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System using touchscreen user interface of a mobile device to remotely control a host computer

  • US 7,870,496 B1
  • Filed: 01/29/2009
  • Issued: 01/11/2011
  • Est. Priority Date: 01/29/2009
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a display operable to display a local image defined relative to local image space coordinates;

    a touchscreen interface positioned over the display, the touchscreen interface operable to register and track one or more touch events occurring over the touchscreen interface;

    one or more processors; and

    one or more computer-readable tangible media encoding one or more instructions that, when executed collectively by the processors;

    establish a remote network computing (RNC) session with a host computer system over a network;

    transmit, to the host computer system, touch event information associated with touch events;

    receive, from the host computer system, graphical display information corresponding to a host image associated with the host computer system, the host image being defined relative to host image space coordinates, the graphical display information being received in host image space coordinates;

    translate the graphical display information from host image space coordinates to local image space coordinates;

    update the local image based on the graphical display information, the local image comprising a selected portion of the host image; and

    in response to mouse movement events caused by associated touch events, change the selected portion of the host image while keeping a cursor displayed on the display in the center of the display.

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