Patents by Inventor Beop-Hee Kim

Beop-Hee 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: 9979363
    Abstract: A source driver includes a buffer device including a plurality of buffers corresponding to a plurality of data lines, each of the plurality of buffers respectively including an amplifier configured to amplify an input signal and an output driver configured to output a driving signal to a corresponding data line among the plurality of data lines; and a switch device including a charge sharing switch configured to electrically connect the plurality of data lines to one another during a charge sharing operation, each of the amplifiers including a first current mirror having a reference current path including a first node and an output current path including a second node, and the first node of the reference current path and the second node of the output current path are electrically connected to each other during the charge sharing operation.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 22, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Hyun Ko, Yong-joo Song, Jun-ho Song, Jin-chul Choi, Beop-hee Kim
  • Publication number: 20170032740
    Abstract: A source driver includes a buffer device including a plurality of buffers corresponding to a plurality of data lines, each of the plurality of buffers respectively including an amplifier configured to amplify an input signal and an output driver configured to output a driving signal to a corresponding data line among the plurality of data lines; and a switch device including a charge sharing switch configured to electrically connect the plurality of data lines to one another during a charge sharing operation, each of the amplifiers including a first current mirror having a reference current path including a first node and an output current path including a second node, and the first node of the reference current path and the second node of the output current path are electrically connected to each other during the charge sharing operation.
    Type: Application
    Filed: June 2, 2016
    Publication date: February 2, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ju-Hyun KO, Yong-joo SONG, Jun-ho SONG, Jin-chul CHOI, Beop-hee KIM
  • Patent number: 8054302
    Abstract: Embodiments of the invention provide a digital-to-analog converter (DAC) that is configured to process upper data bits, a control data bit, and a lower data bit using two decoders and a control logic. The resulting DAC provides high resolution output using a minimum circuit area. Embodiments of the invention also provide a sample and hold circuit for a DAC that reduces the effects of parasitic capacitance at the input of an operational amplifier (OP-AMP).
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Beop-Hee Kim, Ji-Woon Jung, Yong-Weon Jeon
  • Publication number: 20080030489
    Abstract: Embodiments of the invention provide a digital-to-analog converter (DAC) that is configured to process upper data bits, a control data bit, and a lower data bit using two decoders and a control logic. The resulting DAC provides high resolution output using a minimum circuit area. Embodiments of the invention also provide a sample and hold circuit for a DAC that reduces the effects of parasitic capacitance at the input of an operational amplifier (OP-AMP).
    Type: Application
    Filed: July 16, 2007
    Publication date: February 7, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Beop-Hee KIM, Ji-Woon JUNG, Yong-Weon JEON