Error detection/correction and fault detection/recovery – Pulse or data error handling – Memory testing
Reexamination Certificate
2007-06-05
2007-06-05
Lamarre, Guy (Department: 2138)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Memory testing
C714S015000, C714S766000
Reexamination Certificate
active
10335128
ABSTRACT:
A volatile memory stores data related to application program. Data that is the same as the data in the volatile memory is also stored in a nonvolatile memory. When writing the data from the volatile memory to the nonvolatile memory, it is confirmed that the data has no error. A parity bit for each data block in the volatile memory is stored in the volatile memory. It is then decided whether or not there is an error in the data stored in the volatile memory based on the parity bits. If an error is detected in the data stored in the volatile memory then the data is recovered or corrected by using the data in the nonvolatile memory. Data can be thus recovered speedily and reliably.
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“New Fujitsu iPAD brings retailing to the palm of your hand”; Fujitsu Transaction Solutions, Inc.; Press Release dated Jan. 13, 2002 (2 pages).
Fujitsu Frontech Limited
Fujitsu Limited
Lamarre Guy
Tabone, Jr. John J.
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