DATA STORAGE DEVICE AND METHOD OF OPERATING THE SAME

• US 20160070493A1
• Filed: 09/02/2015
• Published: 03/10/2016
• Est. Priority Date: 09/04/2014
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KWON, MOON SANG, OH, SANG JIN
• Application Number:
  US14/843,400
• Publication Number:
  US 20160070493A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 21/606 by securing the transmission between two devices or processes
• CPC Class Codes: G06F 21/78 to assure secure storage of data address-based protection against unauthorised use of memory G06F12/14; record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00
• CPC Class Codes: G06F 2221/2113 Multi-level security, e.g. mandatory access control
• CPC Class Codes: G06F 3/0622 in relation to access
• CPC Class Codes: G06F 3/0637 Permissions
• CPC Class Codes: G06F 3/0644 Management of space entities, e.g. partitions, extents, pools
• CPC Class Codes: G06F 3/0679 Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]

Abstract

A data storage device includes a memory including a first region that stores an application executed by a host, a second region that stores user data, and a meta region, as well as a storage controller configured to control an operation of the memory. The storage controller transmits first data including the application stored in the first region to the host in response to a first request received from the host after being connected with the host, stores product registration information transmitted from the host in the meta region, resets a connection between the data storage device and the host in response to a connection reset command received from the host, and transmits second data stored in the second region to the host in response to a second request received from the host after the connection is reset.

Claims

1. A method of operating a data storage device which operates according to control of a host, the method comprising:

receiving an operating voltage from the host;

transmitting first data stored in a first region of the data storage device to the host in response to a first request transmitted by the host;

storing product registration information transmitted from the host in a meta region of the data storage device;

resetting a connection between the data storage device and the host in response to a connection reset command output from the host; and

transmitting second data stored in a second region of the data storage device to the host in response to a second request transmitted by the host after the connection is reset,

wherein the first data includes an application executed by the host.

2. The method of claim 1, wherein the first region is smaller than the second region.

3. The method of claim 1, wherein the first region is a write-protected read-only region and the second region is a user data region to which user data is written.

4. The method of claim 1, wherein the product registration information includes a product name and a password.

5. The method of claim 1, wherein the product registration information includes a product name and indicator data indicating whether a password has been set, and the indicator data includes the password when the password has been set.

6. The method of claim 1, further comprising:

receiving a write command for the first region from the host while the application is being executed by the host;

storing write data corresponding to the write command in a random access memory (RAM) included in the data storage device; and

transmitting a response to the write command to the host.

7. The method of claim 1, further comprising:

receiving a write command for the first region from the host while the application is being executed by the host;

generating a new address mapping table for write data corresponding to the write command;

storing the write data in the first region using the new address mapping table; and

transmitting a response to the write command to the host.

8. The method of claim 7, further comprising:

storing the new address mapping table in a random access memory (RAM) included in the data storage device.

9. The method of claim 1, wherein the product registration information and the connection reset command are transmitted from the host by the application executed by the host.

10. The method of claim 1, wherein the data storage device is one of a solid state drive (SSD), a universal flash storage (UFS), a universal serial bus (USB) flash drive, a multimedia card (MMC), and a hard disk drive.

11. A method of operating a data storage device which operates according to control of a host, the method comprising:

receiving an operating voltage from the host;

transmitting first data stored in a first region of the data storage device to the host in response to a first request transmitted by the host;

receiving a first password from the host;

comparing a second password stored in a meta region of the data storage device with the first password;

transmitting an acknowledgement signal to the host in response to determining that the first password matches the second password;

resetting a connection between the data storage device and the host in response to a connection reset command output from the host based on the acknowledgement signal; and

transmitting second data stored in a second region of the data storage device to the host in response to a second request transmitted by the host after the connection is reset,

wherein the first data includes an application executed by the host.

12. The method of claim 11, further comprising:

receiving a write command for the first region from the host while the application is being executed by the host;

storing write data corresponding to the write command in a random access memory (RAM) included in the data storage device; and

transmitting a response to the write command to the host.

13. The method of claim 11, further comprising:

receiving a write command for the first region from the host while the application is being executed by the host;

generating a new address mapping table for write data corresponding to the write command;

storing the write data in the first region using the new address mapping table; and

transmitting a response to the write command to the host.

14. The method of claim 13, further comprising:

storing the new address mapping table in a random access memory (RAM) included in the data storage device.

15. The method of claim 11, wherein the first password and the connection reset command are transmitted from the host by the application executed by the host.

16. A data storage device, comprising:

a memory comprising a first region configured to store an application executed by a host, a second region configured to store user data, and a meta region; and

a storage controller configured to control an operation of the memory, wherein the storage controller is further configured to;

transmit first data to the host in response to a first request received from the host upon the storage controller being connected to the host, wherein the first data includes the application stored in the first region,

store product registration information transmitted from the host in the meta region,

reset a connection between the data storage device and the host in response to a connection reset command received from the host, and

transmit second data stored in the second region to the host in response to a second request received from the host after the connection is reset.

17. The data storage device of claim 16, wherein the first region is smaller than the second region.

18. The data storage device of claim 16, wherein the first region is a write-protected read-only region and the second region is a user data region to which the user data is written.

19. The data storage device of claim 16, wherein the product registration information includes a product name and a password.

20. The data storage device of claim 16, wherein the product registration information includes a product name and indicator data indicating whether a password has been set, and the indicator data includes the password when the password has been set.