- Patent Title: Heart rate estimation apparatus with state sequence optimization
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Application No.: US16442845Application Date: 2019-06-17
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Publication No.: US11129538B2Publication Date: 2021-09-28
- Inventor: Tarkesh Pande , David Patrick Magee , Rajan Narasimha
- 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 Valerie M. Davis; Charles A. Brill; Frank D. Cimino
- Main IPC: A61B5/02
- IPC: A61B5/02 ; A61B5/024 ; A61B5/00

Abstract:
Disclosed examples include heart rate monitor systems and methods to estimate a patient heart rate or rate of another pulsed signal, in which rate hypotheses or states, are identified for a current time window according to digital sample values of the pulsed signal for a current sample time window, and a rate change value is computed for potential rate transitions between states of the current and previous time windows. Transition pair branch metric values are computed as a function of the rate change value and a frequency domain amplitude of the corresponding rate hypothesis for the current time window, and the pulsed signal rate estimate is determined according to a maximum path metric computed according to the branch metric value and a corresponding path metric value for the previous time window.
Public/Granted literature
- US20190298198A1 HEART RATE ESTIMATION APPARATUS WITH STATE SEQUENCE OPTIMIZATION Public/Granted day:2019-10-03
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