Inventor · disambiguated record
Roger William Wood
Also filed as: WOOD ROGER · WOOD ROGER W · WOOD ROGER WILLIAM
33 granted patents·1 pending application·592 citations·filing 1983–2018
97Inventor score
Top patents by PatentIndex Score
34 records- 0196US9632863B2Track error-correcting code extensionHGST Netherlands BV·Filed 2015·Granted Apr 25, 2017·19 cites·61 claims
- 0296US9059737B2Disk drive with distributed codeword blocksHGST Netherlands BV·Filed 2013·Granted Jun 16, 2015·27 cites·17 claims
- 0393US8792210B2Asymmetric writer for shingled magnetic recordingDE LA FUENTE ANTON R·Filed 2012·Granted Jul 29, 2014·42 cites·15 claims
- 0493US7551396B2Perpendicular magnetic write head having a studded trailing shield compatible with read/write offsetHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jun 23, 2009·16 cites·8 claims
- 0592US7639450B2Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording headHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Dec 29, 2009·15 cites·22 claims
- 0692US7450349B2Magnetic head with soft magnetic shield and magnetic storageHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Nov 11, 2008·16 cites·18 claims
- 0792US4555784AParity and syndrome generation for error detection and correction in digital communication systemsAMPEX·Filed 1984·Granted Nov 26, 1985·47 cites·3 claims
- 0891US8665545B2Shingled magnetic recording (SMR) disk drive with verification of written dataCOKER JONATHAN DARREL·Filed 2011·Granted Mar 4, 2014·16 cites·7 claims
- 0991US8310786B2Asymmetric writer for shingled magnetic recordingDE LA FUENTE ANTON R·Filed 2009·Granted Nov 13, 2012·16 cites·23 claims
- 1091US5041922AMagnetic recording medium having magnetic storage and saturable layers, and apparatus and method using the mediumAMPEX·Filed 1990·Granted Aug 20, 1991·64 cites·34 claims
- 1190US9601144B1Heat-assisted magnetic recording (HAMR) disk drive with disk having multiple continuous magnetic recording layersHGST Netherlands BV·Filed 2016·Granted Mar 21, 2017·13 cites·20 claims
- 1290US9036304B1System and methods utilizing dual read sensorsHGST Netherlands BV·Filed 2014·Granted May 19, 2015·11 cites·23 claims
- 1389US8856618B2Scalable 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
- 1486US9818440B1Heat assisted magnetic recording system having at least three possible magnetic configurations per physical bitHGST Netherlands BV·Filed 2016·Granted Nov 14, 2017·7 cites·23 claims
- 1586US9437232B1Magnetic recording disk drive with write position error signal values written in the data tracks for compensation of track misregistrationHGST Netherlands BV·Filed 2015·Granted Sep 6, 2016·8 cites·20 claims
- 1686US5357520AMethod and apparatus for precompensation value determination in a PRML data channelIBM·Filed 1992·Granted Oct 18, 1994·42 cites·6 claims
- 1785US5280489ATime-varying Viterbi detector for control of error event lengthIBM·Filed 1992·Granted Jan 18, 1994·57 cites·16 claims
- 1884US5535187AHigh capacity run-length-limited coding system employing asymmetric and even-spaced codesINTENATIONAL BUSINESS MACHINES·Filed 1993·Granted Jul 9, 1996·38 cites·59 claims
- 1982US8120866B2Method for characterizing a magnetic-recording system for the presence of adjacent-track interference and far-track interferenceCHE XIAODONG·Filed 2009·Granted Feb 21, 2012·6 cites·7 claims
- 2074US8094403B2Correcting errors in position of an HDD write-headWOOD ROGER WILLIAM·Filed 2009·Granted Jan 10, 2012·4 cites·19 claims
- 2173US6104581ADual coil rotary actuatorIBM·Filed 1998·Granted Aug 15, 2000·25 cites·6 claims
- 2269US8902534B2Implementing track following using data characteristics for positional informationBROCKIE RICHARD MICHAEL·Filed 2012·Granted Dec 2, 2014·3 cites·20 claims
- 2368US10008229B2Implementing enhanced track following during read back using head asymmetry metrics in hard disk drivesWESTERN DIGITAL TECH INC·Filed 2016·Granted Jun 26, 2018·2 cites·17 claims
- 2467US8649119B2Measuring variations in head-disk clearance in a hard disk driveMARCHON BRUNO·Filed 2011·Granted Feb 11, 2014·2 cites·20 claims
- 2567US5448571AMethod and apparatus for determining byte synchronization within a serial data receiverIBM·Filed 1994·Granted Sep 5, 1995·52 cites·18 claims
- 2666US4527269AEncoder verifierAMPEX·Filed 1983·Granted Jul 2, 1985·19 cites·9 claims
- 2762US7616403B2Winged design for reducing corner stray magnetic fieldsHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Nov 10, 2009·4 cites·20 claims
- 2858US7961416B2Using readback signals to estimate radial location on a rotating storage deviceHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Jun 14, 2011·0 cites·25 claims
- 2954US9218847B2System and method for testing data storage systems utilizing micro-transitionsHGST Netherlands BV·Filed 2013·Granted Dec 22, 2015·0 cites·29 claims
- 3050US6865041B1Method and apparatus for servowriting using a unipolar write currentHITACHI GLOBAL STORAGE TECH·Filed 2000·Granted Mar 8, 2005·1 cites·23 claims
- 3146US2015116860A1System and methods for combining multiple offset read-backsHGST Netherlands BV·Filed 2013·Application pending·0 cites
- 3243US10404290B2Non-binary decoding using tensor product transformsWESTERN DIGITAL TECH INC·Filed 2017·Granted Sep 3, 2019·0 cites·24 claims
- 3340US10283146B2System and method for reading data recorded on ferroelectric storage medium by means of a near-field transducerWESTERN DIGITAL TECH·Filed 2018·Granted May 7, 2019·0 cites·19 claims
- 3436US6456450B1Method and apparatus for reducing track misregistration due to digital-to-analog converter quantization noiseIBM·Filed 1998·Granted Sep 24, 2002·7 cites·51 claims
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