Inventor · disambiguated record
Raffi Codilian
Also filed as: CODILIAN RAFFI
95 granted patents·9,248 citations·filing 1992–2010
99Inventor score
Files withWESTERN DIGITAL TECH INC82WESTERN DIGITAL CORP10CODILIAN RAFFI1ONG CHOO-BHIN1WESTERN DIGITAL SEA PTE LTD1
Top patents by PatentIndex Score
95 records- 0199US6714371B1Method and disk drive for shock estimation and write termination controlWESTERN DIGITAL TECH INC·Filed 2001·Granted Mar 30, 2004·158 cites·16 claims
- 0298US7903369B1Method of fabricating disk drives using a common disk drive base with an attached weight plate, and a disk drive including the sameWESTERN DIGITAL TECH INC·Filed 2009·Granted Mar 8, 2011·50 cites·20 claims
- 0398US7274639B1Disk drive performing multi-level prioritization of entries in a suspect sector list to identify and relocate defective data sectorsWESTERN DIGITAL TECH INC·Filed 2004·Granted Sep 25, 2007·150 cites·44 claims
- 0498US7088538B1Adaptively estimating a read access time to a second track based upon the binned radial position of the second track within a rotating media storage deviceWESTERN DIGITAL TECH INC·Filed 2002·Granted Aug 8, 2006·139 cites·27 claims
- 0598US7064918B1Reducing head gain calibration time in a disk driveWESTERN DIGITAL TECH INC·Filed 2003·Granted Jun 20, 2006·111 cites·11 claims
- 0698US7050258B1Disk drive and method for improved disk rotation controlWESTERN DIGITAL TECH INC·Filed 2002·Granted May 23, 2006·114 cites·24 claims
- 0798US6952322B1Disk drive reading servo sectors recorded at a relative offset on multiple disk surfaces to increase the servo sample rateWESTERN DIGITAL TECH INC·Filed 2002·Granted Oct 4, 2005·143 cites·32 claims
- 0898US6920004B1Method for adjusting a delay time for opening a servo sector detection window in a disk drive having a spiral trackWESTERN DIGITAL TECH INC·Filed 2002·Granted Jul 19, 2005·126 cites·6 claims
- 0998US6892249B1Dependently adjusting at least three operating levels of a disk drive by dependently adjusting a plurality of disk drive parametersWESTERN DIGITAL TECH INC·Filed 2002·Granted May 10, 2005·165 cites·22 claims
- 1098US6882496B1Method for adaptively allocating data storage tracks in a disk drive to improve seek performanceWESTERN DIGITAL TECH INC·Filed 2003·Granted Apr 19, 2005·107 cites·7 claims
- 1198US6847502B1Repeatable runout determination within a rotating media storage deviceWESTERN DIGITAL TECH INC·Filed 2002·Granted Jan 25, 2005·116 cites·45 claims
- 1298US6738220B1Servo settling by utilization of a bias torque offset value which depends on the memory of previous seek operationsWESTERN DIGITAL TECH INC·Filed 2001·Granted May 18, 2004·120 cites·31 claims
- 1398US6735041B1Method for seeking in a magnetic disk drive having a spiral trackWESTERN DIGITAL TECH INC·Filed 2002·Granted May 11, 2004·110 cites·16 claims
- 1498US6731450B1Disk drive control system and method for determining the temperature of an actuator coilWESTERN DIGITAL TECH INC·Filed 2000·Granted May 4, 2004·130 cites·8 claims
- 1598US6545835B1Method and apparatus for RRO learning before and after shipping to cancel RRO in a disk driveWESTERN DIGITAL TECH INC·Filed 2000·Granted Apr 8, 2003·146 cites·30 claims
- 1698US6493169B1Disk drive employing spindle motor commutation time variation for reducing acoustic noiseWESTERN DIGITAL TECH INC·Filed 2000·Granted Dec 10, 2002·162 cites·16 claims
- 1798US6091564ADisk drive with calibration bursts that are recorded on a spiral and method of recording the sameWESTERN DIGITAL CORP·Filed 1998·Granted Jul 18, 2000·225 cites·21 claims
- 1897US7120806B1Method for setting a power operating mode transition interval of a disk drive in a mobile device based on application categoryWESTERN DIGITAL TECH INC·Filed 2001·Granted Oct 10, 2006·206 cites·32 claims
- 1997US7035026B2Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writerWESTERN DIGITAL TECH INC·Filed 2004·Granted Apr 25, 2006·115 cites·10 claims
- 2097US6975480B1Method for determining repeatable runout cancellation values in a magnetic disk drive using filteringWESTERN DIGITAL TECH INC·Filed 2002·Granted Dec 13, 2005·115 cites·4 claims
- 2197US6967804B1Shock event error logging in a disk driveWESTERN DIGITAL TECH INC·Filed 2001·Granted Nov 22, 2005·84 cites·34 claims
- 2297US6968422B1Disk drive employing a modified rotational position optimization algorithm to account for external vibrationsWESTERN DIGITAL TECH INC·Filed 2003·Granted Nov 22, 2005·142 cites·42 claims
- 2397US6967811B1Disk drive having first and second seek operating modes for controlling voice coil motor temperature riseWESTERN DIGITAL TECH INC·Filed 2004·Granted Nov 22, 2005·120 cites·17 claims
- 2497US6958881B1Disk drive control system having a servo processing accelerator circuitWESTERN DIGITAL TECH INC·Filed 2003·Granted Oct 25, 2005·116 cites·17 claims
- 2597US6937423B1Reducing effects of rotational vibration in disk driveWESTERN DIGITAL TECH INC·Filed 2004·Granted Aug 30, 2005·121 cites·19 claims
- 2697US6914743B1Vibration cancellation in a disk drive by using an acceleration sensor and adaptively adjusting its gain to minimize external acceleration effectsWESTERN DIGITAL TECH INC·Filed 2000·Granted Jul 5, 2005·146 cites·6 claims
- 2797US6892313B1Method for predictive power management for operating a disk drive in a mobile device to optimize power usageWESTERN DIGITAL TECH INC·Filed 2001·Granted May 10, 2005·207 cites·42 claims
- 2897US6885514B1Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writerWESTERN DIGITAL TECH INC·Filed 2001·Granted Apr 26, 2005·134 cites·11 claims
- 2997US6781780B1Method and system for preventing data loss from an off-track write condition in a disk drive by rewriting data buffered from an adjacent trackWESTERN DIGITAL TECH INC·Filed 2001·Granted Aug 24, 2004·91 cites·14 claims
- 3097US6735033B1Method for recovering from shock events occurring to a disk drive during data write operations to improve data reliabilityWESTERN DIGITAL TECH INC·Filed 2001·Granted May 11, 2004·97 cites·22 claims
- 3197US6714372B1Method of manufacturing a disk drive by measuring the read width in the servo-writer to set the write unsafe limitWESTERN DIGITAL TECH INC·Filed 2001·Granted Mar 30, 2004·118 cites·11 claims
- 3297US6710966B1Method for reducing an effect of vibration on a disk drive during a track following operation by adjusting an adaptive-filter gain applied to an acceleration sensor signalWESTERN DIGITAL TECH INC·Filed 2001·Granted Mar 23, 2004·144 cites·20 claims
- 3397US6707635B1Method and apparatus for RRO learning on alternate tracks before and after shipping to cancel RRO in a disk driveWESTERN DIGITAL TECH INC·Filed 2000·Granted Mar 16, 2004·142 cites·24 claims
- 3497US6697217B1Disk drive comprising a coating bonded to a printed circuit board assemblyWESTERN DIGITAL TECH INC·Filed 2001·Granted Feb 24, 2004·82 cites·54 claims
- 3597US6674600B1Disk drive having separate motion sensors for base and actuatorWESTERN DIGITAL TECH INC·Filed 2000·Granted Jan 6, 2004·99 cites·17 claims
- 3697US6580574B1Mobile device comprising a disk storage system protected by a pressure-sensitive detectorWESTERN DIGITAL TECH INC·Filed 2001·Granted Jun 17, 2003·83 cites·44 claims
- 3797US6462896B1Method for minimizing adjacent track data loss during a write operation in a disk driveWESTERN DIGITAL TECH INC·Filed 2000·Granted Oct 8, 2002·125 cites·6 claims
- 3897US6445524B1Method of operating a disk drive for writing to an addressable location after detecting that a head is within a safe-to-write windowWESTERN DIGITAL TECH INC·Filed 1999·Granted Sep 3, 2002·145 cites·5 claims
- 3997US6198584B1Disk drive with staggered calibration bursts that are disposably located in data regions and method of using the same for calibrating a read headWESTERN DIGITAL CORP·Filed 1998·Granted Mar 6, 2001·146 cites·22 claims
- 4097US6104153ADisk drive employing method of spinning down its spindle motor to reduce the time required for spinning it down and subsequently spinning it upWESTERN DIGITAL CORP·Filed 1999·Granted Aug 15, 2000·151 cites·8 claims
- 4196US8307156B1Adaptively modifying pre-read operations within a rotating media storage deviceCODILIAN RAFFI·Filed 2010·Granted Nov 6, 2012·135 cites·9 claims
- 4296US7436625B1Disk drive spindle motor having a cavity defined by one of an upper surface of a stator support structure and a lower surface of a stator toothWESTERN DIGITAL TECH INC·Filed 2005·Granted Oct 14, 2008·56 cites·16 claims
- 4396US7023640B1Acceleration disturbance detection subsystem for use with disk drivesWESTERN DIGITAL TECH INC·Filed 2004·Granted Apr 4, 2006·119 cites·43 claims
- 4496US6934114B1Reduced bit number wedge identification techniques within a rotating media storage deviceWESTERN DIGITAL TECH INC·Filed 2002·Granted Aug 23, 2005·119 cites·37 claims
- 4596US6865049B1Methods, systems and devices for converting the kinetic energy of a rotating disk drive spindle motor into electrical energy to charge a rechargeable batteryWESTERN DIGITAL TECH INC·Filed 2002·Granted Mar 8, 2005·72 cites·145 claims
- 4696US6782449B1Adaptively modifying a read caching algorithm based upon the detection of a vibration state within a rotating media storage deviceWESTERN DIGITAL TECH INC·Filed 2002·Granted Aug 24, 2004·145 cites·50 claims
- 4796US6657811B1Mobile device and disk drive having a seek current profile responsive to an environment signalWESTERN DIGITAL TECH INC·Filed 2001·Granted Dec 2, 2003·69 cites·21 claims
- 4896US6594111B1Spindle motor having stator rim formed of curved arc segmentsWESTERN DIGITAL TECH INC·Filed 2001·Granted Jul 15, 2003·66 cites·20 claims
- 4996US6204988B1Disk drive capable of autonomously evaluating and adapting the frequency response of its servo control systemWESTERN DIGITAL CORP·Filed 1998·Granted Mar 20, 2001·146 cites·19 claims
- 5095US8190575B1Disk drive maintaining multiple copies of code segmentsONG CHOO-BHIN·Filed 2008·Granted May 29, 2012·136 cites·24 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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