公开(公告)号：DE602005014641D1

公开(公告)日：2009-07-09

申请号：DE602005014641

申请日：2005-10-03

Applicant: ST MICROELECTRONICS SRL

Inventor： PASOLINI FABIO ,  BINDA IVO

IPC: G01C22/00

Abstract: In a pedometer device (1), for detecting and counting steps of a user on foot, an accelerometer sensor (2) detects a vertical acceleration generated during the step. A processing unit (3) is connected to the accelerometer sensor (2), processes an acceleration signal (CalAcc) relating to the acceleration (A) in order to detect the occurrence of a step, and in particular compares the acceleration signal (CalAcc) with a first reference threshold (S + ). The processing unit (3) automatically adapts the first reference threshold (S + ) as a function of the acceleration signal (CalAcc). In particular, the processing unit (3) modifies the first reference threshold (S + ) as a function of an envelope (Env + ) of the amplitude of the acceleration signal.

公开(公告)号：DE602008003659D1

公开(公告)日：2011-01-05

申请号：DE602008003659

申请日：2008-01-22

Applicant: ST MICROELECTRONICS SRL

Inventor： BINDA IVO ,  TRONCONI MICHELE

IPC: G01C5/06 ,  G01L9/00

公开(公告)号：ITTO20080865A1

公开(公告)日：2010-05-25

申请号：ITTO20080865

申请日：2008-11-24

Applicant: ST MICROELECTRONICS SRL

Inventor： BINDA IVO ,  TRONCONI MICHELE