Inventor · disambiguated record
Yuval Ofek
Also filed as: OFEK YUVAL · OFEK YUVAL Y O
69 granted patents·3 pending applications·13,911 citations·filing 1995–2005
99Inventor score
Top patents by PatentIndex Score
72 records- 0199US6598134B2System and method for on-line, real time, data migrationEMC CORP·Filed 2001·Granted Jul 22, 2003·214 cites·19 claims
- 0299US6581143B2Data processing method and apparatus for enabling independent access to replicated dataEMC CORP·Filed 2002·Granted Jun 17, 2003·404 cites·13 claims
- 0399US6502205B1Asynchronous remote data mirroring systemEMC CORP·Filed 2000·Granted Dec 31, 2002·603 cites·8 claims
- 0499US6356977B2System and method for on-line, real time, data migrationEMC CORP·Filed 2000·Granted Mar 12, 2002·186 cites·18 claims
- 0599US6173377B1Remote data mirroringEMC CORP·Filed 1998·Granted Jan 9, 2001·523 cites·12 claims
- 0699US5901327ABundling of write data from channel commands in a command chain for transmission over a data link between data storage systems for remote data mirroringEMC CORP·Filed 1997·Granted May 4, 1999·1.5k cites·31 claims
- 0799US5742792ARemote data mirroringEMC CORP·Filed 1996·Granted Apr 21, 1998·1.4k cites·38 claims
- 0898US7240238B2Remote data mirroringEMC CORP·Filed 2005·Granted Jul 3, 2007·68 cites·24 claims
- 0998US6487561B1Apparatus and methods for copying, backing up, and restoring data using a backup segment size larger than the storage block sizeEMC CORP·Filed 1998·Granted Nov 26, 2002·1.4k cites·21 claims
- 1098US6108748ASystem and method for on-line, real time, data migrationEMC CORP·Filed 1997·Granted Aug 22, 2000·386 cites·11 claims
- 1198US6101497AMethod and apparatus for independent and simultaneous access to a common data setEMC CORP·Filed 1997·Granted Aug 8, 2000·421 cites·10 claims
- 1298US6052797ARemotely mirrored data storage system with a count indicative of data consistencyEMC CORP·Filed 1998·Granted Apr 18, 2000·416 cites·24 claims
- 1398US6044444ARemote data mirroring having preselection of automatic recovery or intervention required when a disruption is detectedEMC CORP·Filed 1997·Granted Mar 28, 2000·453 cites·19 claims
- 1498US5857208AMethod and apparatus for performing point in time backup operation in a computer systemEMC CORP·Filed 1996·Granted Jan 5, 1999·479 cites·15 claims
- 1597US7107395B1Apparatus and methods for operating a computer storage systemEMC CORP·Filed 1998·Granted Sep 12, 2006·327 cites·20 claims
- 1697US7055059B2Remote data mirroringEMC CORP·Filed 2002·Granted May 30, 2006·110 cites·24 claims
- 1797US6397308B1Apparatus and method for differential backup and restoration of data in a computer storage systemEMC CORP·Filed 1998·Granted May 28, 2002·441 cites·24 claims
- 1897US6209002B1Method and apparatus for cascading data through redundant data storage unitsEMC CORP·Filed 1999·Granted Mar 27, 2001·322 cites·36 claims
- 1997US5889935ADisaster control features for remote data mirroringEMC CORP·Filed 1997·Granted Mar 30, 1999·327 cites·45 claims
- 2097US5680640ASystem for migrating data by selecting a first or second transfer means based on the status of a data element map initialized to a predetermined stateEMC CORP·Filed 1995·Granted Oct 21, 1997·314 cites·26 claims
- 2196US6587935B2Method and apparatus for mirroring data in a remote data storage systemEMC CORP·Filed 2002·Granted Jul 1, 2003·105 cites·21 claims
- 2295US6920537B2Apparatus and methods for copying, backing up and restoring logical objects in a computer storage system by transferring blocks out of order or in parallelEMC CORP·Filed 2002·Granted Jul 19, 2005·146 cites·13 claims
- 2395US6654752B2Method and apparatus for independent and simultaneous access to a common data setEMC CORP·Filed 2002·Granted Nov 25, 2003·88 cites·10 claims
- 2494US6240486B1System and method for on-line, real time, data migrationEMC CORP·Filed 1999·Granted May 29, 2001·175 cites·6 claims
- 2593US6549921B1Method and apparatus for performing point in time backup operation in a computer systemEMC CORP·Filed 2000·Granted Apr 15, 2003·81 cites·32 claims
- 2693US5933653AMethod and apparatus for mirroring data in a remote data storage systemEMC CORP·Filed 1996·Granted Aug 3, 1999·226 cites·18 claims
- 2793US5896548AData transferring system having foreground and background modes and upon detecting significant pattern of access in foreground mode to change background mode control parametersEMC CORP·Filed 1997·Granted Apr 20, 1999·141 cites·34 claims
- 2892US6442551B1Method and apparatus for independent and simultaneous access to a common data setEMC CORP·Filed 2000·Granted Aug 27, 2002·62 cites·10 claims
- 2992US6385706B1Apparatus and methods for copying a logical object to a primary storage device using a map of storage locationsEMC CORP·Filed 1998·Granted May 7, 2002·205 cites·23 claims
- 3092US6092066AMethod and apparatus for independent operation of a remote data facilityEMC CORP·Filed 1996·Granted Jul 18, 2000·209 cites·27 claims
- 3191US5819310AMethod and apparatus for reading data from mirrored logical volumes on physical disk drivesEMC CORP·Filed 1996·Granted Oct 6, 1998·164 cites·29 claims
- 3290US5987566ARedundant storage with mirroring by logical volume with diverse reading processEMC CORP·Filed 1998·Granted Nov 16, 1999·147 cites·13 claims
- 3387US6728836B1Segmenting cache to provide varying service levelsEMC CORP·Filed 2000·Granted Apr 27, 2004·47 cites·18 claims
- 3487US6543001B2Method and apparatus for maintaining data coherencyEMC CORP·Filed 2001·Granted Apr 1, 2003·43 cites·20 claims
- 3586US6687718B2Method and apparatus for cascading data through redundant data storage unitsEMC CORP·Filed 2000·Granted Feb 3, 2004·35 cites·36 claims
- 3686US6308284B1Method and apparatus for maintaining data coherencyEMC CORP·Filed 1998·Granted Oct 23, 2001·113 cites·20 claims
- 3785US5592432ACache management system using time stamping for replacement queueEMC CORP·Filed 1995·Granted Jan 7, 1997·101 cites·13 claims
- 3884US5960216AMethod and apparatus for interfacing two remotely disposed devices coupled via a transmission mediumEMC CORP·Filed 1996·Granted Sep 28, 1999·55 cites·58 claims
- 3982US6557079B1Remote data facility prefetchEMC CORP·Filed 1999·Granted Apr 29, 2003·97 cites·16 claims
- 4082US6487562B1Dynamically modifying system parameters in data storage systemEMC CORP·Filed 1999·Granted Nov 26, 2002·98 cites·18 claims
- 4182US6112257ADynamic adjustment of mirror service policy for logical volumes in a disk drive system based on collected statisticsEMC CORP·Filed 1997·Granted Aug 29, 2000·98 cites·22 claims
- 4281US6898672B2Segmenting cache to provide varying service levelsEMC CORP·Filed 2004·Granted May 24, 2005·32 cites·32 claims
- 4381US6584545B2Maximizing sequential output in a disk array storage deviceEMC CORP·Filed 2002·Granted Jun 24, 2003·27 cites·27 claims
- 4480US6910098B2Method and apparatus for maintaining data coherencyEMC CORP·Filed 2003·Granted Jun 21, 2005·30 cites·20 claims
- 4580US6711649B1Load balancing on disk array storage deviceEMC CORP·Filed 1999·Granted Mar 23, 2004·100 cites·34 claims
- 4678US5751993ACache management systemEMC CORP·Filed 1995·Granted May 12, 1998·86 cites·6 claims
- 4777US6457102B1Cache using multiple LRU'sEMC CORP·Filed 1999·Granted Sep 24, 2002·67 cites·27 claims
- 4876US6477627B1Method and apparatus for mirroring data in a remote data storage systemEMC CORP·Filed 1999·Granted Nov 5, 2002·63 cites·11 claims
- 4976US6237063B1Load balancing method for exchanging data in different physical disk storage devices in a disk array storage device independently of data processing system operationEMC CORP·Filed 1998·Granted May 22, 2001·71 cites·16 claims
- 5076US6185661B1Worm magnetic storage deviceEMC CORP·Filed 1998·Granted Feb 6, 2001·73 cites·18 claims
Showing the top 50 of 72 patent records by PatentIndex Score.
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