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Systems and methods for determining blood oxygen saturation values using complex number encoding
US8948835B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948835-B2 |
| Application number | US-201313896731-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 17, 2013 |
| Priority date | Dec 4, 2002 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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The disclosure includes pulse oximetry systems and methods for determining point-by-point saturation values by encoding photoplethysmographs in the complex domain and processing the complex signals. The systems filter motion artifacts and other noise using a variety of techniques, including statistical analysis such as correlation, or phase filtering.
First claim
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What is claimed is: 1. A physiological monitoring system that computes arterial oxygen saturation in tissue material, the physiological monitoring system comprising: a light emitter which emits light of at least first and second wavelengths; a light detector responsive to light from said light emitter attenuated by body tissue, said light detector providing an output signal indicative of at least first and second intensity signals associated with said at least first and second w…
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Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US8948835B2 cover?
- The disclosure includes pulse oximetry systems and methods for determining point-by-point saturation values by encoding photoplethysmographs in the complex domain and processing the complex signals. The systems filter motion artifacts and other noise using a variety of techniques, including statistical analysis such as correlation, or phase filtering.
- Who is the assignee on this patent?
- Ceracor Lab Inc, Cercacor Lab Inc
- What technology area does this patent fall under?
- Primary CPC classification A61B5/14551. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).