Abstract: A capacitor is connected between the direct current voltage terminals. Switched terminals of a first switch and a second switch are coupled in series, between the direct current voltage terminals. An electric machine or generator has one or more windings and a first phase output terminal associated with the switched terminals. A first set of blocking diodes are cascaded in series and second set of blocking diodes are cascaded in series. A first voltage supply provides a first output voltage level and a second output level switchable to the first control terminal, where the first output level is distinct from the second output level. A second voltage supply provides the first output voltage level and the second output level switchable to the second control terminal.

Abstract: A display panel includes a pixel array, a gate driving circuit, and a data driving circuit. The pixel array includes a plurality of pixel blocks, a plurality of gate lines and a plurality of data lines. The gate driving circuit is electrically coupled to the gate lines for driving sub-pixels of the pixel array. The data driving circuit is electrically coupled to the data lines for providing data signals to the sub-pixels of the pixel array. The sub-pixels of each pixel block include a plurality of first sub-pixels and a plurality of second sub-pixels. For each pixel block, the first sub-pixels and the second sub-pixels have same quantity. For displaying a specified gray-scale value, a luminance value in each first sub-pixel is greater than a luminance value in each second sub-pixel. The data driving circuit changes a polarity of each sub-pixel of the pixel array by using a polarization sequence.

Abstract: A motor has a rotor that rotates in response to one or more alternating current input signals. A position sensor is adapted to generate a substantially saw-tooth waveform indicative of a position of the rotor. A primary processing module or data processor is capable of providing position data and speed data for the rotor based on the substantially saw-tooth waveform. A notch filter can reject one or more selected frequency components in the substantially saw-tooth waveform to reduce distortion off the substantially saw-tooth waveform that would otherwise tend to cause inaccuracy in the provided position data and speed data.

Abstract: Techniques are disclosed relating to floating-point operations with down-conversion. In some embodiments, a floating-point unit is configured to perform fused multiply-addition operations based on first and second different instruction types. In some embodiments, the first instruction type specifies result in the first floating-point format and the second instruction type specifies fused multiply addition of input operands in the first floating-point format to generate a result in a second, lower-precision floating-point format. For example, the first format may be a 32-bit format and the second format may be a 16-bit format. In some embodiments, the floating-point unit includes rounding circuitry, exponent circuitry, and/or increment circuitry configured to generate signals for the second instruction type in the same pipeline stage as for the first instruction type. In some embodiments, disclosed techniques may reduce the number of pipeline stages included in the floating-point circuitry.

Abstract: A housing includes two base each having at least one sidewall, a gap defined between the two bases and a non-conductive member positioned in the gap, the sidewall has a plurality of grooves, the non-conductive member is filled into the grooves to enhance bonding strength between the non-conductive member and the two bases. An electronic device having the housing and a method of making the housing are also provided.

Abstract: A display device includes a plurality of data lines, a plurality of scan lines, and a pixel array. The pixel array is electrically coupled to the data lines and the scan lines. Colors of the sub pixels electrically coupled to the same scan line are the same. The pixel array includes a plurality of first color sub-pixel rows, a plurality of second color sub-pixel rows, and a plurality of third color sub-pixel rows. The third color sub-pixels corresponding to the same data line include a first sub-pixel and a second sub-pixel. The first sub-pixel and the second sub-pixel have different polarities. The sub-pixels configured between the first sub-pixel and the second sub-pixel have the same polarity.

Abstract: At least one example embodiment discloses a method of controlling an alternating current (ac) machine. The method includes determining or retrieving a current limit for the ac machine, determining a characterized peak current value based on a voltage-to-speed ratio of the ac machine, determining current command values for the ac machine based on at least one of the torque command limit and a torque command for the ac machine, determining current command values for the ac machine based on the torque command limit and controlling the ac machine based on the current command values.

Abstract: A temperature estimation module estimates each junction temperature of a corresponding semiconductor device, among a plurality of semiconductor devices, for each phase of an inverter. The temperature estimation module or the data processing system determines a hottest device with a highest junction temperature among the semiconductor devices. A thermal adjustment module or data processing system determines if the highest junction temperature parameter is less than maximum junction temperature parameter for the respective semiconductor device or deciding whether or not to adjust a duty cycle of the semiconductor devices.

Abstract: A method and apparatus of reusing reference data for video decoding are disclosed. Motion information associated with motion vectors for coded blocks processed after the current block are derived without storing decoded residuals associated with the coded blocks. Reuse information regarding reference data required for Inter prediction or Intra block copy of the coded blocks is determined based on the motion information. If the current block is coded in the Inter prediction mode or the Intra block copy mode, whether required reference data for the current block are in an internal memory is determined and the reference data are fetched from an external memory to the internal memory if the required reference data are not stored in the internal memory. The reference data in the internal memory is managed according to the reuse information to reduce data transferring between the external memory and the internal memory.

Abstract: A heat pipe with fiber wick structure includes a tubular body that is divided into an evaporator section, an adiabatic section and a condenser section, a mesh wick structure bonded to the inner wall of the tubular body to occupy the overall area of the evaporator section, a flat elongated fiber wick structure partially surrounded by the mesh wick structure in the tubular body and extending along the longitudinal axis of the tubular body to occupy a part of the inside space of the tubular body, and a working fluid filled in the tubular body. The fiber wick structure has one or multiple contact surfaces partially disposed in contact with and sintered to the mesh wick structure and partially disposed outside the mesh wick structure and disposed in contact with and sintered to the inner wall of the tubular body.

Abstract: At least one example embodiment discloses a method of estimating a position of a rotor in a motor. The method includes obtaining a current regulation quality index based on a current command and a measured current, determining an estimated position of the rotor based on the current regulation quality index and position estimation data and controlling the motor based on the estimated position of the rotor.

Abstract: A display panel includes a driver, X data lines, Y scan lines, and X*Y pixels. The driver is configured to receive display data with X*Y resolution. The X data lines are electrically connected to the driver and configured to receive a plurality of pixel voltages. The X*Y pixels are electrically connected to the data lines and the scan lines. When each gray level of a first color display data set is identical and lower than a first threshold value, the pixel voltages of the plurality of first color subpixels are not identical.

Abstract: A current measurement module is adapted to measure an observed current level for the inverter. A data processor or mode controller accesses a stored representation of first current level versus rotor speed output at which a total harmonic distortion level is less than threshold total harmonic distortion level. The data processor or mode controller enables the inverter to use SVPWM (space vector pulse width modulation) if the observed current level is less than the first current level for the measured or determined rotor speed. Further, the data processor or mode controller enables the inverter to use DPWM (discontinuous pulse width modulation) if the observed current level is greater than or equal to the first current level for the measured or determined rotor speed.

Abstract: A touchpad includes a controller connected to a touch sensor. The controller detects the fingers touching on the touch sensor to determine to start up and terminate a scroll bar control function. In the scroll bar control function, the movement of the finger or fingers touching on the touch sensor is detected for scrolling on a window, and the vertical distance and the horizontal distance of the movement are evaluated for determining the scrolling amount of a vertical scroll bar or a horizontal scroll bar of the window.

Abstract: At least one example embodiment discloses a method of estimating a position of a rotor in a motor. The method includes obtaining a current regulation quality index based on a current command and a measured current, determining an estimated position of the rotor based on the current regulation quality index and position estimation data and controlling the motor based on the estimated position of the rotor.

Abstract: A current measurement module is adapted to measure an observed current level for the inverter. A data processor or mode controller accesses a stored representation of first current level versus rotor speed output at which a total harmonic distortion level is less than threshold total harmonic distortion level. The data processor or mode controller enables the inverter to use SVPWM (space vector pulse width modulation) if the observed current level is less than the first current level for the measured or determined rotor speed. Further, the data processor or mode controller enables the inverter to use DPWM (discontinuous pulse width modulation) if the observed current level is greater than or equal to the first current level for the measured or determined rotor speed.

Abstract: A solar cell includes a semiconductor wafer, plural finger electrodes, at least one bus electrode, and at least one finger loop electrode. The semiconductor wafer has a light-receiving surface. The finger electrodes are arranged along a first direction and disposed on the light-receiving surface. The bus electrode is arranged along a second direction and disposed on the light-receiving surface, and the bus electrode is connected with the finger electrodes, in which the second direction is perpendicular to the first direction. The finger loop electrode is substantially arranged along the second direction and disposed on the light-receiving surface, and the finger loop electrode is connected to at least two of the finger electrodes, in which the finger loop electrode has a shape of non-square periodic wave.