公开(公告)号：US20240328871A1

公开(公告)日：2024-10-03

申请号：US18615445

申请日：2024-03-25

申请人： Apple Inc.

发明人： Imam uz ZAMAN ,  Ashkan OJAGHI ,  Mathieu CHARBONNEAU-LEFORT ,  Ueyn L. BLOCK

IPC分类号： G01K13/20 ,  G01K1/02 ,  G01K1/16 ,  G01K3/14

CPC分类号： G01K13/20 ,  G01K1/026 ,  G01K1/16 ,  G01K3/14

摘要： This relates generally to systems and processes (e.g., algorithm(s), application(s), and device(s)) that use temperature information, such as temperature gradient data (e.g., spatial temperature gradients and/or temporal temperature gradients), for detecting a physiological state of a user, a portion of the user on which the user wears an electronic device, an orientation of the electronic device on the user, and/or skin thermal properties for body temperature sensing, for refining or improving an optical sensor calibration, and/or for improving a photoplethysmogram sensor.