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AssigneeMicrosoft Corporation
InventorsAlexander Frank, Mark Light, William Westerinen
Estimating the term…
A system and method for maintaining persistent data during an unexpected power loss uses a memory controller and a supplemental power source. An entity running on the computer, for example, an application program, a utility, the operating system or other entity, may identify data for preservation using an application program interface. The application program interface may be provided by the memory controller. A sensor determines when an unexpected power loss has occurred and signals the memory controller. Using power from the supplemental power source, i.e. a battery or capacitor, the memory controller copies the identified data to a non-volatile memory. The memory controller may set a flag to indicate that preserved data is available for later recovery.
A method of preserving data in a computer when a power loss occurs comprising:
A computer adapted for preserving data upon a power loss comprising:
A memory controller for use in a computer adapted for preserving data upon a power loss, the memory controller comprising:
The memory controller of claim.14 wherein the information corresponding to the first data is a range of memory comprising the first data.
The memory controller of claim. 14 wherein the memory further comprises a location wherein the logic unit sets a flag at the location indicating when the first data has been preserved.
Dependencies are inferred from the claim text.