Patent ID: 8508505
Filing Date: 2013-08-13
Classification: G06F

Abstract:
1. A virtual optical input device comprising: a multi optical input pattern generator including a light source and a plurality of filters, wherein the plurality of filters having changeable relative location are located in a light path, each filter has at least one pattern, change of relative location between the plurality of filters forms a plurality of combinations, the plurality of combinations generates a plurality of virtual optical input patterns, respectively, and the light source irradiates a light of the light path onto one combination of the plurality of filters to form one of the plurality of virtual optical input patterns by the one combination of the plurality of filters; an image receiver configured to detect and receive an image of an input means and a formed virtual optical input pattern; and an image processor configured to detect the position of the input means on the formed virtual optical input pattern by use of the received image, and execute a command corresponding to the detected position of the input means.