• Patent Title: Method for performing access control in a memory device, associated memory device and controller thereof
  • Application No.: US16120311
    Application Date: 2018-09-03
  • Publication No.: US10705749B2
    Publication Date: 2020-07-07
  • Inventor: Chiao-Wen Cheng
  • Applicant: Silicon Motion Inc.
  • Applicant Address: TW Hsinchu County
  • Assignee: Silicon Motion, Inc.
  • Current Assignee: Silicon Motion, Inc.
  • Current Assignee Address: TW Hsinchu County
  • Agent Winston Hsu
  • Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1c4f4bef
  • Main IPC: G06F3/06
  • IPC: G06F3/06 G06F11/10
Method for performing access control in a memory device, associated memory device and controller thereof
Abstract:
A method for performing access control in a memory device, the associated memory device and the controller thereof are provided. The method includes: according to at least one predetermined arrangement pattern, writing a plurality of sets of symbols into a plurality of storage regions of a memory as a plurality of redundant array of independent disks (RAID) groups, respectively; and utilizing a RAID engine circuit in the memory device to perform a plurality of operations related to data protection, such as: determining a series of reading patterns corresponding to the predetermined arrangement pattern; according to a reading pattern of the series of reading patterns, reading a plurality of symbols from each RAID group of the RAID groups; and performing exclusive-OR (XOR) operations on the symbols to convert the symbols into at least one XOR result, for performing data protection.
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