公开(公告)号：US20250072787A1

公开(公告)日：2025-03-06

申请号：US18458879

申请日：2023-08-30

Applicant: STMicroelectronics International N.V. ,  POLITECNICO DI MILANO

Inventor： Diego CARRERA ,  Carlo GHIGLIONE ,  Beatrice ROSSI ,  Pasqualina FRAGNETO ,  Giacomo BORACCHI

IPC: A61B5/11 ,  A61B5/00

Abstract: A method of operating an inertial sensor module includes receiving a stream of inertial sensor data representing activity of a user of an electronic device and generating a plurality of wavelet sub-bands by performing a wavelet transform on the inertial sensor data. The method includes identifying a wavelet sub-band of highest energy from the plurality of wavelet sub-bands, generating augmented inertial sensor data by combining the wavelet sub-band of highest energy to the inertial sensor data, and identifying a first transition in the activity of the user based on the augmented inertial sensor data.