Patents by Inventor Jae-Won Choi

Jae-Won Choi 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: 10655269
    Abstract: Disclosed is a washing machine including a main body, a main washing unit provided inside the main body, and a door unit for opening and closing a main entrance formed in the main body to approach the main washing unit. The door unit includes a main door and an auxiliary door. The main door includes an auxiliary washing unit, an auxiliary entrance for inputting laundry into the auxiliary washing unit, and an opening through which the contents of the auxiliary washing unit are discharged. The auxiliary door is rotatably coupled to the main door to open and close the auxiliary entrance. When the auxiliary door is opened, the auxiliary door closes the opening to form an auxiliary washing space in which water is able to be contained. When the auxiliary door is closed after the hand-washing, the opening is opened to discharge the laundry and the washing water in the auxiliary laundry space to the main washing unit naturally.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: May 19, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Hyuk Uim, Jae Won Choi
  • Patent number: 10651263
    Abstract: A display device includes: a first substrate; a display area with a plurality of pixels on the first substrate; a pad portion adjacent to a first side of the display area and including a plurality of connecting pads positioned on the first substrate; a first common power wire positioned between the display area and the pad portion and connected to a first connecting pad as at least one of the plurality of connecting pads to receive a power voltage; a second common power wire positioned adjacent to a second side of the display area facing the first side; an encapsulation layer positioned on the display area to protect the plurality of pixels; and a first path wire including one end connected to a second connecting pad of the plurality of connecting pads and the other end connected to the second common power wire and positioned on the encapsulation layer.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Han Bae, Jung Ho Park, Jeong Kug Lee, Jae Won Choi
  • Publication number: 20200075363
    Abstract: A semiconductor package molding device is provided. The semiconductor package molding device includes a chamber lower part which comprises a lower mold configured to receive a molding target, a chamber upper part configured to engage with the chamber lower part to isolate the inside of a chamber from the outside of the chamber, the chamber upper part including an upper mold configured to form a cavity with the lower mold, a first vent hole located between the chamber upper part and the chamber lower part, the first vent hole configured to discharge gas from the inside of the cavity after the chamber upper part and the chamber lower part engage with each other, a pot which is formed in the lower mold in the chamber lower part, a plunger configured to push up a molding material in the pot, a second vent hole which is formed in a side surface of the pot in the chamber lower part and a cavity vacuum pump configured to discharge gas through the first vent hole and the second vent hole.
    Type: Application
    Filed: May 2, 2019
    Publication date: March 5, 2020
    Inventors: Hee Ju SEO, Jae Won CHOI, Sung Bok HONG, Young Jin HWANG
  • Publication number: 20200075636
    Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Inventors: Vasudha Gupta, Jae Won Choi, Shih Chang Chang, Tsung-Ting Tsai, Young Bae Park
  • Publication number: 20200076430
    Abstract: A power source multiplexer includes a first switch circuit connected between a first input voltage source node and an output voltage node. A second switch circuit is connected between a second input voltage source node and the output voltage node. A driver circuit is configured to provide a steady-state current to drive one of the first or second switch circuits to electrically connect the respective input voltage source node to the output voltage node. A boost circuit is configured to boost the steady-state current for a switching time interval when switching from one of the input voltage source nodes being connected to the output node to the other of the input voltage source nodes being connected to the output voltage node.
    Type: Application
    Filed: February 19, 2019
    Publication date: March 5, 2020
    Inventors: RICHARD TURKSON, SUNGHO BECK, JAE WON CHOI, JOHNNY KLARENBEEK
  • Publication number: 20200052683
    Abstract: Channel switchover power multiplexer circuits, and methods of operating the same are disclosed. An example power multiplexer a first transistor coupled to a first input, a second transistor coupled to the first transistor to couple a first voltage at the first input to an output, a third transistor coupled to a second input, a fourth transistor coupled to the third transistor to couple a second voltage at the second input to the output, a diode amplifier to provide a third voltage to a gate of the first transistor to block a reverse current, and a soft-start amplifier to provide a fourth voltage to a gate of the fourth transistor to turn on (with adjustable VOUT ramp rate) the fourth transistor with a constant ramp rate.
    Type: Application
    Filed: August 19, 2019
    Publication date: February 13, 2020
    Inventors: Jae Won Choi, Sungho Beck, Richard Turkson, Johnny Klarenbeek, Bixia Li
  • Patent number: 10547315
    Abstract: A frequency divider may include: a core circuit including a first flip-flop loop and a second flip-flop loop, wherein each of the first flip-flop loop and the second flip-flop loop divides a frequency of a clock signal received via a control terminal of a flip-flop, wherein the core circuit is configured to: output a frequency-divided signal, based on a first signal output by the first flip-flop loop and a second signal output by the second flip-flop loop, the first and second signals having same frequency-division ratios and different phases, and feed back the frequency-divided signal via an input terminal of each of the first and second flip-flop loops; a duty correction circuit that receives the frequency-divided signal and outputs a differential output signal that is generated by correcting a duty ratio of the frequency-divided signal; and an output circuit that outputs a first output signal, which is a signal amplified from the differential output signal, and a second output signal that is a quadrature s
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-won Choi, Nam-seog Kim
  • Publication number: 20190393295
    Abstract: An organic light-emitting diode display may have rounded corners. A negative power supply path may be used to distribute a negative voltage to a cathode layer, while a positive power supply path may be used to distribute a positive power supply voltage to each pixel in the display. The positive power supply path may have a cutout that is occupied by the negative power supply path to decrease resistance of the negative power supply path in a rounded corner of the display. To mitigate reflections caused by the positive power supply path being formed over tightly spaced data lines, the positive power supply path may be omitted in a rounded corner of the display, a shielding layer may be formed over the positive power supply path in the rounded corner, or non-linear gate lines may be formed over the positive power supply path.
    Type: Application
    Filed: April 4, 2019
    Publication date: December 26, 2019
    Inventors: Tiffany T. Moy, Yuchi Che, Seonpil Jang, Warren S. Rieutort-Louis, Bhadrinarayana Lalgudi Visweswaran, Jae Won Choi, Abbas Jamshidi Roudbari, Myung-Kwan Ryu, Hirokazu Yamagata, Keisuke Otsu
  • Publication number: 20190372558
    Abstract: Apparatus, devices, and systems to provide a low quiescent current load switch are disclosed. A disclosed load switch circuit includes a transconductor to convert a voltage to a current input to a transistor gate, the current input to the transistor gate to control the gate to deliver power to a load from a power supply. The example circuit includes a resistor to provide power from a charge pump to the gate as controlled by the transconductor. A disclosed apparatus includes a driver to control a gate of a transistor, the gate to enable the transistor to deliver power to a load from a power supply when the gate is activated, and a gate slope control to control a rate of change over time of a voltage associated with the gate to activate the gate and to disable the driver when the gate is activated.
    Type: Application
    Filed: August 16, 2019
    Publication date: December 5, 2019
    Inventors: Jae Won Choi, Sungho Beck, Abidur Rahman
  • Publication number: 20190360803
    Abstract: A flexible display capable of improving an angle-measuring accuracy using different kinds of sensors and a method of measuring an angle thereof. The flexible display includes a first sensor unit disposed in a first region and including different kinds of sensors, a second sensor unit disposed in a second region adjacent to the first region and including different kinds of sensors, and an angle-measuring unit measuring a folding angle between the first region and the second region in response to sensing signals outputted from the first sensor unit and the second sensor unit.
    Type: Application
    Filed: August 7, 2019
    Publication date: November 28, 2019
    Inventors: Jae-Won CHOI, Chan-Sung JUNG
  • Publication number: 20190319615
    Abstract: A system includes a storage capacitor coupled between an input voltage source and a ground terminal, a voltage sensing circuit coupled to the input voltage source and to the storage capacitor, a first transistor coupled to the voltage sensing circuit, a current mirror circuit coupled to the first transistor, a diode coupled between the storage capacitor and the current mirror circuit, and a second transistor configured to couple between a gate of a power switching device and the ground terminal. A gate of the second transistor is coupled to the storage capacitor by way of the voltage sensing circuit.
    Type: Application
    Filed: August 31, 2018
    Publication date: October 17, 2019
    Inventors: Jae Won CHOI, Richard TURKSON
  • Patent number: 10432185
    Abstract: A system includes a storage capacitor coupled between an input voltage source and a ground terminal, a voltage sensing circuit coupled to the input voltage source and to the storage capacitor, a first transistor coupled to the voltage sensing circuit, a current mirror circuit coupled to the first transistor, a diode coupled between the storage capacitor and the current mirror circuit, and a second transistor configured to couple between a gate of a power switching device and the ground terminal. A gate of the second transistor is coupled to the storage capacitor by way of the voltage sensing circuit.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: October 1, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Jae Won Choi, Richard Turkson
  • Patent number: 10432175
    Abstract: Apparatus, devices, and systems to provide a low quiescent current load switch are disclosed. A disclosed load switch circuit includes a transconductor to convert a voltage to a current input to a transistor gate, the current input to the transistor gate to control the gate to deliver power to a load from a power supply. The example circuit includes a resistor to provide power from a charge pump to the gate as controlled by the transconductor. A disclosed apparatus includes a driver to control a gate of a transistor, the gate to enable the transistor to deliver power to a load from a power supply when the gate is activated, and a gate slope control to control a rate of change over time of a voltage associated with the gate to activate the gate and to disable the driver when the gate is activated.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: October 1, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Jae Won Choi, Sungho Beck, Abidur Rahman
  • Patent number: 10432184
    Abstract: Channel switchover power multiplexer circuits, and methods of operating the same are disclosed. An example power multiplexer a first transistor coupled to a first input, a second transistor coupled to the first transistor to couple a first voltage at the first input to an output, a third transistor coupled to a second input, a fourth transistor coupled to the third transistor to couple a second voltage at the second input to the output, a diode amplifier to provide a third voltage to a gate of the first transistor to block a reverse current, and a soft-start amplifier to provide a fourth voltage to a gate of the fourth transistor to turn on (with adjustable VOUT ramp rate) the fourth transistor with a constant ramp rate.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: October 1, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Jae Won Choi, Sungho Beck, Richard Turkson, Johnny Klarenbeek, Bixia Li
  • Patent number: D862011
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: October 1, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-Su Kim, Jae-Won Choi, Seung-Wook Suh, Jae-Ho Jang
  • Patent number: D879397
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 24, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-Su Kim, Jae-Won Choi, Seung-Wook Suh, Jae-Ho Jang
  • Patent number: D880089
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 31, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-Su Kim, Jae-Won Choi, Seung-Wook Suh, Jae-Ho Jang
  • Patent number: D887095
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: June 9, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Won Choi, Hyun-Woo Yoon, Yun-Ho Yang
  • Patent number: D887654
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: June 16, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Won Choi, Hyun-Woo Yoon, Yun-Ho Yang
  • Patent number: D887655
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: June 16, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Won Choi, Hyun-Woo Yoon, Yun-Ho Yang