Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2008-03-04
2008-03-04
Louis-Jacques, Jacques (Department: 2112)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S763000
Reexamination Certificate
active
07340668
ABSTRACT:
A memory controller couples 32-bit data words to and from a DRAM. The DRAM generates error checking and correcting syndromes to check and correct read data. The DRAM generates the syndromes from respective 128-bit data words each formed by 4 32-bit data words written to the DRAM, and thereby achieves a low syndrome bit overhead. The memory controller may write data words to the DRAM having less than 128 bits by first reading 4 32-bit words from the DRAM, substituting the write data for a corresponding number of bits of read data, and writing the new 128-bit word to the DRAM by writing 4 32-bit words.
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Abraham Esaw T.
Dorsey & Whitney LLP
Louis-Jacques Jacques
Micro)n Technology, Inc.
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