An engine analyzer senses the electrical signals of a combustion engine and displays a representation of the signals on a display that is shared with a separately operable computer platform. The representation of the signals is digital and is in real-time. The display of the signals does not affect the...http://www.google.es/patents/US6009360?utm_source=gb-gplus-sharePatente US6009360 - Engine analyzer with real-time digital display
