A method of maintaining an electronic device, the method including the steps of monitoring ambient an environmental condition such as temperature or humidity; monitoring a self-test initialization criterion; performing an automatic device self-test if the self-test criterion is met and if the environmental...http://www.google.fr/patents/US5899926?utm_source=gb-gplus-shareBrevet US5899926 - Environment-responsive method for maintaining an electronic device such as an external defibrillator
Environment-responsive method for maintaining an electronic device such as ...