Inventor
IOANNOU NIKOLAS
CH125 patents
Patents
50 patentsUS10013169B2Jul 3, 2018
Cooperative data deduplication in a solid state storage array
IBM57 citations98
US9251909B1Feb 2, 2016
Background threshold voltage shifting using base and delta threshold voltage shift values in flash memory
IBM48 citations98
US10437670B1Oct 8, 2019
Metadata hardening and parity accumulation for log-structured arrays
IBM66 citations96
US10170195B1Jan 1, 2019
Threshold voltage shifting at a lower bit error rate by intelligently performing dummy configuration reads
IBM37 citations94
US10101931B1Oct 16, 2018
Mitigating read errors following programming in a multi-level non-volatile memory
IBM50 citations94
US9575681B1Feb 21, 2017
Data deduplication with reduced hash computations
IBM22 citations94
US9569306B1Feb 14, 2017
Recovery of multi-page failures in non-volatile memory system
IBM23 citations94
US10884914B2Jan 5, 2021
Regrouping data during relocation to facilitate write amplification reduction
IBM35 citations93
US10453537B1Oct 22, 2019
Techniques for reducing read voltage threshold calibration in non-volatile memory
IBM27 citations93
US11264103B2Mar 1, 2022
Hybrid read voltage calibration in non-volatile random access memory
IBM12 citations86
US11176036B2Nov 16, 2021
Endurance enhancement scheme using memory re-evaluation
IBM10 citations86
US11138124B2Oct 5, 2021
Migrating data between block pools in a storage system
IBM10 citations86
US11023150B2Jun 1, 2021
Block mode toggling using hybrid controllers
IBM11 citations86
US10963327B2Mar 30, 2021
Detecting error count deviations for non-volatile memory blocks for advanced non-volatile memory block management
IBM10 citations86
US10699791B2Jun 30, 2020
Adaptive read voltage threshold calibration in non-volatile memory
IBM17 citations86
US10957407B1Mar 23, 2021
Calculating corrective read voltage offsets in non-volatile random access memory
IBM7 citations84
US9864523B2Jan 9, 2018
Background threshold voltage shifting using base and delta threshold voltage shift values in non-volatile memory
IBM5 citations84
US9857986B2Jan 2, 2018
Wear leveling of a memory array
IBM7 citations84
US9779021B2Oct 3, 2017
Non-volatile memory controller cache architecture with support for separation of data streams
IBM8 citations84
US9710199B2Jul 18, 2017
Non-volatile memory data storage with low read amplification
IBM7 citations84
US9632927B2Apr 25, 2017
Reducing write amplification in solid-state drives by separating allocation of relocate writes from user writes
IBM5 citations84
US9583205B2Feb 28, 2017
Background threshold voltage shifting using base and delta threshold voltage shift values in non-volatile memory
IBM7 citations84
US9563373B2Feb 7, 2017
Detecting error count deviations for non-volatile memory blocks for advanced non-volatile memory block management
IBM9 citations84
US9417809B1Aug 16, 2016
Efficient management of page retirement in non-volatile memory utilizing page retirement classes
IBM10 citations84
US9389792B1Jul 12, 2016
Reducing read-after-write errors in a non-volatile memory system using an old data copy
IBM14 citations84
US9690801B1Jun 27, 2017
Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
IBM9 citations83
US9740609B1Aug 22, 2017
Garbage collection techniques for a data storage system
IBM7 citations82
US11656792B2May 23, 2023
Mirroring data in write caches of a controller of a non-volatile memory
IBM4 citations75
US12093171B2Sep 17, 2024
Proactive data placement in high density storage by a hybrid non-volatile storage controller
IBM2 citations73
US11797199B2Oct 24, 2023
Balancing utilization of memory pools of physical blocks of differing storage densities
IBM2 citations73
US11182089B2Nov 23, 2021
Adapting memory block pool sizes using hybrid controllers
IBM2 citations73
US11152059B2Oct 19, 2021
Calibration of open blocks in NAND flash memory
IBM2 citations73
US11120882B2Sep 14, 2021
Error recovery of data in non-volatile memory during read
IBM6 citations73
US11056199B2Jul 6, 2021
Updating corrective read voltage offsets in non-volatile random access memory
IBM3 citations73
US11036415B2Jun 15, 2021
Managing memory block calibration based on priority levels
IBM2 citations73
US11016693B2May 25, 2021
Block health estimation for wear leveling in non-volatile memories
IBM2 citations73
US10977181B2Apr 13, 2021
Data placement in write cache architecture supporting read heat data separation
IBM2 citations73
US10942662B2Mar 9, 2021
Relocating and/or re-programming blocks of storage space based on calibration frequency and resource utilization
IBM2 citations73
US10824352B2Nov 3, 2020
Reducing unnecessary calibration of a memory unit for which the error count margin has been exceeded
IBM3 citations73
US10658054B2May 19, 2020
Methods for read threshold voltage shifting in non-volatile memory
IBM4 citations73
US10614881B2Apr 7, 2020
Calibration of open blocks in NAND flash memory
IBM3 citations73
US10592110B2Mar 17, 2020
Techniques for dynamically adjusting over-provisioning space of a flash controller based on workload characteristics
IBM3 citations73
US10552063B2Feb 4, 2020
Background mitigation reads in a non-volatile memory system
IBM5 citations73
US10459839B1Oct 29, 2019
Accelerating garbage collection of flushed logical erase blocks in non-volatile memory
IBM6 citations73
US10387317B2Aug 20, 2019
Non-volatile memory controller cache architecture with support for separation of data streams
IBM2 citations73
US10372519B2Aug 6, 2019
Detecting error count deviations for non-volatile memory blocks for advanced non-volatile memory block management
IBM1 citations73
US10365859B2Jul 30, 2019
Storage array management employing a merged background management process
IBM3 citations73
US10222998B2Mar 5, 2019
Background threshold voltage shifting using base and delta threshold voltage shift values in non-volatile memory
IBM1 citations73
US10222997B2Mar 5, 2019
Background threshold voltage shifting using base and delta threshold voltage shift values in non-volatile memory
IBM3 citations73
US10082962B2Sep 25, 2018
Wear leveling of a memory array
IBM4 citations73
Showing the top 50 of 125 patents by PatentIndex Score.