1
Kenneth P Weiss: Method and apparatus for synchronizing generation of separate, free running, time dependent equipment. M Lawrence Oliverio, December 5, 1989: US04885778 (192 worldwide citation)

An apparatus and method for synchronizing the time definition of the dynamic variables by (a) calculating a first non-predictable code according to a secret predetermined algorithm, the algorithm generating the first non-predictable code on the basis of a first dynamic variable and a unique static v ...


2
Weiss Kenneth P: Methode et appareil de synchronisation dappareils generateurs distincts non asservis, Method and apparatus for synchronizing generation of separate, free running, time dependent equipment. Rsa Security, OGILVY RENAULT SENCRLSRL, June 26, 1990: CA1270957

ABSTRACT OF THE DISCLOSURE In a system and method for comparing and matching non-predictable codes generated by separate computers on the basis ofdynamic variables defined according to time, an apparatus andmethod for synchronizing the time definition of the dynamicvariables by (a) calculating a fir ...