Method and handheld electronic device for detecting and providing notification of a device drop

• US 8,044,818 B2
• Filed: 01/27/2009
• Issued: 10/25/2011
• Est. Priority Date: 01/27/2009
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Arastafar, Martin, Tysowski, Piotr Konrad
• Primary Examiner(s): HUNNINGS, TRAVIS R
• Application Number:
  US12/360,153
• Publication Number:
  US 20100188243A1
• Time in Patent Office: 1,001 Days
• Field of Search: 340/669, 340/665, 340/686.1, 455/550.1
• US Class Current: 340/669
• CPC Class Codes: G01P 15/00 Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
• CPC Class Codes: G08B 21/00 Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
• CPC Class Codes: G08B 21/24 Reminder alarms, e.g. anti-loss alarms
• CPC Class Codes: H04M 1/66 with means for preventing unauthorised or fraudulent calling verifying user identity or authority in secret or secure digital communications H04L9/32
• CPC Class Codes: H04M 2250/12 including a sensor for measuring a physical value, e.g. temperature or motion telephones including GPS signal receivers H04M2250/10
• CPC Class Codes: H04M 2250/52 including functional features of a camera constructional features concerning the integration of cameras in portable phones H04M1/0264

Abstract

A method and handheld electronic device for detecting and providing notification of a device drop are provided. In accordance with one embodiment, there is provided a method for detecting and providing notification of a device drop on an electronic device, comprising: measuring acceleration using an accelerometer of the electronic device; monitoring for and detecting freefall events in accordance with the acceleration measurements; and issuing an alert when a freefall event is detected.

Claims

1. A method for detecting and providing notification of a device drop on an electronic device, comprising:

measuring acceleration using an accelerometer of the electronic device;

monitoring for and detecting freefall events in accordance with the acceleration measurements;

determining whether the electronic device is out of a holster; and

issuing an alert when a freefall event is detected and the electronic device is out of the holster.

2. The method of claim 1, wherein the alert is issued when the electronic device is out of the holster and the freefall event is detected within a predetermined duration of the electronic device being out of the holster.

3. The method of claim 1, further comprising:

capturing a series of two or more images using a digital camera of the electronic device when a freefall event is detected;

comparing the images in the series to determine a change in a reference value of the images; and

determining whether the reference value is greater than or equal to a predetermined threshold;

wherein the alert is issued when the freefall event is detected and the reference value is greater than or equal to the predetermined threshold.

4. The method of claim 1, further comprising monitoring for and detecting inactivity of the electronic device;

wherein the alert is issued when the freefall event is detected and a predetermined duration of inactivity of the device is detected.

5. The method of claim 1, further comprising monitoring for and detecting an impact of the electronic device in accordance with the acceleration measurements;

wherein the alert is issued when impact of the electronic device is detected within a predetermined duration of the detection of the freefall event.

6. The method of claim 1, wherein the alert comprises one or any combination of a visual, audio and physical indication.

7. The method of claim 1, wherein the electronic device is a mobile communication device, and the alert comprises sending an electronic communication to a designated address over a wireless communication link.

8. The method of claim 7, further comprising:

determining the location of the electronic device; and

generating the electronic communication to include the location of the electronic device.

9. The method of claim 8, further comprising:

generating a map of the device location using a mapping application on the electronic device, and generating the electronic communication to include the map and location of the electronic device.

10. The method of claim 8, further comprising:

capturing a digital image with a camera of the electronic device, and generating the electronic communication to include the digital image.

11. The method of claim 1, further comprising:

initiating a locked mode of the electronic device when the freefall event is detected.

12. The method of claim 11, wherein the locked mode is initiated within a predetermined duration of the detection of a freefall event.

13. The method of claim 1, further comprising:

automatically performing a data security action within a predetermined duration of the detection of a freefall event.

14. A handheld electronic device, comprising:

a controller for controlling the operation of the device;

an accelerometer connected to the controller for measuring acceleration;

the controller being configured for monitoring for and detecting freefall events in accordance with the acceleration measurements;

the controller being configured for determining whether the electronic device is out of a holster; and

the controller being configured for issuing an alert when a freefall event is detected and the electronic device is out of the holster.

15. The device of claim 14, further comprising a digital camera connected to the controller, wherein the controller is further configured to capture a series of two or more images using the digital camera when a freefall event is detected, compare the images in the series to determine a change in a reference value of the images, determine whether the reference value is greater than or equal to a predetermined threshold, and issue the alert when the freefall event is detected and the reference value is greater than or equal to the predetermined threshold.

16. The device of claim 14, further comprising a wireless communication subsystem, wherein the alert is an electronic communication sent to a designated address over the wireless communication subsystem.

17. The device of claim 16, further comprising a GPS subsystem connected to the controller for determining the location of the electronic device;

wherein the controller is configured to generate the electronic communication to include the location of the electronic device.

18. The device of claim 17, wherein the controller is configured to generate a map of the device location using a mapping application on the electronic device, and wherein the controller is configured to generate the electronic communication to include the map and location of the electronic device.

19. The device of claim 16, further comprising a digital camera connected to the controller, wherein the controller is configured to capture a digital image with the camera and generating the electronic communication to include the digital image.

20. The device of claim 14, wherein the controller is configured to initiate a locked mode of the electronic device when the freefall event is detected.

21. A method for detecting and providing notification of a device drop on an electronic device, comprising:

measuring acceleration using an accelerometer of the electronic device;

monitoring for and detecting freefall events in accordance with the acceleration measurements; and

capturing a series of two or more images using a digital camera of the electronic device when a freefall event is detected;

comparing the images in the series to determine a change in a reference value of the images;

determining whether the reference value is greater than or equal to a predetermined threshold; and

issuing an alert when a freefall event is detected and the reference value is greater than or equal to the predetermined threshold.