In a driving recorder, angular velocity data and acceleration data of a vehicle are sequentially measured and stored into a memory along with time information, thereby updating the data stored in the memory in sequence. If a shock due to crash or the like occurs at the vehicle, a given time period is...http://www.google.fr/patents/US6067488?utm_source=gb-gplus-shareBrevet US6067488 - Vehicle driving recorder, vehicle travel analyzer and storage medium
Vehicle driving recorder, vehicle travel analyzer and storage medium