Patent ID: 8531429

Claim:
A capacitive sensing device, comprising: a sensing unit detecting three mutual capacitance changes in charge coupling, wherein the three mutual capacitance changes include a first mutual capacitance change between one of a plurality of first conductive lines and one of a plurality of second conductive lines, a second mutual capacitance change between at least one of a plurality of electrical conductors and the one of the plurality of first conductive lines, and a third mutual capacitance change between the at least one of the plurality of electrical conductors and the one of the plurality of second conductive lines; a signal unit operatively driving an electrical signal to capacitively couple with the sensing unit through the one of the first conductive lines, the one of the second conductive lines and the one of the electrical conductors; wherein the plurality of first conductive lines are oriented in a first direction and the plurality of second conductive lines are oriented in a second direction; wherein the plurality of first conductive lines and the plurality of second conductive lines are electrically isolated from each other and intersecting with each other to form a plurality of intersecting points; wherein at least one of the plurality of electrical conductors overlays each of the plurality of intersecting points.