Electronic library for managing data on removable storage devices

• US 8,661,185 B2
• Filed: 02/21/2007
• Issued: 02/25/2014
• Est. Priority Date: 07/12/2006
• Status: Active Grant

• Current Assignee: SanDisk Technologies LLC (Western Digital Corporation)
• Original Assignee: Sandisk Technologies Incorporated (Western Digital Corporation)
• Inventors: Thorp, Tyler, Haukness, Brent, Hutton, Henry
• Primary Examiner(s): Parikh, Kalpit
• Application Number:
  US11/677,388
• Publication Number:
  US 20080013411A1
• Time in Patent Office: 2,561 Days
• Field of Search: 711/111, 711/103, 711/115
• US Class Current: 711/103
• CPC Class Codes: G06F 3/0607 by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
• 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: G06F 3/0688 Non-volatile semiconductor memory arrays

Abstract

An electronic library for managing data from removable data storage devices is described. The electronic library may have a stand-alone housing with a plurality of receptacles, at least two of the receptacles sized to connect with at least a first type of removable data storage device. An interface positioned on the housing permits concurrent access to removable data storage devices connected with the plurality of receptacles. A data access module in the housing may be configured to emulate a single removable data storage device containing data folders with corresponding to each removable data storage device. A refresh module in the housing may be configured to refresh each memory address of a removable data storage device in communication with one of the plurality of receptacles so that data integrity may be preserved.

Claims

1. An electronic library for managing a plurality of removable data storage devices, the electronic library comprising:

a housing having a plurality of receptacles, wherein each of the receptacles is sized to connect with one or more types of removable data storage devices;

a host communication interface configured to removably connect the electronic library as a peripheral device with a host electronic device, the host electronic device being external to the housing;

memory interface circuitry configured to detect the plurality of removable data storage devices via the receptacles; and

a data access module positioned in the housing and in communication with the memory interface circuitry, the data access module configured to;

in response to the memory interface circuitry detecting one or more of the plurality of removable data storage devices, for each of the plurality of removable storage devices;

communicate with a respective removable data storage device in order to obtain directory information from the respective removable data storage device;

assign a folder name to the respective removable data storage device; and

assign the directory information within the folder name for the respective removable data storage device;

emulate to the host electronic device a single removable data storage peripheral device including the assigned folder names and the directory information, wherein each assigned folder name identifies the respective removable data storage device in order to present the single removable data storage peripheral device to the host electronic device as a single drive and to present the plurality of removable data storage devices to the host electronic device as the assigned folder names within the single drive so that plurality of removable data storage devices are consolidated into the single drive rather than separate drives; and

send, via the host communication interface, the emulation of the single removable data storage peripheral device to the host electronic device,

wherein the electronic library is connected to a second electronic library in a series daisy chain;

wherein the electronic library is in communication with the host electronic device without intervening electronic libraries;

wherein the second electronic library is in communication with the host electronic device through the electronic library; and

wherein the data access module is configured to represent to the host electronic device the second electronic library as a separate folder and represent one or more data storage devices connected to the second electronic library as sub-folders to the separate folder.

2. The electronic library of claim 1, wherein the data access module comprises a computer-readable memory comprising processor-executable instructions for configuring a processor to identify the electronic library to the host electronic device as the single removable data storage peripheral device, and to identify each removable data storage device in communication with the receptacles as the respective assigned folder name associated with the single removable data storage peripheral device.

3. The electronic library of claim 1, wherein the data access module comprises a memory positioned in the housing, configured to receive-data from the plurality of removable data storage devices connected with the receptacles, and configured to represent the data as contained within one of the assigned folder names.

4. The electronic library of claim 3, wherein the memory is further configured to delete the data received from a particular one of the plurality of removable data storage devices upon removal of the particular one of the plurality of removable data storage devices from the electronic library.

5. The electronic library of claim 1, wherein the one or more types of removable data storage devices comprises a non-volatile memory.

6. The electronic library of claim 5, wherein the non-volatile memory comprises one of a Secure Digital (SD), CompactFlash (CF), Memory Stick (MS), MultiMediaCard (MMC), xD-Picture Card (xD) or SmartMedia (SM) memory card.

7. The electronic library of claim 1, further comprising a data access indicator associated with the housing, the data access indicator configured to identify a particular removable data storage device when data from the particular removable data storage device is being accessed.

8. The electronic library of claim 7, wherein the data access indicator comprises a visual indicator.

9. The electronic library of claim 8, wherein the visual indicator comprises an alphanumeric display.

10. The electronic library of claim 8, wherein the visual indicator comprises a plurality of light emitting devices, each light emitting device positioned adjacent a respective one of the plurality of receptacles.

11. The electronic library of claim 1, wherein the host communication interface comprises an electronic library-host device interface associated with the housing, the electronic library-host device interface configured to permit communication between the electronic library and the host electronic device.

12. The electronic library of claim 11, wherein the electronic library-host device interface comprises a USB interface.

13. The electronic library of claim 1, wherein the electronic library is configured as a peripheral device separate from the host electronic device.

14. The electronic library of claim 1, wherein the host electronic device is a computer.

15. The electronic library of claim 1, wherein the memory interface circuitry comprises a memory input/output controller configured to mediate data exchanges with each of the plurality of data storage devices;

and

further comprising a host input/output controller in communication with the data access module and configured to communicate with the host electronic device via the host communication interface.

16. The electronic library of claim 1, wherein the electronic library is configured to receive power from the host electronic device via the host communication interface.

17. The electronic library of claim 1, wherein the data access module is further configured to:

receive an instruction from the host electronic device to modify at least one assigned folder name, the instruction generated by the host electronic device operating system; and

in response to receiving the instruction, modify the at least one assigned folder name based on the instruction.

18. The electronic library of claim 17, wherein the data access module is further configured to instruct a respective data storage device to modify at least one folder name based on the instruction.

19. The electronic library of claim 18, wherein the data access module is further configured to transmit the assigned folder names and the assigned directory information to the host electronic device.

20. A method for managing a plurality of removable data storage devices, the method comprising:

in a peripheral device;

receiving via receptacles of a removable data storage device reader a plurality of removable data storage devices;

detecting one or more of the plurality of removable data storage devices received via the receptacles;

in response to detecting the one or more of the plurality of removable data storage devices;

communicating with a respective removable data storage device in order to obtain directory information from the respective removable data storage device;

assigning a folder name to the respective removable data storage device; and

assigning the directory information within the folder name for the respective removable data storage device;

emulating to a host electronic device a single removable data storage peripheral device including the assigned folder names and the directory information, the host electronic device being external to a housing of the removable data storage device reader; and

sending, via a host communication interface, the emulation of the single removable data storage peripheral device to the host electronic device,

wherein each assigned folder name identifies the respective removable data storage device in order to present the single removable data storage peripheral device to the host electronic device as a single drive and to present the plurality of removable data storage devices to the host electronic device as the assigned folder names within the single drive so that plurality of removable data storage devices are consolidated into the single drive rather than separate drives,

wherein the peripheral device comprises an electronic library,

wherein the electronic library is connected to a second electronic library in a series daisy chain

wherein the electronic library is in communication with the host electronic device without intervening electronic libraries,

wherein the second electronic library is in communication with the host electronic device through the electronic library, and

wherein the second electronic library is represented to the host electronic device as a separate folder and one or more data storage devices connected to the second electronic library are represented to the host electronic device as sub-folders to the separate folder.

21. The method of claim 20, wherein emulating to the host electronic device the single removable data storage peripheral device comprises creating a directory table in a memory within the removable data storage device reader, the directory table including the directory information from each of the plurality of removable data storage devices.

22. The method of claim 20, wherein emulating to the host electronic device the single removable data storage peripheral device comprises copying all data from each of the plurality of removable data storage devices to a memory within the removable data storage device reader,

23. The method of claim 20, wherein emulating to the host electronic device the single removable data storage peripheral device comprises representing a single drive designator to the host electronic device regardless of a number of removable data storage devices currently attached to the removable data storage device reader.

24. The method of claim 20, wherein the plurality of removable data storage devices comprise non-volatile memory.

25. The method of claim 24, wherein the non-volatile memory comprises a Secure Digital (SD), CompactFlash (CF), Memory Stick (MS), MultiMediaCard (MMC), xD-Picture Card (xD) or SmartMedia (SM) memory card.

26. The method of claim 20, further comprising identifying a specific one of the plurality of removable data storage devices with a visual indicator on the removable data storage device reader when data from the specific one of the plurality of removable data storage devices is accessed.

27. The method of claim 26, wherein identifying comprises displaying information on an alphanumeric display.

28. The method of claim 27, wherein displaying information comprises displaying a name of the specific one of the plurality of removable data storage devices.

29. The method of claim 27, wherein displaying information comprises displaying one of a file name or available memory of the specific one of the plurality of removable data storage devices.

30. The method of claim 20, wherein the peripheral device is separate from the host electronic device;

and

wherein emulating to the host electronic device is via a removable data storage device reader-host device interface.

31. The method of claim 20, further comprising, in the peripheral device, receiving power from the host electronic device.

32. The method of claim 20, further comprising:

receiving an instruction from the host electronic device to modify at least one assigned folder name, the instruction generated by the host electronic device operating system; and

in response to receiving the instruction, modifying the at least one assigned folder name based on the instruction.

33. The method of claim 32, further comprising instructing a respective data storage device to modify at least one folder name based on the instruction.

34. The method of claim 33, further comprising transmitting the assigned folder names and the assigned directory information to the host electronic device.