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Activating display and performing user authentication in mobile terminal with one-time user input

DC CAFC
  • US 9,779,419 B2
  • Filed: 09/08/2015
  • Issued: 10/03/2017
  • Est. Priority Date: 10/19/2011
  • Status: Active Grant
First Claim
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1. A mobile communication terminal comprising:

  • a touch screen display;

    a power button configured to turn on and off the terminal by pressing; and

    an activation button separate from the power button and located outside the touch screen display, the activation button configured for pressing to turn on the touch screen display,wherein upon one-time pressing of the activation button while the touch screen display is turned off, the terminal is configured to turn on the touch screen display and perform a fingerprint authentication function in addition to turning on the touch screen display such that;

    a lock screen is displayed on the touch screen display upon turning on the touch screen display in response to the one-time pressing of the activation button while the touch screen display being turned off,in addition to turning on the touch screen display and displaying the lock screen, the one-time pressing while the touch screen display being turned off initiates the fingerprint authentication function,the lock screen is displayed on the touch screen display when the fingerprint authentication function initiated by the one-time pressing is being performed,a lock state of the terminal continues when the fingerprint authentication function fails to authenticate a user, andthe lock state is released for enabling other functions of the terminal when the fingerprint authentication function authenticates a user in response to the one-time pressing of the activation button while the touch screen display being turned off, wherein the terminal is further configured to perform at least one function other than the fingerprint authentication function in addition to turning on the touch screen display for displaying the lock screen in response to the one-time pressing of the activation button when the one-time pressing is for long time longer than a reference time period, wherein the at least one function to perform in addition to turning on the touch screen display for displaying the lock screen in response to the one-time pressing for long time is associated with initiating a hands-free operation of the terminal.

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