IP Library Granted Patent US 8,612,671
Granted Patent B2
US 8,612,671 · App. 13/419,964 · Granted Dec 17, 2013

Removable devices

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,612,671
App. No.
13/419,964
Granted
Dec 17, 2013
Kind
B2
Abstract

Methods and removable devices are provided. Some such removable devices may include a secure partition and a public partition. The secure partition is not accessible by an operating system of a host for some embodiments. The secure partition is configured to store information so that formatting/reformatting does not alter the stored information for other embodiments.

Claims (39)

1. A removable device comprising:

a secure partition; and

a public partition;

wherein the secure partition is not accessible by an operating system of a host; and

wherein the removable device is caused to be known as a non-removable device to the operating system of the host.

2. The removable device of claim 1 , wherein the secure partition is only accessible and/or readable by use of vendor unique commands.

3. The removable device of claim 1 , wherein the removable device prevents the operating system of the host from assigning a drive indicator to the removable device.

4. A removable device comprising:

a secure partition;

a public partition; and

a master boot record that is protected using vendor unique commands only once the removable device is partitioned to include the secure partition;

wherein the secure partition is configured to store information so that formatting/reformatting does not alter the stored information.

5. The removable device of claim 4 , wherein the secure partition is marked as hidden.

6. The removable device of claim 5 , wherein the secure partition is marked as hidden by an attribute in a master boot record of the removable device.

7. A removable device comprising:

a secure partition;

a public partition; and

a master boot record that is read-only once the device is partitioned;

wherein the secure partition is configured to store information so that formatting/reformatting does not alter the stored information.

8. The method of claim 7 , wherein the read-only master boot record acts to prevent unauthorized deletion of the secure partition.

9. The removable device of claim 7 , wherein when the master boot record is read-only once the device is partitioned, the master boot record is readable using vendor unique commands only.

10. The removable device of claim 7 , wherein the master boot record maintains information about partitioning of the removable device.

11. The removable device of claim 10 , wherein the information about the partitioning of the removable device maintained by the master boot record is in a form of a memory map.

12. The removable device of claim 4 , further comprising a reserve memory area configured to store encrypted information only accessible using vendor unique commands.

13. A method of creating a partition in a removable device, comprising:

authenticating a user;

receiving a size to be allocated to the partition;

programming a master boot record with information regarding the partition;

prompting the user for an input indicative of whether the partition is a secure partition;

creating a secure partition having the size allocated thereto if the input indicates that the partition is to be a secure partition; and

protecting the master boot record using only vendor unique commands if the partition is a secure partition.

14. The method of claim 13 , further comprising making the master boot record read-only if the partition is a secure partition.

15. The method of claim 14 , wherein making the master boot record read-only acts to prevent unauthorized deletion of the secure partition.

16. The method of claim 14 , wherein the read-only master boot record is readable using vendor unique commands only.

17. The method of claim 13 , further comprising preventing an operating system from having the capability to assign a drive indicator to the partition if the partition is a secure partition.

18. The method of claim 13 , wherein the user is authenticated either by fingerprint verification or password verification.

19. The method of claim 13 , further comprising changing the master boot record to reflect the partition if the partition is a secure partition before protecting the master boot record.

20. The method of claim 13 , further comprising marking the secure partition as hidden.

21. The method of claim 13 , wherein the size to be allocated to the partition is received from the user.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded Nov 12, 2019
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: MICRON TECHNOLOGY, INC.; MICRON SEMICONDUCTOR PRODUCTS, INC.
Reel/Frame 051028/0001 →
RELEASE OF SECURITY INTEREST Recorded Oct 9, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
To: MICRON TECHNOLOGY, INC.
Reel/Frame 050937/0001 →
RELEASE OF SECURITY INTEREST Recorded Aug 23, 2018
From: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: MICRON TECHNOLOGY, INC.
Reel/Frame 047243/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REPLACE ERRONEOUSLY FILED PATENT #7358718 WITH THE CORRECT PATENT #7358178 PREVIOUSLY RECORDED ON REEL 038669 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTEREST. Recorded Jun 8, 2017
From: MICRON TECHNOLOGY, INC.
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 043079/0001 →
PATENT SECURITY AGREEMENT Recorded Jun 2, 2016
From: MICRON TECHNOLOGY, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
Reel/Frame 038954/0001 →
SECURITY INTEREST Recorded May 12, 2016
From: MICRON TECHNOLOGY, INC.
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 038669/0001 →
MERGER Recorded Jun 11, 2013
From: LEXAR MEDIA, INC.
To: MICRON TECHNOLOGY, INC.
Reel/Frame 030591/0277 →