Patents by Inventor Jaewook Cheong

Jaewook Cheong 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: 7191306
    Abstract: A flash memory, and a flash memory access method and apparatus allowing memory access and error block recovery by creating a mapping table representing a physical address and status of a data block into a map block of the flash memory and referring to the mapping table. The flash memory includes a map block having a first mapping table containing a physical address allocated to each of blocks constituting a data block and status information of each of the blocks, a second mapping table containing mapping information between the physical address and a logical address on each of the blocks in the first mapping table from which error blocks are excluded, and a third mapping table in which most recent mapping information is written and processed by a specified value to minimize an update operation of the second mapping table.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: March 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungju Myoung, Jaewook Cheong, Bumsoo Kim
  • Publication number: 20040085849
    Abstract: A flash memory, and a flash memory access method and apparatus allowing memory access and error block recovery by creating a mapping table representing a physical address and status of a data block into a map block of the flash memory and referring to the mapping table. The flash memory includes a map block having a first mapping table containing a physical address allocated to each of blocks constituting a data block and status information of each of the blocks, a second mapping table containing mapping information between the physical address and a local address on each of the blocks in the first mapping table from which error blocks are excluded, and a third mapping table in which most recent mapping information is written and processed by a specified value to minimize an update operation of the second mapping table.
    Type: Application
    Filed: October 29, 2003
    Publication date: May 6, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungju Myoung, Jaewook Cheong, Bumsoo Kim