Registers – Records – Conductive
Reexamination Certificate
2008-03-04
2008-03-04
Lee, Michael G. (Department: 2876)
Registers
Records
Conductive
C235S375000, C235S380000, C235S382000, C235S383000
Reexamination Certificate
active
07337976
ABSTRACT:
The object of the present invention is to provide a semiconductor memory which executes executing multiple application programs and duplicating important data from one application program into another application program in security. An IC card (200) is one example of the semiconductor memory of the present invention, and executes executing multiple application programs. The IC card (200) includes: a memory area (331) for storing data relating to a library APL (301); a memory area (332) for storing data relating to a public pool APL (302); a security level setting unit (603) which identifies respective security levels of the library APL (301) and the public pool APL (302) for the data relating to these application programs, based on a criterion for identifying the security level of an application program for the data relating to it; and a data operation unit (608) which duplicates data A stored in the memory area (331) and stores the duplicated data A into the memory area (332), without taking the data A outside of the IC card (200), in the case where the relationship between the two security levels identified by the security level setting unit (603) meets a predetermined condition.
REFERENCES:
patent: 5055661 (1991-10-01), Gochi
patent: 5578808 (1996-11-01), Taylor
patent: 5813009 (1998-09-01), Johnson et al.
patent: 6766961 (2004-07-01), Hosogoe et al.
patent: 6957256 (2005-10-01), Bradley et al.
patent: 2004/0049513 (2004-03-01), Yakir et al.
patent: 2 356 469 (2001-05-01), None
patent: 98/52159 (1998-11-01), None
patent: 00/45262 (2000-08-01), None
Kawamura Hiromi
Ueda Eiji
Lee Michael G.
Matsushita Electric - Industrial Co., Ltd.
Vo Tuyen Kim
Wenderoth , Lind & Ponack, L.L.P.
LandOfFree
Semiconductor memory does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2789730