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Method and apparatus for noise reduction of electromyogram signals

  • US 20030125635A1
  • Filed: 12/27/2001
  • Published: 07/03/2003
  • Est. Priority Date: 12/27/2001
  • Status: Active Grant
First Claim
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1. A system for processing electromyogram (EMG) input signals from an external abdominal surface to detect uterine contractions, said system comprising:

  • an EMG1 sensor configured to detect a first EMG signal and to generate a corresponding EMG1 input signal;

    an EMG2 sensor configured to detect a second EMG signal and to generate a corresponding EMG2 input signal; and

    a signal processor coupled to said EMG1 sensor and said EMG2 sensor, said signal processor being configured to process said EMG1 input signal and said EMG2 input signal with a filter and sum technique to generate an EMG1 reduced noise signal that represents a magnitude of at least one contraction event and periodicity of a set of multiple contraction events.

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