公开(公告)号：US20150178001A1

公开(公告)日：2015-06-25

申请号：US14503938

申请日：2014-10-01

Applicant: Silicon Motion, Inc.

Inventor： Jieh-Hsin Chien ,  Hung-Ta Hsu

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/064 ,  G06F3/0653 ,  G06F3/0679

Abstract: A data storage device including a flash memory, a temperature sensor, and a controller. The temperature sensor detects surrounding ambient temperature. The controller reads the temperature sensor to obtain a current temperature parameter at a predetermined time, compares a plurality of write temperatures of the blocks with the current temperature parameter one by one, and writes data stored in at least one first block of the blocks into at least one third block of the blocks, wherein the first block corresponds to at least one first write temperature of the write temperatures, and the difference between the first write temperature and the current temperature parameter is greater than a predetermined value.

Abstract translation: 一种包括闪速存储器，温度传感器和控制器的数据存储装置。 温度传感器检测周围环境温度。 控制器读取温度传感器以在预定时间获得当前温度参数，将块的多个写入温度与当前温度参数逐一比较，并将存储在块的至少一个第一块中的数据写入到 块的至少三分之一块，其中第一块对应于写入温度的至少一个第一写入温度，并且第一写入温度和当前温度参数之间的差异大于预定值。

公开(公告)号：US09620245B2

公开(公告)日：2017-04-11

申请号：US14569442

申请日：2014-12-12

Applicant: Silicon Motion, Inc.

Inventor： Chia-Han Yen ,  Hung-Ta Hsu

IPC: G11C29/00 ,  G11C29/52 ,  G11C29/42 ,  G11C29/44 ,  G06F11/10 ,  G11C16/34 ,  G11C29/04

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.

公开(公告)号：US10379924B2

公开(公告)日：2019-08-13

申请号：US15442181

申请日：2017-02-24

Applicant: Silicon Motion, Inc.

Inventor： Chia-Han Yen ,  Hung-Ta Hsu

IPC: G11C29/00 ,  G06F11/07 ,  G11C29/52 ,  G11C29/42 ,  G11C29/44 ,  G06F11/10 ,  G11C16/34 ,  G06F3/06 ,  G11C29/04

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.