Magnetic disk device and control method of the same

Hard disk drive idle sweep for thermal asperity avoidance

Disk device

Magnetic disk device

Data storage device with rapid in-field repeatable runout noise removal calibration

Circuit for biasing an external resistive sensor

Magnetic disk device and control method of magnetic disk device

Manufacturing method of magnetic disk device and magnetic disk device

Estimating recording head fly height using machine learning

Reader fly height control for head burnishing mitigation

Data storage device demodulating servo stripes using matched filter

Touchdown detection for multiple actuators on magnetic recording device

Calibrating elevator actuator for disk drive

Differential interface transmission of fly-height control data

Performance monitoring of a near-field transducer of a heat-assisted magnetic recording slider

Magnetic head control capable of avoidance media bumps during seeking process

Thermally assisted writer protrusion determination and control

Method and apparatus to detect and mitigate contamination between a read/write head and a recording medium

MAGNETIC DISK DEVICE AND METHOD FOR DETERMINING FLOATING OF MAGNETIC HEAD

Heat-assisted magnetic recording head-disk clearance setting

Method of setting flying height and flying height setting device

Method and apparatus for determining relative head-to-disk speed

Electronic system with media preparation mechanism and method of operation thereof

Head to media proximity detection

Contact detection

Dynamic fly height control that is insensitive to off-track motion

Addressing variations in bit error rates amongst data storage segments

Magnetic Element with Multiple Selective Transducing Elements

REAL TIME CLOSE LOOP FLY HEIGHT CONTROL

Magnetic reading and writing device

Methods and apparatus for hard disk drive system operation monitoring and self-adjustment

Implementing channel signal processing assist with ECS contact detection

Collection of readback signal modulation data

Disk drive with multiplexed read signal and fly-height signal for fly-height monitoring during writing

Data storage system and a method for measuring a change in a spacing between a head and a storage medium of a data storage system

Head DFH protrusion shape calibration by HDI sensor

Measuring variations in head-disk clearance in a hard disk drive

Systems and methods for user data based fly height calculation

Hard disk drive and method for controlling flying height of magnetic head thereof

HEAD CONTROLLER, MEMORY DEVICE AND HEAD CONTROL METHOD

Disk drive mapping out data tracks to avoid thermal asperities

Proximity sensing system

DISK STORAGE DEVICE AND METHOD FOR MEASURING HEAD FLYING HEIGHT

Contact detection

Magnetic reading and writing device

Systems and methods for variable compensated fly height measurement

Systems and methods for phase compensated harmonic sensing in fly height control

DETECTION OF PROXIMITY BETWEEN A SENSOR AND AN OBJECT

Systems and methods for phase offset based spectral aliasing compensation

Systems and methods for servo data based harmonics calculation

Systems and methods for format efficient calibration for servo data based harmonics calculation

Disk file preamplifier frequency-response and time delay compensation

DISK STORAGE APPARATUS AND METHOD OF MEASURING FLYING HEIGHT OF A HEAD

Detecting touch down and/or assessing quality in a hard disk drive

Fly-height control using asynchronous sampling

Method and apparatus for detecting touch-down and contact between a head and a storage medium using a sensor, and a disk drive and storage medium using the method

Slider fly-height control in a hard disk drive

Disk drive and method for measuring clearance change in the disk drive

Systems and methods for fly-height control using servo data

Disk drive and method for measuring clearance between a head and a disk in a disk drive

PROXIMITY DETECTION METHOD FOR MAGNETIC HEAD AND RECORDING MEDIUM

Method and apparatus for estimating flying height in a hard disk drive

Systems and methods for Nyquist tone harmonic measurements

Method of controlling a filter coefficient of a continuous time filter and data storage device thereof

SLIDER SUPPORT MECHANISM, SPRING FORCE CONTROL METHOD AND SPRING FORCE CONTROLLER

Systems and methods for variable fly height measurement

HEAD TESTING METHOD AND HEAD TESTING DEVICE

Systems and methods for adaptive CBD estimation in a storage device

Systems and methods for fly-height control using servo address mark data

COLLECTION OF READBACK SIGNAL MODULATION DATA

Wavelets-based detection of proximity between a sensor and an object

DYNAMIC PITCH AND ROLL SENSING IN HARD DISK DRIVES

Active compensation of flying height in magnetic disk drives

Methods and apparatus to detect surface characteristics on magnetic read/write heads

Method and apparatus for controlling fly-height of a perpendicular-magnetic-recording head in a hard disk drive

Harmonic measurement for head-disk spacing control using user data

Disk drive and method for controlling clearance in the disk drive

SES ASSISTED WRITE FLY HEIGHT MONITOR AND CONTROL

FLYING HEIGHT CONTROL DEVICE FOR MAGNETIC HEAD, AND MAGNETIC DISK DEVICE

FLYING HEIGHT CONTROL DEVICE FOR MAGNETIC HEAD, AND MAGNETIC DISK DEVICE

METHOD OF MEASURING VARIATION IN FLOATING AMOUNT AND MAGNETIC STORAGE APPARATUS

Proximity detection method for magnetic head and recording medium

MAGNETIC STORAGE APPARATUS, AND CONTROLLING METHOD THEREOF

Data pattern for fly height measurement

Timing insensitive method and apparatus for spectral analysis in a disk recording system

CONTROL CIRCUIT AND INFORMATION STORAGE DEVICE

Disc drive device

DISK DRIVE THAT CALIBRATES THE POWER FOR SETTING THE DYNAMIC FLY HEIGHT OF THE HEAD TO A TARGET VALUE

Systems and methods for using an on-the-fly CBD estimate to adjust fly-height

Using servo data harmonics to monitor head-medium spacing

Fly height adjustment device calibration

Head control method, control device, and storage device

Information storage apparatus for adjusting flying height of head

Fly height compensation using read gain control loop

Monitoring a fly height of a magnetic transducer

Monitoring a fly height of a magnetic transducer

Method and system for measuring spacing in a perpendicular magnetic recording

Flying height measurement and control with user data signal

Non-contact measurement of slider fly height by electrostatic force

Methods and apparatus to monitor and control hard-disk head position

Disk drive device, altitude determination method therefore and method for determining characteristic of head element portion

Information recording device

Methods and apparatus to monitor hard-disk drive head position

Manufacturing method for magnetic disk drive

Head-gap calculating device, storage device, head-gap calculating method, and computer product

Control device, control method, and storage apparatus for controlling read head and write head clearance by thermal protrusion

Head control device, storage device, and maximum power determining method

Non-contact measurement of slider fly height by electrostatic force

Detection of HDI in disk drives using read back signal

Storage apparatus, control method, control device, and program which preheats head

Measuring method of flying height and magnetic disk drive apparatus capable of adjusting flying height

Detection of fly height change in a disk drive

Head slap detecting device, storage device, head slap detecting method, and computer product

Control device and storage device

Algorithm to detect the touch down of the flying head on disk

Information recording/reproduction apparatus, head levitation height control method and head levitation control circuit

Head flying height measuring apparatus in magnetic storage device

System and method for determining head-disk contact in a magnetic recording disk drive by magnetoresistive signal amplitude

Disk drive write control by servo gain

Flying height measurement apparatus and method therefor

System and method for adjusting pressure sensitivity in sealed disk drive to account for temperature-induced changes in fly height

Data storage device with heater, and control method therefor involving different control modes

Method of controlling write strength of HDD and recording medium having recorded thereon program suitable for same

Low flying head detection using readback signal amplitude modulation

On the fly write head flyheight detector

Method of writing servo data and magnetic disk drive

Magnetic spacing measurement

System and method for adjusting fly heights in a hard disk drive having multiple heads

Controlling head flying height in a data storage device

Detection of fly height change in a disk drive

Data storage device and control method therefor involving flying height

Flying height monitor with servo AGC voltage for write operation in a hard disk drive

Method and implementation of in-situ absolute head medium spacing measurement

Dynamic measurement of head media spacing modulation

Method to control flying height between a head and a disk and apparatus thereof

Laser mode hop compensation using multi-sector feedback in heat assisted magnetic recording

Data storage device with adaptive write policy and enhanced longevity

Determining fly height using readback signal distortion

Method for forming a HAMR recording head with a protruding near-field transducer

Heat-assisted magnetic recording head with a near-field transducer extending beyond the media-facing surface

Calibrating elevator actuator for disk drive

Head media spacing using multiple readers

Preventing data storage device failure due to changes in head fly height

Adaptive configuration of thermal asperity guard bands

Calibration and adjusting target pre-write clearance offset for a heat-assisted magnetic recording device

Data storage device detecting minimum stable fly height of a head over a disk

Determining gamma of a read/write head based on active gain control and test signal amplitude measurements

Apparatus and method for measuring slider fly height relative to bit patterned media

Accelerating thermal decay of a harmonic-ratio reference track

High frequency reference patterns used to determine head-to-media clearance

Electronic system with head management mechanism and method of operation thereof

Data storage device calibrating parameter for heat assisted magnetic recording

Unstable reader detection

Data storage device attenuating thermal decay effect on fly height measurement

Electronic system with media scan mechanism and method of operation thereof

Loop pulse estimation-based fly height detector

Per wedge preheat DFH to improve data storage device performance

Disk drive calibrating threshold and gain of touchdown sensor

Disk drive employing fly height calibration tracks to account for magnetic entropy and thermal decay

Slider of a disk drive having data favorable load/unload attitude