公开(公告)号：US20210240667A1

公开(公告)日：2021-08-05

申请号：US17236416

申请日：2021-04-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung Ho KIM ,  Seungyeun JEONG ,  Dae-Jin KIM ,  Sang-Jin OH ,  Hwasoo LEE ,  Hyejeong JANG

IPC: G06F16/16 ,  G06F16/18

Abstract: A trim management method for a storage device includes activating, by a processor configured by an application program, a pattern check function of a device driver, requesting, by the processor configured by the application program, a file system to write a file of a specified pattern, converting, by the processor configured by the file system, the file to management unit data of the storage device, transmitting, by the processor configured by the file system, the management unit data to the device driver, checking, by the processor configured by the device driver, whether a data pattern of the management unit data is the same as the specified pattern, and transmitting, by the processor configured by the device driver, a trim command for trimming a storage area corresponding to the management unit data, to the storage device based on results of the checking.

公开(公告)号：US20210216616A1

公开(公告)日：2021-07-15

申请号：US17036844

申请日：2020-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungjae LEE ,  Mingon SHIN ,  Jisoo KIM ,  Hwasoo LEE ,  Myeongjong JU

IPC: G06F21/32 ,  G06F12/14 ,  H04L9/32

Abstract: A memory controller and a storage device including the same are disclosed. A memory controller for controlling a nonvolatile memory includes: a security access control module configured to convert biometric authentication data received from a biometric module into security configuration data having a data format according to a security standard protocol and perform, based on the security configuration data, at least one of authority registration and authority authentication of a user authority set for an access control of a secure area of the nonvolatile memory, encrypted user data being stored in the secure area; and a data processing unit configured to, based on an access to the secure area being permitted, encrypt user data received from a host device or decrypt the encrypted user data read from the secure area.

公开(公告)号：US20180129674A1

公开(公告)日：2018-05-10

申请号：US15610810

申请日：2017-06-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyung Ho KIM ,  Seungyeun JEONG ,  Dae-Jin KIM ,  Sang-Jin OH ,  Hwasoo LEE ,  Hyejeong JANG

IPC: G06F17/30

CPC classification number: G06F16/162 ,  G06F16/1847

Abstract: A trim management method for a storage device includes activating, by a processor configured by an application program, a pattern check function of a device driver, requesting, by the processor configured by the application program, a file system to write a file of a specified pattern, converting, by the processor configured by the file system, the file to management unit data of the storage device, transmitting, by the processor configured by the file system, the management unit data to the device driver, checking, by the processor configured by the device driver, whether a data pattern of the management unit data is the same as the specified pattern, and transmitting, by the processor configured by the device driver, a trim command for trimming a storage area corresponding to the management unit data, to the storage device based on results of the checking.