公开(公告)号：US12109453B2

公开(公告)日：2024-10-08

申请号：US17032933

申请日：2020-09-25

申请人： Apple Inc.

发明人： Gunes Dervisoglu ,  Hung A. Pham ,  Bharath Narasimha Rao ,  Jonathan M. Beard ,  Lucie A. Huet ,  Anh N. Phan ,  Vinay R. Majjigi ,  James P. Ochs ,  Karthik Jayaraman Raghuram

IPC分类号： A63B24/00 ,  G16H20/30 ,  G16H40/67

CPC分类号： A63B24/0062 ,  G16H20/30 ,  G16H40/67 ,  A63B2220/836 ,  A63B2220/89

摘要： Disclosed embodiments include wearable devices and techniques for detecting walking workouts. By accurately and promptly detecting the start of walking workouts activities and automatically distinguishing between walking workout and causal walking activities, the disclosure enables wearable devices to accurately calculate user performance information when users forget to start and/or stop recording walking workouts.

公开(公告)号：US20230392953A1

公开(公告)日：2023-12-07

申请号：US18205478

申请日：2023-06-02

申请人： Apple Inc.

发明人： Lucie A. Huet ,  Adeeti V. Ullal ,  Allison L. Gilmore ,  Gabriel A. Blanco ,  Karthik Jayaraman Raghuram ,  Maryam Etezadi-Amoli ,  Richard A. Fineman

IPC分类号： G01C22/00 ,  A61B5/11 ,  A61B5/00 ,  G01C25/00

CPC分类号： G01C22/006 ,  A61B5/112 ,  A61B5/681 ,  G01C25/00 ,  A61B2562/0219

摘要： Embodiments are disclosed for stride length estimation and calibration at the wrist. In some embodiments, a method comprises: obtaining sensor data from a wearable device worn on a wrist of a user; deriving features from the sensor data; estimating a form-based stride length using an estimation model that takes the features and user height as input; and calibrating the form-based stride length. In other embodiments, user cadence and speed are used to estimate speed-based stride length which, upon certain conditions, is blended with the form-based stride length to get a final estimated stride length of the user.