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System and method for providing improved detection of user inaction

  • US 8,111,144 B2
  • Filed: 02/13/2007
  • Issued: 02/07/2012
  • Est. Priority Date: 02/13/2007
  • Status: Active Grant
First Claim
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1. A method of controlling an operation mode of a mobile computing device, said method comprising:

  • detecting proximity of a holster to said mobile computing device, wherein said detecting said proximity includes;

    generating an electro-magnetic carrier field; and

    sensing modulation of said electro-magnetic carrier field by a component of said holster, wherein said component of said holster uses load modulation to modulate said electro-magnetic carrier field; and

    responsive to said detecting, disabling an input device to prevent input when said mobile computing device is both in and either going into or coming out of said holster.

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