Patents by Inventor Kyung Chun Kim

Kyung Chun 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).

  • Publication number: 20220326095
    Abstract: Disclosed is a temperature measurement system including: a light source unit for receiving excitation light; a target material on which the temperature-sensitive film is attached in order to emit the received excitation light into emission light; a phosphorescence detector for extracting the emission light into a phosphorescence decay signal; and a temperature extraction unit for extracting temperature of the target material using the phosphorescence decay signal.
    Type: Application
    Filed: March 18, 2021
    Publication date: October 13, 2022
    Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Kyung Chun KIM, Chang Sik HA, TAO CAI, YONGZHU YAN
  • Patent number: 10745636
    Abstract: There is provided a flow-resistance reducing laminate comprising: a substrate; and a flow-resistance reducing layer formed on the substrate, wherein the flow-resistance reducing layer has a surface portion facing a liquid, wherein a flow interface is formed between the liquid and the laminate upon relative movement between the liquid and the laminate, wherein the flow-resistance reducing layer is configured such that an air layer defines the flow interface.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: August 18, 2020
    Assignee: PUSAN NATIONAL UNIVERSITY INDUSTRY UNIVERSITY COOPERATION
    Inventors: Jeung Sang Go, Hyun-jong Paik, Kyung Chun Kim, Sang Youl Yoon
  • Publication number: 20180346840
    Abstract: There is provided a flow-resistance reducing laminate comprising: a substrate; and a flow-resistance reducing layer formed on the substrate, wherein the flow-resistance reducing layer has a surface portion facing a liquid, wherein a flow interface is formed between the liquid and the laminate upon relative movement between the liquid and the laminate, wherein the flow-resistance reducing layer is configured such that an air layer defines the flow interface.
    Type: Application
    Filed: April 5, 2016
    Publication date: December 6, 2018
    Applicant: PUSAN NATIONAL UNIVERSITY INDUSTRY UNIVERSITY COOPERATION FOUNDATION OF PUSAN
    Inventors: Jeung Sang GO, Hyun-jong PAIK, Kyung Chun KIM, Sang Youl YOON
  • Patent number: 10147381
    Abstract: A display driving circuit includes a first bias circuit, a second bias circuit, a selector, and an output buffer. The first bias circuit generates a first bias voltage set. The second bias circuit generates a second bias voltage set. The selector selects one of the first and second bias voltage sets based on a bias selection signal. The output buffer buffers a grayscale voltage corresponding to display data and outputs the buffered grayscale voltage The output buffer is biased based on the first or second bias voltage set selected by the selector.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: December 4, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-woo Lee, Hyun-sang Park, Hye-Jin Jung, Kyung-chun Kim
  • Patent number: 9361846
    Abstract: A charge sharing method, device, and system is disclosed. For example, a charge sharing method for a display driver is disclosed. The method includes: receiving a first row of data for a first row of source lines; receiving a second row of data for a second row of source lines; for each source line of at least a first group of the source lines, determining whether a change amount between data for that source line from the first row of data and data for that source line from the second row of data is above a threshold; and performing selective charge sharing based on the determinations.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong Young Ryu, Hyun Sang Park, Kyung Chun Kim
  • Publication number: 20160093270
    Abstract: A display driving circuit includes a first bias circuit, a second bias circuit, a selector, and an output buffer. The first bias circuit generates a first bias voltage set. The second bias circuit generates a second bias voltage set. The selector selects one of the first and second bias voltage sets based on a bias selection signal. The output buffer buffers a grayscale voltage corresponding to display data and outputs the buffered grayscale voltage The output buffer is biased based on the first or second bias voltage set selected by the selector.
    Type: Application
    Filed: July 16, 2015
    Publication date: March 31, 2016
    Inventors: Jin-woo LEE, Hyun-sang PARK, Hye-jin JUNG, Kyung-chun KIM
  • Publication number: 20160071455
    Abstract: A display driver and display method are provided. The display driver includes a line buffer which receives a plurality of first pixel data corresponding to a first line, and a controller which receives a plurality of second pixel data corresponding to a second line that is different from the first line. The controller also receives the first pixel data from the line buffer, classifies the second pixel data into a plurality of transition types based on the first pixel data and the second pixel data, calculates one or more characteristic values indicating characteristics of each transition type, and determines whether to perform charge sharing of channels based on the characteristic values.
    Type: Application
    Filed: June 18, 2015
    Publication date: March 10, 2016
    Inventors: Hye-Jin JUNG, Hyun-Sang PARK, Kyung-Chun KIM
  • Patent number: 9240234
    Abstract: A method of operating a channel buffer block is provided. The method includes changing bias voltages applied to bias lines in an input stage included in the channel buffer block using a coupling effect of coupling capacitors during a slewing interval and increasing bias currents in the input stage using input voltages and changed bias voltages.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: January 19, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung Chun Kim, Hyun Sang Park
  • Publication number: 20150357998
    Abstract: A method of operating a channel buffer block is provided. The method includes changing bias voltages applied to bias lines in an input stage included in the channel buffer block using a coupling effect of coupling capacitors during a slewing interval and increasing bias currents in the input stage using input voltages and changed bias voltages.
    Type: Application
    Filed: December 23, 2014
    Publication date: December 10, 2015
    Inventors: KYUNG CHUN KIM, Hyun Sang Park
  • Publication number: 20140346782
    Abstract: The present invention relates to a micro power generator and power generation method using a liquid droplet to produce electricity using alternating current (AC) power induced by changing the contact areas of a liquid droplet between two electrode plates by vibration. The micro power generator according to the present invention includes first and second electrode plates positioned adjacent to and facing each other; an ion-containing liquid droplet positioned between the first and second electrode plates; and a power generation unit for producing electricity using AC voltage generated between the first and second electrode plates while as at least one of the first and second electrode plates is vibrated, a contact area between each of the first and second electrode plates and the liquid droplet changes with time.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Applicant: Pusan National University Industry-University Cooperation Foundation
    Inventors: Hyuk Kyu PAK, Jong Kyun Moon, Kyung Chun Kim, Sang Youl Yoon, Hyung Dong Kim, Jaeki Jeong, Dongyun Lee
  • Publication number: 20140320464
    Abstract: A charge sharing method, device, and system is disclosed. For example, a charge sharing method for a display driver is disclosed. The method includes: receiving a first row of data for a first row of source lines; receiving a second row of data for a second row of source lines; for each source line of at least a first group of the source lines, determining whether a change amount between data for that source line from the first row of data and data for that source line from the second row of data is above a threshold; and performing selective charge sharing based on the determinations.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 30, 2014
    Inventors: Seong Young RYU, Hyun Sang PARK, Kyung Chun KIM
  • Patent number: 8730214
    Abstract: Provided is a COG panel system capable of minimizing a block dim effect by considering a relationship among a plurality of chips. The COG panel system includes: an FPC which supplies at least two power supply voltages having a constant voltage level; a plurality of SDIs which are commonly supplied with a bypass power supply voltage from the FPC and generate respective parts of a plurality of consecutive LCD driving signals required for an arbitrary one line of an LCD; and at least one block dim correction resistance.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: May 20, 2014
    Assignee: Silicon Works Co., Ltd.
    Inventors: Kyung Chun Kim, An Young Kim, Joon Ho Na, Dae Seong Kim
  • Publication number: 20110057968
    Abstract: Provided is a COG panel system capable of minimizing a block dim effect by considering a relationship among a plurality of chips. The COG panel system includes: an FPC which supplies at least two power supply voltages having a constant voltage level; a plurality of SDIs which are commonly supplied with a bypass power supply voltage from the FPC and generate respective parts of a plurality of consecutive LCD driving signals required for an arbitrary one line of an LCD; and at least one block dim correction resistance.
    Type: Application
    Filed: April 29, 2009
    Publication date: March 10, 2011
    Applicant: Silicon Works Co., Ltd.
    Inventors: Kyung Chun Kim, An Young Kim, Joon Ho Na, Dae Seong Kim