Patents by Inventor Jin Hyeok Choi

Jin Hyeok Choi 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: 20160004655
    Abstract: A computing system includes a first unified module including a first storage device and a second storage device that are different from each other, and a unified module interface configured to provide a direct memory access (DMA) request signal to control a first DMA with respect to the first storage device and to perform a second DMA on the second storage device. An application processor is configured to receive the DMA request signal from the unified module interface, and provide a DMA request response signal to the unified module interface and control the second DMA with respect to the second storage device.
    Type: Application
    Filed: July 3, 2015
    Publication date: January 7, 2016
    Inventors: YOUNG-KWANG YOO, JIN-HYEOK CHOI, SUN-YOUNG LIM, YOUNG-JIN CHO
  • Publication number: 20150191385
    Abstract: A method for sequestrating carbon dioxide in the ocean of the present invention coverts carbon dioxide into a high concentration of bicarbonate ions by using a neutralization method using calcium oxide commonly contained in alkaline industrial waste, prepares elution water for stably containing bicarbonate ions even when making contact with the atmosphere through aeration, and discharges the elution water into an area of the ocean of a relatively shallow depth to sequestrate carbon dioxide. According to the present invention, the present invention is a carbon dioxide storage method which uses alkaline industrial waste to carry out carbon dioxide ocean sequestration at relatively low cost, and can sequestrate carbon dioxide for a long time while minimizing bad environmental influences such as ocean acidification and the like, and is thus environmentally friendly.
    Type: Application
    Filed: August 14, 2012
    Publication date: July 9, 2015
    Applicant: KOREA ELECTRIC POWER CORPORATION
    Inventors: Jung Hyun Lee, Jin Hyeok Choi, Joon Woo Gil
  • Publication number: 20140082405
    Abstract: An embedded multimedia card (eMMC) includes a clock channel that receives a clock signal from a host, a command channel that receives a command from the host, a plurality of data channels that transmit data to the host, and a return clock channel that transmits a return clock synchronized with the data to the host.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Inventors: JUNG PIL LEE, JIN HYEOK CHOI, HWA SEOK OH, YOUNG-GYU KANG, SUNG HO SEO, MYUNG SUB SHIN, KYUNG PHIL YOO
  • Publication number: 20140082398
    Abstract: An embedded multimedia card (eMMC) is provided. The eMMC includes a clock channel receiving a clock output from a host, data channels receiving data signals from the host, and a command channel receiving a SWITCH command including delay offset values from the host so as to adjust a delay of at least one of the data signals, which are received, in response to the delay offset values.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Applicant: SAMSUNG SEMICONDUCTOR CO., LTD.
    Inventors: JUNG PIL LEE, YOUNG GYU KANG, SUNG HO SEO, MYUNG SUB SHIN, KYUNG PHIL YOO, KYOUNG LAE CHO, JIN HYEOK CHOI, SEONG SIK HWANG
  • Publication number: 20140082250
    Abstract: An eMMC includes flash memory including an extended card specific data (CSD) register (“EXT_CSD register”), and an eMMC controller that controls operation of the flash memory. The eMMC controller is receives a clock from a host via a clock line, receives a SEND_EXT_CSD command from the host via a command line, and provides the host with eMMC information stored in the EXT_CSD register via a data bus in response to the SEND_EXT_CSD command, the eMMC information including maximum operating frequency information for the eMMC.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: KYUNG PHIL YOO, JIN HYEOK CHOI, SEONG SIK HWANG, YOUNG GYU KANG, JUNG PIL LEE, SUNG HO SEO, MYUNG SUB SHIN
  • Patent number: 8539143
    Abstract: A memory system is provided includes a host processor, and a plurality of cascade connected memory cards connected to the host processor. Each of the memory cards stores a same default relative card address (RCA) prior to initialization of the memory system. The host processor is configured to sequentially access each memory card using the default RCA, and to change the default RCA to a unique RCA upon each sequential access.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: September 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hyeok Choi, Sung-Hoon Lee, Si-Hoon Hong, Tae-Keun Jeon
  • Patent number: 8281064
    Abstract: A nonvolatile memory system is operated by providing data to be written to a nonvolatile memory, logically combining the data to be written to the nonvolatile memory with a random pattern to generate encoded data; and programming the encoded data in the nonvolatile memory.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: October 2, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwa-Seok Oh, Jin-Hyeok Choi
  • Patent number: 8230303
    Abstract: A data processing method of a memory system including a flash memory, which includes judging whether data initially read from a selected page of the flash memory is correctable. If the initially read data is judged not to be correctable, the data is newly read from the selected page based upon each of newly determined read voltages. Thereafter, error-free sub-sectors of the newly read data are collected based upon EDC data corresponding to the initially read data. The data of the error-free sub-sectors are then corrected based upon ECC data corresponding to the initially read data.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: July 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hyeok Choi, Hwaseok Oh, Jong-uk Song
  • Publication number: 20120179871
    Abstract: A memory system is provided includes a host processor, and a plurality of cascade connected memory cards connected to the host processor. Each of the memory cards stores a same default relative card address (RCA) prior to initialization of the memory system. The host processor is configured to sequentially access each memory card using the default RCA, and to change the default RCA to a unique RCA upon each sequential access.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Hyeok CHOI, Sung-Hoon LEE, Si-Hoon HONG, Tae-Keun JEON
  • Patent number: 8187768
    Abstract: The present invention relates to a separating plate of solid oxide fuel cell stack. The separating plate of solid oxide fuel cell stack includes a substrate, upper and lower micro channel plates and upper and lower sealing guides. The substrate includes a fuel inflow/outflow manifold and an air inflow/outflow manifold disposed opposing to each other in a diagonal direction, a fuel channel having a pair of horizontal channels and an inclined channel connecting ends of the horizontal channels so as to connect the fuel inflow/outflow manifold, and an air channel having a pair of vertical channels and an inclined channel connecting ends of the vertical channels so as to connect the air inflow/outflow manifold. The upper and lower micro channel plates are attached to upper and lower parts of the substrate and includes a plurality of micro channels so as to distribute uniformly fuel flowing in the fuel channel and air flowing in the air channel.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: May 29, 2012
    Assignee: Korea Electric Power Corporation
    Inventors: Tae-Hee Lee, Young-Sung Yoo, Jin-Hyeok Choi
  • Patent number: 8166230
    Abstract: A memory system is provided includes a host processor, and a plurality of cascade connected memory cards connected to the host processor. Each of the memory cards stores a same default relative card address (RCA) prior to initialization of the memory system. The host processor is configured to sequentially access each memory card using the default RCA, and to change the default RCA to a unique RCA upon each sequential access.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: April 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hyeok Choi, Sung-Hoon Lee, Si-Hoon Hong, Tae-Keun Jeon
  • Publication number: 20110070519
    Abstract: The present invention relates to a separating plate of solid oxide fuel cell stack. The separating plate of solid oxide fuel cell stack includes a substrate, upper and lower micro channel plates and upper and lower sealing guides. The substrate includes a fuel inflow/outflow manifold and an air inflow/outflow manifold disposed opposing to each other in a diagonal direction, a fuel channel having a pair of horizontal channels and an inclined channel connecting ends of the horizontal channels so as to connect the fuel inflow/outflow manifold, and an air channel having a pair of vertical channels and an inclined channel connecting ends of the vertical channels so as to connect the air inflow/outflow manifold. The upper and lower micro channel plates are attached to upper and lower parts of the substrate and includes a plurality of micro channels so as to distribute uniformly fuel flowing in the fuel channel and air flowing in the air channel.
    Type: Application
    Filed: October 28, 2009
    Publication date: March 24, 2011
    Applicant: KOREA ELECTRIC POWER CORPORATION
    Inventors: Tae-Hee LEE, Young-Sung YOO, Jin-Hyeok CHOI
  • Patent number: 7755950
    Abstract: A method of programming a multilevel cell flash memory includes dividing a memory cell array of the flash memory into a user block and a cache block, programming first LSB data into a page of the user block, programming first MSB data into the page of the user block after programming the first LSB data, programming second LSB data into a page of the cache block, and storing control data for controlling the flash memory in the cache block.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: July 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Sung Yu, Jin-Hyeok Choi
  • Patent number: 7706204
    Abstract: A memory card includes a non-volatile memory; and a power management unit for receiving an external supply voltage to supply an operating voltage to the non-volatile memory. The power management unit boosts/bypasses the external supply voltage based on whether the external supply voltage is lower than a detection voltage and then outputs the boosted/bypassed voltage as the operating voltage of the non-volatile memory.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: April 27, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hyeok Choi, Sam-Yong Bahng, Chil-Hee Chung
  • Publication number: 20100011164
    Abstract: A memory system is provided includes a host processor, and a plurality of cascade connected memory cards connected to the host processor. Each of the memory cards stores a same default relative card address (RCA) prior to initialization of the memory system. The host processor is configured to sequentially access each memory card using the default RCA, and to change the default RCA to a unique RCA upon each sequential access.
    Type: Application
    Filed: January 14, 2009
    Publication date: January 14, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Hyeok CHOI, Sung-Hoon LEE, Si-Hoon HONG, Tae-Keun JEON
  • Publication number: 20090259803
    Abstract: A nonvolatile memory system is operated by providing data to be written to a nonvolatile memory, logically combining the data to be written to the nonvolatile memory with a random pattern to generate encoded data; and programming the encoded data in the nonvolatile memory.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 15, 2009
    Inventors: Hwa-Seok Oh, Jin-Hyeok Choi
  • Patent number: 7602642
    Abstract: A nonvolatile memory system includes a host system, a memory controller, and a flash memory chip including multi-level flash memory cells. The memory controller includes a backup memory adapted to store a backup copy of previously programmed data from the multi-level flash memory cells when further programming of the multi-level flash memory cells fails. The backup copy of the previously programmed data is used to detect and correct any errors in the previously programmed data before reprogramming the previously programmed data to different multi-level memory cells in the nonvolatile memory system.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: October 13, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jin-Hyeok Choi
  • Patent number: 7596021
    Abstract: A memory system includes a flash memory storing multi-bit data in one memory cell. A memory controller controls the flash memory to program the multi-bit data in the memory cell. The flash memory programs the multi-bit data in the memory cell in a single program operation.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: September 29, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hyeok Choi, Bong-Ryeol Lee
  • Patent number: 7594157
    Abstract: Provided are a memory system and a program method. The memory system includes a flash memory and a memory controller. The flash memory stores first bit data and then stores second bit data in a multi-level memory cell. The memory controller includes a buffer memory temporarily storing the first bit data and the second bit data, and a backup memory storing the first bit data while the flash memory is storing the second bit data. The backup memory re-programs the first bit data to the flash memory upon detecting a program failure associated with the storing the second bit data.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: September 22, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hyeok Choi, Bong-Ryeol Lee
  • Publication number: 20090180346
    Abstract: A memory card includes a non-volatile memory; and a power management unit for receiving an external supply voltage to supply an operating voltage to the non-volatile memory. The power management unit boosts/bypasses the external supply voltage based on whether the external supply voltage is lower than a detection voltage and then outputs the boosted/bypassed voltage as the operating voltage of the non-volatile memory.
    Type: Application
    Filed: March 18, 2009
    Publication date: July 16, 2009
    Inventors: Jin-Hyeok CHOI, Sam-Yong Bahng, Chil-Hee Chung