Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-05-15
2007-05-15
Nguyen, Hung (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S539100, C340S540000, C340S541000, C340S568100, C340S686100
Reexamination Certificate
active
10791495
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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U.S. Appl. No. 10/997,479, filed Nov. 24, 2004.
Apple Inc.
Beyer & Weaver, LLP
Nguyen Hung
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