公开(公告)号：US20200218650A1

公开(公告)日：2020-07-09

申请号：US16822032

申请日：2020-03-18

Applicant: Silicon Motion, Inc.

Inventor： HONG-JUNG HSU ,  HUANG-HSING WU

IPC: G06F12/02 ,  G06F12/1009 ,  G06F12/06

Abstract: A memory management method applicable to a data storage device is provided. The memory management method includes steps of: requesting a private memory space from a host; recording a reserved memory space given by the host; dividing a mapping table into a plurality of sub-mapping tables; determining whether a capacity of the reserved memory space is sufficient to store the sub-mapping tables; and if yes, uploading the sub-mapping tables to the reserved memory space via an interface logic.

公开(公告)号：US20180137057A1

公开(公告)日：2018-05-17

申请号：US15783973

申请日：2017-10-13

Applicant: Silicon Motion, Inc.

Inventor： HONG-JUNG HSU ,  CHEN-HUI HSU

IPC: G06F12/1045 ,  G06F12/1009

CPC classification number: G06F12/1063 ,  G06F12/0246 ,  G06F12/0868 ,  G06F12/1009 ,  G06F2212/1016 ,  G06F2212/214 ,  G06F2212/313 ,  G06F2212/466 ,  G06F2212/65 ,  G06F2212/657 ,  G06F2212/7201

Abstract: An operating method for a data storage device is provided. The operating method includes steps of: dividing a mapping table into a plurality of sub-mapping tables; receiving an access command comprising a data address and a command category; determining whether a target sub-mapping table corresponding to the data address has been cached, wherein the target sub-mapping table is one of the sub-mapping tables; and if false, reading and caching the target sub-mapping table from the sub-mapping tables.

公开(公告)号：US20180129602A1

公开(公告)日：2018-05-10

申请号：US15783953

申请日：2017-10-13

Applicant: Silicon Motion, Inc.

Inventor： HONG-JUNG HSU ,  CHUN-CHIEH KUO

IPC: G06F12/02 ,  G06F3/06

CPC classification number: G06F12/0261 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/0647 ,  G06F3/0652 ,  G06F3/0679 ,  G06F3/068 ,  G06F12/0269 ,  G06F2212/1044 ,  G06F2212/7201 ,  G06F2212/7205

Abstract: A garbage collection method for a data storage device includes steps of: entering a background mode from a foreground mode; selecting a plurality of source data blocks from a plurality of in-use data blocks; dividing a mapping table into a plurality of sub-mapping tables and selecting one of the sub-mapping tables as a target sub-mapping table, wherein the target sub-mapping table is used to manage one of the source data blocks; selecting a destination data block from a plurality of spare data blocks; and sequentially updating a correspondence relationship of data stored in the target sub-mapping table from the source data blocks to the destination data block, wherein the updating comprises copying the data stored in the source data blocks to the destination data block.

公开(公告)号：US20200226062A1

公开(公告)日：2020-07-16

申请号：US16833680

申请日：2020-03-30

Applicant: Silicon Motion, Inc.

Inventor： HONG-JUNG HSU ,  Chun-Chieh Kuo

IPC: G06F12/02 ,  G06F3/06

Abstract: A garbage collection method for a data storage device includes steps of: entering a background mode from a foreground mode; selecting a plurality of source data blocks from a plurality of in-use data blocks; dividing a mapping table into a plurality of sub-mapping tables and selecting one of the sub-mapping tables as a target sub-mapping table, wherein the target sub-mapping table is used to manage one of the source data blocks; selecting a destination data block from a plurality of spare data blocks; and sequentially updating a correspondence relationship of data stored in the target sub-mapping table from the source data blocks to the destination data block, wherein the updating comprises copying the data stored in the source data blocks to the destination data block.

公开(公告)号：US20200218667A1

公开(公告)日：2020-07-09

申请号：US16820749

申请日：2020-03-17

Applicant: Silicon Motion, Inc.

Inventor： HONG-JUNG HSU ,  CHEN-HUI HSU

IPC: G06F12/1045 ,  G06F12/02 ,  G06F12/1009

Abstract: An operating method for a data storage device is provided. The operating method includes steps of: dividing a mapping table into a plurality of sub-mapping tables; receiving an access command comprising a data address and a command category; determining whether a target sub-mapping table corresponding to the data address has been cached, wherein the target sub-mapping table is one of the sub-mapping tables; and if false, reading and caching the target sub-mapping table from the sub-mapping tables.

公开(公告)号：US20180137048A1

公开(公告)日：2018-05-17

申请号：US15785264

申请日：2017-10-16

Applicant: Silicon Motion, Inc.

Inventor： HONG-JUNG HSU ,  HUANG-HSING WU

IPC: G06F12/02 ,  G06F12/1009 ,  G06F12/06

CPC classification number: G06F12/0246 ,  G06F12/0638 ,  G06F12/0868 ,  G06F12/0897 ,  G06F12/1009 ,  G06F2212/1016 ,  G06F2212/1044 ,  G06F2212/205 ,  G06F2212/222 ,  G06F2212/225 ,  G06F2212/313 ,  G06F2212/466 ,  G06F2212/65 ,  G06F2212/70 ,  G06F2212/7201 ,  G06F2212/7202 ,  G06F2212/7204

Abstract: A memory management method applicable to a data storage device is provided. The memory management method includes steps of: requesting a private memory space from a host; recording a reserved memory space given by the host; dividing a mapping table into a plurality of sub-mapping tables; determining whether a capacity of the reserved memory space is sufficient to store the sub-mapping tables; and if yes, uploading the sub-mapping tables to the reserved memory space via an interface logic.