Electronic locking device.

摘要

An electronic locking device having a memory circuit (14) for memorizing intrinsic codes and a digital watch (6) to indicate variable codes as time goes. The input-code for unlocking an object is given by calculation of the intrinsic figure and the variable figure. In the control unit (13) the variable figure is deduct from the input-code, and the remainder is identified if it is in agreement with the intrinsic figure. Unlocking is made only when the remainder agrees with the intrinsic figure.