Inventor
SINGH ALVARADO ALEXANDER
US29 patents
Patents
29 patentsUS9918646B2Mar 20, 2018
Sensor fusion approach to energy expenditure estimation
APPLE INC62 citations97
US9526430B2Dec 27, 2016
Method and system to estimate day-long calorie expenditure based on posture
APPLE INC81 citations96
US10524670B2Jan 7, 2020
Accurate calorimetry for intermittent exercises
APPLE INC13 citations94
US10244948B2Apr 2, 2019
Statistical heart rate monitoring for estimating calorie expenditure
APPLE INC23 citations93
US10629048B2Apr 21, 2020
Detecting falls using a mobile device
APPLE INC21 citations92
US10291975B2May 14, 2019
Wireless ear buds
APPLE INC32 citations92
US10154789B2Dec 18, 2018
Latent load calibration for calorimetry using sensor fusion
APPLE INC13 citations91
US11647352B2May 9, 2023
Head to headset rotation transform estimation for head pose tracking in spatial audio applications
APPLE INC8 citations84
US11276290B2Mar 15, 2022
Detecting falls using a mobile device
APPLE INC7 citations84
US10699594B2Jun 30, 2020
Calculating an estimate of wind resistance experienced by a cyclist
APPLE INC12 citations84
US11589183B2Feb 21, 2023
Inertially stable virtual auditory space for spatial audio applications
APPLE INC10 citations82
US11103749B2Aug 31, 2021
Systems and methods of swimming analysis
APPLE INC7 citations82
US10709933B2Jul 14, 2020
Pose and heart rate energy expenditure for yoga
APPLE INC9 citations82
US10617912B2Apr 14, 2020
Systems and methods of swimming calorimetry
APPLE INC9 citations82
US10098549B2Oct 16, 2018
Local model for calorimetry
APPLE INC8 citations82
US11675423B2Jun 13, 2023
User posture change detection for head pose tracking in spatial audio applications
APPLE INC8 citations80
US11896368B2Feb 13, 2024
Systems and methods for determining swimming metrics
APPLE INC2 citations71
US11842615B2Dec 12, 2023
Detecting falls using a mobile device
APPLE INC3 citations71
US11582573B2Feb 14, 2023
Disabling/re-enabling head tracking for distracted user of spatial audio application
APPLE INC4 citations70
US11586280B2Feb 21, 2023
Head motion prediction for spatial audio applications
APPLE INC4 citations69
US12154420B2Nov 26, 2024
Detecting falls using a mobile device
APPLE INC0 citations61
US12556878B2Feb 17, 2026
Determining a virtual listening environment
APPLE INC0 citations60
US12295726B2May 13, 2025
Systems and methods for determining swimming metrics
APPLE INC0 citations60
US11647321B2May 9, 2023
Wireless ear buds
APPLE INC0 citations60
US12108237B2Oct 1, 2024
Head tracking correlated motion detection for spatial audio applications
APPLE INC0 citations58
US12069469B2Aug 20, 2024
Head dimension estimation for spatial audio applications
APPLE INC0 citations57
US12219344B2Feb 4, 2025
Adaptive audio centering for head tracking in spatial audio applications
APPLE INC0 citations52
US12474365B2Nov 18, 2025
User posture transition detection and classification
APPLE INC0 citations47
US10496043B2Dec 3, 2019
Pressure sensor occlusion mitigation systems and methods
APPLE INC0 citations47