Artifact removal from an electric signal
US7038601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Nov 28, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/316
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a method and apparatus for suppressing interference in an electric signal, particularly for suppressing interference in an electrocardiogram (ECG) signal in connection with magnetic resonance imaging (MRI). In order to improve the accuracy of the suppression, the electric signal is first sampled at a high sampling frequency, whereby a first sequence of samples is obtained. Some of the samples in the first sequence of samples are then selected on the basis of predetermined criteria. The first sequence is then downsampled using the selected samples, whereby a second sequence of samples is obtained. The second sequence forms a digital presentation of the electric signal in which the interference is suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.