A flight recorder (MPV) is contained within a two-walled chassis (11, 13), of which the walls are separated by a fire-resistant material (12). The memory means consist of hybrid circuits (H1-H8) of the EEPROM type. These are associated with a control card that may act as a fuse. The hybrid circuits (H1-H8)...http://www.google.ca/patents/US5053967?utm_source=gb-gplus-sharePatent US5053967 - Flight recorder with static electronic memory
