Extraction of fetal cardiac signals
US9125577B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 11, 2014 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Aug 11, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/725
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for processing cardiac signals includes accepting, from a sensor system, a set of one or more signals, the signals including components of a desired cardiac signal and components of a substantially periodic interfering signal. The method is applicable for extraction of desired fetal cardiac signals from signals with interference from the maternal cardiac signal. A periodicity of the interfering signal is determined, and one or more iterations of mitigating an effect of a component of the signals that exhibit periodicity at the determined periodicity of the interfering signal are performed. In some examples, the method further includes determining a periodicity of the desired cardiac signal, and performing one or more iterations of enhancing an effect of a component of the signals that exhibit periodicity at the determined periodicity of the desired cardiac signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.