A cardiograph has a remote front end which is connected to a host via a cable. The front end includes a clock and an analog-to-digital converter. The converter periodically holds and samples patient ECG signals. Each conversion takes place within the same fixed length of time. A clock signal is transmitted...http://www.google.es/patents/US5101832?utm_source=gb-gplus-sharePatente US5101832 - Method and apparatus for making electrical measurements in the presence of periodic electromagnetic fields
Method and apparatus for making electrical measurements in the presence of ...
