Image rescue

• US 9,213,606 B2
• Filed: 04/20/2012
• Issued: 12/15/2015
• Est. Priority Date: 02/22/2002
• Status: Active Grant

• Current Assignee: Micron Technology, Inc.
• Original Assignee: Micron Technology, Inc.
• Inventors: Galbo, Neal Anthony, Iman, Berhanu, Le, Ngon
• Primary Examiner(s): CAO, DIEM K
• Application Number:
  US13/451,594
• Publication Number:
  US 20120204192A1
• Time in Patent Office: 1,334 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 11/1435 using file system or storage system metadata
• CPC Class Codes: G06F 3/0659 Command handling arrangements, e.g. command buffers, queues, command scheduling
• CPC Class Codes: G06F 3/0673 Single storage device

Abstract

An image rescue system includes an application program for communication with a mass storage device, the application program being in communication with an operating system layer for accessing the mass storage device to read and write information. The image rescue system further includes a device driver in communication with the application program, the operating system layer and the mass storage device, the device driver for allowing the application program to access the mass storage device to read and write information by bypassing the operating system layer, the device driver for communicating with the mass storage device to allow the application program to access information in the mass storage device considered damaged by the operating system layer, the damaged information being inaccessible to the operating system layer, wherein the image rescue system accesses the mass storage device to retrieve and recover information accessible and inaccessible to the operating system layer.

Claims

1. An image rescue system comprising:

a personal computer having an operating system layer and in communication with a device through a device driver, wherein the device driver has a driver input/output interface for communication with an application program through the operating system layer, and an access interface for providing the application program direct access to the device driver while bypassing the operating system layer;

wherein the driver input/output interface is configured to facilitate communicating from the application program to the device using a first set of commands available to the operating system layer;

wherein the access interface is configured to facilitate communicating from the application program to the device using a second set of commands not available to the operating system layer; and

wherein the second set of commands facilitate access to information of the device considered damaged by the operating system layer, the information considered damaged by the operating system layer being inaccessible using the first set of commands.

2. The image rescue system of claim 1, further including a hardware interface layer in communication with the access interface.

3. The image rescue system of claim 2, further including a hardware bus coupled to cause communication between the device and the hardware interface layer.

4. The image rescue system of claim 1, wherein the device is a compact flash reader device.

5. The image rescue system of claim 1, wherein the device is a digital photo reader.

6. The image rescue system of claim 1, wherein the access interface is configured to provide access to information in the device that is considered damaged by the operating system layer.

7. The image rescue system of claim 1, wherein the access interface is configured to provide access to information in the device without using formatting information of the operating system layer.

8. The image rescue system of claim 1, wherein communication between the application program and the device driver using the access interface comprises different commands than communication between the application program and the device driver using the driver input/output interface.

9. An image rescue system comprising:

an operating system layer in communication with an application program;

a device driver having a first interface for communicating with the application program through the operating system layer, and having a second interface for communicating with the application program without assistance from programming facilities of the operating system layer; and

a hardware bus configured for communicating between the device driver and a mass storage data device;

wherein the first interface is configured to facilitate communicating from the application program to the mass storage data device using a first set of commands available to the operating system layer; and

wherein the second interface is configured to facilitate communicating from the application program to the mass storage data device using a second set of commands in addition to the first set of commands, wherein the second set of commands is not available to the operating system.

10. The image rescue system of claim 9, wherein the second interface of the driver is configured to facilitate access to areas of the mass storage device that are considered damaged by the operating system layer.

11. The image rescue system of claim 9, further comprising the mass storage data device.

12. The image rescue system of claim 11, wherein the mass storage data device is a compact flash card.

13. The image rescue system of claim 9, wherein the application program is configured to access the mass storage data device at a logical device level when communicating with the mass storage data device through the first interface of the device driver, and to access the mass storage data device at a physical device level when communicating with the mass storage data device through the second interface of the device driver.

14. The image rescue system of claim 9, wherein the application program is configured to access the mass storage data device through the second interface of the device driver even if the operating system layer does not recognize the mass storage data device as a valid operating system formatted storage device.

15. The image rescue system of claim 9, wherein the hardware bus is selected from the group consisting of USB, PCMCIA, IDE, mass storage interface, fire wire and blue tooth buses.

16. The image rescue system of claim 9, wherein the image rescue system is a personal computer.

17. The image rescue system of claim 9, wherein the second interface is configured to provide access to information in the mass storage data device without using formatting information of the operating system layer.

18. The image rescue system of claim 9, wherein functions and procedures within the second interface do not interfere with normal interaction between the operating system layer and the device driver.