US 12,324,652 B2
Apparatus, system, and method for monitoring physiological signs
Conor Heneghan, San Diego, CA (US); Conor Hanley, Dublin (IE); Niall Fox, Clonskeagh (IE); and Philip De Chazal, Blue Mountains (AU)
Assigned to ResMed Sensor Technologies Limited, (IE)
Filed by ResMed Sensor Technologies Limited, Sandyford (IE)
Filed on May 23, 2023, as Appl. No. 18/321,877.
Application 18/321,877 is a continuation of application No. 16/946,740, filed on Jul. 2, 2020, granted, now 11,690,519.
Application 16/946,740 is a continuation of application No. 14/029,423, filed on Sep. 17, 2013, granted, now 10,729,332, issued on Aug. 4, 2020.
Application 14/029,423 is a continuation of application No. 12/302,704, granted, now 8,562,526, issued on Oct. 22, 2013, previously published as PCT/US2007/070196, filed on Jun. 1, 2007.
Claims priority of provisional application 60/803,657, filed on Jun. 1, 2006.
Prior Publication US 2023/0293021 A1, Sep. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/0507 (2021.01); A61B 5/08 (2006.01); A61B 5/113 (2006.01); G16H 40/63 (2018.01); G16H 50/20 (2018.01)
CPC A61B 5/0205 (2013.01) [A61B 5/0507 (2013.01); A61B 5/0816 (2013.01); A61B 5/0826 (2013.01); A61B 5/113 (2013.01); A61B 5/4818 (2013.01); G16H 40/63 (2018.01); G16H 50/20 (2018.01); A61B 5/7264 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for alerting a subject in sleep, the system comprising:
a first sensor configured to detect a portion of a first output signal reflected from the subject, the first output signal reflected from the subject comprising radio frequency energy generated by a transmitter collocated with the first sensor, the detected portion of the first output signal being processed to obtain a bodily motion signal and a respiratory signal; and
one or more processors configured to:
derive a plurality of statistical features for a first time period and a second time period, the plurality of derived statistical features comprising statistical bodily motion features derived from the bodily motion signal, the plurality of derived statistical features further comprising statistical respiratory features derived from the respiratory signal;
selectively combine two or more of the plurality of derived statistical features to estimate one or more parameters that provide a measure concerning sleep, the one or more parameters comprising a parameter that provides a measure of sleep state;
control emitting output by the system comprising a visual indication, the visual indication comprising an adjustable level of light; and
control emitting further output by the system in response to at least one parameter of the one or more parameters having a predetermined classification, the further output comprising an audible alarm.