Blind adaptive filter extraction of fetal electrocardiogram signal estimate
US7747316B2 · kind B2 · utility
2Cited by
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20Claims
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Key dates
| Filing date | Jan 27, 2006 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Mar 12, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/726
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A blind adaptive filter of an apparatus in an example employs a frequency domain ECG-feature vector and a time domain ECG feature vector with a maternal ECG parameter estimate and a set of candidate fetal ECG estimates that satisfy the frequency domain ECG-feature-vector, to extract a fetal ECG signal estimate from raw abdominal ECG signals of a pregnant female. The fetal ECG signal estimate satisfies the frequency domain ECG feature-vector and the time domain ECG feature vector.
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