Patent ID: 11896386
Assignee: NOX MEDICAL EHF
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 20:
21. One or more non-transitory computer-readable mediums having stored thereon executable instructions that when executed by one or more processors configure a computer system to perform a method for determining whether a first signal and a second signal of a physiological study originate from a same intended subject based, including the following:
extract the first signal from the physiological study, the physiological study being a sleep study, the first signal being a respiratory inductance plethysmography (RIP) signal obtained in the sleep study;
extract the second signal from the physiological study, the second signal being a pulse-measuring signal obtained in the sleep study, and data of the RIP signal and data of the pulse-measuring signal being stored on the one or more memory storage device;
determine a coherency value between components of the RIP signal and components of the pulse-measuring signal; and
determine whether the RIP signal and the pulse-measuring signal originate from the same intended subject based on the determined coherency value,, wherein the one or more processors determines the coherency value by
sampling a first frequency band of the RIP signal,
sampling a second frequency band of the pulse-measuring signal, and
determining whether a synchronous relationship exists between components of the first frequency band of the RIP signal and the second frequency band of the pulse-measuring signal,
wherein the first frequency band and the second frequency band include heart rate and/or harmonics of the heart rate and/or respiratory rate and/or harmonics of the respiratory rate in the subject during the physiological study,, wherein
in a case that the RIP signal and the pulse-measuring signal are determined to originate from the same intended subject, the one or more processors indicates data of the physiological study to be usable for diagnosing a sleep disorder of the intended subject or determining that the intended subject does not suffer from a sleep disorder, and
in a case the case that the RIP signal and the pulse-measuring signal are determined to not originate from the same intended subject, the one or more processors indicates data of the physiological study to be indicated to be falsified.