Inventor · disambiguated record
Jonathan Darrel Coker
Also filed as: COKER JONATHAN · COKER JONATHAN D · COKER JONATHAN DARREL
68 granted patents·3 pending applications·1,547 citations·filing 1986–2021
99Inventor score
Files withIBM29HGST Netherlands BV14COKER JONATHAN DARREL6HITACHI GLOBAL STORAGE TECH5MAYO FOUNDATION3
Top patents by PatentIndex Score
71 records- 0196US9059737B2Disk drive with distributed codeword blocksHGST Netherlands BV·Filed 2013·Granted Jun 16, 2015·27 cites·17 claims
- 0296US8913335B2Storage device with shingled data and unshingled cache regionsCOKER JONATHAN DARREL·Filed 2011·Granted Dec 16, 2014·29 cites·9 claims
- 0396US8059350B2Patterned magnetic recording disk with patterned servo sectors having chevron servo patternsALBRECHT THOMAS R·Filed 2009·Granted Nov 15, 2011·30 cites·8 claims
- 0495US10127933B2Multi-track reader for improved signal to noise ratioWESTERN DIGITAL TECH INC·Filed 2017·Granted Nov 13, 2018·16 cites·20 claims
- 0595US8941943B1Dynamic variable capacity hard disk driveHGST Netherlands BV·Filed 2013·Granted Jan 27, 2015·27 cites·24 claims
- 0695US8867153B1Method and apparatus for dynamic track squeeze in a hard driveHGST Netherlands BV·Filed 2013·Granted Oct 21, 2014·29 cites·20 claims
- 0795US5168413ATransducer head flying height monitoring methods and apparatus for disk drive systemIBM·Filed 1990·Granted Dec 1, 1992·109 cites·18 claims
- 0894US6901119B2Method and apparatus for implementing soft-input/soft-output iterative detectors/decodersIBM·Filed 2001·Granted May 31, 2005·64 cites·21 claims
- 0994US6460150B1Noise-predictive post-processing for PRML data channelIBM·Filed 2000·Granted Oct 1, 2002·47 cites·13 claims
- 1094US5220466AMethod and apparatus for digital filter control in a partial-response maximum-likelihood disk drive systemIBM·Filed 1991·Granted Jun 15, 1993·76 cites·12 claims
- 1193US4821125ACompensation of write current adn delta-V for recording component and radial positionIBM·Filed 1986·Granted Apr 11, 1989·72 cites·31 claims
- 1292US8760794B1Servo systems with augmented servo burstsHGST Netherlands BV·Filed 2013·Granted Jun 24, 2014·20 cites·16 claims
- 1391US8665545B2Shingled magnetic recording (SMR) disk drive with verification of written dataCOKER JONATHAN DARREL·Filed 2011·Granted Mar 4, 2014·16 cites·7 claims
- 1491US6625235B1Apparatus and method for noise-predictive maximum likelihood detectionIBM·Filed 1997·Granted Sep 23, 2003·68 cites·17 claims
- 1591US6557124B1Method and system for encoding data for high performance error controlIBM·Filed 2000·Granted Apr 29, 2003·36 cites·18 claims
- 1691US5255131AAsynchronous servo identification/address mark detection for PRML disk drive ssytemIBM·Filed 1992·Granted Oct 19, 1993·52 cites·15 claims
- 1790US8578122B2Indirection memory architecture with reduced memory requirements for shingled magnetic recording devicesCOKER JONATHAN DARREL·Filed 2011·Granted Nov 5, 2013·8 cites·18 claims
- 1890US7193800B2Data recording medium with servo pattern having pseudo-noise sequencesHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Mar 20, 2007·27 cites·15 claims
- 1989US8941935B1System and method for initiating refresh operationsHGST Netherlands BV·Filed 2014·Granted Jan 27, 2015·16 cites·22 claims
- 2089US8856618B2Scalable repair block error correction for sequential multiple data blocks in a magnetic data storage deviceHGST Netherlands BV·Filed 2012·Granted Oct 7, 2014·13 cites·15 claims
- 2189US8477442B2Patterned media for self-servowriting integrated servo fieldsALBRECHT THOMAS ROBERT·Filed 2010·Granted Jul 2, 2013·12 cites·18 claims
- 2289US5619539AData detection methods and apparatus for a direct access storage deviceIBM·Filed 1994·Granted Apr 8, 1997·47 cites·21 claims
- 2389US5438460AAsynchronous gain adjustment for PRML disk drive systemsIBM·Filed 1994·Granted Aug 1, 1995·45 cites·12 claims
- 2488US8922925B1Actively written guard bands in a cold storage or mixed mode driveHGST Netherlands BV·Filed 2013·Granted Dec 30, 2014·9 cites·20 claims
- 2588US8892817B2Storage device with inline address indirection metadata storageBANDIC ZVONIMIR Z·Filed 2011·Granted Nov 18, 2014·6 cites·20 claims
- 2688US6643814B1Maximum transition run encoding and decoding systemsIBM·Filed 2000·Granted Nov 4, 2003·47 cites·49 claims
- 2788US5392295AError measurement circuitIBM·Filed 1992·Granted Feb 21, 1995·44 cites·29 claims
- 2886US6219814B1Method and apparatus for selectively varying error correcting code (ECC) power in a direct access storage device (DASD)IBM·Filed 1996·Granted Apr 17, 2001·46 cites·18 claims
- 2986US5357520AMethod and apparatus for precompensation value determination in a PRML data channelIBM·Filed 1992·Granted Oct 18, 1994·42 cites·6 claims
- 3086US5258940ADistributed arithmetic digital filter in a partial-response maximum-likelihood disk drive systemIBM·Filed 1992·Granted Nov 2, 1993·43 cites·12 claims
- 3183US9741369B2Multi-track reader for improved signal to noise ratioWESTERN DIGITAL TECH INC·Filed 2014·Granted Aug 22, 2017·5 cites·23 claims
- 3282US9230578B2Multiple readers for high resolution and SNR for high areal density applicationHGST Netherlands BV·Filed 2013·Granted Jan 5, 2016·5 cites·19 claims
- 3381US8422161B2Information storage device with multiple-use fields in servo patternCASSUTO YUVAL·Filed 2009·Granted Apr 16, 2013·5 cites·19 claims
- 3481US6031672AMethod and apparatus for servo data pattern detectionIBM·Filed 1996·Granted Feb 29, 2000·39 cites·18 claims
- 3580US8654472B2Implementing enhanced fragmented stream handling in a shingled disk driveHALL DAVID ROBISON·Filed 2011·Granted Feb 18, 2014·5 cites·20 claims
- 3680US6158027AEnhanced noise-predictive maximum likelihood (NPML) data detection method and apparatus for direct access storage device (DASD)IBM·Filed 1998·Granted Dec 5, 2000·33 cites·20 claims
- 3779US8988807B1Disk drive with different data sector integrated preambles in adjacent data tracksHGST Netherlands BV·Filed 2013·Granted Mar 24, 2015·4 cites·16 claims
- 3879US7482965B1Digital chirp waveform generator and methodMAYO FOUNDATION·Filed 2005·Granted Jan 27, 2009·8 cites·13 claims
- 3977US8510504B2SMR storage device with user controls and access to status information and parameter settingsCOKER JONATHAN DARREL·Filed 2011·Granted Aug 13, 2013·2 cites·20 claims
- 4077US6937650B2Method and apparatus for channel equalization with a digital FIR filter using a pseudo random sequenceHITACHI GLOBAL STORAGE TECH·Filed 2001·Granted Aug 30, 2005·13 cites·18 claims
- 4177US5426541ASelf-equalization method for partial-response maximum-likelihood disk drive systemsIBM·Filed 1994·Granted Jun 20, 1995·26 cites·17 claims
- 4276US8947805B1Low complexity inter-track interference cancellation receiver for magnetic multiple-input, multiple-output (MIMO) channelHGST Netherlands BV·Filed 2014·Granted Feb 3, 2015·3 cites·17 claims
- 4375US7830948B2Asynchronous communication system for remote monitoring of objects or an environmentMAYO FOUNDATION·Filed 2009·Granted Nov 9, 2010·4 cites·18 claims
- 4475US7643536B2Asynchronus communication system for remote monitoring of objects or an environmentMAYO FOUNDATION·Filed 2004·Granted Jan 5, 2010·10 cites·53 claims
- 4575US6839195B2Method and apparatus for enhanced phase alignment for direct access storage device (DASD)HITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Jan 4, 2005·10 cites·12 claims
- 4675US5949831AMethod and apparatus for data detection for PRML data channelsIBM·Filed 1997·Granted Sep 7, 1999·71 cites·20 claims
- 4775US5416806ATiming loop method and apparatus for PRML data detectionIBM·Filed 1992·Granted May 16, 1995·22 cites·15 claims
- 4872US8982491B1Disk drive with different synchronization fields and synchronization marks in the data sector preambles in adjacent data tracksHGST Netherlands BV·Filed 2013·Granted Mar 17, 2015·2 cites·12 claims
- 4970US5268848AEqualizer adjustment for partial-response maximum-likelihood disk drive systemsIBM·Filed 1992·Granted Dec 7, 1993·19 cites·13 claims
- 5069US9489145B2Disk drive including I-regions having configurable final logical block addressesHGST Netherlands BV·Filed 2013·Granted Nov 8, 2016·2 cites·11 claims
Showing the top 50 of 71 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →