Patents by Inventor LUCIUS YUN

LUCIUS YUN 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).

  • Garbage collection method for nonvolatile memory device
    Patent number: 8769191
    Abstract: A nonvolatile memory device includes a memory area having free segments and first to fourth regions having used segments. The garbage collection method includes selecting a target segment from the used segments, moving a valid data block from the selected target segment to the used segments, and erasing data of all data blocks in the selected target segment and making the selected target segment into a free segment. When the number of free segments is greater than a predefined value, the target segment is selected by a first method and valid data blocks in the target segment are moved by a second method. When the number of free segments is less than the predefined value, the target segment is selected by a third method and valid data blocks in the target segment are moved by a fourth method.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: July 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Lucius Yun, Shin-Ho Oh
  • GARBAGE COLLECTION METHOD FOR NONVOLATILE MEMORY DEVICE
    Publication number: 20130117501
    Abstract: A nonvolatile memory device includes a memory area having free segments and first to fourth regions having used segments. The garbage collection method includes selecting a target segment from the used segments, moving a valid data block from the selected target segment to the used segments, and erasing data of all data blocks in the selected target segment and making the selected target segment into a free segment. When the number of free segments is greater than a predefined value, the target segment is selected by a first method and valid data blocks in the target segment are moved by a second method. When the number of free segments is less than the predefined value, the target segment is selected by a third method and valid data blocks in the target segment are moved by a fourth method.
    Type: Application
    Filed: July 27, 2012
    Publication date: May 9, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: LUCIUS YUN, SHIN-HO OH