Patent ID: 11929744
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An apparatus, comprising:
a first set of electrodes;
a second set of electrodes, wherein the first and second sets of electrodes define and form a pathway;
a first electrode disposed in the pathway formed by the first and second sets of electrodes and configured to move along the pathway; and
a capacitance sensing circuit coupled to the first and second sets of electrodes and configured to:
determine a capacitance of a first capacitor based on a first amount of the first electrode between the first set of electrodes;
determine a capacitance of a second capacitor based on a second amount of the first electrode between the first set of electrodes, wherein the first capacitor is coupled in parallel with the second capacitor;
determine a capacitance of a third capacitor based on a third amount of the first electrode between the second set of electrodes; and
determine a capacitance of a fourth capacitor based on a fourth amount of the first electrode between the second set of electrodes, wherein the third capacitor is coupled in parallel with the fourth capacitor, wherein the third capacitor and the fourth capacitor are electrically coupled to the first capacitor and second capacitor.