Abstract: A method for tracking zero-angle position shift of a moveable mirror used in a LiDAR system is provided. The method comprises obtaining a first dataset based on a first intensity map. The first intensity map is associated with internal reflection pulses of a frame scanned by the LiDAR system. The frame comprises a plurality of scan positions. The internal reflection pulses are formed by scattering or reflecting one or more transmission light pulses at positions internal to a housing of the LiDAR system. The first dataset is a calibration dataset comprising representative intensity values and corresponding positions in the frame. The method further comprises obtaining a second intensity map of another frame at a subsequent time and obtaining a second dataset based on the second intensity map. The method further comprises determining the zero-angle position shift of the moveable mirror based on the first dataset and the second dataset.

Abstract: A system and method for reducing electromagnetic interference comprises generating a first voltage signal based on a settling time of a first electrode, a slew rate of a signal generator, and a harmonic parameter, and driving the first electrode with the first voltage signal. The first voltage signal may be one of a capacitive sensing signal, display update signal, a transmission signal, and a selection signal. Further, a processing system may be configured to operate in one of an absolute capacitive sensing mode and a transcapacitive sensing mode. In an absolute capacitive sensing mode, the processing system is configured to receive a resulting signal with the first electrode, and determine a measurement of a change in capacitive coupling of the first electrode based on the resulting signal.

Abstract: Techniques for obtaining force-based data of an input device are provided. The techniques include driving sensor electrodes in transcapacitive mode and in absolute capacitive mode, obtaining profiles for each of the modes, scaling the transcapacitive profile, and subtracting the scaled transcapacitive profile from the profile for absolute capacitive sensing. The result of this subtraction is force-based data that indicates the degree of force with that input object applies to the input device.

Abstract: Techniques for obtaining force-based data of an input device are provided. The techniques include driving sensor electrodes in transcapacitive mode and in absolute capacitive mode, obtaining profiles for each of the modes, scaling the transcapacitive profile, and subtracting the scaled transcapacitive profile from the profile for absolute capacitive sensing. The result of this subtraction is force-based data that indicates the degree of force with that input object applies to the input device.