Invention Grant
US09124273B2 Sensor device and method for grip and proximity detection 有权
用于抓握和接近检测的传感器装置和方法

Sensor device and method for grip and proximity detection
Abstract:
A sensor device is provided, with a first electrode structure and a second electrode structure, wherein the first electrode structure has a transmitting electrode, a compensation electrode and a reception electrode and wherein the second electrode structure has a number of field sensing electrodes. The first and the second electrode structure are coupled with an evaluating device. The evaluating device has a signal generator for supplying the transmitting electrode and the compensation electrode with an alternating electrical signal. The reception electrode, the transmitting electrode, the compensation electrode and the field sensing electrodes are arranged in relation to each other in such a way that a first alternating electrical field emitted at the transmitting electrode may be coupled into the reception electrode and into one of the field sensing electrodes and a second alternating electrical field emitted at the compensation electrode may be coupled substantially only into the reception electrode.
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