Patent ID: 9459296
Filing Date: 2016-10-04
CPC Classification: G01R,H03K

Claim Text:
1. An electrode arrangement for an electric field sensor device with a transmitting electrode configured to generate a quasi-static electric field and a plurality of receiving electrodes associated with the transmitting electrode, wherein the electrode arrangement is configured to determine a non-touching gesture of an object above the electrode arrangement from signals received from the plurality of receiving electrodes, the electrode arrangement further comprising: a signal generator configured to generate an alternating signal fed to the transmitting electrode and operable to generate the quasi static electric field; a nonconductive substrate having a first conductive layer and a second conductive layer, wherein the second conductive layer only comprises the transmitting electrode, wherein the plurality of receiving electrodes are each formed by a section of the first conductive layer, and the transmitting electrode is formed by a section of the second conductive layer, wherein the transmitting electrode covers a larger area than a combined area of the plurality of receiving electrodes and wherein the section forming the transmitting electrode is textured thereby reducing a capacitance between the transmitting electrode and each of the plurality of receiving electrodes.