Electronic device and method for unlocking screen of electronic device

  • US 9,372,981 B2
  • Filed: 11/14/2014
  • Issued: 06/21/2016
  • Est. Priority Date: 12/12/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • detecting, in a screen-locked state, intent of a user to unlock a screen of an electronic device;

    extracting contact information from a storage unit of the electronic device when detecting that the user intends to unlock the screen, wherein the contact information comprises a first attribute value and a second attribute value;

    displaying the first attribute value on the screen;

    prompting the user for an input;

    detecting the input;

    comparing the input to the second attribute value;

    unlocking the screen when the input is the same as the second attribute value; and

    maintaining the screen-locked state when the input is not the same as the second attribute value.

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