Method and apparatus for providing a visual representation of sleep quality based on ecg signals
AssigneeKoninklijke Philips N.V.
InventorsSaeed Babaeizadeh, Sophia Huai Zhou
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Abstract
A method of providing a graphical representation of sleep quality includes obtaining ECG data for a patient, obtaining a plurality of N-intervals from the ECG data, calculating a plurality of spectral densities based on the plurality of N-N intervals, wherein each spectral density is associated with one of a plurality of successive time windows and is calculated based on certain ones of the N-N intervals associated with the one of the plurality of successive time windows, and generating the graphical representation of sleep quality using the plurality of spectral densities.
Claims26
A method of providing a graphical representation (44) of sleep quality, comprising:
- obtaining ECG data for a patient;
- obtaining a plurality of N-N intervals (40) from the ECG data;
- calculating a plurality of spectral densities (42) based on the plurality of N-N intervals, wherein each spectral density is associated with one of a plurality of successive time windows and is calculated based on certain ones of the N-N intervals associated with the one of the plurality of successive time windows;
- and
- generating the graphical representation (44) of sleep quality using the plurality of spectral densities.
A sleep quality measurement apparatus (2, 60), comprising a processing unit (12) having one or more routines executable by the processing unit and structured to:
- obtain a plurality of N-N intervals (40) from ECG data generated from cardiac signals collected from a patient;
- calculate a plurality of spectral densities (42) based on the plurality of N-N intervals, wherein each spectral density is associated with one of a plurality of successive time windows and is calculated based on certain ones of the N-N intervals associated with the one of the plurality of successive time windows;
- and
- generate a graphical representation (44) of sleep quality using the plurality of spectral densities.
The sleep quality measurement apparatus according to claim 26, wherein first technique is FFT based and the second technique is Lomb-based.
Dependencies are inferred from the claim text.