METHOD FOR MARKING OF OBJECTS Russian patent published in 2001 - IPC

FIELD: methods for marking of objects designed for identification of securities, documents, banknotes, works of art and subjects of industrial production. SUBSTANCE: local coherent radiation of the object content is followed by examination of the transient process, and the parameters of the optimum effect on the object and the criteria of its return to the initial position are determined from the transient response curve of object radiation; logging of the information coded in the object content is accomplished by pulse coherent signals. EFFECT: expanded process abilities due to enhanced protection against forgery of objects of inorganic, organic and biological nature. 3 dwg