Memory system and computer system
AssigneeMegaChips Corporation
InventorShinji TANAKA
Life of this patent
Estimating the term…
Abstract
A memory system according to the present invention includes, in addition to an computing device, a plurality of first blocks that are provided to store information including user information, and first physical addresses not overlapping one another are assigned to, respectively, and a plurality of second blocks that are provided to store first physical addresses of initial defect blocks out of the plurality of first blocks, respectively, wherein the computing device finds the first physical address corresponding a inputted given logical address, based on a given mirror logical address corresponding to the given logical address, and information stored in the second blocks.
Claims16
A memory system comprising:
- a plurality of first blocks that are provided to store information including user information and first physical addresses not overlapping one another are respectively assigned to;
- a plurality of second blocks that are provided to respectively store said first physical addresses of initial defect blocks out of said plurality of first blocks;
- a plurality of user information blocks, out of said plurality of first blocks, that store said user information;
- a plurality of duplicated user information blocks, out of said plurality of first blocks, that each store a duplicate of said user information;
- and
- a computing device that finds said first physical address corresponding to a given logical address, wherein
- said computing device has, as information, mirror logical addresses for accessing said duplicated user information blocks, any one of the mirror logical addresses having a one-on-one correspondence relationship with the logical address inputted to access said user information block, and
- said computing device finds said first physical address corresponding to said given logical address, based on the given mirror logical address corresponding to the inputted given logical address and information stored in said second blocks.
A computer system comprising:
- a computer that generates a logical address;
- a memory having a plurality of first blocks that are provided to store information including user information and first physical addresses not overlapping one another are respectively assigned to, a plurality of user information blocks, out of said plurality of first blocks, that store said user information, and a plurality of duplicated user information blocks, out of said plurality of first blocks, that each store a duplicate of said user information;
- a controller memory having a plurality of second blocks that are provided to respectively store said first physical addresses of initial defect blocks out of said plurality of first blocks, and second physical addresses not overlapping one another are respectively assigned to;
- and
- an computing device that finds said first physical address corresponding to said logical address, wherein
- said computing device has, as information, mirror logical addresses for accessing said duplicated user information blocks, any one of the mirror logical addresses having a one-on-one correspondence relationship with the logical address inputted to access said user information block, and
- said computing device finds said first physical address corresponding to said logical address, based on the given mirror logical address corresponding to the inputted given logical address and information stored in said second blocks.
Dependencies are inferred from the claim text.