mutually movable relative positions in the clothing (10). Processing circuit (26) coupled to the plurality of sensors (12, 20), is configured to identify selected ones of the sensors (12, 20) that carry valid body signals. The identification by clustering the sensors (12, 20) according to similarity between signals from the sensors (12, 20). A cluster of sensors (12, 20) is determined with a maximal count of sensors (12, 20) within a minimal cluster diameter. A cluster diameter defined by a measure of similarity or distance between signals form the sensors is used. The cluster is used to select sensors (12, 20) to identify the selected ones of the sensors (12, 20) that carries valid body signals on the basis of membership of the cluster.
Abstract:
The present invention relates to an electronic device (1) which comprises a modular housing (2) comprising a plurality of stacked housing parts (4, 6) that are mechanically interconnected by connection means (8, 10), and which comprises electronic parts (16, 26) having contact portions (30, 32) for providing electrical contact between the parts, a housing part adapted to accommodate an electronic part and having contact members for providing electrical contact between the parts, which contact members comprise conductive tracks (12) provided on a first surface (14), wherein the contact members comprise conductive tracks (18) provided on a second surface (20), the tracks on the second surface of a housing part are electrically connected to the tracks on the first surface of said housing part, and the second surface faces towards the first surface of a next housing part when connected to the housing. The invention further relates to a housing part for assembling a modular housing accommodating electronic parts and to a method of manufacturing such a housing part.
Abstract:
A device (1) for determining a stress related condition of a person and providing feedback about this condition comprises body sensors (20) for detecting stress related body parameters, a stress assessing element (40), and a feedback device, wherein the stress assessing element (40) is designed for processing input provided by the body sensors (20) and for determining control parameters for controlling the feedback device, on the basis of the input provided by the body sensors (20). The body sensors (20) are integrated in a textile structure, so that the tested person does not sense the sensors (20), as a result of which there is no chance that the test results get influenced by an interaction between the device (1) and the person.
Abstract:
A treatment system (1600, 1900) is provided for traversing the alimentary tract. The system (1600, 1900) includes an ingestible capsule, which includes a gas pressurizing module (1602)) providing a gas and at least one balloon (1604, 1901) in fluid communication with the gas pressurization module (1602). The capsule further includes an exhaust channel (1610) in fluid communication with a respective balloon of the at least one balloon (1604, 1901), and a depressurizing closure member (1608) for selectively controlling flow of gas between the balloon (1604, 1901) and the ambient surroundings of the capsule. The system further includes control circuitry (906) for controlling the depressurizing closure member (1608).
Abstract:
A system (1) for playing board games comprises a game board (2) and at least one pawn (20). The game board comprises display means (4, 5 and 6) for displaying on a board surface (3) a game board layout. The display means are further arranged to display a pawn input image (22) on the board surface (3). The pawn (20) comprises a contact surface (21) for supporting the pawn (20) on the board surface (3), and an image input part (23) cooperating with the board surface (3) to receive the pawn input image (22). The pawn also comprises an image surface (24) to display a pawn output image (25), and means for conducting (26) the pawn input image (24) from the image input part (23) to the image surface (24).
Abstract:
In an interrogation system (100) with a station (101) and a passive device (102), the station (101) interrogates the passive device (102) for a quantity (103) by transmitting an electromagnetic pulse (105). The passive device (102) has a cavity (109) that influences an ultrawideband reflection of the electromagnetic pulse (105) by the passive device (102). The quantity (103) of the passive device (102) influences a physical property (110) of the cavity (109). The station ((101) receives and analyses the reflection to obtain the quantity (103).
Abstract:
Disclosed is a hydrogen storage material comprising a magnesium hydride. Said magnesium is stabilized in the fluorite structure. Preferably, the magnesium is at least partly substituted by an element such that the magnesium hydride is stabilized in the fluorite structure. In an advantageous embodiment, the hydrogen storage material also comprises a catalytically active material. Furthermore, an electrochemically active material, as well as an electrochemical cell comprising the above hydrogen storage material are disclosed.