Patents by Inventor Seung-Woo Han

Seung-Woo Han has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9954376
    Abstract: A wireless power transmission controlling apparatus and method are provided. The apparatus includes a communication unit; and a controller configured to compute an amount of transmission power to be transmitted, based on information received from a wireless power receiving apparatus; output a wireless power transmission control signal corresponding to the computed amount of transmission power; filter the wireless power transmission control signal and pass a harmonic wave corresponding to a predetermined communication frequency band; and control the communication unit to transmit the wireless power transmission control signal based on the harmonic wave.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: April 24, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Ram Lee, Joon-Il Kim, Sung-Bum Park, Young-Min Lee, Hong-Kweun Kim, Se-Ho Park, Seung-Woo Han
  • Patent number: 9899865
    Abstract: An apparatus and a method for protecting a wireless power receiver from excessive temperature caused by charging are provided. The apparatus includes a power receiver configured to receive wireless power in an alternate current (AC) form from a wireless power transmitter; a temperature measurement unit configured to measure a temperature of a point in the wireless power receiver during reception of the wireless power; and a controller configured to decrease a charging power corresponding to the wireless power, if a temperature measured by the temperature measurement unit exceeds a preset temperature, and to provide the charging power to a battery, if the temperature measured by the temperature measurement unit is lower than the preset temperature.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: February 20, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Woo-Ram Lee, Yu-Su Kim, Se-Ho Park, Seung-Woo Han
  • Patent number: 9886120
    Abstract: There is provided a gate driving circuit and driving method thereof, and display apparatus. The method comprises: performing gate drive scanning on shift register units located in a first region in the gate driving circuit; performing touch scanning after the gate drive scanning of the shift register units in the first region is completed; scanning again a last stage of shift register unit located in the first region before the touch scanning is completed, so that the last stage of shift register unit located in the first region pre-charges a first stage of shift register unit located in a second region; and performing gate drive scanning on shift register units located in the second region in the gate driving circuit, the last stage of shift register unit located in the first region connected in cascades with the first stage of shift register unit located in the second region.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: February 6, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yuanbo Zhang, Jiayang Zhao, Seung Woo Han, Xiangxiang Zou
  • Publication number: 20180002587
    Abstract: In a first aspect of the present disclosure, there is provided a thermally-conductive composition comprising: a functional agent comprising at least one of boron nitride (BN), silicon carbide (SiC), aluminum oxide (Al2O3), and aluminum nitride (AlN), and foamed inorganic thermally-conductive powders; and a binder comprising a silicate glass solution and isopropyl alcohol. The thermally-conductive composition may have improved endothermic, exothermic, and heat dissipation properties at high temperatures above about 1000° C. Further, the device using the thermally-conductive composition may have improved heat conductance and heat dissipation. Furthermore, the thermally-conductive composition may have reduced harmfulness to the human body.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Inventors: Seung Woo HAN, Sook Hyun YOON, Jin Soon BYUN
  • Publication number: 20180006486
    Abstract: A method of controlling a wireless power receiver. The method includes receiving, by a power receiver, power from a wireless power transmitter; receiving, from the wireless power transmitter, a time set value that is set for checking cross connection; in response to receiving the time set value, generating a power variation in the wireless power receiver by converting a load status from a first load status to a second load status; and maintaining the second load status for a time corresponding to the received time set value.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 4, 2018
    Inventors: Kyung-Woo Lee, Kang-Ho Byun, Chong-Min Lee, Hee-Won Jung, Min-Cheol Ha, Seung-Woo HAN
  • Patent number: 9842552
    Abstract: A data driving circuit comprises a plurality of driving units, each of the driving units comprising first, second, third and fourth switch units, each of the switch units comprising first and second input terminals and an output terminal; the output terminals being output terminals of the data driving circuit; two data control terminals, one of which is respectively connected to the first input terminals of the first switch unit and the second switch unit, the other of which is respectively connected to the first input terminals of the third switch unit and the fourth switch unit; a first switching control terminal, connected to the second input terminal of one of the switch units connected to the same data control terminal; a second switching control terminal, connected to the second input terminal of the other of the switch units connected to the same data control terminal.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 12, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Seung Woo Han, Yuanbo Zhang, Yoon Sung Um
  • Publication number: 20170345516
    Abstract: A shift register unit and a control method thereof, a gate drive device including the shift register unit, and a display device. The shift register unit includes: an input module, a pull-up module, a first pull-down control signal generation module, controlling, in the period that a first signal is high level, potential of a first pull-down control node according to a drive input signal and potential of a pull-up control node; a second pull-down control signal generation module, controlling, in the period that a second signal is high level, potential of a second pull-down control node according to the drive input signal and the potential of the pull-up control node, the first signal and the second signal alternatively becoming high level; and a pull-down module, pulling down a drive output signal according to the potential of the first pull-down control node and the potential of the second pull-down control node.
    Type: Application
    Filed: September 28, 2016
    Publication date: November 30, 2017
    Inventors: Hyun Sic CHOI, Seung Woo HAN
  • Patent number: 9806554
    Abstract: A method for generating a load variation for detecting a wireless power receiving unit in wireless charging is provided. The method includes maintaining a switch connected to a dummy load in an ON state by the wireless power receiving unit, receiving wireless power from a wireless power transmitting unit, and, upon receiving the wireless power, switching the switch connected to the dummy load to an OFF state.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: October 31, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kyung-Woo Lee, Kang-Ho Byun, Chong-Min Lee, Hee-Won Jung, Min-Cheol Ha, Seung-Woo Han
  • Publication number: 20170213497
    Abstract: The present disclosure discloses a GOA unit driving circuit and a driving method thereof, a display panel and a display device. The disclosure relates to field of display technology, and solves the technical issue of increased power consumption of the display device due to the power consumption of the parasitic capacitance existing in the transistors in the GOA unit. The GOA unit driving circuit comprises a plurality of sets of GOA units, each of which includes at least one GOA unit; a plurality of clock selecting units, which are in one-to-one correspondence with the plurality of sets of GOA units, and each clock selecting unit is connected to a corresponding set of GOA units and connected to one of a plurality of clock signal terminals and at least one of a plurality of clock selection signal terminals, respectively.
    Type: Application
    Filed: December 14, 2015
    Publication date: July 27, 2017
    Inventors: Guangliang Shang, Seung Woo Han, Mingfu Han, Haoliang Zheng, Yanfeng Wang
  • Patent number: 9703413
    Abstract: Provided are a driving unit for a touch electrode, a driving circuit, a touch panel and a driving method, wherein the driving unit comprises: a signal conversion unit configured to convert a signal input from the signal input terminal under the control of a clock signal and output the conversion result; a logic computation unit configured to perform a logic computation on the input signal and the touch enable signal and output the computation result; a buffer unit connected to an output terminal of the logic computation unit; and an output unit connected to an output terminal of the buffer unit and configured to output a touch scan signal to the touch driving electrode under the control of a signal output by the buffer unit. The driving circuit comprising multiple stages of driving unit described in the above can be directly integrated in the array substrate.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: July 11, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yuanbo Zhang, Seung Woo Han, Yun Sik Im
  • Patent number: 9679512
    Abstract: A shift register and driving method thereof, gate driving circuit, and display apparatus are provided. The shift register comprises: first input module configured to pull up potential of first node under the effect of signal received by input terminal; output module configured to pull up potential of output terminal under the effect of the potential of the first node; reset module configured to pull down the potential of the first node under the effect of signal received by reset terminal; and output pulling-down module configured to pull down the potential of the output terminal under the effect of first clock signal, wherein the above identified modules are connected to the first node; and second input module configured to connect the input terminal to the first node within operation time of the first input module and the output pulling-down module under the effect of the first clock signal.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: June 13, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yuanbo Zhang, Seung Woo Han, Yun Sik Im
  • Publication number: 20170120236
    Abstract: A fluidic sample test apparatus has a mounting part such that the temperature of a fluidic sample, which is inserted into the mounting part, is uniformly maintained. The fluidic sample test apparatus includes a main body having a mounting part into which a sample cartridge is inserted, a metal panel disposed on one surface of the mounting part, and a printed circuit board (PCB) disposed on another surface of the mounting part facing the one surface. One side of the metal panel is in contact with the PCB.
    Type: Application
    Filed: August 17, 2016
    Publication date: May 4, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Young KIM, Seung Woo HAN, Hyun-Suk KANG
  • Publication number: 20170046998
    Abstract: A shift register and a driving method thereof, a gate driving circuit, and a display apparatus are provided.
    Type: Application
    Filed: July 28, 2015
    Publication date: February 16, 2017
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Yuanbo Zhang, Seung Woo Han, Yun Sik Im
  • Patent number: 9544981
    Abstract: The embodiments of the present disclosure disclose a touch display panel and a touch display apparatus and relate to the technical field of display, which can realize the function of preventing the static damage without affecting the touch control function. The touch display panel in the present disclosure is arranged with driving electrodes and sensing electrodes, and is further arranged with an anti-static layer which is correspondingly distributed in regions of the touch display panel other than sensing regions including overlapped regions of the driving electrodes and the sensing electrodes; and a controllable switch through which the anti-static layer is grounded.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: January 10, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuanbo Zhang, Seung Woo Han, Wei Qin, Ruoyu Ma
  • Patent number: 9524686
    Abstract: The present disclosure provides a shift register unit, a gate electrode drive circuit and a display apparatus, which relates to a technical field of display. The shift register unit includes an input reset module, a pull up module, a control module and a pull down module. By inputting a high level into the second signal input end of the input reset module in the touch scan to maintain the level at the pull up control node, the electrical leak effects at the pull up control node may be avoided efficiently. In this way, the defects of insufficient charging rate of the row pixels may be avoided and the dark lines or bad bright lines may be suppressed.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: December 20, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yuanbo Zhang, Jiayang Zhao, Seung Woo Han, Xing Yao, Haifeng Jin
  • Publication number: 20160365748
    Abstract: An apparatus and a method for protecting a wireless power receiver from excessive temperature caused by charging are provided. The apparatus includes a power receiver configured to receive wireless power in an alternate current (AC) form from a wireless power transmitter; a temperature measurement unit configured to measure a temperature of a point in the wireless power receiver during reception of the wireless power; and a controller configured to decrease a charging power corresponding to the wireless power, if a temperature measured by the temperature measurement unit exceeds a preset temperature, and to provide the charging power to a battery, if the temperature measured by the temperature measurement unit is lower than the preset temperature.
    Type: Application
    Filed: August 29, 2016
    Publication date: December 15, 2016
    Inventors: Woo-Ram LEE, Yu-Su KIM, Se-Ho PARK, Seung-Woo HAN
  • Publication number: 20160351109
    Abstract: An inverter and a method for driving the inverter, a gate driver on array (GOA) unit, a GOA circuit and a display device relate to a technical field of display, and are proposed to supply stable inverter output signal. The inverter comprises a control module and an output module. The control module is configured to control a voltage at a control node under the control of a first clock signal at a first clock signal terminal, a second clock signal at a second clock signal terminal, an input signal at an input terminal and voltages at a first level terminal and a second level terminal. The output module is configured to set a voltage at the output terminal to the voltage at the first level terminal or the voltage at the second level terminal under the control of the control node and the input signal at the input terminal.
    Type: Application
    Filed: May 25, 2016
    Publication date: December 1, 2016
    Inventors: Seung Woo Han, Yuanbo Zhang
  • Patent number: 9502172
    Abstract: A wireless power transmitter, which detects a load change in a wireless power transmission, includes a power supply unit, a power converter which converts the driving power supplied from the power supply unit into Alternating Current, a power transmitter which wirelessly transmits the converted driving power to the wireless power transmitter, a temperature measurement unit which measures a temperature of the wireless power transmitter; and a controller which detects a current and load value of the driving power output from the power supply unit, compensates for the load value based on the measured temperature value, and determines a load change of the power transmitter based on the compensated load value.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: November 22, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kang-Ho Byun, Hong-Kweun Kim, Seung-Woo Han
  • Patent number: 9496731
    Abstract: Disclosed are an apparatus and a method for charging power using a resonant coupling. The apparatus includes a transmission power converter for converting Direct Current (DC) power to Alternating Current (AC) power, a controller for adjusting a Q factor of a transmission resonator by using a frequency of the converted AC power and a resonant frequency of the transmission resonator and controlling adaptive impedance matching, and a transmission resonator for wirelessly transmitting the converted AC power to a receiver through the adjusted Q factor and the controlled adaptive impedance matching, the transmission resonator having a coil installed in the transmitter.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: November 15, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sung-Kweon Park, Kil-Soo Ko, Ki-Hyun Kim, Se-Ho Park, Jin-Hyoung Park, Sea-Young Lee, Young-Min Lee, Hee-Won Jung, Hong-Kweun Kim, Seung-Woo Han
  • Patent number: 9478310
    Abstract: Provided is a shift register unit, a gate driving circuit and method, and a display apparatus. The shift register unit comprises an input module, a pulling-up module, a first control module, a second control module, a first reset module and a pulling-down module. It can be avoided that a relative large drift occurs in a threshold voltage of a pulling-down TFT (T8) by controlling a voltage at the pulling-down control node (PD) of the shift register unit, thus effectively increasing reliability of the shift register unit in operation.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: October 25, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Seung Woo Han, Yuanbo Zhang