Portable data storage device

• US 8,209,462 B2
• Filed: 10/29/2007
• Issued: 06/26/2012
• Est. Priority Date: 02/21/2000
• Status: Expired due to Term

• Current Assignee: Trek 2000 International Limited (Trek Technology Singapore PTE Limited)
• Original Assignee: Trek 2000 International Limited (Trek Technology Singapore PTE Limited)
• Inventors: Cheng, Chong Seng, Poo, Teng Pin
• Primary Examiner(s): Thai, Tuan V.
• Application Number:
  US11/926,505
• Publication Number:
  US 20080059660A1
• Time in Patent Office: 1,702 Days
• Field of Search: 711/104, 711/1, 711/100, 711/103, 711154-175
• US Class Current: 711/103
• CPC Class Codes: G06F 21/12 Protecting executable software
• CPC Class Codes: G06F 21/31 User authentication
• 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 21/79 in semiconductor storage media, e.g. directly-addressable memories
• CPC Class Codes: G06F 21/85 interconnection devices, e.g. bus-connected or in-line devices
• CPC Class Codes: G06F 2221/2141 Access rights, e.g. capability lists, access control lists, access tables, access matrices
• CPC Class Codes: G06F 3/0601 Interfaces specially adapted for storage systems
• CPC Class Codes: G06F 3/0605 by facilitating the interaction with a user or administrator
• CPC Class Codes: G06F 3/0634 by changing the state or mode of one or more devices
• CPC Class Codes: G06F 3/0664 at device level, e.g. emulation of a storage device or system
• CPC Class Codes: G06F 3/0679 Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
• CPC Class Codes: G11C 16/102 External programming circuits, e.g. EPROM programmers; In-circuit programming or reprogramming; EPROM emulators
• CPC Class Codes: G11C 16/22 Safety or protection circuits preventing unauthorised or accidental access to memory cells

Abstract

A portable data storage device (10) includes a universal serial bus (USB) coupling device (1) and an interface device (2) is coupled to the USB coupling device (1). The portable data storage device (10) also includes a memory control device (3) and a non-volatile solid-state memory device (4). The memory control device (3) is coupled between the interface device (2) and the memory device (4) to control the flow of data from the memory device (4) to the USB coupling device (1).

Claims

1. A portable data storage device comprising:

a Universal Serial Bus (USB) plug capable of being directly coupled to a USB socket of a host device without an intervening cable;

a non-volatile solid-state memory having a memory space that is at least as much as the memory space of a magnetic disk or an optical disk; and

a controller coupled to the non-volatile solid-state memory, the controller configured to control storage of data in the non-volatile solid-state memory, the data including at least user data that is not authorization data, the data being received from the host device via the USB plug,

the controller further configured to divide the memory space of the non-volatile solid-state memory into a plurality of zones, wherein at least one of the plurality of zones has a first user-related attribute and at least one other of the plurality of zones has a second user-related attribute different than the first user-related attribute.

2. The portable data storage device of claim 1, wherein the controller is further configured to control retrieval of data from the non-volatile solid-state memory.

3. The portable data storage device of claim 1, wherein the controller is a micro-controller.

4. The portable data storage device of claim 1, wherein the non-volatile solid-state memory is a flash memory.

5. The portable data storage device of claim 1, wherein the non-volatile solid-state memory is configured to store a software application.

6. The portable data storage device of claim 1, wherein at least one of the plurality of zones is password-protectable.

7. A portable data storage device comprising:

a Universal Serial Bus (USB) plug integrated into the portable data storage device without an intervening cable, the USB plug capable of being directly coupled to a USB socket of a host device;

a non-volatile solid-state memory having a memory space that is at least as much as the memory space of a magnetic disk or an optical disk; and

a controller coupled to the non-volatile solid-state memory, the controller configured to control writing of data received from the host device via the USB plug to the non-volatile solid-state memory, wherein the data includes at least user data that is not authorization data,

the controller further configured to divide the memory space of the non-volatile solid-state memory into a first zone and a second zone, wherein the first zone has a first user-related attribute and the second zone has a second user-related attribute different than the first user-related attribute.

8. The portable data storage device of claim 7, wherein the controller is further configured to control retrieval of data from the non-volatile solid-state memory.

9. The portable data storage device of claim 7, wherein the controller is a micro-controller.

10. The portable data storage device of claim 7, wherein the non-volatile solid-state memory is a flash memory.

11. The portable data storage device of claim 7, wherein the non-volatile solid-state memory is configured to store a software application.

12. The portable data storage device of claim 7, wherein at least one of the first zone and the second zone is password-protectable.

13. A portable data storage device comprising:

a Universal Serial Bus (USB) plug integrated into the portable data storage device without an intervening cable such that the portable data storage device is capable of being directly coupled to a USB socket of a host device;

an interface coupled to the USB plug;

a controller coupled to the interface; and

a non-volatile solid-state memory coupled to the controller, the non-volatile solid-state memory having a memory space that is at least the same as the memory space of a magnetic disk or an optical disk;

the controller configured to control storage of data received via the USB plug from the host device in the non-volatile solid-state memory, the data including at least user data that is not authorization data,

the controller further configured to divide the memory space of the non-volatile solid-state memory into at least two zones, wherein one of the at least two zones has a user-related attribute and another of the at least two zones has a second user-related attribute different than the first user-related attribute.

14. The portable data storage device of claim 13, wherein the controller is further configured to control retrieval of data from the non-volatile solid-state memory.

15. The portable data storage device of claim 13, wherein the controller is a micro-controller.

16. The portable data storage device of claim 13, wherein the non-volatile solid-state memory is a flash memory.

17. The portable data storage device of claim 13, wherein the non-volatile solid-state memory is configured to store a software application.

18. The portable data storage device of claim 13, wherein at least one of the at least two zones is password-protectable.