System and method for locking and unlocking access to an electronic device

• US 8,378,782 B2
• Filed: 01/13/2012
• Issued: 02/19/2013
• Est. Priority Date: 12/08/2006
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Orr, Kevin
• Primary Examiner(s): Mehmood, Jennifer
• Assistant Examiner(s): GIRMA, FEKADESELASS
• Application Number:
  US13/350,238
• Publication Number:
  US 20120117643A1
• Time in Patent Office: 403 Days
• Field of Search: None
• US Class Current: 340/5.3
• CPC Class Codes: G08C 19/00 Electric signal transmission systems G08C17/00 takes precedence

Abstract

The disclosure relates to a system and method for unlocking and unlocking access to a device. The system comprises: a graphical user interface (GUI) module providing instructions to a microprocessor operating on the electronic device and an access management module providing instructions to the microprocessor. The GUI module provides instructions to generate on a display of the electronic device an interface for entry and modification of a tap pattern used to change an access state of the electronic device; and process inputs from an input device through the interface that select described levels of movement and described locations for expected tap signals for the tap pattern. The access management module provides instructions to receive signals from a monitoring circuit in the electronic device that processes a tap signal received from an accelerometer in the electronic device; and determine whether the tap signal completes a match for the tap pattern.

Claims

1. An access management system for an electronic device, comprising:

a non-transitory computer-readable memory including computer processing instructions for a microprocessor on the electronic device, the computer-readable memory comprising

a graphical user interface (GUI) module providing instructions to the microprocessor to

generate on a display of the electronic device an interface for entry and modification of a tap pattern used to change an access state of the electronic device; and

process inputs from an input device on the electronic device through the interface that select described levels of movement and described locations for expected tap signals for the electronic device for the tap pattern including a first level of movement and a second level of movement, where the second level of movement is larger than the first level of movement; and

an access management module providing instructions to the microprocessor to receive signals from a monitoring circuit in the electronic device that processes a tap signal received from an accelerometer in the electronic device; and

determine whether the tap signal completes a match for the tap pattern by utilizing a first peak value in the tap signal to compare against the tap pattern; and

disregarding a second peak value following the first peak value in the tap signal for comparing against the tap pattern.

2. The access management system for an electronic device as claimed in claim 1, wherein when determining whether the tap signal completes the match, the access management module further provides instructions to the microprocessor to:

utilize one or more of a location, a magnitude and a time spacing characteristic of the tap signal compared to a previously received tap signal to determine whether the tap signal completes the match.

3. The access management system for an electronic device as claimed in claim 1, wherein the access management module further comprises a signal filter to distinguish the tap signal from other movements detected by the accelerometer.

4. The access management system for an electronic device as claimed in claim 3, wherein the access management module further provides instructions to the microprocessor to disregard the tap signal if the tap signal exceeds a certain duration.

5. The access management system for an electronic device as claimed in claim 1, wherein:

the tap pattern is a locking pattern; and

the access management module further provides instructions to the microprocessor to change the access state to a locked state if the tap signal completes the match, the locked state prohibiting access to at least one application operating on the electronic device.

6. The access management system for an electronic device as claimed in claim 1, wherein:

the tap pattern is an unlocking pattern; and

the access management module further provides instructions to the microprocessor to change the access state to an unlocked state if the tap signal completes the match, the unlocked state allowing access to at least one application operating on the electronic device.

7. The access management system for an electronic device as claimed in claim 6, wherein the access management module further provides instructions to the microprocessor to provide for subsequent entry of a text password as part of a subsequent access request to enter a further access state of the electronic device providing access to at least one additional application operating on the electronic device.

8. The access management system for an electronic device as claimed in claim 1, wherein the tap pattern comprises at least two tap signals at first and second locations on a case of the electronic device.

9. The access management system for an electronic device as claimed in claim 1, wherein the described levels of movement include at least one of a light tap level, a medium tap level and any tap level.

10. The access management system for an electronic device as claimed in claim 1, wherein the described locations include at least one of a back of the electronic device, a front of the electronic device and a side of the electronic device.

11. A method for controlling access to applications operating on an electronic device, comprising:

generating a graphical user interface (GUI) providing a screen on a display of the electronic device that provides an interface for entry and modification of a tap pattern used to change an access state of the electronic device;

through the GUI, processing inputs from an input device on the electronic device that select described levels of movement and described locations for expected tap signals for the electronic device for the tap pattern, including a first level of movement and a second level of movement, where the second level of movement is larger than the first level of movement;

receiving signals from a monitoring circuit in the electronic device that processes tap signals from an accelerometer in the electronic device; and

determining whether the tap signal completes a match for the tap pattern by utilizing a first peak value in the tap signal to compare against the tap pattern; and

disregarding a second peak value following the first peak value in the tap signal for comparing against the tap pattern.

12. The method for controlling access to applications operating on an electronic device as claimed in claim 11, wherein the determining whether the tap signal completes the match comprises:

filtering the tap signal to isolate the tap signal from signals when the electronic device is being moved while it is being tapped.

13. The method for controlling access to applications operating on an electronic device as claimed in claim 12, wherein the determining whether the tap signal completes the match comprises:

disregarding the tap signal if the tap signal exceeds a certain duration.

14. The method for controlling access to applications operating on an electronic device as claimed in claim 11, further comprising:

changing the access state to a locked state if the tap signal completes the match, the locked state prohibiting access to at least one application operating on the electronic device.

15. The method for controlling access to applications operating on an electronic device as claimed in claim 11, further comprising:

changing the access state to an unlocked state if the tap signal completes the match, the unlocked state allowing access to at least one application operating on the electronic device.

16. The method for controlling access to applications operating on an electronic device as claimed in claim 15, further comprising:

providing subsequent entry of a text password as part of a subsequent access request to enter a further access state of the electronic device providing access to at least one additional application operating on the electronic device.

17. The method for controlling access to applications operating on an electronic device as claimed in claim 11, wherein the tap pattern comprises a series of positive and negative vibrating, degrading pulses.

18. The method for controlling access to applications operating on an electronic device as claimed in claim 11, wherein the tap pattern comprises at least two tap signals at first and second locations on a case of the electronic device.