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US 2012/0233387 A1Published application
Copyback Optimization for Memory System
AssigneeApple Inc.
InventorsNir Jacob Wakrat, Mark Alan Helm
Life of this patent
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Abstract
In a copyback or read operation for a non-volatile memory subsystem, data page change indicators are used to manage transfers of data pages between a register in non-volatile memory and a controller that is external to the non-volatile memory.
Claims1
A method comprising:
- obtaining a data page from non-volatile memory of a memory subsystem;
- determining if the data page has changed;
- and
- if the data page has changed,
- sending the data page to a controller for processing;
- if the data page is unchanged,
- sending metadata associated with the data page to the controller for processing.
4 more elements
Dependencies are inferred from the claim text.