Inventor
HAN CHIN SAN
US21 patents
Patents
21 patentsUS10247670B2Apr 2, 2019
Reflective surface treatments for optical sensors
APPLE INC42 citations97
US10117587B2Nov 6, 2018
Dynamically reconfigurable apertures for optimization of PPG signal and ambient light mitigation
APPLE INC44 citations97
US10078052B2Sep 18, 2018
Reflective surface treatments for optical sensors
APPLE INC58 citations97
US10215698B2Feb 26, 2019
Multiple light paths architecture and obscuration methods for signal and perfusion index optimization
APPLE INC79 citations96
US10317200B1Jun 11, 2019
Multi-mode sensor for surface orientation
APPLE INC32 citations94
US10092197B2Oct 9, 2018
Reflective surfaces for PPG signal detection
APPLE INC24 citations94
US10874348B1Dec 29, 2020
Force sensing for PPG heart-rate performance enhancement and contact detection
APPLE INC36 citations93
US10687717B1Jun 23, 2020
PPG sensor having light arrival angle control at detector
APPLE INC19 citations91
US11536653B2Dec 27, 2022
Multiple light paths architecture and obscuration methods for signal and perfusion index optimization
APPLE INC5 citations82
US11397120B2Jul 26, 2022
Interface pressure sensor system for electronic device
APPLE INC5 citations82
US11624667B2Apr 11, 2023
Interface pressure sensor system for electronic device
APPLE INC4 citations73
US11627887B2Apr 18, 2023
PPG sensor having light arrival angle control at detector
APPLE INC5 citations72
US11349063B2May 31, 2022
Multi-element piezo sensor for in-bed physiological measurements
APPLE INC3 citations70
US12161447B2Dec 10, 2024
Reflective surfaces for PPG signal detection
APPLE INC0 citations62
US11166641B2Nov 9, 2021
Dynamically reconfigurable apertures for optimization of PPG signal and ambient light mitigation
APPLE INC0 citations62
US12207905B2Jan 28, 2025
Pressure sensing in portable electronic devices
APPLE INC0 citations61
US12072288B2Aug 27, 2024
Multiple light paths architecture and obscuration methods for signal and perfusion index optimization
APPLE INC0 citations61
US10200516B2Feb 5, 2019
Interlocking ceramic and optical members
APPLE INC1 citations61
US11839450B2Dec 12, 2023
Pressure sensor module for wearable applanation tonometer
APPLE INC1 citations60
US11839451B2Dec 12, 2023
Sensing structure for pulse-wave velocity measurement
APPLE INC1 citations60
US12219877B2Feb 4, 2025
Multi-element piezo sensors for physiological measurements
APPLE INC0 citations59