Patents by Inventor WONCHURI ZOO

WONCHURI ZOO 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).

  • Mobile flash storage boot partition and/or logical unit shadowing
    Patent number: 10146627
    Abstract: Embodiments of the inventive concept include computer-implemented method for shadowing one or more boot images of a mobile device. The technique can include duplicating boot images to shadow partitions in a user area of a non-volatile memory device such as a flash memory. The technique can include detecting boot image corruption, and causing a mobile device to boot from the shadow partitions. The technique can include dynamically shadowing and releasing blocks used by the shadow partitions. The technique can include boot failure recovery and bad image preservation through firmware flash translation layer (FTL) logical to physical mapping updates. Boot image corruption failures can be recovered from and/or debugged using the shadow partitions.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: December 4, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yang Yu, Chang-Eun Choi, Kyung Ho Kim, Walter Jun, Wonchuri Zoo, Robert Brennan
  • MOBILE FLASH STORAGE BOOT PARTITION AND/OR LOGICAL UNIT SHADOWING
    Publication number: 20180032403
    Abstract: Embodiments of the inventive concept include computer-implemented method for shadowing one or more boot images of a mobile device. The technique can include duplicating boot images to shadow partitions in a user area of a non-volatile memory device such as a flash memory. The technique can include detecting boot image corruption, and causing a mobile device to boot from the shadow partitions. The technique can include dynamically shadowing and releasing blocks used by the shadow partitions. The technique can include boot failure recovery and bad image preservation through firmware flash translation layer (FTL) logical to physical mapping updates. Boot image corruption failures can be recovered from and/or debugged using the shadow partitions.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 1, 2018
    Inventors: Yang YU, Chang-Eun CHOI, Kyung Ho KIM, Walter JUN, Wonchuri ZOO, Robert BRENNAN
  • Mobile flash storage boot partition and/or logical unit shadowing
    Patent number: 9823972
    Abstract: Embodiments of the inventive concept include computer-implemented method for shadowing one or more boot images of a mobile device. The technique can include duplicating boot images to shadow partitions in a user area of a non-volatile memory device such as a flash memory. The technique can include detecting boot image corruption, and causing a mobile device to boot from the shadow partitions. The technique can include dynamically shadowing and releasing blocks used by the shadow partitions. The technique can include boot failure recovery and bad image preservation through firmware flash translation layer (FTL) logical to physical mapping updates. Boot image corruption failures can be recovered from and/or debugged using the shadow partitions.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: November 21, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yang Yu, Chang-Eun Choi, Kyung Ho Kim, Walter Jun, Wonchuri Zoo, Robert Brennan
  • Management method for nonvolatile memory system following power-off
    Patent number: 9431069
    Abstract: A management method for a memory system executes a first memory system management sequence upon determining that the memory system was normally powered off, and a second sequence upon determining that the memory system was abnormally powered off. The first sequence allows immediate execution of a program operation at a valid data page location extracted from stored metadata, while the second sequence allows execution of a program operation only after programming dummy data to at least one erroneous page.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: August 30, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chaesuk Lim, Jinhyuk Kim, Taekkyun Lee, Wonchuri Zoo
  • MOBILE FLASH STORAGE BOOT PARTITION AND/OR LOGICAL UNIT SHADOWING
    Publication number: 20160117225
    Abstract: Embodiments of the inventive concept include computer-implemented method for shadowing one or more boot images of a mobile device. The technique can include duplicating boot images to shadow partitions in a user area of a non-volatile memory device such as a flash memory. The technique can include detecting boot image corruption, and causing a mobile device to boot from the shadow partitions. The technique can include dynamically shadowing and releasing blocks used by the shadow partitions. The technique can include boot failure recovery and bad image preservation through firmware flash translation layer (FTL) logical to physical mapping updates. Boot image corruption failures can be recovered from and/or debugged using the shadow partitions.
    Type: Application
    Filed: March 19, 2015
    Publication date: April 28, 2016
    Inventors: Yang YU, Chang-Eun CHOI, Kyung Ho KIM, Walter JUN, Wonchuri ZOO, Robert BRENNAN
  • MANAGEMENT METHOD FOR NONVOLATILE MEMORY SYSTEM FOLLOWING POWER-OFF
    Publication number: 20150006939
    Abstract: A management method for a memory system executes a first memory system management sequence upon determining that the memory system was normally powered off, and a second sequence upon determining that the memory system was abnormally powered off. The first sequence allows immediate execution of a program operation at a valid data page location extracted from stored metadata, while the second sequence allows execution of a program operation only after programming dummy data to at least one erroneous page.
    Type: Application
    Filed: June 9, 2014
    Publication date: January 1, 2015
    Inventors: CHAESUK LIM, JINHYUK KIM, TAEKKYUN LEE, WONCHURI ZOO