Patents by Inventor Ju-ha Kim

Ju-ha 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: 10200645
    Abstract: An image sensor is disclosed. The image sensor includes a plurality of pixels, a switch circuit coupled to the pixels and configured to substantially simultaneously output signals output only from pixels having similar characteristics among the pixels in response to a control signal; and a comparison circuit configured to convert the signals output from the switch circuit into digital signals. The pixels having similar characteristics are located across among the plurality of pixels.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: February 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung Min Koh, Ju Ha Kim, Jae Cheol Yun
  • Publication number: 20170347045
    Abstract: Provided are an image sensor and a method of driving the same. The image sensor includes n optical black pixels which are arranged in the same horizontal line; and m comparators which are matched with the n optical black pixels, wherein n is a natural number greater than or equal to two, and m is a natural number greater than n.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 30, 2017
    Inventors: Kyoung-Min KOH, Kwang-Hyun LEE, Ju-Ha KIM, Han YANG, Jae-Cheol YUN
  • Patent number: 9769405
    Abstract: An image sensor includes a pixel array including a plurality of pixels, a row driver configured to control an operation of each of the plurality of pixels, a voltage supply line connected to a reset transistor included in each of the plurality of pixels, and a voltage supply circuit which detects a signal from the voltage supply line and supplies one of a first voltage and a second voltage to the voltage supply line based on the signal from the voltage supply line.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung Min Koh, Kwang Hyun Lee, Shin Hoo Kim, Ju Ha Kim, Ji Yong Kim, Seok Yong Park, Jae Cheol Yun, Jae Jin Jung, Woong Joo
  • Patent number: 9769402
    Abstract: Provided are an image sensor and a method of driving the same. The image sensor includes n optical black pixels which are arranged in the same horizontal line; and m comparators which are matched with the n optical black pixels, wherein n is a natural number greater than or equal to two, and m is a natural number greater than n.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-Min Koh, Kwang-Hyun Lee, Ju-Ha Kim, Han Yang, Jae-Cheol Yun
  • Patent number: 9380233
    Abstract: An image sensor includes a pixel array including at least one active pixel and at least one line-optical black (L-OB) pixel arranged in a matrix including first to nth rows and first to mth columns, the pixel array configured to output a pixel signal and a dark-level offset signal in units of columns during a read-out operation in one of the first to nth rows; a row driver configured to output a selection control signal to the first to nth rows; and an analog-to-digital converter (ADC) block configured to digitize the pixel signal and the dark-level offset signal. In the pixel array, a dark-level offset signal is simultaneously output from an L-OB pixel in another row during the read-out operation in one of the first to nth rows. Here, ‘n’ and ‘m’ each denote an integer that is equal to or greater than ‘2’.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: June 28, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Han Yang, Kyoung Min Koh, Yong Lim, Shin Hoo Kim, Ju Ha Kim, Seung Jin Lee, Jae Jin Jung, Kee Moon Chun
  • Publication number: 20160173800
    Abstract: An image sensor is disclosed. The image sensor includes a plurality of pixels, a switch circuit coupled to the pixels and configured to substantially simultaneously output signals output only from pixels having similar characteristics among the pixels in response to a control signal; and a comparison circuit configured to convert the signals output from the switch circuit into digital signals. The pixels having similar characteristics are located across among the plurality of pixels.
    Type: Application
    Filed: December 10, 2015
    Publication date: June 16, 2016
    Inventors: Kyoung Min KOH, Ju Ha KIM, Jae Cheol YUN
  • Publication number: 20150062397
    Abstract: An image sensor includes a pixel array including a plurality of pixels, a row driver configured to control an operation of each of the plurality of pixels, a voltage supply line connected to a reset transistor included in each of the plurality of pixels, and a voltage supply circuit which detects a signal from the voltage supply line and supplies one of a first voltage and a second voltage to the voltage supply line based on the signal from the voltage supply line.
    Type: Application
    Filed: August 5, 2014
    Publication date: March 5, 2015
    Inventors: Kyoung Min KOH, Kwang Hyun LEE, Shin Hoo KIM, Ju Ha KIM, Ji Yong KIM, Seok Yong PARK, Jae Cheol YUN, Jae Jin JUNG, Woong JOO
  • Publication number: 20150034803
    Abstract: Provided are an image sensor and a method of driving the same. The image sensor includes n optical black pixels which are arranged in the same horizontal line; and m comparators which are matched with the n optical black pixels, wherein n is a natural number greater than or equal to two, and m is a natural number greater than n.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 5, 2015
    Inventors: Kyoung-Min KOH, Kwang-Hyun LEE, Ju-Ha KIM, Han YANG, Jae-Cheol YUN
  • Publication number: 20140240569
    Abstract: An image sensor includes a pixel array including at least one active pixel and at least one line-optical black (L-OB) pixel arranged in a matrix including first to nth rows and first to mth columns, the pixel array configured to output a pixel signal and a dark-level offset signal in units of columns during a read-out operation in one of the first to nth rows; a row driver configured to output a selection control signal to the first to nth rows; and an analog-to-digital converter (ADC) block configured to digitize the pixel signal and the dark-level offset signal. In the pixel array, a dark-level offset signal is simultaneously output from an L-OB pixel in another row during the read-out operation in one of the first to nth rows. Here, ‘n’ and ‘m’ each denote an integer that is equal to or greater than ‘2’.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 28, 2014
    Inventors: HAN YANG, Kyoung Min Koh, Yong Lim, Shin Hoo Kim, Ju Ha Kim, Seung Jin Lee, Jae Jin Jung, Kee Moon Chun
  • Publication number: 20090251188
    Abstract: A clock driver capable of minimizing the ripple of an output signal of a charge pump, and the charge pump including the clock driver are disclosed.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 8, 2009
    Inventor: Ju-ha Kim