FLIGHT INFORMATION PROCESSING SYSTEM Russian patent published in 2001 - IPC

FIELD: checking for abnormal flight parameters, crew's response, and finding cause of accident. SUBSTANCE: system has information processing unit and associated keyboard, display unit, removable data memory, analog- and digital- signal switching units, and analog-to-digital converter. System is also provided with code-pulse data shaping device coupled with digital-signal switching unit and information processing unit. Code-pulse data shaping device has data conversion unit, multiplexer, signal amplifying and shaping unit, and control signal output unit; first input and output of data conversion unit are connected to multiplexer first input and output; its second input and output are connected to input and output of control signal output unit. Multiplexer is connected through digital-signal switching unit to on-board data recording device. System is also provided with acoustic signal generator whose input is connected to information processing unit and off-line power supply. EFFECT: facilitated ground inspections. 4 cl, 3 dwg