Systems and methods for determining respiration information from a photoplethysmograph
US9119597B2 · kind B2 · utility
23Cited by
94References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Aug 9, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7232
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A signal representing physiological information may include information related to respiration. A patient monitoring system may generate a plurality of autocorrelation sequences from the signal and combine the autocorrelation sequences to generate a combined autocorrelation sequence. The combined autocorrelation sequence may be analyzed to identify one or more peaks that may correspond to respiration information. Respiration information such as respiration rate may be determined based on the one or more peaks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.