Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2007-12-11
2007-12-11
Kim, Matthew (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
Reexamination Certificate
active
10630031
ABSTRACT:
A method of protecting memory locations in an embedded system using a write filter. The method includes the steps of starting a write filter that intercepts writes to the protected memory locations and stores the writes in a cache; starting a state machine with a change state and a normal state; upon starting the state machine, entering the change state when an indication is present that data needs to be persisted to the protected memory otherwise entering the normal state; in the normal state identifying critical writes to the protected memory and creating at least one update file containing the changes in such writes; and in the change state, applying the changes in the update file and rebooting the system in a manner that persists the changes to the protected memory.
REFERENCES:
patent: 4811293 (1989-03-01), Knothe et al.
patent: 5950205 (1999-09-01), Aviani, Jr.
patent: 6327584 (2001-12-01), Xian et al.
patent: 6523103 (2003-02-01), Page
patent: 2001/0032300 (2001-10-01), Olson
patent: 2003/0084194 (2003-05-01), Ryan
patent: 2003/0182500 (2003-09-01), Raves et al.
patent: 2003/0221083 (2003-11-01), Hill et al.
Keith Matthew Scott
Page John M.
Agilent Technologie,s Inc.
Kim Matthew
Thomas Shane M
LandOfFree
Apparatus and method for control of write filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for control of write filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for control of write filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3886966