VIRTUAL INPUT DEVICE AND A METHOD FOR DETERMINING AN INPUT COORDINATE OF THE VIRTUAL INPUT DEVICE, CAPABLE OF COMPARING LIGHT DETECTION TIME WITH A COORDINATE VALUE TABLE FOR SCANNING TIME WITHOUT A SEPARATE IMAGE PROCESS

摘要

PURPOSE: A virtual input device and a method for determining an input coordinate of the virtual input device are provided to obtain a coordinate of an input unit without a separate image process, thereby reducing processing time and system resources for input coordinate determination.;CONSTITUTION: A projecting unit(11) projects light of a scanning type to display a virtual input interface. A detection unit(12) detects light scattered by an input unit. A coordinate determination unit(13) compares detection time when the scattered light is detected with a coordinate value table for scanning time of the projected light. The coordinate decision unit decides the coordinate of the input means on the virtual input interface.;COPYRIGHT KIPO 2011