Method for recognizing a power failure in a data memory and...

Details Method for recognizing a power failure in a data memory and... Method for recognizing a power failure in a data memory and...

2006-12-12

2011-12-06

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

08074120

ABSTRACT:
To detect a power failure in a volatile data memory containing useful data units and test data units associated with the useful data units, the associated test data unit is also read when the useful data unit is read-accessed, and a decision is made as to whether the useful data unit is corrupted based on the test data unit. A power failure is identified when at least two read useful data units within a predefined number of successive read accesses are found to be corrupted.

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