The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 2021
Filed:
Jan. 12, 2018
Tata Consultancy Services Limited, Mumbai, IN;
Shalini Mukhopadhyay, Kolkata, IN;
Nasimuddin Ahmed, Kolkata, IN;
Avik Ghose, Kolkata, IN;
Arijit Sinharay, Kolkata, IN;
Dibyanshu Jaiswal, Kolkata, IN;
Arijit Chowdhury, Kolkata, IN;
Ramu Reddy Vempada, Kolkata, IN;
Tapas Chakravarty, Kolkata, IN;
Arpan Pal, Kolkata, IN;
TATA CONSULTANCY SERVICES LIMITED, Mumbai, IN;
Abstract
Techniques for heart rate estimation are disclosed. In an embodiment, synchronized photoplethysmograph (PPG) and 3-axis acceleration signals are received. Further, the PPG and acceleration signals are partitioned into windows. Furthermore, it is determined whether motion is present in a window of the acceleration signal. Moreover, Fourier transform is performed on the signals to obtain power spectra of the signals in the window when there is motion. Also, it is determined whether a peak of the acceleration signal is present in a range around first highest PPG peak. Further, it is determined whether the peak of the acceleration signal affects heart rate of the user when the peak of the acceleration signal is in the range around the highest PPG peak. The heart rate of the user in the window is then estimated using second highest PPG peak when the peak of the acceleration signal affects heart rate of the user.