Radu Stoica 
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Research Staff Member - Cloud StorageZurich Research Laboratory, Zurich, Switzerland +41
447248511
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2022
Calculating corrective read voltage offsets in non-volatile random access memory
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry
US Patent 11,302,403
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry
US Patent 11,302,403
Calibrating pages of memory using partial page read operations
Nikolaos Papandreou, Charalampos Pozidis, Roman Alexander Pletka, Sasa Tomic, Nikolas Ioannou, Radu Ioan Stoica
US Patent 11,334,492
Nikolaos Papandreou, Charalampos Pozidis, Roman Alexander Pletka, Sasa Tomic, Nikolas Ioannou, Radu Ioan Stoica
US Patent 11,334,492
Hybrid read voltage calibration in non-volatile random access memory
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry, Andrew D Walls
US Patent 11,264,103
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry, Andrew D Walls
US Patent 11,264,103
2021
Data placement in write cache architecture supporting read heat data separation
Roman Alexander Pletka, Timothy Fisher, Aaron Daniel Fry, Nikolaos Papandreou, Nikolas Ioannou, Sasa Tomic, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent App. 17/166,939
Roman Alexander Pletka, Timothy Fisher, Aaron Daniel Fry, Nikolaos Papandreou, Nikolas Ioannou, Sasa Tomic, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent App. 17/166,939
Memory controllers for solid-state storage devices
Nikolaos Papandreou, Roman Alexander Pletka, Radu Ioan Stoica, Nikolas Ioannou, Sasa Tomic, Charalampos Pozidis
US Patent 11,188,261
Nikolaos Papandreou, Roman Alexander Pletka, Radu Ioan Stoica, Nikolas Ioannou, Sasa Tomic, Charalampos Pozidis
US Patent 11,188,261
Migrating data between block pools in a storage system
Sasa Tomic, Radu Ioan Stoica, Nikolaos Papandreou, Nikolas Ioannou, Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher
US Patent 11,138,124
Sasa Tomic, Radu Ioan Stoica, Nikolaos Papandreou, Nikolas Ioannou, Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher
US Patent 11,138,124
Updating corrective read voltage offsets in non-volatile random access memory
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Aaron Daniel Fry, Timothy Fisher
US Patent 11,056,199
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Aaron Daniel Fry, Timothy Fisher
US Patent 11,056,199
Managing memory block calibration based on priority levels
Nikolaos Papandreou, Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher, Nikolas Ioannou, Charalampos Pozidis, Radu Ioan Stoica, Sasa Tomic
US Patent 11,036,415
Nikolaos Papandreou, Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher, Nikolas Ioannou, Charalampos Pozidis, Radu Ioan Stoica, Sasa Tomic
US Patent 11,036,415
Managing blocks of memory based on block health using hybrid controllers
Roman Alexander Pletka, Aaron Daniel Fry, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Radu Ioan Stoica, Timothy Fisher
US Patent 11,157,379
Roman Alexander Pletka, Aaron Daniel Fry, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Radu Ioan Stoica, Timothy Fisher
US Patent 11,157,379
Workload based relief valve activation for hybrid controller architectures
Radu Ioan Stoica, Roman Alexander Pletka, Timothy Fisher, Nikolaos Papandreou, Sasa Tomic, Nikolas Ioannou, Aaron Daniel Fry, Charalampos Pozidis, Andrew D Walls
US Patent App. 16/667,702
Radu Ioan Stoica, Roman Alexander Pletka, Timothy Fisher, Nikolaos Papandreou, Sasa Tomic, Nikolas Ioannou, Aaron Daniel Fry, Charalampos Pozidis, Andrew D Walls
US Patent App. 16/667,702
Selectively storing parity data in different types of memory
Nikolas Ioannou, Timothy Fisher, Roman Alexander Pletka, Nikolaos Papandreou, Radu Ioan Stoica, Sasa Tomic, Aaron Daniel Fry
US Patent 11,119,855
Nikolas Ioannou, Timothy Fisher, Roman Alexander Pletka, Nikolaos Papandreou, Radu Ioan Stoica, Sasa Tomic, Aaron Daniel Fry
US Patent 11,119,855
Dynamically adjusting block mode pool sizes
Radu Ioan Stoica, Roman Alexander Pletka, Nikolas Ioannou, Nikolaos Papandreou, Sasa Tomic
US Patent 11,126,360
Radu Ioan Stoica, Roman Alexander Pletka, Nikolas Ioannou, Nikolaos Papandreou, Sasa Tomic
US Patent 11,126,360
Calculating corrective read voltage offsets in non-volatile random access memory
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry
US Patent 10,957,407
Nikolaos Papandreou, Charalampos Pozidis, Nikolas Ioannou, Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Timothy Fisher, Aaron Daniel Fry
US Patent 10,957,407
Increasing data read and/or write heat tracking resolution in storage devices having cache architecture
Nikolas Ioannou, Nikolaos Papandreou, Roman Alexander Pletka, Sasa Tomic, Radu Ioan Stoica, Timothy Fisher, Aaron Daniel Fry, Charalampos Pozidis, Andrew D Walls
US Patent 11,151,053
Nikolas Ioannou, Nikolaos Papandreou, Roman Alexander Pletka, Sasa Tomic, Radu Ioan Stoica, Timothy Fisher, Aaron Daniel Fry, Charalampos Pozidis, Andrew D Walls
US Patent 11,151,053
Adapting memory block pool sizes using hybrid controllers
Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Aaron Daniel Fry, Timothy Fisher, Charalampos Pozidis, Andrew D Walls
US Patent 11,182,089
Roman Alexander Pletka, Radu Ioan Stoica, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Aaron Daniel Fry, Timothy Fisher, Charalampos Pozidis, Andrew D Walls
US Patent 11,182,089
Block mode toggling using hybrid controllers
Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent 11,023,150
Roman Alexander Pletka, Aaron Daniel Fry, Timothy Fisher, Sasa Tomic, Nikolaos Papandreou, Nikolas Ioannou, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent 11,023,150
Data placement in write cache architecture supporting read heat data separation
Roman Alexander Pletka, Timothy Fisher, Aaron Daniel Fry, Nikolaos Papandreou, Nikolas Ioannou, Sasa Tomic, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent 10,977,181
Roman Alexander Pletka, Timothy Fisher, Aaron Daniel Fry, Nikolaos Papandreou, Nikolas Ioannou, Sasa Tomic, Radu Ioan Stoica, Charalampos Pozidis, Andrew D Walls
US Patent 10,977,181
Wear-aware block mode conversion in non-volatile memory
Sasa Tomic, Roman Alexander Pletka, Nikolas Ioannou, Nikolaos Papandreou, Aaron D Fry, Timothy Fisher, Radu Ioan Stoica
US Patent 10,956,049
Sasa Tomic, Roman Alexander Pletka, Nikolas Ioannou, Nikolaos Papandreou, Aaron D Fry, Timothy Fisher, Radu Ioan Stoica
US Patent 10,956,049
Decentralized RAID scheme having distributed parity computation and recovery
Radu I Stoica, Roman A Pletka, Ioannis Koltsidas, Nikolas Ioannou, Antonios K Kourtis, Sasa Tomic, Charalampos Pozidis, Brent W Yardley
US Patent 10,929,229
Radu I Stoica, Roman A Pletka, Ioannis Koltsidas, Nikolas Ioannou, Antonios K Kourtis, Sasa Tomic, Charalampos Pozidis, Brent W Yardley
US Patent 10,929,229
Metadata hardening and parity accumulation for log-structured arrays
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 11,036,580
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 11,036,580
Metadata hardening and parity accumulation for log-structured arrays
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 11,042,437
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 11,042,437
Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 11,016,940
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 11,016,940
2020
Increasing storage efficiency of a data protection technique
Roman A Pletka, Radu I Stoica, Ioannis Koltsidas, Nikolas Ioannou, Sasa Tomic, Antonios K Kourtis, Charalampos Pozidis
US Patent 10,592,173
Roman A Pletka, Radu I Stoica, Ioannis Koltsidas, Nikolas Ioannou, Sasa Tomic, Antonios K Kourtis, Charalampos Pozidis
US Patent 10,592,173
Increasing storage efficiency of a data protection technique
Roman A Pletka, Radu I Stoica, Ioannis Koltsidas, Nikolas Ioannou, Sasa Tomic, Antonios K Kourtis, Charalampos Pozidis
US Patent 10,592,173
Roman A Pletka, Radu I Stoica, Ioannis Koltsidas, Nikolas Ioannou, Sasa Tomic, Antonios K Kourtis, Charalampos Pozidis
US Patent 10,592,173
2019
Metadata hardening and parity accumulation for log-structured arrays
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 10,437,670
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 10,437,670
Workload optimized data deduplication using ghost fingerprints
Nikolas Ioannou, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 10,235,396
Nikolas Ioannou, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 10,235,396
Decentralized raid scheme having distributed parity computation and recovery
Radu I Stoica, Roman A Pletka, Ioannis Koltsidas, Nikolas Ioannou, Antonios K Kourtis, Sasa Tomic, Charalampos Pozidis, Brent W Yardley
US Patent App. 16/015,054
Radu I Stoica, Roman A Pletka, Ioannis Koltsidas, Nikolas Ioannou, Antonios K Kourtis, Sasa Tomic, Charalampos Pozidis, Brent W Yardley
US Patent App. 16/015,054
Metadata hardening and parity accumulation for log-structured arrays
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 10,437,670
Ioannis Koltsidas, Charles J Camp, Nikolas Ioannou, Roman A Pletka, Antonios K Kourtis, Sasa Tomic, Radu I Stoica, Christopher Dennett, Andrew D Walls
US Patent 10,437,670
Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent App. 15/824,625
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent App. 15/824,625
Workload optimized data deduplication using ghost fingerprints
Nikolas Ioannou, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 10,235,396
Nikolas Ioannou, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 10,235,396
2018
Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,892,128
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,892,128
Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,892,128
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,892,128
2017
Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,690,801
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,690,801
Techniques for improving deduplication efficiency in a storage system with multiple storage nodes
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,690,801
Nikolas Ioannou, Ioannis Koltsidas, Roman A Pletka, Cheng-Chung Song, Radu Stoica, Sasa Tomic, Andrew D Walls
US Patent 9,690,801