The invention disclosed herein provides methods and materials for observing the state of a sensor, for example those used by diabetic patients to monitor blood glucose levels. Typically a voltage such as a voltage pulse is applied to the sensor in order to solicit a current response from which for example,...http://www.google.ca/patents/US20100169035?utm_source=gb-gplus-sharePatent US20100169035 - METHODS AND SYSTEMS FOR OBSERVING SENSOR PARAMETERS
