Baseline management with large input object detection

A processing system for capacitance sensing of a capacitive input device, comprising:

• a sensor module comprising sensor circuitry coupled to a plurality of sensor electrodes, the sensor module configured to generate sensing signals received with the plurality of sensor electrodes;
• and
• a determination module connected to the plurality of sensor electrodes and configured to:
• obtain a profile from the sensing signals,
• determine, for a first time, a presence of an input object in a sensing region using the profile,
• wherein the presence is determined for the first time using a first baseline, and
• wherein the input object satisfies a size threshold,
• suppress a reporting of the capacitance input device during a predefined time period based on the presence of the input object,
• determine a disabled state of a display of a host, wherein the disabled state is in response to determining the presence of the input object for the first time,
• change, in response to the disabled state of the display, the first baseline to a second baseline to account for the disabled state of the display,
• determine, in response to an elapse of the predefined time period and for a second time, an absence of the input object in the sensing region, wherein the absence of the input object is determined for the second time using the second baseline, and
• issue a report to the host based on determining the absence of the input object.

An input device comprising:

• a plurality of sensor electrodes configured to generate sensing signals;
• and
• a processing system connected to the plurality of sensor electrodes and configured to:
• obtain a profile from the sensing signals,
• determine, for a first time, a presence of an input object in a sensing region using the profile,
• wherein the presence is determined for the first time using a first baseline, and
• wherein the input object satisfies a size threshold,
• suppress a reporting of the input device during a predefined time period based on the presence of the input object,
• determine a disabled state of a display of a host, wherein the disabled state is in response to determining the presence of the input object for the first time,
• change, in response to the disabled state of the display, the first baseline to a second baseline to account for the disabled state of the display,
• determine, in response to an elapse of the predefined time period and for a second time, an absence of the input object in the sensing region, wherein the absence of the input object is determined for the second time using the second baseline, and
• issue a report to the host based on determining the absence of the input object.