System and method for controlling user access to an electronic device

• US 9,465,929 B2
• Filed: 08/13/2014
• Issued: 10/11/2016
• Est. Priority Date: 02/23/2000
• Status: Expired due to Fees

• Current Assignee: Micron Technology, Inc.
• Original Assignee: Micron Technology, Inc.
• Inventors: McKeeth, James
• Primary Examiner(s): HOFFMAN, BRANDON S
• Application Number:
  US14/458,635
• Publication Number:
  US 20140351928A1
• Time in Patent Office: 790 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 21/31 User authentication
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 21/36 by graphic or iconic representation
• CPC Class Codes: G06F 21/40 by quorum, i.e. whereby two or more security principals are required
• CPC Class Codes: G06F 21/6218 to a system of files or objects, e.g. local or distributed file system or database
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06V 40/12 Fingerprints or palmprints

Abstract

A method and system for authenticating a user to access a computer system. The method comprises communicating security information to the computer system, and providing the computer system with an implicit input. The method further comprises determining whether the security information and implicit input match corresponding information associated with the user. The method further comprises granting the user access to the computer system in the event of a satisfactory match. When authenticating the user, the method and system consider the possibility of the user being legitimate but subject to duress or force by a computer hacker.

Claims

1. A system to grant access to an apparatus, the system comprising:

a memory configured to store data representative of a known fingerprint and data representative of a predefined password;

a fingerprint acquisition device configured to sense a fingerprint and to provide data representative of the sensed fingerprint;

a touch screen configured to receive a password and provide data representative of the received password;

a timer configured to measure a time interval between a user-entered geometric pattern when drawn by a user in a specified direction on the touch screen and at least one of the received password and the sensed fingerprint; and

a processing circuit configured to compare the data representative of the sensed fingerprint with the data representative of the known fingerprint, the processing circuit further configured to compare the data representative of the received password with the data representative of the predefined password, and the processing circuit further configured to determine whether the time interval occurs within a predetermined time period.

2. The system of claim 1 wherein the user-entered geometric pattern is a line, a circle, or a rectangle.

3. The system of claim 1 wherein the processing circuit is further configured to grant at least limited access to the apparatus when the time interval occurs within the predetermined time period.

4. The system of claim 1 further comprising an audio sensor that is configured to receive audio and provide data representative of the received audio.

5. The system of claim 4 wherein the memory is further configured to store data representative of known audio.

6. The system of claim 5 wherein the processing circuit is further configured to compare the data representative of the received audio with the data representative of the known audio.

7. The system of claim 6 wherein the timer is further configured to measure the time interval between the user-entered geometric pattern and at least one of the received password, the sensed fingerprint, and the received audio.

8. A method to grant access to an apparatus, the method comprising:

when a fingerprint of a user is sensed by a fingerprint acquisition device, comparing fingerprint signals representative of the fingerprint sensed by the fingerprint acquisition device with data stored in memory representative of a known fingerprint;

when the user enters a password, comparing signals representative of the user-entered password with data stored in the memory representative of a predefined password; and

comparing a time elapsed between the user drawing a geometric pattern in a specified direction on a touch screen and at least one of the user entering the password and the fingerprint acquisition device sensing the fingerprint of the user with a predetermined period of time.

9. The method of claim 8 wherein the user-drawn geometric pattern is a line, a circle, or a rectangle.

10. The method of claim 8 further comprising when the time elapsed between the user drawing the geometric pattern and the at least one of the user entering the password and the fingerprint acquisition device sensing the fingerprint of the user occurs within the predetermined period of time, granting access to the apparatus.

11. The method of claim 8 further comprising allowing access to the apparatus on confirming that the time elapsed occurred within the predetermined period of time and identifying at least one of the user-entered password and the fingerprint sensed by the fingerprint acquisition device.

12. The method of claim 8 further comprising when audio from the user is sensed by an audio sensor, comparing signals representative of the audio sensed by the audio sensor with data stored in the memory representative of known audio.

13. The method of claim 12 further comprising comparing the time elapsed between the user drawing the geometric pattern and at least one of the user entering the password, the fingerprint acquisition device sensing the fingerprint, and the audio sensor sensing the audio with the predetermined period of time.

14. The method of claim 13 further comprising allowing access to the apparatus at least in part on confirming that the time elapsed occurred within the predetermined period of time and identifying at least one of the user-entered password, the fingerprint sensed by the fingerprint acquisition device, and the audio sensed by the audio sensor.

15. A method to access an apparatus having a fingerprint acquisition device and a touch screen, the method comprising:

when sensing a fingerprint of a user with the fingerprint acquisition device, comparing fingerprint signals representative of the sensed fingerprint with data stored in the apparatus representing a known fingerprint;

when receiving a user-entered password at the touch screen, comparing signals representative of the received password with data stored in the apparatus representing a predefined password; and

allowing access to the apparatus at least in part on confirming that a time elapsed between a geometric pattern drawn by the user in a specified direction on the touch screen and at least one of the received password and the sensed fingerprint occurred within a predetermined period of time.

16. The method of claim 15 wherein the user-drawn geometric pattern is a line, a circle, or a rectangle.

17. The method of claim 15 further comprising identifying at least one of the received password and the sensed fingerprint.

18. The method of claim 15 further comprising when the at least one of the received password and the sensed fingerprint is identified, granting limited access to the apparatus.

19. The method of claim 15 further comprising when sensing audio from the user with an audio sensor, comparing signals representative of the sensed audio with data stored in the apparatus representing known audio.

20. The method of claim 19 further comprising allowing access to the apparatus at least in part on confirming that the time elapsed between the user-drawn geometric pattern and at least one of the received password, the sensed fingerprint, and the sensed audio occurred within the predetermined period of time.