Methods for migrating data to avoid read disturbance and apparatuses using the same
AssigneeShannon Systems Ltd.
InventorTing-Kuan Lin
Life of this patent
Estimating the term…
Abstract
A method for migrating data to avoid read disturbance is introduced to contain the following steps: finding a singular physical-block from physical blocks; performing a test read on data of the ith physical page of the singular physical-block; determining whether the data of the ith physical page of the singular physical-block has passed the test read; and when the data of the ith physical page of the singular physical-block has not passed the test read, moving or copying data of the ith physical page and at least one neighboring physical-page of the singular physical-block to an available physical-block.
Claims20
A method for migrating data to avoid read disturbance, comprising:
- finding a singular physical-block from a plurality of physical blocks;
- performing a test read on data of the ith physical page of the singular physical-block, wherein i is an integer that is greater than or equal to 0;
- determining whether the data of the ith physical page of the singular physical-block has passed the test read;
- and
- when the data of the ith physical page of the singular physical-block has not passed the test read, moving or copying data of the ith physical page and at least one neighboring physical-page of the singular physical-block to an available physical-block.
An apparatus for migrating data to avoid read disturbance, comprising:
- an access interface coupled to a storage unit comprising a plurality of physical blocks;
- and
- a processing unit, coupled to the access interface, finding a singular physical-block from the physical blocks;
- performing a test read on data of the ith physical page of the singular physical-block, wherein i is an integer that is greater than or equal to 0;
- determining whether the data of the ith physical page of the singular physical-block has passed the test read;
- and when the data of the ith physical page of the singular physical-block has not passed the test read, directing the access interface to move or copy data of the ith physical page and at least one neighboring physical-page of the singular physical-block to an available physical-block.
Dependencies are inferred from the claim text.