Patents by Inventor Woo-Seok Kim

Woo-Seok Kim 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: 11005484
    Abstract: A phase locked loop circuit includes a voltage controlled oscillator configured to output a clock signal having a predetermined frequency based in a control voltage, a phase frequency detector configured to compare the clock signal with a reference signal to output a first control signal and a second control signal, a charge pump configured to output the control voltage based on the first control signal and the second control signal, a voltage supply including an output terminal connected to an output terminal of the charge pump by a transmission switch, and a leakage remover circuit connected to the transmission switch and configured to remove a leakage current flowing through the transmission switch while the transmission switch is turned-off.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 11, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gyu Sik Kim, Woo Seok Kim, Tae Ik Kim, Hwan Seok Yeo
  • Patent number: 10951215
    Abstract: A semiconductor device includes a time-to-digital converter (TDC) that receives a reference frequency signal and a feedback frequency signal, and outputs a first digital signal indicating a time difference between the reference frequency signal and the feedback frequency signal; a digital loop filter (DLF) that outputs a second digital signal generated by filtering the first digital signal; a multiplier circuit that outputs one of a third digital signal and a final test signal, the third digital signal generated by performing a multiplication operation on the second digital signal using a multiplication coefficient; a digital-controlled oscillator (DCO) that generates an oscillation signal having a frequency based on the output one of the third digital signal and the final test signal; and a loop gain calibrator (LGC) that receives the oscillation signal, generates a pair of test signals, and determines the multiplication coefficient using the pair of test signals.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: March 16, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won Sik Yu, Woo Seok Kim, Ji Hyun Kim, Tae Ik Kim
  • Patent number: 10875980
    Abstract: The present disclosure relates to a reinforcing material for rubber including aluminosilicate particles and a rubber composition for tires including the same. The reinforcing material for rubber according to the present disclosure exhibits excellent dispersibility in the rubber composition and reinforcing effect, and thus can be suitably used for eco-friendly tires requiring high efficiency and high fuel efficiency characteristics.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: December 29, 2020
    Inventors: Shin Hee Jun, Ha Na Lee, Kwon Il Choi, Woo Seok Kim, Han Nah Jeong, Myounghwan Oh
  • Patent number: 10815358
    Abstract: The present disclosure relates to a reinforcing material for rubber including aluminosilicate particles, and a rubber composition for tires including the same. The reinforcing material for rubber according to the present disclosure exhibits excellent dispersibility in the rubber composition and reinforcing effect, and thus can be suitably used for eco-friendly tires requiring high efficiency and high fuel efficiency characteristics.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: October 27, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Ha Na Lee, Shin Hee Jun, Kwon Il Choi, Woo Seok Kim, Myounghwan Oh, Han Nah Jeong
  • Patent number: 10812054
    Abstract: A digitally-controlled oscillator (DCO) includes a current mirror configured to generate a reference current at a first output terminal thereof, and a supply current having a magnitude proportional to a magnitude of the reference current at a second output terminal thereof. An oscillation circuit is provided, which is responsive to the supply current at an input node thereof. This oscillation circuit generates a periodic output signal having a frequency that varies in response to changes in the magnitude of the supply current. A variable resistance circuit is provided, which is responsive to a first control signal having a magnitude that influences a value of a resistance provided between a first node thereof, which receives the reference current, and a second node thereof.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: October 20, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kang-yeop Choo, Woo-seok Kim, Tae-ik Kim
  • Patent number: 10793441
    Abstract: The present disclosure relates to a method for preparing aluminosilicate particles having excellent dispersion, a reinforcing material for rubber including the aluminosilicate particles, and a rubber composition for tires including the same. The reinforcing material for rubber including the aluminosilicate particles prepared by the method of the present disclosure can exhibit excellent dispersibility in the rubber composition and an enhanced reinforcing effect, so that it can be suitably used in eco-friendly tires requiring high efficiency and high fuel efficiency.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: October 6, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Kwon Il Choi, Ha Na Lee, Woo Seok Kim, Shin Hee Jun, Myounghwan Oh
  • Publication number: 20200148854
    Abstract: The present disclosure relates to a reinforcing material for rubber including aluminosilicate particles, and a rubber composition for tires including the same. The reinforcing material for rubber according to the present disclosure exhibits excellent dispersibility in the rubber composition and reinforcing effect, and thus can be suitably used for eco-friendly tires requiring high efficiency and high fuel efficiency characteristics.
    Type: Application
    Filed: September 4, 2017
    Publication date: May 14, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Ha Na Lee, Shin Hee Jun, Kwon Il Choi, Woo Seok Kim, Myounghwan Oh, Han Nah Jeong
  • Patent number: 10640640
    Abstract: The present invention relates to a low-viscosity liquid epoxy resin composition and a pressure vessel manufactured using the same, and, more particularly, to a low-viscosity liquid epoxy resin composition, which has good workability due to low viscosity of the epoxy resin composition and exhibits both excellent elongation and an excellent glass transition temperature, and thus is applicable to pressure vessels for compressed natural gas and pressure vessels for compressed hydrogen gas, and a pressure vessel having excellent pressure-resistant characteristics manufactured using the same.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: May 5, 2020
    Assignee: TORAY ADVANCED MATERIALS KOREA INC.
    Inventors: Jae-Pil Cho, Soo-Hyeong Park, Yoen-Ung Bae, Woo-Seok Kim
  • Publication number: 20200131330
    Abstract: The present disclosure relates to a reinforcing material for rubber including aluminosilicate particles and a rubber composition for tires including the same. The reinforcing material for rubber according to the present disclosure exhibits excellent dispersibility in the rubber composition and reinforcing effect, and thus can be suitably used for eco-friendly tires requiring high efficiency and high fuel efficiency characteristics.
    Type: Application
    Filed: September 4, 2017
    Publication date: April 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Shin Hee JUN, Ha Na LEE, Kwon Il CHOI, Woo Seok KIM, Han Nah JEONG, Myounghwan OH
  • Publication number: 20200131341
    Abstract: The present disclosure relates to an organic-inorganic composite for rubber reinforcement, a method for preparing the same, and a rubber composition for tires including the same. The organic-inorganic composite for rubber reinforcement according to the present disclosure exhibits excellent dispersibility in the rubber composition and reinforcing effect, and thus can be suitably used for eco-friendly tires requiring high efficiency and high fuel efficiency characteristics.
    Type: Application
    Filed: January 5, 2018
    Publication date: April 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Woo Seok Kim, Shin Hee Jun, Ha Na Lee, Kwon Il Choi, Myounghwan Oh
  • Publication number: 20200127670
    Abstract: A semiconductor device includes a time-to-digital converter (TDC) that receives a reference frequency signal and a feedback frequency signal, and outputs a first digital signal indicating a time difference between the reference frequency signal and the feedback frequency signal; a digital loop filter (DLF) that outputs a second digital signal generated by filtering the first digital signal; a multiplier circuit that outputs one of a third digital signal and a final test signal, the third digital signal generated by performing a multiplication operation on the second digital signal using a multiplication coefficient; a digital-controlled oscillator (DCO) that generates an oscillation signal having a frequency based on the output one of the third digital signal and the final test signal; and a loop gain calibrator (LGC) that receives the oscillation signal, generates a pair of test signals, and determines the multiplication coefficient using the pair of test signals.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won Sik YU, Woo Seok Kim, Ji Hyun Kim, Tae Ik Kim
  • Patent number: 10613141
    Abstract: A clock jitter measurement circuit includes: an internal signal generator configured to generate a single pulse signal and an internal clock signal which are both synchronized with an input clock signal received by the clock jitter measurement circuit, a plurality of edge delay cells serially connected to each other and configured to generate a plurality of edge detection signals respectively corresponding to a plurality of delay edges obtained by delaying an edge of the internal clock signal, a plurality of latch circuits configured to latch the single pulse signal in synchronization with the plurality of edge detection signals and output a plurality of sample signals, and a count sub-circuit configured to count a number of activated sample signals of the plurality of sample signals and output a count value based on the counted number of activated sample signals.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: April 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kang-Yeop Choo, Hyun-Ik Kim, Woo-Seok Kim, Jung-Ho Kim, Ji-Hyun Kim, Tae-Ik Kim
  • Publication number: 20200021278
    Abstract: A digitally-controlled oscillator (DCO) includes a current mirror configured to generate a reference current at a first output terminal thereof, and a supply current having a magnitude proportional to a magnitude of the reference current at a second output terminal thereof. An oscillation circuit is provided, which is responsive to the supply current at an input node thereof. This oscillation circuit generates a periodic output signal having a frequency that varies in response to changes in the magnitude of the supply current. A variable resistance circuit is provided, which is responsive to a first control signal having a magnitude that influences a value of a resistance provided between a first node thereof, which receives the reference current, and a second node thereof.
    Type: Application
    Filed: February 8, 2019
    Publication date: January 16, 2020
    Inventors: Kang-yeop Choo, Woo-seok Kim, Tae-ik Kim
  • Publication number: 20200021298
    Abstract: A phase locked loop circuit includes a voltage controlled oscillator configured to output a clock signal having a predetermined frequency based in a control voltage, a phase frequency detector configured to compare the clock signal with a reference signal to output a first control signal and a second control signal, a charge pump configured to output the control voltage based on the first control signal and the second control signal, a voltage supply including an output terminal connected to an output terminal of the charge pump by a transmission switch, and a leakage remover circuit connected to the transmission switch and configured to remove a leakage current flowing through the transmission switch while the transmission switch is turned-off.
    Type: Application
    Filed: December 11, 2018
    Publication date: January 16, 2020
    Inventors: Gyu Sik KIM, Woo Seok KIM, Tae Ik KIM, Hwan Seok YEO
  • Publication number: 20200010329
    Abstract: The present disclosure relates to a method for preparing aluminosilicate particles having excellent dispersion, a reinforcing material for rubber including the aluminosilicate particles, and a rubber composition for tires including the same. The reinforcing material for rubber including the aluminosilicate particles prepared by the method of the present disclosure can exhibit excellent dispersibility in the rubber composition and an enhanced reinforcing effect, so that it can be suitably used in eco-friendly tires requiring high efficiency and high fuel efficiency.
    Type: Application
    Filed: October 18, 2017
    Publication date: January 9, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Kwon Il Choi, Ha Na Lee, Woo Seok Kim, Shin Hee Jun, Myounghwan Oh
  • Patent number: 10522115
    Abstract: A display apparatus is provided. The display apparatus includes a display, a communicator configured to receive a color identification code based on HTML5 from a server, and a processor configured to control the display to display the color identification code and an image corresponding to the color identification code. The color identification code includes information associated with the displayed image and is recognizable by an external apparatus that captures the displayed color identification code.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: December 31, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-il Hwang, Woo-seok Kim, Jong-ho Lea, Morio Yoshimoto
  • Publication number: 20190390039
    Abstract: The present disclosure relates to an inorganic composite, a method for producing the same, and a rubber composition for tires including the same. The inorganic composite according to the present disclosure is easy to handle, thereby improving safety of operators and productivity. Moreover, the inorganic composite makes it possible to uniformly disperse the inorganic particles in a rubber composition and to enhance the reinforcing effect. The rubber composition including the inorganic composite can be suitably used for eco-friendly tires requiring high efficiency and high fuel efficiency characteristics.
    Type: Application
    Filed: April 12, 2018
    Publication date: December 26, 2019
    Inventors: Shin Hee JUN, Ha Na LEE, Kwon Il CHOI, Woo Seok KIM, Myounghwan OH
  • Patent number: 10516405
    Abstract: A semiconductor device includes a time-to-digital converter (TDC) that receives a reference frequency signal and a feedback frequency signal, and outputs a first digital signal indicating a time difference between the reference frequency signal and the feedback frequency signal; a digital loop filter (DLF) that outputs a second digital signal generated by filtering the first digital signal; a multiplier circuit that outputs one of a third digital signal and a final test signal, the third digital signal generated by performing a multiplication operation on the second digital signal using a multiplication coefficient; a digital-controlled oscillator (DCO) that generates an oscillation signal having a frequency based on the output one of the third digital signal and the final test signal; and a loop gain calibrator (LGC) that receives the oscillation signal, generates a pair of test signals, and determines the multiplication coefficient using the pair of test signals.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: December 24, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Sik Yu, Woo Seok Kim, Ji Hyun Kim, Tae Ik Kim
  • Publication number: 20190375645
    Abstract: The present disclosure relates to a method for preparing aluminosilicate nanoparticles having excellent dispersibility. According to the present disclosure, amorphous aluminosilicate nanoparticles can be provided by a simple method of obtaining an aluminosilicate salt by a neutralization reaction between a silicon source and an aluminum source. Particularly, according to the above method, aluminosilicate nanoparticles exhibiting improved workability and productivity in a rubber molding process while having excellent dispersibility in a rubber composition can be provided.
    Type: Application
    Filed: September 14, 2018
    Publication date: December 12, 2019
    Inventors: Kwon Il CHOI, Myounghwan OH, Ha Na LEE, Woo Seok KIM, Eun Kyu SEONG
  • Publication number: 20190368143
    Abstract: A safety barrier includes: a body installed on a road; a steel plate portion placed between the body and the road; and an anchor portion passing through the steel plate portion and having an upper part buried in the body and a lower part buried in the road, wherein a first space in which a middle part of the anchor portion other than the upper part and the lower part is placed, is formed between the body and the road, and when an impact is applied to the body, the body is moved while accompanying bending deformation of the middle part in the first space so that the impact is absorbed, and after bending deformation of the middle part occurs, the steel plate portion breaks the anchor portion to implement further movement of the body caused by the impact so that the impact is dispersed.
    Type: Application
    Filed: September 21, 2018
    Publication date: December 5, 2019
    Inventors: Woo Seok KIM, Jae Ha LEE