Inventor
Xiong Liu
Inventor
Singapore, SG
Overview
Patents· 142 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer56%
G06FElectric digital data processing13%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters3%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms1%
C40BCombinatorial chemistry1%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light1%
G11CStatic stores1%
H03MCoding1%
H04LTransmission of digital information, e.g. telegraphic communication1%
PatentTitleYear
10,867,633Reduced adjacent track erasure from write retry202010,839,841Minimization of thermal magnetoresistive offset change202010,839,860Methods and devices for reducing condensation in storage devices202010,755,736Microwave-assisted magnetic recording apparatus and method202010,747,503Random number generation using heat assisted magnetic recording202010,734,033Shingled magnetic recording storage system202010,717,421Braking force distribution method and system of multiple train units202010,698,658Random number generation from spin torque oscillator noise202010,670,592Detection of analytes using metal nanoparticle probes and dynamic light scattering202010,661,666Traction distribution method and system of power-distributed train202010,643,648Anti-reflection data storage medium202010,629,238Managing storage device media data rates202010,606,915Answer searching method and device based on deep question and answer202010,579,533Cache transfer time mitigation202010,580,468Cache access time mitigation202010,540,110Multi-channel data storage for accelerated single-channel read throughput202010,528,348Data management method for storage media202010,510,378Slit full disk shroud201910,490,227Shingled magnetic recording storage system201910,490,232Helium-filled storage container201910,481,873Random number generation using heat assisted magnetic recording201910,482,912Microwave-assisted magnetic recording apparatus and method201910,460,760Shingled magnetic recording storage system201910,446,184Write current switching in a data storage device using an effective footprint of a write pole201910,446,182Media temperature measurement for adjusting the light source in heat-assisted magnetic recording device201910,416,729Mounting structure for hard disk drives201910,410,662Preventing data storage device failure due to changes in head fly height201910,388,314Adaptive configuration of thermal asperity guard bands201910,388,328Storage device breathing structure201910,381,049Data storage device housing components having a polymeric element attached to a surface thereof201910,374,545Rotor temperature monitoring method and system for permanent magnet synchronous motor201910,341,115Data security system that uses a repeatable magnetic signature as a weak entropy source201910,332,549Transducing head protrusion control201910,276,216Data storage device filter201910,269,380Disk drive having multiple disks accessible by a reduced number of read/write heads201910,268,394Data storage device performance optimization method and apparatus201910,263,556Method and system for correcting initial zero offset201910,249,338Shingled magnetic recording storage system during vibration201910,249,332Microwave-assisted magnetic recording apparatus and method201910,204,650Closed-loop fly height control using transfer function between harmonic response and heater input201910,199,067Adaptive cleaning of a media surface responsive to a mechanical disturbance event201910,191,041Detection of analytes using metal nanoparticle probes and dynamic light scattering201910,192,580Write current switching in a data storage device using an effective footprint of a write pole201910,176,843Detection of z-axis non-operation shock201910,176,834Write head offset for shingled magnetic recording (SMR) disk drives201910,176,849Shingled magnetic recording storage system201910,127,950Data storage device with moving ambient temperature sensor201810,115,436Filter media and filter products for electronic enclosures201810,109,322Anti-shock system for a data storage device201810,108,343Maximize SMR drive capacity201810,068,600Direct current magnetoresistive jog offset compensation201810,056,109Shingled magnetic recording with operational based track spacing201810,049,692Closed-loop fly height control using sector-specific, repeatable VGA values201810,036,103Pet industrial yarn melt direct spinning manufacturing method and device thereof201810,038,367Control of an electrical converter201810,033,313Control method for restarting permanent magnet synchronous motor with speed, device and system thereof20189,990,949Multi-channel data recording20189,991,829Direct-axis current protection method and device for permanent magnet synchronous motor drive system20189,972,353Shingled magnetic recording storage system during vibration20189,947,353Magnetic recording system employing passive thermal asperity avoidance20189,916,858'Detection of Z-axis non-operation shock'20189,905,251'Write current switching in a data storage device'20189,892,749'Write head offset for shingled magnetic recording (SMR) disk drives'20189,881,642'Disk surface defect detection'20189,875,757Adjusting track width to compensate for offset writing of a track20189,846,569Random values based on a random components of noise20179,837,946Method and device for acquiring rotor position based on permanent magnet synchronous drive system20179,837,111Direct current magnetoresistive jog offset compensation20179,817,579'Maximize SMR drive capacity'20179,805,749'Heat-assisted magnetic recording drive enclosure with arcuate channel for accommodating laser diode unit'20179,679,595'Thermal asperity detection apparatus and method'20179,601,142'Magnetic recording tracks with consolidated timing fields and no inter-sector gaps'20179,594,628'Operational vibration compensation through media cache management'20179,583,127'Write head offset for shingled magnetic recording (SMR) disk drives'20179,558,766'Controlling spacing between a read transducer and a recording medium using a write coil'20179,542,965'Skewed shingled magnetic recording data reader'20179,536,563'Detecting shingled overwrite errors'20179,520,149'Direct current magnetoresistive jog offset compensation'20169,495,988'Dependent write fault threshold'20169,460,750'Combining selected data from two or more passes to recover a data sector'20169,401,161'Magnetic read head with multiple read transducers each having different design characteristics'20169,383,763'Multimode current mirror circuitry'20169,377,956'Rewrite operation for recording bands'20169,373,348'Storage medium with layer(s) for enhanced heating'20169,325,580'Method and apparatus for service control on access node'20169,236,073'Write fault threshold for a set of tracks'20169,202,511'Current-based environment determination'20159,159,369'MR-offset change detection and compensation'20159,153,265'Head slider with adjusted thermal profile'20159,129,627'Sector-based write operation'20159,129,633'Adaptive defect avoidance device'20159,117,471'AC MR-offset compensation'20159,077,364'Method and apparatus for converting an analog signal to a digital signal based on reference voltages provided by reference ladders'20159,047,923'Fast shingled tracks recording'20159,007,710'Rewrite operation for recording bands'20158,883,094'Detection of analtyes using metal nanoparticle probes and dynamic light scattering'20148,860,482'Techniques for adjusting gears of an oscillator'20148,837,571'Apparatus and methods for on-die instrumentation'20148,742,969'Two-step subranging ADC architecture'20148,702,073'Shock absorber capable of damping vibration'20148,699,182'Fluid dynamic motor with reduced vibrations'20148,519,355'Charged particle source'20138,233,232'Method and data storage device with a snubber supported on an actuator and having a distal edge configured to have differing arcuate portions'20128,120,868'Data storage medium having system data stored in a guard band between zones of consecutive data storage tracks'20128,077,069'Two-step subranging ADC architecture'20118,026,108'Detection of biotargets using bioreceptor functionalized nanoparticles'20117,891,249'Multi-axis vibration method and apparatus'20117,872,827'Impact protection for a retractable control object'20117,675,712'Ramp structure with inclined contact surface'20107,532,437'Slider having transducers orientated in different directions'20097,483,238'Shock absorbing device for an enclosure'20097,457,075'System and method for reducing ZAP time and track squeeze in a data storage device'20087,417,813'Overlapping data track access'20087,405,893'Data storage medium with optimized servo format'20087,352,523'Ramp unload in disc drives'20087,349,174'Soft sensor for operating shock in a disc drive'20087,330,328'Random number generation using back electromotive force (BEMF) values'20087,328,118'Method of determining the mass unbalance of an actuator'20087,259,933'Velocity control system for an actuator assembly'20077,167,882'True random number generation'20077,082,007'Method to achieve higher track density by allowing only one-sided track encroachment'20066,954,325'Method and disc drive for writing servo wedges'20056,937,427'Method and apparatus for measuring the back EMF of a disc drive VCM'20056,862,155'Squeeze evaluations that account for low frequency components, in a controller usable in a data handling system'20056,856,485'Biased retaining ring for disc drive'20056,853,511'Average position error measurement in a data storage device'20056,829,115'Method and apparatus for measuring half frequency whirl in a spindle motor'20046,771,441'Track mis-registration measurement for a disc drive'20046,765,737'Variable track densities on a recording medium to compensate for non-repeatable runout (NRRO) error'20046,754,030'Optimal reader-to-writer offset measurement of a head in a disc drive for reduced track misregistration'20046,687,094'Head actuator for a data storage head having a low mass with lateral stiffness'20046,661,614'Magnetless actuator for disc drive'20036,654,198'Repeatable run-out error compensation method for a disc drive'20036,628,471'Detection and cancellation of cage frequency using the clock head in a servowriter'20036,606,214'System and method to minimize bearing pivot effect in disc drive actuator'20036,590,739'Disc clamp with shape memory alloys'20036,487,035'Method and apparatus for adaptive feedforward cancellation'20026,476,995'Method and apparatus for reducing track misregistration from servo track writing'20026,453,722'Integrated test system for a disc drive pivot bearing and actuator'20026,414,817'High friction disc support member to increase disc drive mechanical shock resistance'20026,411,471'Low friction bearing pivot for disc drive'20026,256,173'Apparatus for isolating vibration in pivot bearing assemblies'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2020Patents assigned to SEAGATE TECHNOLOGY LLC (119)· patent assignee history
2001–2020Based in Singapore, SG· patent location history
2011–2019Patents assigned to LIU XIONG (8)· patent assignee history
2011–2015Patents assigned to MARVELL WORLD TRADE LTD (3)· patent assignee history
2011–2020Based in Oviedo, FL, US· patent location history
2011–2015Based in San Jose, CA, US· patent location history
2014–2016Patents assigned to ALTERA CORP (3)· patent assignee history
2014–2016Based in Cupertino, CA, US· patent location history
2017–2020Based in Hunan, CN· patent location history
2019–2020Patents assigned to CRRC ZHUZHOU INST CO LTD (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEAGATE TECHNOLOGY LLC | 119 | 2001–2020 |
| LIU XIONGself | 8 | 2011–2019 |
| ALTERA CORP | 3 | 2014–2016 |
| CRRC ZHUZHOU INST CO LTD | 3 | 2019–2020 |
| MARVELL WORLD TRADE LTD | 3 | 2011–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Singapore, SG | 117 | 2001–2020 |
| Hunan, CN | 7 | 2017–2020 |
| Oviedo, Florida, US | 4 | 2011–2020 |
| Cupertino, California, US | 3 | 2014–2016 |
| San Jose, California, US | 3 | 2011–2015 |