公开(公告)号：US20150169403A1

公开(公告)日：2015-06-18

申请号：US14569442

申请日：2014-12-12

Applicant: Silicon Motion, Inc.

Inventor： Chia-Han YEN ,  Hung-Ta HSU

IPC: G06F11/10 ,  G11C29/52

CPC classification number: G06F11/0727 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0653 ,  G06F3/0679 ,  G06F11/0757 ,  G06F11/076 ,  G06F11/0793 ,  G06F11/1048 ,  G06F2201/81 ,  G11C16/3418 ,  G11C16/3495 ,  G11C29/42 ,  G11C29/4401 ,  G11C29/52 ,  G11C2029/0409 ,  G11C2029/0411

Abstract: A data storage device including a flash memory and a controller. The controller performs a first read operation on the pages of a first block of a first block group, and performs a maintenance process to determine whether the first group read count of the first block group is greater than a read threshold when the first read operation is finished. The controller scans the blocks of the first block group to obtain a plurality of first error bit numbers when the first group read count is greater than the read threshold, and updates the block corresponding to the first error bit number that is greater than an error-bit threshold.

Abstract translation: 一种包括闪存和控制器的数据存储设备。 控制器对第一块组的第一块的页面执行第一读取操作，并且执行维护处理以确定当第一读取操作是第一块组时第一块组的第一组读取计数是否大于读取阈值 完成了 当第一组读取计数大于读取阈值时，控制器扫描第一块组的块以获得多个第一错误位号，并且更新与第一错误位数相对应的块大于错误位数， 位阈值。

公开(公告)号：US20170161135A1

公开(公告)日：2017-06-08

申请号：US15442181

申请日：2017-02-24

Applicant: Silicon Motion, Inc.

Inventor： Chia-Han YEN ,  Hung-Ta HSU

IPC: G06F11/07 ,  G11C29/52 ,  G06F3/06 ,  G11C29/44

CPC classification number: G06F11/0727 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0653 ,  G06F3/0679 ,  G06F11/0757 ,  G06F11/076 ,  G06F11/0793 ,  G06F11/1048 ,  G06F2201/81 ,  G11C16/3418 ,  G11C16/3495 ,  G11C29/42 ,  G11C29/4401 ,  G11C29/52 ,  G11C2029/0409 ,  G11C2029/0411

Abstract: A data storage device including a flash memory and a controller. The controller performs a first read operation on the pages of a first block of a first block group, and performs a maintenance process to determine whether the first group read count of the first block group is greater than a read threshold when the first read operation is finished. The controller scans the blocks of the first block group to obtain a plurality of first error bit numbers when the first group read count is greater than the read threshold, and updates the block corresponding to the first error bit number that is greater than an error-bit threshold.