摘要:
Pressure actuator, provided with a carrier structure, shape memory material, integrated with and/or attached to the carrier structure, and at least one heating element in the vicinity of the shape memory material that is configured to at least locally vary the shape of the shape memory material that is in the vicinity of the heating element. In specific embodiments, the pressure actuator is provided with at least one heating element separate from the shape memory material, which at least one heating element may be configured to vary temperature within the shape memory material locally.
摘要:
The invention relates to a microelectronic device (200), particularly a magnetic biosensor, comprising B/E-electrodes (21) that can generate a magnetic field (B) in a sample chamber (10). The device further comprises E-electrodes (23, 24) that can generate an electrical field (E) in the sample chamber (10) in cooperation with the B/E-electrodes (21). Thus the B/E-electrodes are used for two purposes. Electrical fields (E) in the sample chamber (10) may particularly be used for pumping and/or mixing of a fluid sample or for a stringency test of particle bindings.
摘要:
An apparatus and method for modifying a psychophysiological state of a subject include detecting a psychophysiological measure of the subject; processing the detected physiological measure so as to provide a signal indicative of a psychophysiological state of the subject; and outputting at least one of an audio stimulus, visual stimulus, haptic stimulus, temperature stimulus and scent stimulus to the subject. The output stimulus may be derived from an audio-visual data signal provided to the apparatus. Further, the output stimulus is adjusting in real time based on the signal indicative of a psychophysiological state of the subject.
摘要:
A method of maintaining a state in a subject includes measuring one or more physiological parameters of the subject, calculating, using the measured parameter(s), a value, determining if the calculated value is below a lower threshold or above an upper threshold, and generating an output to the subject if the calculated value is determined to be below the lower threshold or above the upper threshold. In one embodiment, the generating an output to the subject includes generating a first output if the calculated value is determined to be below the lower threshold and generating a second output if the calculated value is determined to be above the upper threshold, the second output being different from the first output.
摘要:
A display device and a method for driving the display device is disclosed. The display device comprises drive circuitry (35) and a plurality of pixels (PIX1, PIX2, PIX3, PIX4, PIX5, PIX6) having movable charged particles (116). The drive circuitry is configured to apply control signals to the pixels to move the charged particles between first (110) and second (112) regions of each pixel in order to alter the optical appearance of each pixel. The method for each pixel comprises a pre-addressing stage (PRA) of moving the charged particles towards the boundary (114) between the first and second regions, and then an addressing stage (ADD) of moving the particles to one side or the other side of the boundary, in dependence on the desired optical appearance of the pixel.
摘要:
The invention relates to different designs of a microelectronic sensor device comprising an array of heating elements (HE) and an array of sensor elements (SE) that are aligned with respect to each other adjacent to a sample chamber (SC). By applying appropriate currents to the heating elements (HE), the sample chamber can be heated according to a desired temperature profile.
摘要:
Electrophoretic display units (1) comprising pixels (11) situated between common electrodes (6) and pixel electrodes (5) need, for shortening the total image update times, increased driving voltages across the pixels (11) which endanger transistors (12) coupled to the pixel electrodes (5). These increased driving voltage (V6) to the common electrode (6). To protect the transistors (12) against these increased driving voltages, a setting signal (S1, S2) is supplied to the pixel electrode (5) via the transistor (12) for reducing a voltage across the pixel (11) resulting from a transition in the alternating voltage signal (V6). During driving frame periods (Fd) data pulses (D1, D2, D3, D4, D5, D6) are supplied, and during setting frame periods (Fs), the setting signals (S1, S2) are supplied.
摘要:
A display apparatus (1) comprises a matrix display device (DD) with pixels (10) wherein particles (14) move in a fluid (13) between electrodes (6, 6′, 7). An optical state of the pixels (10) is defined by a value of a drive voltage (VDi) and a duration (Di) of a drive period (TDi) during which the drive voltage (VDi) is present across the pixel (10). A DC-balancing circuit (3) controls the amplitudes of the drive voltages (VDi) and/or durations (Di) of drive periods (TDi) to obtain a substantially zero time-average value (N) across each pixel (10) or across each sub-group of pixels. This control of the amplitude of the drive voltages (VDi) and/or the duration (Di) of the drive periods (TDi) allows minimizing the image retention, without requiring reset pulses causing all pixels (10) to become temporarily white or black. In a preferred embodiment in accordance with the invention, a display device (DD) is used in which a drive voltage (VDi) is supplied to the pixel (10) with a level such that the grey level (or the amount of colorization) does not change anymore after an initial period of time. Now, if applicable, the DC-balancing can be performed by making the duration (Di) of the drive periods (TDi) longer than the initial period of time.
摘要:
A method of maintaining a state in a subject (12) comprises generating a pacing signal (20) at a first frequency, presenting to the subject an output based upon the generated pacing signal, measuring one or more physiological parameters of the subject, detecting that the measured parameter(s) conform to a desired state in the subject, and either removing the presentation to the subject of the output based upon the generated pacing signal, or generating a new pacing signal at a second frequency, and presenting to the subject an output based upon the generated new pacing signal. The method can further comprise, prior to the detecting that the measured parameter(s) conform to a desired state in the subject, adjusting the pacing signal according to feedback from the measured parameter(s). In a preferred embodiment, the method also further comprises detecting that the measured parameter(s) no longer conform to a desired state in the subject, and presenting to the subject an output based upon the original generated pacing signal.
摘要:
An apparatus and method for modifying a psychophysiological state of a subject (150) is presented. The method comprises the steps of: detecting a psychophysiological measure of the subject; processing the detected physiological measure so as to provide a signal indicative of a psychophysiological state of the subject; outputting at least one of an audio stimulus, visual stimulus, haptic stimulus, temperature stimulus and scent stimulus (176, 177) to the subject the output stimulus being derived from an audio-visual data signal provided to the apparatus; and adjusting the output stimulus in real time based on the signal indicative of a psychophysiological state of the subject.