Coded electronic locking devices

Details Coded electronic locking devices Coded electronic locking devices

E - Fixed Constructions

05

B

70/3

E05B 47/00 (2006.01) G07C 9/00 (2006.01)

Patent

CA 1225841

ABSTRACT IMPROVEMENTS IN OR TO CODED ELECTRONIC LOCKING DEVICES The invention relates to a coded locking device actuated by successive pushes on two buttons This device com- prises means for converting the pushes on the two buttons into electrical pulses emitted respectively along two channels and an electronic unit adapted to identify the pulse trains successive- ly emitted in the two channels, to count the numbers of pulses of the different successive trains, to compare each sequence of pulse trains with a memorized reference or code sequence and to emit an unlocking signal S if the two sequences are identical. To form each sequence of actual pulses, the user can start by pressing either one of the two buttons. (Figure 2)

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