Electrical computers and digital processing systems: memory – Storage accessing and control – Memory configuring
Reexamination Certificate
2011-05-17
2011-05-17
Thai, Tuan V (Department: 2185)
Electrical computers and digital processing systems: memory
Storage accessing and control
Memory configuring
C711S161000, C711S162000, C711S165000
Reexamination Certificate
active
07945759
ABSTRACT:
In a memory with block management system, program failure in a block during a time-critical memory operation is handled by continuing the programming operation in a breakout block. Later, at a less critical time, the data recorded in the failed block prior to the interruption is transferred to another block, which could also be the breakout block. The failed block can then be discarded. In this way, when a defective block is encountered during programming, it can be handled without loss of data and without exceeding a specified time limit by having to transfer the stored data in the defective block on the spot. This error handling is especially critical for a garbage collection operation so that the entire operation need not be repeated on a fresh block during a critical time. Subsequently, at an opportune time, the data from the defective block can be salvaged by relocation to another block.
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Davis , Wright, Tremaine, LLP
SanDisk Corporation
Thai Tuan V
Yu Jae U
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