Implantable medical device with adjustable sigma-delta analog-to-digital conversion clock rate
US7345607B1 · kind B1 · utility
8Cited by
2References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Sep 29, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/498
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An implantable medical device, such as a pacemaker or implantable cardioverter defibrillator, uses digital signal processing channels to process sensed time varying signals representing cardiac activity. Each digital signal processing channels includes a sigma-Delta analog-to-digital converter. The clock rate of each sigma-delta analog-to-digital converter is controlled as a function of a signal detection threshold for its respective digital signal processing channel. For higher threshold levels, a reduced clock rate for the sigma-delta analog-to-digital converter results in reduced power consumption and longer battery life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.