Granted Patent B2

US 12,449,997 · App. 18/608,221 · Granted Oct 21, 2025

Inventor: Jon C. R. Bennett (Sudbury, MA)

Assignee: Innovations In Memory LLC

G06F3/064G06F3/0619G06F3/0689G06F11/1068G06F11/108G11B20/1833G11C29/52G06F3/0611G06F3/0659G06F12/0246G11B2220/60G11C7/1072

Abstract

Claims (36)

1. A method comprising:

receiving data;

determining redundancy data for the received data;

storing the received data and the redundancy data in one or more memory modules of a group of memory modules;

receiving a read data request; and

reconstructing the requested data, based on an erase data operation preventing a read data operation on the one or more memory modules where the requested data is stored, wherein a time delay to reconstruct the requested data is less than a time period where a memory module of the group of memory modules is in an erase state.

2. The method of claim 1 , further comprising:

reconstructing the requested data without a time delay due to the erase data operation.

3. The method of claim 1 , further comprising:

reading sufficient stored data and redundancy data from other memory modules of the group of memory modules; and

reconstructing the requested data based on the reading sufficient stored data and redundancy data.

4. The method of claim 1 , further comprising:

providing the requested data, based on the read data request, prior to completion of the erase data operation.

5. The method of claim 1 , wherein when the redundancy data is single parity data, and the method further comprising: reconstructing the requested data using an exclusive-OR operation.

6. The method of claim 1 , wherein the redundancy data is dual parity data.

7. The method of claim 1 , where memory modules of the group of memory modules are Solid State Disks (SSDs).

8. The method of claim 1 , wherein the memory modules are comprised of NAND FLASH memory circuits.

9. The method of claim 1 , wherein the group of memory modules are configured as a Redundant Array of Independent Disks (RAID) group.

10. A method comprising:

receiving data;

determining redundancy data for the received data;

storing the received data and the redundancy data in one or more memory modules of a group of memory modules;

receiving a read data request; and

reconstructing the requested data, based on a write data operation preventing a read data operation on the one or more memory modules where the requested data is stored, wherein a time delay to reconstruct the requested data is less than a time period where a memory module of the group of memory modules is in a write state.

11. The method of claim 10 , further comprising:

reconstructing the requested data without a time delay due to the write data operation.

12. The method of claim 10 , further comprising:

reading sufficient stored data and redundancy data from other memory modules of the group of memory modules; and

reconstructing the requested data based on the reading sufficient stored data and redundancy data.

13. The method of claim 10 , further comprising:

providing the requested data, based on the read data request, prior to completion of the write data operation.

14. The method of claim 10 , wherein when the redundancy data is single parity data, and the method further comprising: reconstructing the requested data using an exclusive-OR operation.

15. The method of claim 10 , wherein the redundancy data is dual parity data.

16. The method of claim 10 , where memory modules of the group of memory modules are Solid State Disks (SSDs).

17. The method of claim 10 , wherein the memory modules are comprised of NAND FLASH memory circuits.

18. The method of claim 10 , wherein the group of memory modules are configured as a Redundant Array of Independent Disks (RAID) group.

Continuity (9)

References Cited (161)