Sensor device for detecting approach and touch of e.g. hand held device by hand, has electrode structure including transmission, compensation and receiving electrodes, where electrical field is received in receiving electrode

摘要

The device has an electrode structure including a transmission electrode (SE), a compensation electrode (KE) and a receiving electrode (EE). Another electrode structure has multiple filed measurement electrodes (FE). The electrodes are arranged relative to each other. Alternating electrical field (WS) is emitted from the transmission electrode and received in the receiving and field measurement electrodes. Another electrical field (WK) is emitted from the compensation electrode and received in the receiving electrode. An independent claim is also included for a method for detecting circumference around a hand held device.