A system and a method are provided for reducing noise in Electromyogram (EMG) signals from an external abdominal surface to detect uterine contractions. The system comprises an EMG1 sensor configured to detect a first EMG signal and to generate a corresponding EMG1 input signal and an EMG2 sensor configured...http://www.google.de/patents/US6678551?utm_source=gb-gplus-sharePatent US6678551 - Method and apparatus for noise reduction of electromyogram signals
