In an access control system, accesses are controlled which are received from not only the same communication network, but also either one or a plurality of other communication networks. In this access control system, a channel processor of a storage control system accepts a log-in request containing...http://www.google.es/patents/US7127543?utm_source=gb-gplus-sharePatente US7127543 - Access control apparatus and access control method
Access control apparatus and access control method
