Methods and systems for equalizing physiological signals
AssigneeCovidien LP
InventorDaniel Lisogurski
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Abstract
A physiological monitoring system may determine an equalized physiological signal. The system may receive a light signal that includes undesired signal features associated with a channel response. The system may equalize the light signal to mitigate the undesired signal features. The equalization may be performed on an analog signal or a digital signal. The equalization may include, for example, applying an inverse response of the channel response, such that undesired signal features are mitigated while signal features associated with a subject are retained. The equalization may be implemented with, for example, a finite impulse response filter.
Claims22
A method for determining an equalized physiological signal, the method comprising:
- receiving, using processing equipment, a light signal representing light attenuated by a subject, wherein the light signal comprises first and second repeating portions, and wherein the light signal includes an undesired channel response of a channel;
- and
- equalizing, using processing equipment, the light signal to mitigate the undesired channel response.
A system for determining an equalized physiological signal, comprising:
- processing equipment configured to:
- receive a light signal representing light attenuated by a subject, wherein the light signal comprises first and second repeating portions, and wherein the light signal includes an undesired channel response of a channel;
- and
- equalize the light signal to mitigate the undesired channel response.
Dependencies are inferred from the claim text.