Abstract: A system for compensating for disturbance of a motor for motor driven power steering is provided. The system for compensating for disturbance of a motor for motor driven power steering compensates for the disturbance based on a closed loop based input value prediction model unit, separately predicts an input value from a command by a closed loop based input value prediction model unit, and compensates for disturbance in accordance with a desired disturbance frequency band when there is a difference between the predicted input value and an input value error-compensated by a feedback controller.

Abstract: A display driving device includes a timing controller, a power management integrated circuit, and a column driver. The timing controller generates image data including a plurality of pixel data, and generates a power saving signal based on magnitudes of the plurality of pixel data included in the image data. The power management integrated circuit generates a drive voltage having a voltage level that is varied based on the power saving signal. The column driver receives the image data generated by the timing controller, and generates a plurality of output voltages corresponding to the plurality of pixel data included in the image data based on the drive voltage.

Abstract: A display driver circuit includes a comparator that is configured to compare first pixel data of a plurality of pixel data with second pixel data of the plurality of pixel data, the plurality of pixel data respectively corresponding to a plurality of pixels connected to a data line, a pre-emphasis controller configured to calculate an offset based on a compare result of the comparator and gamma segment points, which are adjacent to the second pixel data, from among a plurality of gamma segment points used as a reference for dividing the plurality of pixel data, a calculator configured to calculate pre-emphasis pixel data based on the second pixel data and the offset, and an output circuit configured to transmit a pre-emphasis gray scale voltage corresponding to the pre-emphasis pixel data and a target gray scale voltage corresponding to the second pixel data to a display panel through the data line.

Abstract: A power semiconductor device includes a semiconductor substrate, trench structures comprising a first, a second, a third and a fourth trench structure formed in the substrate, a second conductivity type body region formed between the trench structures, a first conductivity type source region formed in the second conductivity type body region, and an emitter electrode and a gate pad formed over the substrate, wherein each trench structure includes a top electrode and a bottom electrode, and each top electrode is insulated from the corresponding bottom electrode, and wherein the first trench structure is symmetric to the fourth trench structure, and the second trench structure is symmetric to the third trench structure, and wherein the first trench structure is not identical to the second trench structure, and wherein no first conductivity type source region is formed to be adjacent to the second trench structure and the third trench structure.

Abstract: A pit switch module of elevator landing door for switching a mode of elevator between an inspection mode and a normal mode comprises a pit switch arranged that ON/OFF operation is configured to be done by an operator at a landing at the state when the elevator landing door has been closed such that the mode of elevator is switched before the operator enters a hoistway or after the operator leaves the hoistway.

Abstract: A source driver circuit is provided which includes a plurality of digital multi-spread (hereinafter referred to as “DMS”) blocks configured to generate DMS signals for controlling an output timing of a data signal to be transmitted to a display panel from a plurality of clocks which are delayed as much as a reference period one another. Each DMS block includes a plurality of sub blocks. Each of the sub blocks includes an enable signal generator and a delay unit. The enable signal generator generates an enable signal for outputting target DMS signals of the DMS signals using clocks selected from the plurality of clocks. The delay unit delays the DMS signals such that the DMS signals are sequentially delayed by the reference period.

Abstract: A non-pneumatic tire is disclosed herein. The non-pneumatic tire includes a cylindrical tread configured to come into contact with a road surface, an aluminum wheel configured to form a circumference smaller than that of the tread and concentrically disposed inside the tread, and a polyurethane spoke configured to perform a shock absorbing action while connecting the tread with the aluminum wheel. The aluminum wheel includes a plurality of depressed grooves formed at predetermined intervals along the circumferential surface of the aluminum wheel. A plurality of vibration isolators made of vibration isolation material is inserted into the grooves.

Abstract: A display driving device includes a timing controller, a power management integrated circuit, and a column driver. The timing controller generates image data including a plurality of pixel data, and generates a power saving signal based on magnitudes of the plurality of pixel data included in the image data. The power management integrated circuit generates a drive voltage having a voltage level that is varied based on the power saving signal. The column driver receives the image data generated by the timing controller, and generates a plurality of output voltages corresponding to the plurality of pixel data included in the image data based on the drive voltage.

Abstract: An apparatus for correcting a golf address to be adhered to the body of a user, including: an input module in which the user pushes an input button to set a target azimuth while looking at a target point in a user setting mode; an azimuth calculation module comprising an accelerometer for measuring gravity direction, a gyroscope for measuring the x-axis, y-axis and z-axis directions of a golf club face, and a calculation processor for calculating the address azimuth of the user with respect to the target azimuth set in the input module by using the values measured at the accelerometer and the gyroscope when the user is in an address posture in a user execution mode; and an output module for outputting the address azimuth calculated at the azimuth calculation module.

Abstract: A system for compensating for disturbance of a motor for motor driven power steering is provided. The system for compensating for disturbance of a motor for motor driven power steering compensates for the disturbance based on a closed loop based input value prediction model unit, separately predicts an input value from a command by a closed loop based input value prediction model unit, and compensates for disturbance in accordance with a desired disturbance frequency band when there is a difference between the predicted input value and an input value error-compensated by a feedback controller.

Abstract: A motor control system is provided for compensating disturbance. The system includes a controller that supplies an input voltage to a motor based on the difference between a current command value to a motor and an actual current of the motor. A motor modeling part outputs a motor output current based on an input voltage from the controller and a disturbance observation part is formed as a reverse model of the motor modeling part to remove current noise using a current differentiation filtering method. Additionally, a disturbance compensation amount determination part determines a disturbance compensation amount based on the disturbance estimated by the disturbance observation part.

Abstract: A power-on reset circuit includes a voltage detector unit to output an electrical signal in response to a power supply voltage received from a power supply terminal, an inverter to output a reset signal according to a level of the electrical signal from the voltage detector unit, a first switch unit to be turned on or off in response to the reset signal from the inverter; a first discharge unit to discharge the electrical signal in response to the power supply voltage from the first switch unit, a second switch unit to be turned on according to a start pulse signal from an external device and to receive the power supply voltage from the power supply terminal, and a second discharge unit to discharge the electrical signal in response to the power supply voltage from the second switch.

Abstract: A power semiconductor device includes a semiconductor substrate, trench structures comprising a first, a second, a third and a fourth trench structure formed in the substrate, a second conductivity type body region formed between the trench structures, a first conductivity type source region formed in the second conductivity type body region, and an emitter electrode and a gate pad formed over the substrate, wherein each trench structure includes a top electrode and a bottom electrode, and each top electrode is insulated from the corresponding bottom electrode, and wherein the first trench structure is symmetric to the fourth trench structure, and the second trench structure is symmetric to the third trench structure, and wherein the first trench structure is not identical to the second trench structure, and wherein no first conductivity type source region is formed to be adjacent to the second trench structure and the third trench structure.

Abstract: A digital-to-analog converter includes an amplifier including at least two input terminals corresponding to a non-inverting input terminal; and a chopping unit performing a chopping operation between voltages provided to the at least two input terminals corresponding to the non-inverting input terminal. The digital-to-analog converter has an X+Y bit structure and removes an offset by performing an interpolation chopping operation and/or a main buffer chopping operation at the same time. The digital-to-analog structure can be embodied in a small area and can process high bit image data.

Abstract: A source driver circuit is provided which includes a plurality of digital multi-spread (hereinafter referred to as “DMS”) blocks configured to generate DMS signals for controlling an output timing of a data signal to be transmitted to a display panel from a plurality of clocks which are delayed as much as a reference period one another. Each DMS block includes a plurality of sub blocks. Each of the sub blocks includes an enable signal generator and a delay unit. The enable signal generator generates an enable signal for outputting target DMS signals of the DMS signals using clocks selected from the plurality of clocks. The delay unit delays the DMS signals such that the DMS signals are sequentially delayed by the reference period.

Abstract: The semiconductor device comprises a controller; an X-axis driver; a Y-axis driver; and an output controller receiving the X-axis and Y-axis output signals and generating driving signals.

Abstract: A non-pneumatic tire is disclosed herein. The non-pneumatic tire includes a cylindrical tread configured to come into contact with a road surface, an aluminum wheel configured to form a circumference smaller than that of the tread and concentrically disposed inside the tread, and a polyurethane spoke configured to perform a shock absorbing action while connecting the tread with the aluminum wheel. The aluminum wheel includes a plurality of depressed grooves formed at predetermined intervals along the circumferential surface of the aluminum wheel. A plurality of vibration isolators made of vibration isolation material is inserted into the grooves.

Abstract: A gamma voltage generating circuit includes a gamma voltage distribution unit configured to divide a reference voltage to generate a plurality of initial gamma reference voltages, and a gamma voltage selection unit configured to generate gamma reference voltages by selecting first gamma reference voltages, corresponding to a first color pixel, from among the plurality of initial gamma reference voltages and second gamma reference voltages, corresponding to a second color pixel, from among the plurality of initial gamma reference voltages. Herein, an output part of initial gamma reference voltages selected in common as the first and second gamma reference voltages is shared with input parts of the first and second gamma reference voltages.

Abstract: A data signal receiver includes a clock signal filter, a falling pulse signal generator, a mixing block, and a sampler. The clock signal filter generates a first filtered clock signal and a second filtered clock signal by filtering a clock signal. The falling pulse signal generator generates a falling pulse signal based on the first filtered clock signal. The mixing block generates a mixed data signal by mixing a data signal and the falling pulse signal. The sampler generates a recovered data signal by sampling the mixed data signal in response to the second filtered clock signal.

Abstract: An apparatus for correcting a golf address to be adhered to the body of a user, including: an input module in which the user pushes an input button to set a target azimuth while looking at a target point in a user setting mode; an azimuth calculation module comprising an accelerometer for measuring gravity direction, a gyroscope for measuring the x-axis, y-axis and z-axis directions of a golf club face, and a calculation processor for calculating the address azimuth of the user with respect to the target azimuth set in the input module by using the values measured at the accelerometer and the gyroscope when the user is in an address posture in a user execution mode; and an output module for outputting the address azimuth calculated at the azimuth calculation module.