ELECTROSTATIC DEVICE HAVING SPACED ELECTRODES

摘要

Devices are described herein that include spaced electrodes. In one example, a spaced distance between the electrodes may cause a capacitance between the electrodes to exceed a capacitance threshold. In another example, an impedance component (e.g., a resistor or a capacitor) may be coupled between the electrodes. In accordance with this example, the impedance component may provide an impedance that is less than an impedance threshold while causing an absolute difference between voltages that are induced by the respective electrodes to exceed a voltage threshold.

主权项

1. An electrostatic device comprising:
a member having a proximal end and a distal end at opposing ends of an axis; a first electrode positioned at the proximal end, the first electrode configured to electrostatically couple a principal signal to a sensor matrix of a computing device, such that an intensity of the principal signal that is sensed by the sensor matrix increases as the first electrode approaches the sensor matrix; a drive circuit configured to generate the principal signal, the principal signal being an active signal; and a second electrode positioned a spaced distance from the first electrode, the spaced distance configured to cause a designated capacitance between the first electrode and the second electrode to exceed a capacitance threshold and to cause the second electrode to electrostatically couple a secondary signal, which is based on the principal signal, to the sensor matrix as the first electrode is placed proximate the sensor matrix.