SENSING APPARATUS FOR SENSING POSITION OF TOUCH OBJECT BASED ON ELECTROMAGNETIC INDUCTION AND METHOD FOR CONTROLLING THEREOF

摘要

A sensing device for measuring the position of a touch object based on an electromagnetic induction method is disclosed. The electromagnetic sensing apparatus according to the present invention includes a loop unit including a first sub-loop unit and a second sub-loop unit for conducting current or sensing electromagnetic change, and a loop unit for alternating the current conduction and the electromagnetic change sensing with a predetermined sub- And controls the second sub-loop unit to alternately perform electromagnetic change sensing and current conduction as opposed to the operation of the first sub-loop unit at a predetermined period.