Patents by Inventor Don Ku LEE

Don Ku LEE 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).

  • Counting apparatus, analog-to-digital converter and image sensor including the same
    Patent number: 10148899
    Abstract: A counting apparatus may include: a count control unit suitable for controlling a counting operation of a common value and a differential value of two pixel signals according to two neighboring output signals of a comparator unit; a counting unit suitable for counting a clock during a period corresponding to the common value and the differential value, according to control of the count control unit; and a memory unit suitable for storing count information from the counting unit and operation information from the count control unit.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: December 4, 2018
    Assignee: SK Hynix Inc.
    Inventor: Don-Ku Lee
  • COUNTING APPARATUS, ANALOG-TO-DIGITAL CONVERTER AND IMAGE SENSOR INCLUDING THE SAME
    Publication number: 20180167574
    Abstract: A counting apparatus may include: a count control unit suitable for controlling a counting operation of a common value and a differential value of two pixel signals according to two neighboring output signals of a comparator unit; a counting unit suitable for counting a clock during a period corresponding to the common value and the differential value, according to control of the count control unit; and a memory unit suitable for storing count information from the counting unit and operation information from the count control unit.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 14, 2018
    Inventor: Don-Ku LEE
  • Counting apparatus, analog-to-digital converter and image sensor including the same
    Patent number: 9930282
    Abstract: A counting apparatus may include: a count control unit suitable for controlling a counting operation of a common value and a differential value of two pixel signals according to two neighboring output signals of a comparator unit; a counting unit suitable for counting a clock during a period corresponding to the common value and the differential value, according to control of the count control unit; and a memory unit suitable for storing count information from the counting unit and operation information from the count control unit.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: March 27, 2018
    Assignee: SK Hynix Inc.
    Inventor: Don-Ku Lee
  • Display driving device compensating for offset voltage and method thereof
    Patent number: 9812050
    Abstract: A display driving device includes a data driver having a plurality of output drivers configured to output display driving signals. The display driving device also includes an offset adjusting circuit configured to subtract offset voltages generated in the output drivers from an input image signal to generate a corrected image signal. The offset adjusting circuit transmits the corrected image signal to the data driver, so that the data driver outputs the driving signals based on the corrected image signal.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: November 7, 2017
    Assignees: SK HYNIX INC., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Byong Deok Choi, Don Ku Lee
  • COUNTING APPARATUS, ANALOG-TO-DIGITAL CONVERTER AND IMAGE SENSOR INCLUDING THE SAME
    Publication number: 20170155859
    Abstract: A counting apparatus may include: a count control unit suitable for controlling a counting operation of a common value and a differential value of two pixel signals according to two neighboring output signals of a comparator unit; a counting unit suitable for counting a clock during a period corresponding to the common value and the differential value, according to control of the count control unit; and a memory unit suitable for storing count information from the counting unit and operation information from the count control unit.
    Type: Application
    Filed: June 13, 2016
    Publication date: June 1, 2017
    Inventor: Don-Ku LEE
  • Digital counter
    Patent number: 9479178
    Abstract: A digital counter may include a first count unit suitable for outputting a first bit signal having a constant level in response to a first clock signal, a second count unit suitable for outputting a second bit signal having a constant level in response to a second clock signal, and a third count unit suitable for outputting a third bit signal toggling in response to the second clock signal, and performing a count operation.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: October 25, 2016
    Assignees: SK Hynix Inc., Industry-University Cooperation Foundation Hanyang University
    Inventors: Byong Deok Choi, Jong Seok Kim, Don Ku Lee
  • DIGITAL COUNTER
    Publication number: 20160056824
    Abstract: A digital counter may include a first count unit suitable for outputting a first bit signal having a constant level in response to a first clock signal, a second count unit suitable for outputting a second bit signal having a constant level in response to a second clock signal, and a third count unit suitable for outputting a third bit signal toggling in response to the second clock signal, and performing a count operation.
    Type: Application
    Filed: December 8, 2014
    Publication date: February 25, 2016
    Inventors: Byong Deok CHOI, Jong Seok KIM, Don Ku LEE
  • DISPLAY DRIVING DEVICE COMPENSATING FOR OFFSET VOLTAGE AND METHOD THEREOF
    Publication number: 20150179125
    Abstract: A display driving device includes a data driver having a plurality of output drivers configured to output display driving signals. The display driving device also includes an offset adjusting circuit configured to subtract offset voltages generated in the output drivers from an input image signal to generate a corrected image signal. The offset adjusting circuit transmits the corrected image signal to the data driver, so that the data driver outputs the driving signals based on the corrected image signal.
    Type: Application
    Filed: July 1, 2014
    Publication date: June 25, 2015
    Inventors: Byong Deok CHOI, Don Ku LEE