Method and system for sleep detection
First Claim
1. A computer-implemented method, automatically implemented by one or more processors of a computing device, for automatically characterizing digitized breath sounds recorded from a subject over time as indicative of the subject being one of asleep and awake to accurately assess a potential sleep disorder of the candidate, the method comprising:
- identifying, by the one or more processors, individual breathing cycles in a given segment of said recorded breath sounds;
calculating, by the one or more processors, one or more preset breathing cycle characteristics from said identified breathing cycles;
evaluating, by the one or more processors, a relative regularity of said calculated preset breathing cycle characteristics for said given segment; and
upon said relative regularity satisfying a preset high regularity condition, outputting, by the one or more processors, a sleep status indicator indicating that the subject was likely asleep during said segment;
otherwise or upon said relative regularity satisfying a preset low regularity condition, outputting, by the one or more processors, a wake status indicator indicating that the subject was likely awake during said segment; and
compiling, by the one or more processors, each said wake status indicator or said sleep status indicator for each said given segment to compute and output an actual sleep time to be associated with said breath sound recording during which the subject is asleep in accurately assessing the potential sleep disorder of the candidate.
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Abstract
Described herein are various embodiments of a method and system for sleep detection. For example, in one embodiment, a method is described for automatically characterizing digitized breath sounds recorded from a subject over time as indicative of the subject being one of asleep and awake. This method comprises identify individual breathing cycles in a given segment of the recorded breath sounds; calculating one or more preset breathing cycle characteristics from the identified breathing cycles; evaluating a relative regularity of the calculated characteristics for the given segment; and upon the relative regularity satisfying a preset high regularity condition, outputting a sleep status indicator that the subject was likely asleep during the segment, otherwise outputting a wake indicator that the subject was likely awake during the segment.
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Citations
13 Claims
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1. A computer-implemented method, automatically implemented by one or more processors of a computing device, for automatically characterizing digitized breath sounds recorded from a subject over time as indicative of the subject being one of asleep and awake to accurately assess a potential sleep disorder of the candidate, the method comprising:
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identifying, by the one or more processors, individual breathing cycles in a given segment of said recorded breath sounds; calculating, by the one or more processors, one or more preset breathing cycle characteristics from said identified breathing cycles; evaluating, by the one or more processors, a relative regularity of said calculated preset breathing cycle characteristics for said given segment; and upon said relative regularity satisfying a preset high regularity condition, outputting, by the one or more processors, a sleep status indicator indicating that the subject was likely asleep during said segment; otherwise or upon said relative regularity satisfying a preset low regularity condition, outputting, by the one or more processors, a wake status indicator indicating that the subject was likely awake during said segment; and compiling, by the one or more processors, each said wake status indicator or said sleep status indicator for each said given segment to compute and output an actual sleep time to be associated with said breath sound recording during which the subject is asleep in accurately assessing the potential sleep disorder of the candidate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer-implemented method, automatically implemented by one or more processors of a computing device, for automatically characterizing digitized breath sounds recorded from a subject over time as indicative of one of a sleep status or a wake status to accurately assess a potential sleep disorder of the candidate, the method comprising:
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identifying, by the one or more processors, individual breathing cycles in a given segment of said recorded breath sounds; calculating, by the one or more processors, a relative regularity of said identified breathing cycles; comparing, by the one or more processors, said relative regularity with one or more preset regularity conditions to output at least one of a high regularity and a low regularity indicator indicative of the sleep status and the wake status, respectively, for said given segment; and confirming, by the one or more processors, in response to said high regularity indicator, the wake status indicated by said high regularity indicator for said given segment, by at least one of; identifying an instance of snoring during said given segment by extracting one or more designated snore-related features from said recorded breath sounds in said given segment previously determined to distinguish snoring sounds from non-snoring sounds;
oridentifying an instance of relatively high upper airway relaxation during said given segment by extracting one or more designated upper airway relaxation-related features from said recorded breath sounds in said given segment previously determined to distinguish relatively high upper airway narrowing instances from relatively low upper airway narrowing instances; and compiling, by the one or more processors, each said wake status or said sleep status for each said given segment to compute an actual sleep time to be associated with said breath sound recording during which the subject is asleep in accurately assessing the potential sleep disorder of the candidate. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification