Electrode design for electric field measurement system
First Claim
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, andthe 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.
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Accused Products
Abstract
An electrode arrangement for an electric field sensor device with a transmitting electrode and at least one receiving electrode may have a nonconductive substrate having a first conductive layer and a second conductive layer. A first electrode is arranged within the first conductive layer, wherein the first electrode is a receiving electrode of the electric field sensor device, and a second electrode is arranged within the second conductive layer, wherein the second electrode is a transmitting electrode of the electric field sensor device wherein the second electrode covers a larger area than the first electrode and wherein the second electrode is textured to reduce the capacitance between the first and second electrode.
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Citations
23 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An electrode arrangement for an electric field sensor device with a transmitting electrode receiving a square wave signal having a frequency of about 30-200 kHz to generate a quasi-static electric field above the transmission electrode and a plurality of receiving electrodes associated with the transmitting electrode, wherein the electrode arrangement is configured to determine a multi-dimensional gesture of an object above the electrode arrangement from signals received from the plurality of receiving electrodes, the electrode arrangement further comprising:
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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 the 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.
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23. An electrode arrangement for an electric field sensor device with a transmitting electrode receiving a square wave signal having a frequency of about 30-200 kHz to generate a quasi-static electric field above the transmission electrode and a plurality of receiving electrodes associated with the transmitting electrode, wherein the electrode arrangement is configured to determine a gesture of an object above the electrode arrangement without touching from signals received from the plurality of receiving electrodes, the electrode arrangement further comprising:
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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 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 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.
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Specification