System and method for spectral characterization of sleep
US11547349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2015 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Jan 11, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for identifying sleep states of a subject are provided. In some aspects, the method includes acquiring physiological data from a subject over a sleep period using sensors positioned about the subject, and assembling the physiological data into time-series datasets. The method also includes selecting a temporal window in which signals associated with the time-series datasets are substantially stationary, computing a time bandwidth product based on a selected spectral resolution and the selected temporal window, and determining a number of tapers using the computed time bandwidth product. The method further includes computing a spectrogram using the determined number of tapers and the time-series datasets, analyzing the spectrogram to identify signatures of sleep in the subject, and generating, using the identified signatures, a report indicative of sleep states of the subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.