ELECTRONIC LOCK WITH CHANGEABLE OPENING CODE

摘要

In an electronic lock comprising a key member and a lock member, the lock member has a random access memory (7) for the storage of opening codes authorizing the opening of the lock. The lock member also has a comparator (6) for comparison of a code received from a key member with each of the opening code stored. The lock member further comprises a programmable read only memory (2) for permanent storage of at least one control code which serves to control the code or codes to be registered in the random access memory (7).