Improved method for calibrating non-invasive system for measuring respiration volume of the type including apparatus for providing signals indicative of rib cage and abdominal contributions to respiration volume, device for multiplying the rib cage and abdominal signals by predetermined weighting factors...http://www.google.fr/patents/US4373534?utm_source=gb-gplus-shareBrevet US4373534 - Method and apparatus for calibrating respiration monitoring system
Method and apparatus for calibrating respiration monitoring system
