This is a method and apparatus for the automated discrimination of cardiac events of interest, including P-waves, R-waves, T-waves, and specific arrhythmic sequences, in EGM signals for data storage in an implantable monitor or to control operations of an implantable cardiac stimulator through...http://www.google.de/patents/US5778881?utm_source=gb-gplus-sharePatent US5778881 - Method and apparatus for discriminating P and R waves
