ACCELERATION-BASED THEFT DETECTION SYSTEM FOR PORTABLE ELECTRONIC DEVICES
First Claim
1. A computer readable memory including at least computer instructions for directing an electronic system to provide theft protection, comprising:
- a first set of computer instructions to acquire an acceleration signal corresponding to an acceleration of the electronic system, the acceleration signal having frequencies characteristic of movement of the device;
a second set of computer instructions to process the acceleration signal so as to isolate the frequencies characteristic of movement of the device;
a third set of computer instructions to compare the acceleration signal to a frequency profile so as to determine a metric measuring a correspondence between the frequency profile and the frequencies characteristic of movement of the device; and
a fourth set of computer instructions to initiate the production of an alarm based upon the metric.
1 Assignment
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Accused Products
Abstract
A theft prevention system for protecting portable electronic devices is disclosed. An acceleration sensor detects the acceleration of a portable electronic device, and a controller analyzes this acceleration to determine whether a theft condition is present. If so, an alarm can be initiated. The theft prevention system can include a filter for attenuating irrelevant acceleration frequencies and isolating those representative of theft, and comparison hardware/software for determining whether the detected acceleration matches a known acceleration profile characteristic of theft. Various parameters of the theft prevention system can also be set by a user through mechanisms such as a graphical user interface.
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Citations
20 Claims
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1. A computer readable memory including at least computer instructions for directing an electronic system to provide theft protection, comprising:
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a first set of computer instructions to acquire an acceleration signal corresponding to an acceleration of the electronic system, the acceleration signal having frequencies characteristic of movement of the device;
a second set of computer instructions to process the acceleration signal so as to isolate the frequencies characteristic of movement of the device;
a third set of computer instructions to compare the acceleration signal to a frequency profile so as to determine a metric measuring a correspondence between the frequency profile and the frequencies characteristic of movement of the device; and
a fourth set of computer instructions to initiate the production of an alarm based upon the metric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for directing an electronic system to provide theft protection, comprising:
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acquiring an acceleration signal corresponding to an acceleration of the electronic system, the acceleration signal having frequencies characteristic of movement of the device;
processing the acceleration signal so as to isolate the frequencies characteristic of movement of the device;
comparing the acceleration signal to a frequency profile so as to determine a metric measuring a correspondence between the frequency profile and the frequencies characteristic of movement of the device; and
initiating the production of an alarm based upon the metric. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A portable consumer electronic product, comprising:
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a microprocessor for processing executable computer instructions; and
an acceleration sensor for detecting an acceleration undergone by the portable consumer electronic product in communication with the microprocessor, wherein the acceleration sensor examines characteristics of the detected acceleration to determine if a theft condition is present, the acceleration sensor transmits a theft detection signal to the microprocessor that responds to the theft detection signal by broadcasting an alarm. - View Dependent Claims (20)
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Specification