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Class Information
Number: 360/78.04
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the head > Track changing > For rotary carrier (e.g., disc)
Description: Subject matter which causes a change in transducing position between tracks on a record carrier moving in circular motion.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619848 |
Method of searching to find a servo pattern corresponding to a servo pattern copy process |
Nov. 17, 2009 |
| 7619845 |
Method and apparatus for controlling disc drive using counter-electromotive force |
Nov. 17, 2009 |
| 7619850 |
Magnetic disk apparatus and magnetic head control method |
Nov. 17, 2009 |
| 7612960 |
Method for formatting data sectors on magnetic disk, and magnetic disk drive |
Nov. 3, 2009 |
| 7605998 |
Settling judgment method for positioning control device, positioning control device and disk apparatus |
Oct. 20, 2009 |
| 7602580 |
Commutational ramp loading apparatus and method |
Oct. 13, 2009 |
| 7602581 |
Interpolated just-in-time seek trajectories |
Oct. 13, 2009 |
| 7593180 |
HDD data read control apparatus, medium, and method |
Sep. 22, 2009 |
| 7589925 |
Method of accessing variable density data tracks in a disk drive |
Sep. 15, 2009 |
| 7586713 |
Control apparatus, storage apparatus, and head control method |
Sep. 8, 2009 |
| 7583465 |
Disk drive adaptive resonance compensation method and apparatus |
Sep. 1, 2009 |
| 7583469 |
Up-sampled filtering for servo demodulation |
Sep. 1, 2009 |
| 7580210 |
Method, apparatus, and medium for determining read and write frequencies in data storing systems and a disk drive using the same |
Aug. 25, 2009 |
| 7580217 |
Disk drive with hybrid analog-digital acceleration feedforward control system and method for rejecting rotational vibration |
Aug. 25, 2009 |
| 7576943 |
Magnetic disk drive with positioning control system |
Aug. 18, 2009 |
| 7576939 |
Discontinuous mode back EMF measurement |
Aug. 18, 2009 |
| 7576937 |
Disk drive and control method therefor |
Aug. 18, 2009 |
| 7573667 |
Servo information write method and apparatus |
Aug. 11, 2009 |
| 7570445 |
Adaptively adjusting seek function control parameters based on off-track write events |
Aug. 4, 2009 |
| 7570446 |
Disk drive with improved format efficiency and control method thereof |
Aug. 4, 2009 |
| 7561361 |
Dynamic synchronization of timing signals |
Jul. 14, 2009 |
| 7561373 |
Bias compensation method and appropriate bias force profile generation method, recording media and hard disk drive |
Jul. 14, 2009 |
| 7558017 |
Magnetic disk drive and a loading/unloading method |
Jul. 7, 2009 |
| 7551388 |
Fall detection device and magnetic disk drive |
Jun. 23, 2009 |
| 7548396 |
Storage apparatus, control method, and control device of storage apparatus |
Jun. 16, 2009 |
| 7538970 |
Storage apparatus, storage apparatus control method, and computer product |
May. 26, 2009 |
| 7538971 |
Microactuator control adjustment using temperature sensor measurements |
May. 26, 2009 |
| 7532426 |
Method for erase process on recording surface of disk and disk drive apparatus |
May. 12, 2009 |
| 7529051 |
Compensation for variation in timing skew in a disc drive data storage system |
May. 5, 2009 |
| 7522368 |
Differential voice coil motor control |
Apr. 21, 2009 |
| 7518821 |
Hard disk drive |
Apr. 14, 2009 |
| 7515375 |
Positioning control device and disk device |
Apr. 7, 2009 |
| 7515377 |
Storage apparatus and control method for detecting vibration produced during seeking |
Apr. 7, 2009 |
| 7508615 |
Method of controlling movement of a transducer and disk drive using same |
Mar. 24, 2009 |
| 7499237 |
Recording controlling method in hard disk drive and hard disk drive using the same |
Mar. 3, 2009 |
| 7489472 |
High-order hybrid actuator controller |
Feb. 10, 2009 |
| 7489471 |
Bias calculation, bias compensation, and bias table editing methods for HDD, recording media storing computer programs for executing the same, and HDD using the same |
Feb. 10, 2009 |
| 7486465 |
Magnetic spacing control method for magnetic head, read/write circuit, and magnetic disk device using same |
Feb. 3, 2009 |
| 7483235 |
Position detecting circuit, information recording apparatus, and magnetic disk device |
Jan. 27, 2009 |
| 7477471 |
Disk drive employing offset compensation for velocity control of a voice coil motor |
Jan. 13, 2009 |
| 7468859 |
Voice coil motor effective resistance determination |
Dec. 23, 2008 |
| 7463443 |
Reduced hardware control circuit device, with current loop for broad band hard disk drive applications |
Dec. 9, 2008 |
| 7463439 |
Control device, storage device, storage medium, servo data demodulation method, repeatable velocity error measuring device, and computer product |
Dec. 9, 2008 |
| 7460329 |
Feedforward compensator for induced vibration |
Dec. 2, 2008 |
| 7460330 |
Settling judgment method for positioning control device and positioning control device |
Dec. 2, 2008 |
| 7460331 |
Seek control method, seek control device and medium storage device |
Dec. 2, 2008 |
| 7450332 |
Free-fall detection device and free-fall protection system for a portable electronic apparatus |
Nov. 11, 2008 |
| 7450336 |
Method for improved repeatable run out learning in a disk drive |
Nov. 11, 2008 |
| 7440225 |
Disk drive employing pivot friction compensation |
Oct. 21, 2008 |
| 7440218 |
Charge remover for magnetic disk |
Oct. 21, 2008 |
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