Method and system for real-time digital filtering for electrophysiological and hemodynamic amplifers
US7783339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2006 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jun 24, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3704
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention includes a method and system for real-time digital filtering for electrophysiological and hemodynamic amplifiers. The invention replaces the analog circuits currently used for signal filtering and conditioning in such systems with digital filters that may be implemented in a software application. The method and system includes digitizing the analog signal collected from the patient prior to performing the signal filtering and conditioning. The method and system also includes removing stimulus artifacts, as well as performing sample rate conversion and scaling on the digital signal. The processed digital signals may be used, displayed, saved and converted to analog signal thru digital-to-analog conversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.