197876 ⎘
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Disposition or mounting of heads relative to record carriers with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks Circuits
Sub-classes:Flexible printed circuit offset finger stiffener
#2Disk device having conventional magnetic recording region and shingled magnetic recording region of different linear density
#3Systems and methods for SNR measurement using equalized data
#4Controller chip with signal swapping capability for controlling motor device and related method thereof
#5HARD DISK DEVICE, DISK, AND METHOD FOR CALCULATING DISPLACEMENT AMOUNT OR POSITION CORRECTION AMOUNT OF HEAD
#6Device for accessing address information in an optical disc
#7Servo processors that alternately control head positioning relative to sequential servo patterns
#8Harmonic selection for track following on a hard disk drive
#9Generating PES using readback signal distortion
#10STORAGE CONTROL METHOD, STORAGE CONTROL UNIT AND STORAGE APPARATUS
#11Storage device, head position detection method and control circuit
#12Low Power Disk-Drive Motor Driver
#13Discontinuous mode back EMF measurement
#14Method and system for head position control in embedded disk drive controllers
#15Storage device and control device
#16Control device, storage device, storage medium, servo data demodulation method, repeatable velocity error measuring device, and computer product
#17Servo demodulating circuit and method
#18Differential voice coil motor control
#19Magnetic recording medium and magnetic recording/reproducing apparatus
#20Magnetic recording medium and magnetic recording/reproducing apparatus
#21Magnetic recording medium and magnetic recording/reproducing apparatus
#22On-chip compensation for a fully differential voice coil motor control
#23Magnetic recording medium and magnetic recording/reproducing apparatus
#24Magnetic recording medium and magnetic recording/reproducing apparatus
#25MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
#26Magnetic recording medium and magnetic recording/reproducing apparatus
#27Magnetic recording medium and magnetic recording/reproducing apparatus
#28Magnetic recording medium and magnetic recording/reproducing apparatus
#29Magnetic recording medium and magnetic recording/reproducing apparatus
#30MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
#31Magnetic recording medium and magnetic recording/reproducing apparatus
#32Magnetic recording medium and magnetic recording/reproducing apparatus
#33MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
#34Random vibration and shock compensator using a disturbance observer
#35Method and apparatus for PWM drive
#36Method and system for head position control in embedded disk drive controllers
#37Write control method of hard disk drive, hard disk drive adapting the method and recording medium thereof
#38Magnetic disk device with positioning control
#39Disk device and method of generating signal representing head
#40Magnetic recording and reproducing apparatus, method of controlling the same, magnetic recording medium, and stamper for manufacturing magnetic recording medium
#41Disk drive control circuit and method
#42Servo control method and apparatus suitable for the same
#43Positioning apparatus and a controlling apparatus
#44Magnetic recording medium and magnetic recording/reproducing apparatus
#45Device for accessing address information in an optical disc
#46Method, medium, and apparatus controlling track seek in a recording and/or reproducing apparatus
#47Generalized sinusoidal trajectory for seek servomechanism of hard drives
#48Probe position error detecting method and apparatus in probe-based data storage system
#49Servo sector in magnetic disk drive
#50Disk drive using magnetic disk medium of discrete track recording
#51Magnetic disk apparatus, method of controlling a magnetic disk, and program for controlling a magnetic disk
#52Disk unit and manufacturing method thereof
#53Efficient transition from class D to linear operation in dual-mode voice coil motor controllers
#54Data recording system with servo pattern having pseudo-noise sequences
#55Signal-to-noise ratio (SNR) value characterization in a data recovery channel
#56Disk drive apparatus, servo control circuit, method of manufacturing recording medium, magnetic recording medium, and method of checking recording medium
#57System and method for reducing ZAP time and track squeeze in a data storage device
#58Method and system for head position control in embedded disk drive controllers
#59Skew-tolerant Gray code for a moveable object
#60Storage medium and method for actuator movement control
#61Positioning apparatus and controlling apparatus
#62Method and system for reducing power consumption in a rotatable media data storage device
#63Optical rotational position information detecting apparatus
#64Method and apparatus for head positioning control in a disk drive
#65Self-servo-writing multi-slot timing pattern
#66Voice coil motor saturation detection
#67Method and apparatus for processing multiple servo channels in magnetic recording devices
#68Data storage device concurrently disconnecting multiple voice coil motors from spindle motor BEMF voltage during unload
#69Designs for multiple perpendicular magnetic recording (PMR) writers and related head gimbal assembly (HGA) process
#70Control device for accessing a storage medium