Sensor System And Method For Reducing A Settling Time Of A Sensor System
First Claim
1. A sensor system comprising a first sensor device and a second capacitive sensor device for detecting a movement of the object relative to a detection surface, wherein the sensor system is configured to be operated in a first mode of operation and in a second mode of operation, wherein the sensor system is configured to be switched over from the first mode of operation into the second mode of operation, wherein the second capacitive sensor device comprises a number of second sensor electrodes, and wherein in the sensor system at least in the second mode of operation at least one signal path connectable with a predetermined fixed electric potential is provided, which is parallel to a parasitic capacitance of the first sensor device.
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Abstract
A sensor system has a first sensor device and a second capacitive sensor device for detecting a movement of the object relative to a detection surface, wherein the sensor system may be operated in a first mode of operation and in a second mode of operation, wherein the sensor system may be switched over from the first mode of operation into the second mode of operation, wherein the second capacitive sensor device has a number of second sensor electrodes, and wherein in the sensor system at least in the second mode of operation at least one signal path connectable with a predetermined fixed electric potential is provided, which is parallel to a parasitic capacitance of the first sensor device.
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Citations
14 Claims
- 1. A sensor system comprising a first sensor device and a second capacitive sensor device for detecting a movement of the object relative to a detection surface, wherein the sensor system is configured to be operated in a first mode of operation and in a second mode of operation, wherein the sensor system is configured to be switched over from the first mode of operation into the second mode of operation, wherein the second capacitive sensor device comprises a number of second sensor electrodes, and wherein in the sensor system at least in the second mode of operation at least one signal path connectable with a predetermined fixed electric potential is provided, which is parallel to a parasitic capacitance of the first sensor device.
- 8. A method for reducing a settling time of a second capacitive sensor device for detecting a movement of an object relative to a detection surface, wherein the second capacitive sensor device is part of a sensor system that in addition comprises a first sensor device, wherein the sensor system is operated in a first mode of operation or in a second mode of operation, wherein at least in the second mode of operation at least one signal path is connected with a predetermined fixed electric potential in the sensor system, wherein the signal path is parallel to the parasitic capacitance of the first sensor device.
- 12. A sensor device for detecting a contact by an object with a detection surface, wherein the sensor device comprises a number of sensor electrodes, wherein at least one signal path connectable with a predetermined fixed electric potential is provided in the sensor device, which is parallel to the parasitic capacitance of the sensor device.
Specification