Patent ID: 8311370
Filing Date: 2012-11-13
Classification: G06F

Abstract:
1. A portable terminal for receiving data from a user input means, comprising: a two-dimensional image sensor for sensing an image of the user input means along x and y axes through a virtual input device and outputting image data of the user input means; an image analyzer for detecting position data and motion data of the user input means from the image data; a data input decider for determining data received through the virtual input device based on the position data and the motion data; a display for simultaneously displaying the image data of the user input means and the virtual input device; and an initializer for setting an initial motion range for the user input means according to a ratio between a size of the display and a motion range of the user input means, and setting an initial feature image for the user input means according to a type of the virtual input device, for data input.