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Graphical User Interface Interaction Using Secondary Touch Input Device

  • US 20130100035A1
  • Filed: 10/19/2011
  • Published: 04/25/2013
  • Est. Priority Date: 10/19/2011
  • Status: Abandoned Application
First Claim
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1. An apparatus of a first user, comprising:

  • a device housing;

    a memory;

    one or more main processors;

    one or more sensors;

    a first display disposed on a front side of the device housing;

    a touch surface disposed on a back side of the device housing;

    a program comprising computer-readable instructions operative, when executed, to cause the one or more processors to;

    in response to a touch event generated by the touch surface during presentation of an application user interface at the first display;

    select a control key mode for the application user interface based on the touch event; and

    process one or more user inputs at the application user interface based in part on the selected control key mode.

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