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Information display device and method for the same

  • US 9,600,171 B2
  • Filed: 12/19/2011
  • Issued: 03/21/2017
  • Est. Priority Date: 01/04/2011
  • Status: Active Grant
First Claim
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1. A method of controlling an information display device having a touch screen, the method comprising:

  • outputting audible data while the touch screen is in an unlocked state and while an audio playback application is performed;

    causing the touch screen to enter a locked state when a certain period of time lapses while the audio playback application is being performed in the unlocked state;

    continuing to perform the audio playback application such that the audible data is continuously output when the touch screen enters the locked state;

    displaying, in the locked state, an image for unlocking the touch screen, at least one application icon, and a virtual key for controlling the audio playback application on the touch screen together when the audible data is being output; and

    operating different functions based on whether a first drag input is applied to the at least one application icon, a second drag input is applied to the touch screen, or a touch input is applied to the virtual key, wherein the first drag input, the second drag input, and the touch input are applied while the image for unlocking the touch screen, the at least one application icon, and the virtual key are displayed,wherein the at least one application icon is linked to at least one application program stored in a memory of the information display device, the at least one application icon being different from the image for unlocking the touch screen,wherein a first function related to the first drag input is performed to display an execution screen of the at least one application program in response to a release of the first drag input from the touch screen,wherein a second function related to the touch input is performed in response to the touch input to control the output of the audible data while the locked state is maintained, andwherein a third function related to the second drag input is performed to display a window requesting an input of a password for unlocking the touch screen that is in the locked state in response to the second drag input.

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