Patents by Inventor Kee-Won Kwon

Kee-Won Kwon 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: 10482962
    Abstract: A ternary content addressable memory (TCAM) device includes a memory cell. The memory cell includes a data storage circuit, a limiter circuit, and a discharge circuit. The data storage circuit includes a first resistor and a second resistor connected in series to divide a voltage corresponding to search data, and configured to store cell data. The limiter circuit is configured to receive the divided voltage through an input terminal and transmit an output voltage through an output terminal based on a level of the divided voltage. The discharge circuit discharges a matching line indicating whether the stored cell data matches with the search data, based on the output voltage of the limiter circuit.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: November 19, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., Research & Business Foundation, Sungkyunkwan Univ.
    Inventors: Cheol Kim, Hyun-Suk Kang, Kee-Won Kwon, Rak-Joo Sung, Sung-Gi Ahn
  • Patent number: 10395719
    Abstract: A memory device includes a storage circuit, a first driving circuit, and a second driving circuit. The storage circuit stores first data and compares the first data and second data. The first driving circuit selectively drives a matching line to a first logic state, depending on a comparison result of the first data and the second data by the storage circuit. The second driving circuit drives the matching line to a second logic state regardless of the comparison result.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: August 27, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Cheol Kim, Kee-Won Kwon, Ji-Su Min, Rak-Joo Sung, Sung-gi Ahn
  • Publication number: 20190130958
    Abstract: A memory device includes a storage circuit, a first driving circuit, and a second driving circuit. The storage circuit stores first data and compares the first data and second data. The first driving circuit selectively drives a matching line to a first logic state, depending on a comparison result of the first data and the second data by the storage circuit. The second driving circuit drives the matching line to a second logic state regardless of the comparison result.
    Type: Application
    Filed: June 12, 2018
    Publication date: May 2, 2019
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Cheol Kim, Kee-Won Kwon, Ji-Su Min, Rak-Joo Sung, Sung-gi Ahn
  • Publication number: 20190080762
    Abstract: A ternary content addressable memory (TCAM) device includes a memory cell. The memory cell includes a data storage circuit, a limiter circuit, and a discharge circuit. The data storage circuit includes a first resistor and a second resistor connected in series to divide a voltage corresponding to search data, and configured to store cell data. The limiter circuit is configured to receive the divided voltage through an input terminal and transmit an output voltage through an output terminal based on a level of the divided voltage. The discharge circuit discharges a matching line indicating whether the stored cell data matches with the search data, based on the output voltage of the limiter circuit.
    Type: Application
    Filed: May 15, 2018
    Publication date: March 14, 2019
    Inventors: Cheol KIM, HYUN-SUK KANG, KEE-WON KWON, RAK-JOO SUNG, SUNG-GI AHN
  • Patent number: 9659641
    Abstract: A resistive memory device may include a resistive cell array and an on-chip resistance measurement circuit. The resistive cell array may include a plurality of resistive memory cells. The on-chip resistance measurement circuit may be configured to generate a first current and a second current greater or less than the first current based on a cell current corresponding to a cell resistance of a first memory cell of the resistive memory cells, and to generate first and second digital signals based on the first and second current, respectively.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chan-Kyung Kim, Kee-Won Kwon
  • Patent number: 9654118
    Abstract: A phase-rotating phase locked loop (PLL) may include first and second loops that share a loop filter and a voltage controlled oscillator in order to perform the operation of a phase-rotating PLL, the first and second loops configured to activate in response to an enable signal. The PLL may further include a phase frequency detection controller configured to provide the enable signal to the first and second loops in response to a transition of a coarse signal that may be applied as a digital code.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: May 16, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Junhan Bae, Kee-Won Kwon, Kyungho Kim, Jung Hoon Chun, Youngsoo Sohn, Seok Kim
  • Publication number: 20160315625
    Abstract: A phase-rotating phase locked loop (PLL) may include first and second loops that share a loop filter and a voltage controlled oscillator in order to perform the operation of a phase-rotating PLL, the first and second loops configured to activate in response to an enable signal. The PLL may further include a phase frequency detection controller configured to provide the enable signal to the first and second loops in response to a transition of a coarse signal that may be applied as a digital code.
    Type: Application
    Filed: June 10, 2016
    Publication date: October 27, 2016
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Junhan BAE, Kee-Won KWON, Kyungho KIM, Jung Hoon CHUN, Youngsoo SOHN, Seok KIM
  • Patent number: 9385730
    Abstract: A phase-rotating phase locked loop (PLL) may include first and second loops that share a loop filter and a voltage controlled oscillator in order to perform the operation of a phase-rotating PLL, the first and second loops configured to activate in response to an enable signal. The PLL may further include a phase frequency detection controller configured to provide the enable signal to the first and second loops in response to a transition of a coarse signal that may be applied as a digital code.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: July 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Junhan Bae, Kee-won Kwon, Kyoungho Kim, Jung Hoon Chun, Youngsoo Sohn, Seok Kim
  • Patent number: 9330743
    Abstract: A memory core of a resistive type memory device includes at least a first resistive type memory cell coupled to a bit-line, a first resistance to voltage converter and a bit-line sense amplifier. The first resistance to voltage converter is coupled to the bit-line at a first node. The first resistance to voltage converter converts a resistance of the first resistive type memory cell to a corresponding voltage based on a read column selection signal. The bit-line sense amplifier is coupled to the bit-line at the first node and is coupled to a complementary bit-line at a second node. The bit-line sense amplifier senses and amplifies a voltage difference of the bit-line and the complementary bit-line in response to a sensing control signal.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: May 3, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chan-Kyung Kim, Kee-Won Kwon, Su-A Kim, Chul-Woo Park, Jae-Youn Youn
  • Publication number: 20150364178
    Abstract: A memory core of a resistive type memory device includes at least a first resistive type memory cell coupled to a bit-line, a first resistance to voltage converter and a bit-line sense amplifier. The first resistance to voltage converter is coupled to the bit-line at a first node. The first resistance to voltage converter converts a resistance of the first resistive type memory cell to a corresponding voltage based on a read column selection signal. The bit-line sense amplifier is coupled to the bit-line at the first node and is coupled to a complementary bit-line at a second node. The bit-line sense amplifier senses and amplifies a voltage difference of the bit-line and the complementary bit-line in response to a sensing control signal.
    Type: Application
    Filed: April 3, 2015
    Publication date: December 17, 2015
    Inventors: Chan-Kyung KIM, Kee-Won KWON, Su-A KIM, Chul-Woo PARK, Jae-Youn YOUN
  • Publication number: 20150364187
    Abstract: A resistive memory device may include a resistive cell array and an on-chip resistance measurement circuit. The resistive cell array may include a plurality of resistive memory cells. The on-chip resistance measurement circuit may be configured to generate a first current and a second current greater or less than the first current based on a cell current corresponding to a cell resistance of a first memory cell of the resistive memory cells, and to generate first and second digital signals based on the first and second current, respectively.
    Type: Application
    Filed: March 17, 2015
    Publication date: December 17, 2015
    Inventors: Chan-Kyung KIM, Kee-Won KWON
  • Publication number: 20140333346
    Abstract: A phase-rotating phase locked loop (PLL) may include first and second loops that share a loop filter and a voltage controlled oscillator in order to perform the operation of a phase-rotating PLL, the first and second loops configured to activate in response to an enable signal. The PLL may further include a phase frequency detection controller configured to provide the enable signal to the first and second loops in response to a transition of a coarse signal that may be applied as a digital code.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 13, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Junhan BAE, Kee-won KWON, Kyoungho KIM, Jung Hoon CHUN, Youngsoo SOHN, Seok KIM
  • Patent number: 8547719
    Abstract: A stacked memory device includes a plurality of memory layers, where at least one of the plurality of memory layers is stacked on another of the plurality of memory layers and each of the memory layers includes an array of memory cells, a first active circuit unit configured to classify and process address information for at least one of the memory cells as vertical address information and horizontal address information, and at least one second active circuit unit configured to generate a memory selection signal for at least one of the memory cells based on signals processed by the first active circuit unit.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: October 1, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-chul Park, Kee-won Kwon, I-hun Song, Young-soo Park, Chang-jung Kim, Sang-wook Kim, Sun-il Kim
  • Patent number: 8384439
    Abstract: Provided are a semiconductor device and a method of fabricating the semiconductor device. The semiconductor device may be a complementary device including a p-type oxide TFT and an n-type oxide TFT. The semiconductor device may be a logic device such as an inverter, a NAND device, or a NOR device.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: February 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-chul Park, I-hun Song, Young-soo Park, Kee-won Kwon, Chang-jung Kim, Kyoung-kook Kim, Sung-ho Park, Sung-hoon Lee, Sang-wook Kim, Sun-il Kim
  • Patent number: 8319425
    Abstract: An organic light emitting display device having RFID includes a substrate including a pixel region having at least one organic light emitting device and a non-pixel region formed on the outer circumference of the pixel region, a sealing substrate that seals at least the pixel region of the substrate, an RFID antenna pattern on the sealing substrate, and an RFID chip electrically coupled to the RFID antenna pattern.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: November 27, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventor: Kee-Won Kwon
  • Publication number: 20120026790
    Abstract: Provided are a semiconductor device having a block state confirmation cell that may store information indicating the number of data bits written to a plurality of memory cells, a method of reading memory data based on the number of the data bits written, and/or a memory programming method of storing the information indicating the number of the data bits written. The semiconductor device may include one or more memory blocks and a controller. Each of the memory blocks may include a plurality of memory cells each storing data, and a block state confirmation cell storing information indicating the number of data bits written to the memory cells. The controller may read the data bits from the memory blocks based on the number of data bits, which is indicated in the information in the block state confirmation cell.
    Type: Application
    Filed: September 1, 2011
    Publication date: February 2, 2012
    Inventors: Ju-hee Park, Jae-woong Hyun, Kyoung-lae Cho, Yoon-dong Park, Seung-hoon Lee, Kee-won Kwon
  • Patent number: 8050087
    Abstract: Provided are a semiconductor device having a block state confirmation cell that may store information indicating the number of data bits written to a plurality of memory cells, a method of reading memory data based on the number of the data bits written, and/or a memory programming method of storing the information indicating the number of the data bits written. The semiconductor device may include one or more memory blocks and a controller. Each of the memory blocks may include a plurality of memory cells each storing data, and a block state confirmation cell storing information indicating the number of data bits written to the memory cells. The controller may read the data bits from the memory blocks based on the number of data bits, which is indicated in the information in the block state confirmation cell.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-hee Park, Jae-woong Hyun, Kyoung-lae Cho, Yoon-dong Park, Seung-hoon Lee, Kee-won Kwon
  • Publication number: 20110049597
    Abstract: A non-volatile memory device including two or more capacitors having different sizes formed in separated regions and operating at a low voltage, the non-volatile memory device including: a conductive semiconductor substrate formed of a first conductive material; a conductive separation layer provided on at least one portion of the first conductive semiconductor substrate and formed of a second conductive material different from the first conductive material, and which separates an inside of the first conductive semiconductor substrate into a first region and a second region; an insulation layer provided on the first region and the second region to contact the first region and the second region; a charge storage layer provided on the insulation layer; a control gate electrically connected to the first region; and a data line electrically connected to the second region.
    Type: Application
    Filed: March 31, 2010
    Publication date: March 3, 2011
    Applicants: SAMSUNG TECHWIN CO., LTD., SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION
    Inventors: Ji-hong KIM, Kee-won KWON
  • Publication number: 20100207506
    Abstract: An organic light emitting display device having RFID includes a substrate including a pixel region having at least one organic light emitting device and a non-pixel region formed on the outer circumference of the pixel region, a sealing substrate that seals at least the pixel region of the substrate, an RFID antenna pattern on the sealing substrate, and an RFID chip electrically coupled to the RFID antenna pattern.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 19, 2010
    Inventor: Kee-Won Kwon
  • Publication number: 20100148825
    Abstract: Provided are a semiconductor device and a method of fabricating the semiconductor device. The semiconductor device may be a complementary device including a p-type oxide TFT and an n-type oxide TFT. The semiconductor device may be a logic device such as an inverter, a NAND device, or a NOR device.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 17, 2010
    Inventors: Jae-chul Park, I-hun Song, Young-soo Park, Kee-won Kwon, Chang-jung Kim, Kyoung-kook Kim, Sung-ho Park, Sung-hoon Lee, Sang-wook Kim, Sun-il Kim