Inventor · disambiguated record
Jingfeng Liu
Also filed as: LIU JINGFENG
61 granted patents·6 pending applications·763 citations·filing 2001–2024
98Inventor score
Top patents by PatentIndex Score
67 records- 0198US8237597B2Systems and methods for semi-independent loop processingLIU JINGFENG·Filed 2010·Granted Aug 7, 2012·84 cites·22 claims
- 0298US7058873B2Encoding method using a low density parity check code with a column weight of twoUNIV CARNEGIE MELLON·Filed 2002·Granted Jun 6, 2006·237 cites·26 claims
- 0397US8295001B2Systems and methods for low latency noise cancellationLIU JINGFENG·Filed 2010·Granted Oct 23, 2012·70 cites·22 claims
- 0495US7596196B1Timing recovery in error recovery for iterative detectionMAXTOR CORP·Filed 2006·Granted Sep 29, 2009·34 cites·20 claims
- 0595US7525460B1Timing loop based on analog to digital converter output and method of useMARVELL INT LTD·Filed 2007·Granted Apr 28, 2009·36 cites·52 claims
- 0695US7362536B1Disk drive that compensates for phase incoherence between radially adjacent servo tracks and methods thereofMAXTOR CORP·Filed 2006·Granted Apr 22, 2008·83 cites·23 claims
- 0792US8208213B2Systems and methods for hybrid algorithm gain adaptationLIU JINGFENG·Filed 2010·Granted Jun 26, 2012·20 cites·20 claims
- 0892US7900125B1Majority detection in error recoverySEAGATE TECHNOLOGY LLC·Filed 2006·Granted Mar 1, 2011·41 cites·20 claims
- 0991US8266505B2Systems and methods for retimed virtual data processingLIU JINGFENG·Filed 2009·Granted Sep 11, 2012·20 cites·20 claims
- 1091US7948699B2Systems and methods for equalizer optimization in a storage access retryLSI CORP·Filed 2009·Granted May 24, 2011·10 cites·26 claims
- 1190US7872823B2AGC loop with weighted zero forcing and LMS error sources and methods for using suchLSI CORP·Filed 2009·Granted Jan 18, 2011·9 cites·20 claims
- 1290US7738202B1Wide-biphase-detector quality monitor for sensing of pin layer reversalSEAGATE TECHNOLOGY LLC·Filed 2006·Granted Jun 15, 2010·24 cites·15 claims
- 1389US7945009B1Jitter measurementMARVELL INT LTD·Filed 2007·Granted May 17, 2011·7 cites·19 claims
- 1488US8441751B1Dibit pulse extraction methods and systemsSONG HONGWEI·Filed 2007·Granted May 14, 2013·8 cites·29 claims
- 1587US8000193B1Timing recovery for optical disc drive high frequency modulationMARVELL INT LTD·Filed 2009·Granted Aug 16, 2011·7 cites·20 claims
- 1686US7483227B1Detecting a thermal asperity condition of a disk drive head responsive to data value transitionsMAXTOR CORP·Filed 2006·Granted Jan 27, 2009·8 cites·22 claims
- 1785US8107328B1Method and apparatus for calibrating optical recording systemLIU JINGFENG·Filed 2008·Granted Jan 31, 2012·5 cites·16 claims
- 1883US8559283B1Detector for high frequency amplitude modulation distortionLIU JINGFENG·Filed 2008·Granted Oct 15, 2013·4 cites·21 claims
- 1982US8477581B1Asymmetry compensation systemLIU JINGFENG·Filed 2008·Granted Jul 2, 2013·5 cites·18 claims
- 2081US7825836B1Limit equalizer output based timing loopMARVELL INT LTD·Filed 2008·Granted Nov 2, 2010·3 cites·21 claims
- 2180US8582409B1Method and device for increased pull-in range of timing recovery circuit for storage devicesLIU JINGFENG·Filed 2007·Granted Nov 12, 2013·3 cites·46 claims
- 2277US8111739B1Detector for low frequency offset distortionLIU JINGFENG·Filed 2008·Granted Feb 7, 2012·3 cites·9 claims
- 2377US7239682B2Timing recovery system and methodUNIV CARNEGIE MELLON·Filed 2002·Granted Jul 3, 2007·11 cites·61 claims
- 2475US8675298B2Systems and methods for adaptive target searchLIU JINGFENG·Filed 2009·Granted Mar 18, 2014·2 cites·20 claims
- 2575US7961124B1Timing loop based on analog to digital converter output and method of useMARVELL INT LTD·Filed 2009·Granted Jun 14, 2011·2 cites·17 claims
- 2674US8050157B1Timing recovery for optical disc drive high frequency modulationMARVELL INT LTD·Filed 2008·Granted Nov 1, 2011·2 cites·29 claims
- 2774US7821889B1Offset loop for wobbleMARVELL INT LTD·Filed 2007·Granted Oct 26, 2010·1 cites·52 claims
- 2867US8199626B1RF interpolated timing recovery using clock synchronized to wobbleXIE JIN·Filed 2011·Granted Jun 12, 2012·1 cites·15 claims
- 2965US10197419B2Magnetic absolute rotary encoderMULTIDIMENSION TECHNOLOGY CO LTD·Filed 2014·Granted Feb 5, 2019·2 cites·20 claims
- 3065US7974369B2Phase detector for timing recovery loopLSI CORP·Filed 2009·Granted Jul 5, 2011·5 cites·13 claims
- 3164US8164993B2Method and apparatus for detecting land pre-pitsLIU JINGFENG·Filed 2008·Granted Apr 24, 2012·0 cites·26 claims
- 3264US7974169B1Wobble channel clockingMARVELL INT LTD·Filed 2009·Granted Jul 5, 2011·0 cites·16 claims
- 3363US8862972B2Low latency multi-detector noise cancellationSEAGO BRADLEY D·Filed 2011·Granted Oct 14, 2014·3 cites·23 claims
- 3460USD1059141SPortable hole diggerLIU JINGFENG·Filed 2024·Granted Jan 28, 2025·1 cites·1 claims
- 3559US8982681B1Method and device for increased pull-in range of a timing recovery circuit for storage devicesMARVELL INT LTD·Filed 2013·Granted Mar 17, 2015·0 cites·18 claims
- 3659US8804470B1Detector for high frequency amplitude modulation distortionMARVELL INT LTD·Filed 2013·Granted Aug 12, 2014·1 cites·21 claims
- 3759US8670955B2Systems and methods for reliability assisted noise predictive filteringSUN LINGYAN·Filed 2011·Granted Mar 11, 2014·1 cites·20 claims
- 3859US8619525B1Offset loop for wobbleMARVELL INT LTD·Filed 2012·Granted Dec 31, 2013·0 cites·20 claims
- 3959US7978579B1HD DVD wobble detection circuitMARVELL INT LTD·Filed 2007·Granted Jul 12, 2011·0 cites·23 claims
- 4059US7200096B2Method and apparatus for the modulation of multilevel data arraysINST DATA STORAGE·Filed 2001·Granted Apr 3, 2007·8 cites·28 claims
- 4158US8957793B1Limit equalizer output based timing loopLIU JINGFENG·Filed 2012·Granted Feb 17, 2015·0 cites·20 claims
- 4258US8422609B2Automatic filter-reset mechanismLIU JINGFENG·Filed 2009·Granted Apr 16, 2013·0 cites·14 claims
- 4357US8724440B1Method and circuit for decoding a sample of a signal read from a storage medium to obtain a physical address of data on the storage mediumMARVELL INT LTD·Filed 2013·Granted May 13, 2014·0 cites·20 claims
- 4457US8315135B1Offset loop for wobbleOBERG MATS·Filed 2012·Granted Nov 20, 2012·0 cites·20 claims
- 4557US7969848B1System and method of decoupling asymmetry from baseline compensationMARVELL INT LTD·Filed 2008·Granted Jun 28, 2011·0 cites·20 claims
- 4656US8514678B2Method and apparatus for detecting land pre-pitsLIU JINGFENG·Filed 2012·Granted Aug 20, 2013·0 cites·20 claims
- 4756US8477582B1RF interpolated time recovery using clock synchronized to wobbleXIE JIN·Filed 2012·Granted Jul 2, 2013·0 cites·20 claims
- 4855US8385165B1Method and apparatus for calibrating optical recording systemMARVELL INT LTD·Filed 2012·Granted Feb 26, 2013·0 cites·19 claims
- 4954US8102740B1Offset loop for wobbleOBERG MATS·Filed 2010·Granted Jan 24, 2012·0 cites·20 claims
- 5054US2011080211A1Systems and Methods for Noise Reduced Data DetectionYANG SHAOHUA·Filed 2009·Application pending·0 cites
Showing the top 50 of 67 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →