<p>A system to change security levels is used to change the level of security used in a secured processing system. The system uses a status indicator to designate the security level being implemented. The security level can be upgraded to allow a higher level of security to be implemented with relative ease. However, in order to change from a higher level of security to a lower level of security, an authorization code is utilized to confirm that the change in security is authorized.</p>
申请公布号
EP1183818(B1)
申请公布日期
2006.03.01
申请号
EP20000942716
申请日期
2000.06.08
申请人
GENERAL INSTRUMENT CORPORATION;QIU, XIN;MORONEY, PAUL;SPRUNK, ERIC J.