Systems and methods for determining respiration information using historical distribution
US9693736B2 · kind B2 · utility
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110References
14Claims
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Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Nov 5, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7278
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A patient monitoring system may generate an autocorrelation sequence for a physiological signal such as a photoplethysmograph signal. A series of peak values may be identified for the autocorrelation sequence. The peak values may be modified based on a historical distribution of a physiological parameter. A physiological parameter such as respiration rate may be determined based on the modified peak values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.