Synaptics Corporation

Guanhua Cao

Tetsuo Tanemura

Cungang Ding

Longming Cheng

A processing system is configured to drive a transmitter electrode with a repetitive multi-burst pattern. The repetitive multi-burst pattern includes a first multitude of bursts of a sensing waveform and a second multitude of bursts of the sensing waveform. The second multitude of bursts is a repetition of the first multitude of bursts. The processing system is further configured to receive, from a receiver electrode, a resulting signal in response to the repetitive multi-burst pattern, and identify, in the resulting signal, a segment least affected by a noise, and that temporally coincides with a burst in the first multitude of bursts or a burst in the second multitude of bursts matching the burst in the first plurality of bursts. The processing system is also configured to decode the resulting signal using the segment.

Short-term noise suppression

A method may include performing a first low-power scan to detect an input object in a sensing region of an input device. The method may further include determining, using the first low-power scan, whether the input object is an object of interest. The method may further include performing a high-power scan of the sensing region when the input object is an object of interest. The method may further include performing a second low-power scan of the sensing region when the input object is an object of no interest.

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Shanghai, China

Guanhua Cao