摘要:
The invention relates to a sensing apparatus for sensing an object. The sensing apparatus comprises an ultrasound unit (11) for ultrasonically sensing the object (4), an electrical energy application unit (9) for applying electrical energy to the object (4), and an ultrasound unit shielding element (16) for electrically shielding the ultrasound unit (11), wherein the ultrasound unit shielding element (16) is electrically connected to the electrical energy application unit (9). Since the ultrasound unit shielding element electrically shields the ultrasound unit, the ultrasound sensing of the object is less influenced by a capacitive coupling of the application of electrical energy, in particular, of an RF signal which may be used for applying the electrical energy, into the ultra-sound sensing. A further reduction of this influence is achieved by electrically connecting the ultrasound unit shielding element to the electrical energy application unit.
摘要:
A driver (106) for driving pixels (104) of a display (102), wherein the pixels are divided into a first group and a second group and the driver is constructed for supplying a first drive signal to a first pixel and a second drive signal to a second pixel, the first and second pixels being neighboring pixels. The driver (106) comprises means for generating a first upper value and a first lower value; and means for generating a second upper value and a second lower value. It comprises means for driving, in a first operating mode, the first pixel with the first lower value and driving the second pixel with the second upper value. In a second operating mode, driving the first pixel with the first upper value and driving the second pixel with the second lower value. Means (108) for controlling the operating mode alternates between the first operating mode and the second operating mode.
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:
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:
A method and a control system (20) are provided for determining a relation between stimulation settings for a brain stimulation probe (10) and a corresponding V-field. The brain stimulation probe (10) comprises multiple stimulation electrodes (11). The V-field is an electrical field in brain tissue surrounding the stimulation electrodes (11). The method comprises sequentially applying a test current to n stimulation electrodes (11), n being a number between 2 and the number of stimulation electrodes (11) of the brain stimulation probe (10), for each test current at one of the n stimulation electrodes (11), measuring a resulting excitation voltage at m stimulation electrodes, m being a number between 2 and the number of stimulation electrodes (11) of the brain stimulation probe (10), from the stimulation settings and the measured excitation voltages, deriving an (m*{acute over (η)}) coupling matrix, an element (q, p) in the coupling matrix reflecting an amount of electrical impedance between two of the stimulation electrodes (11), and using the coupling matrix for determining the relation between the stimulation settings and the corresponding V-field.
摘要:
A backlight control system is configured to control a backlight of a display that includes light sources positioned at light source positions for providing illumination to the backside of the display panel. The system includes a drive value generator configured to provide light source drive values for causing the backlight profile to gradually descend around a high luminance portion of the display at a rate that is independent of a position of the high luminance portion with respect to the light source positions. The high luminance portion of the display has a higher luminance than an area around the high luminance portion of the display.
摘要:
A method is provided of driving an electronic device comprising an array of device elements, each device element comprising particles which are moved to control a device element state, and each device element comprising a collector electrode, and an output electrode. The method comprises: in a reset phase, applying a first set of control signals to control the device to move the particles to the a reset electrode; and in an addressing phase, applying a second set of control signals to control the device to move the particles from the reset electrode such that a desired number of particles are at the output electrode. The second set of control signals comprises a pulse waveform oscillating between first and second voltages in which the first voltage is for attracting the particles to the reset electrode and the second voltage is for attracting the particles from the reset electrode to the output electrode, and wherein the duty cycle of the pulse waveform determines the proportion of particles transferred to the output electrode in the addressing phase. This control method provides well-controlled packets of particles which are collected in a vortex at the reset electrode before being passed on, in part, towards the output electrode (for example via the gate electrode).
摘要:
In cardiac ablation for treatment of atrial fibrillation where lesions have to be made to the heart wall, an ultrasound monitoring mechanism is adapted to assess the progress of the lesion, so that a surgeon can provide lesions with adequate depth, wherein interference caused by an ablation device is reduced and signal to noise ratio of echo signals is improved.
摘要:
A method and apparatus for increasing the brightness of a color-sequential matrix display, in which the matrix display is addressed on a line-by-line basis, includes dividing a frame period of said matrix display into sub-fields corresponding to the number of light colors being used to sequentially illuminate said matrix display illuminating the display sequentially with said light colors, each for the duration of the corresponding sub-field, and pre-processing the video signal to compensate for errors due to illuminating the display during the addressing time and LC response time. The pre-processing includes determining a direction and an amount of gray scale level change from a preceding sub-field to a current sub-field, and increasing or decreasing the video signal in the current sub-field in dependence on the determined direction of the gray scale level change from the preceding sub-field and by an amount corresponding to a predetermined factor of said determined amount of gray scale level change.