Patent ID: 11944462
Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 17:
18. A system, comprising:
radar circuitry configured to transmit a single-tone carrier signal and receive a cardiorespiratory motion signal reflected from a monitored subject; and
signal processing circuitry configured to:
determine a respiration displacement from cardiorespiratory motion data based upon the cardiorespiratory motion signal;
adjust notch depths of a harmonics comb notch digital filter (HCNDF) based upon the respiration displacement, wherein notch widths of the HCNDF are based upon a length of a time window over which the cardiorespiratory motion data was determined;
generate filtered cardiorespiratory data by filtering the cardiorespiratory motion data with the HCNDF; and
identify a heart rate (HR) from the filtered cardiorespiratory data.