Patent ID: 8902191

Claim:
An input device, comprising: an array of capacitive sensor electrodes configured to sense objects in a first sensing region of the input device; a proximity sensor electrode configured to sense objects in a second sensing region of the input device, the second sensing region different from the first sensing region; and a processing system communicatively coupled to the array of capacitive sensor electrodes and the proximity sensor electrode, wherein the processing system is configured to operate in a first mode comprising: driving a sensing signal on a transmitter sensor electrode of the array of capacitive sensor electrodes and receiving a first resulting signal from a receiver sensor electrode from only the array of capacitive sensor electrodes; and generating an indication of an object presence in the first sensing region from the first resulting signal; and wherein the processing system is configured to operate in a second mode comprising: driving a sensing signal on a transmitter sensor electrode of the array of capacitive sensor electrodes and receiving a second resulting signal from only the proximity sensor electrode; and generating an indication of an object presence in the second sensing region based on at least the second resulting signal.