Low latency input object detection in low ground quality conditions

A processing system is configured to detect an input object proximate to the processing system. The processing system includes sensor circuitry configured to make a determination that a large object is proximate to a sensor electrode of the processing system when the processing system is in a low ground mass (LGM) state. The sensor circuitry is further configured to, in response to a determination that a large object is proximate to the sensor electrodes when the processing system is in the LGM state, drive a first group of the sensor electrodes with one of an inverted signal or a non-inverted signal, and drive a second group of the sensor electrodes with a static DC voltage. 一种处理系统，其配置成检测接近处理系统的输入对象。处理系统包括传感器电路系统，传感器电路系统配置成当处理系统处于低接地质量（LGM）状态时，作出大对象接近处理系统的传感器电极的确定。传感器电路系统进一步配置成响应于当处理系统处于LGM状态时大对象接近传感器电极的确定，利用反转信号或非反转信号中的一个来驱动传感器电极的第一群组，并且利用静态DC电压来驱动传感器电极的第二群组。