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AssigneeKoninklijke Philips N.V.
InventorsPedro Miguel FONSECA, Xi LONG, Nicolaas Gregorius Petrus DEN TEULING, Reinder HAAKMA, Ronaldus Maria AARTS
Estimating the term…
The present disclosure pertains to a system configured to determine one or more parameters based on cardiorespiratory information from a subject and determine sleep stage classifications based on a discriminative undirected probabilistic graphical model such as Conditional Random Fields using the determined parameters. The system is advantageous because sleep is a structured process in which parameters determined for individual epochs are not independent over time and the system determines the sleep stage classifications based on parameters determined for a current epoch, determined relationships between parameters, sleep stage classifications determined for previous epochs, and/or other information. The system does not assume that determined parameters are discriminative during an entire sleep stage, but maybe indicative of a sleep stage transition alone. In some embodiments, the system comprises one or more sensors, one or more physical computer processors, electronic storage, and a user interface.
A system configured to determine sleep stage indicators in a subject for individual epochs of time during a sleep session, the system comprising:
(canceled)
A method for determining sleep stage indicators in a subject for individual epochs of time during a sleep session with a determination system, the system comprising one or more sensors and one or more physical computer processors, the method comprising:
determining, with the one or more physical computer processors, one or more relationships between the one or more cardiorespiratory activity parameters of the subject, the one or more relationships including relationships between the cardiorespiratory coupling parameters wherein said determining the one or more relationships comprises determining a relationship between the first cardiorespiratory activity parameter and the second cardiorespiratory activity parameter for multiple individual epochs of time;
(canceled)
A system configured to determine sleep stage indicators in a subject for individual epochs of time during a sleep session, the system comprising:
means for determining one or more relationships between the one or more cardiorespiratory activity parameters of the subject, the one or more relationships including relationships between the cardiorespiratory coupling parameters, wherein said determining the one or more relationships comprises determining a relationship between the first cardiorespiratory activity parameter and the second cardiorespiratory activity parameter for multiple individual epochs of time;
(canceled)
Dependencies are inferred from the claim text.