Invention Grant
- Patent Title: Heart rate measurement and a photoplethysmograph (PPG) heart rate monitor
-
Application No.: US16271246Application Date: 2019-02-08
-
Publication No.: US10893815B2Publication Date: 2021-01-19
- Inventor: Tarkesh Pande , David Patrick Magee
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Lawrence J. Bassuk; Charles A. Brill; Frank D. Cimino
- Main IPC: A61B5/024
- IPC: A61B5/024 ; A61B5/00

Abstract:
A method for heart rate measurement in a photoplethysmograph (PPG) heart rate monitor device is provided that includes performing motion compensation on a PPG signal wherein a motion compensated PPG signal PPGaccX is generated with reference to an X-axis acceleration signal, a motion compensated PPG signal PPGaccY is generated with reference to a Y-axis acceleration signal, and a motion compensated PPG signal PPGaccZ is generated with reference to a Z-axis acceleration signal, combining PPGaccX, PPGaccY, and PPGaccZ to generate a final motion compensated PPG signal, wherein a first weight is applied PPGaccX, a second weight is applied to PPGaccY, and a third weight is applied to PPGaccZ, performing a single Fourier Transform (FT) on the final motion compensated PPG signal to generate a frequency domain PPG signal; and estimating a heart rate based on the frequency domain PPG signal.
Public/Granted literature
- US20190167129A1 Reducing Motion Induced Artifacts in Photoplethysmography (PPG) Signals Public/Granted day:2019-06-06
Information query