Patent ID: 8194049
Filing Date: 2012-06-05
Classification: G06F

Abstract:
1. A capacitive motion detection device comprising: a device main body; two or more detection electrode/drive electrode pairs in each of which a capacitance is formed between a detection electrode and a drive electrode, the detection electrode/drive electrode pairs being provided at detection positions of the device main body; a motion detection circuit configured to detect motions of an object to be detected in two or more axis directions from a variation in a capacitance obtained in each of the detection electrode/drive electrode pairs, the motion detection circuit including a drive circuit and a detection circuit; and a switching circuit configured to selectively coupling the drive circuit and the detection circuit to the detection electrode/drive electrode pairs, wherein the device main body includes a substantially rectangular first area having four sides, the detection electrode/drive electrode pairs including: and wherein the switching circuit is configured to: