Short-term noise suppression

An input device comprising:

• a transmitter electrode and a receiver electrode;
• and
• a processing system configured to:
• drive the transmitter electrode with a repetitive multi-burst pattern, wherein the repetitive multi-burst pattern comprises:
• a first plurality of bursts of a sensing waveform, and
• a second plurality of bursts of the sensing waveform, wherein the second plurality of bursts is a repetition of the first plurality of bursts;
• receive, from the receiver electrode, a resulting signal in response to the repetitive multi-burst pattern,
• identify, in the resulting signal, a segment least affected by noise, and that temporally coincides with a burst in the first plurality of bursts or a burst in the second plurality of bursts matching the burst in the first plurality of bursts,
• wherein identifying the segment that is least affected by the noise comprises:
• comparing a first segment of the resulting signal and a second segment of the resulting signal to a third segment,
• wherein the first segment of the resulting signal temporally coincides with the burst in the first plurality of bursts, the second segment of the resulting signal temporally coincides with the burst in the second plurality of bursts, and the third segment is associated with a prior repetitive multi-burst pattern obtained in absence of the noise;
• and
• selecting, between the first segment and the second segment, the segment least affected by the noise that is more similar to the third segment;
• and
• decode the resulting signal using the segment.

A method for operating an input device, the method comprising:

• driving a transmitter electrode with a repetitive multi-burst pattern, wherein the repetitive multi-burst pattern comprises:
• a first plurality of bursts of a sensing waveform, and
• a second plurality of bursts of the sensing waveform, wherein the second plurality of bursts is a repetition of the first plurality of bursts;
• receiving, from a receiver electrode, a resulting signal in response to the repetitive multi-burst pattern,
• identifying, in the resulting signal, a segment least affected by a noise, and that temporally coincides with a burst in the first plurality of bursts or a burst in the second plurality of bursts matching the burst in the first plurality of bursts, wherein identifying the segment that is least affected by the noise comprises:
• comparing a first segment of the resulting signal and a second segment of the resulting signal to a third segment,
• wherein the first segment of the resulting signal temporally coincides with the burst in the first plurality of bursts, the second segment of the resulting signal temporally coincides with the burst in the second plurality of bursts, and the third segment is associated with a prior repetitive multi-burst pattern obtained in absence of the noise, and
• selecting, between the first segment and the second segment, the segment least affected by the noise that is more similar to the third segment;
• and
• decoding the resulting signal using the segment.