Electronic identification system
作者： Alain Marie-Louis Mole , Jean-Louis Paul Jules Savoyet
DOI:
关键词: Register (music) 、 Terminal (electronics) 、 Record locking 、 AND gate 、 Code (cryptography) 、 Permutation 、 Reading (computer) 、 Computer hardware 、 Shift register 、 Computer science
摘要: The identification system consists of an electronic key comprising a passive memory area (10) and shift register (9) lock capable being coupled with the key. is supplying pulse causing code contained in to be loaded into (9). looped on itself via connection (113). Before reading contents set number clock pulses, counted by control circuit (149) transmitted H terminal, produces series permutations After this permutation phase, AND gate (157) allows data flow out through output terminal S due action additional read pulses which equal bits
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