公开(公告)号：US20240385112A1

公开(公告)日：2024-11-21

申请号：US18318037

申请日：2023-05-16

Applicant: PLUME DESIGN, INC.

Inventor： Min-Feng HSIEH ,  Ta-Lung LEE ,  Shu-Hua CHANG ,  Zhicheng QIU

IPC: G01N21/55

Abstract: Systems and methods of embodiments of the present disclosure provide automated testing of PPG sensors using a programmatically controlled rotational actuator. The rotational actuator may include one or more light reflecting surfaces that can be actuated towards and away from the PPG sensor to simulate reflectivity of the tissue of a subject. Particular heart rates, heart rate variabilities and/or other physiological behaviors may be simulated based on actuations patterns, including, e.g., frequency, range of actuation, or variations thereof, among other actuation pattern characteristics. Based on the output signal produced by the PPG sensor in response to the actuation pattern, the PPG sensor may be assessed for accuracy and/or sensitivity to ensure quality.

公开(公告)号：US20240385170A1

公开(公告)日：2024-11-21

申请号：US18318065

申请日：2023-05-16

Applicant: PLUME DESIGN, INC.

Inventor： Min-Feng HSIEH ,  Ta-Lung LEE ,  Shu-Hua CHANG ,  Zhicheng QIU

IPC: G01N33/49

Abstract: Systems and methods of embodiments of the present disclosure provide automated testing of PPG sensors using a programmatically controlled light source. The light source may include one or more light emitting elements that can be modulated to emit light towards the PPG sensor to simulate reflectivity of the tissue of a subject. Particular heart rates, heart rate variabilities and/or other physiological behaviors may be simulated based on illumination patterns, including, e.g., frequency, range of intensity, or variations thereof, among other illumination pattern characteristics. Based on the output signal produced by the PPG sensor in response to the illumination pattern, the PPG sensor may be assessed for accuracy and/or sensitivity to ensure quality.