Access control equipment for closed site e.g. building, has re-writable keys with information programming unit having comparing unit to compare patrimony code transmitted by auxiliary memory with patrimony code entered by user

摘要

The equipment has re-writable keys (2) with an information programming unit (3) having a non re-writable auxiliary memory (4) to transmit a unique patrimony code. The programming unit has a comparing unit to compare the patrimony code transmitted by the memory with a patrimony code entered by a user for authorizing the user. The user is allowed to access site when the patrimony codes are identical.