| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve sensing efficiency of a capacitive touch sensing device. <P>SOLUTION: For a touch sensing device 1, the present invention divides a scanning procedure of an electrode matrix 10 into two scanning stages. First, it scans broadly (coarse scan) for determining whether the potential signal of at least one driving line LD of the electrode matrix 10 is changed or not. After that, only the driving line LD whose potential signal is changed is scanned in detail, to determine whether the potential signal of each coupling node 101 on the driving line LD is changed or not. <P>COPYRIGHT: (C)2013,JPO&INPIT |
