发明名称 |
DRIVING SENSOR ELECTRODES FOR PROXIMITY SENSING |
摘要 |
In an example, a processing system includes: a sensor module comprising sensor circuitry, the sensor module configured to: drive, during a first time period, a first sensor electrode of a first plurality of sensor electrodes for absolute capacitive sensing, a second sensor electrode of the first plurality of sensor electrodes with a reference signal, and at least one sensor electrode of a second plurality of sensor electrodes with a guard signal, to acquire first changes of capacitance between the first sensor electrode and at least one input object in proximity with the first sensor electrode; and a determination module configured to determine positional information for the at least one input object based at least in part on changes of capacitance acquired by the sensor module. |
申请公布号 |
US2015378467(A1) |
申请公布日期 |
2015.12.31 |
申请号 |
US201414319264 |
申请日期 |
2014.06.30 |
申请人 |
Synaptics Incorporated |
发明人 |
HOCH David |
分类号 |
G06F3/044;G06F3/046 |
主分类号 |
G06F3/044 |
代理机构 |
|
代理人 |
|
主权项 |
1. A processing system, comprising:
a sensor module comprising sensor circuitry, the sensor module configured to: drive, during a first time period, a first sensor electrode of a first plurality of sensor electrodes for absolute capacitive sensing, a second sensor electrode of the first plurality of sensor electrodes with a reference signal, and at least one sensor electrode of a second plurality of sensor electrodes with a guard signal, to acquire first changes of capacitance between the first sensor electrode and at least one input object in proximity with the first sensor electrode; and a determination module configured to determine positional information for the at least one input object based at least in part on changes of capacitance acquired by the sensor module. |
地址 |
San Jose CA US |