DIGITAL DEVICE FOR IDENTIFYING HUMAN OPERATOR Russian patent published in 2004 - IPC

FIELD: computer engineering; organization of authorized access to computer system resources. SUBSTANCE: device that incorporates provision for preventing unauthorized access to computer system resources has password memory unit, comparison circuit, first and second flip-flops, first and second AND gates, typesetter, group of OR gates, register, nonlinear functional converter, first subtracting counter, first and second AND gates, first inverted-input OR gate, second OR gate, second adding counter, decoder, and clock generator. EFFECT: enhanced reliability of identification system. 1 cl, 1 dwg