Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2004-08-13
2011-11-01
Yu, Jae (Department: 2185)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S161000, C711S162000, C714S006100
Reexamination Certificate
active
08051257
ABSTRACT:
In a nonvolatile memory with block management system, critical data such as control data for the block management system is maintained in duplicates. Various methods are described for robustly writing and reading two copies of critical data in multi-state memory. In another aspect of the invention, a preemptive garbage collection on memory block containing control data avoids an undesirable situation where a large number of such memory blocks need be garbage collected at the same time.
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Bennett Alan David
Bryce Alan Douglas
Gorobets Sergey Anatolievich
Davis , Wright, Tremaine, LLP
SanDisk Technologies Inc.
Yu Jae
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