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Class Information
Number: 360/77.02
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the head > Track centering > Rotary carrier
Description: Subject matter which controls a transducer centering position relative to a circular revolving medium.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7612960 |
Method for formatting data sectors on magnetic disk, and magnetic disk drive |
Nov. 3, 2009 |
| 7602129 |
Rotary-motor-loaded device and control characteristic measurement method and program |
Oct. 13, 2009 |
| 7602568 |
Synchronous RRO write |
Oct. 13, 2009 |
| 7599140 |
Output control device and recording-medium-driver control device |
Oct. 6, 2009 |
| 7599144 |
Method and apparatus compensating disturbance in state control device |
Oct. 6, 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 |
| 7586707 |
Magnetic disk drive with increased storage capacity |
Sep. 8, 2009 |
| 7586709 |
Read write offset error correction using geometric reference in self servo write process |
Sep. 8, 2009 |
| 7583469 |
Up-sampled filtering for servo demodulation |
Sep. 1, 2009 |
| 7583468 |
Method and apparatus of dual stage servo control with dual control paths and decoupling feedback for track following in a hard disk drive |
Sep. 1, 2009 |
| 7583465 |
Disk drive adaptive resonance compensation method and apparatus |
Sep. 1, 2009 |
| 7583460 |
Edge controlled fast data pattern generator |
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 |
| 7576940 |
Method and apparatus for estimating micro-actuator stroke sensitivity in a hard disk drive |
Aug. 18, 2009 |
| 7573667 |
Servo information write method and apparatus |
Aug. 11, 2009 |
| 7567400 |
Method and apparatus for improving the error rate of track information on a magnetic storage device |
Jul. 28, 2009 |
| 7564641 |
Controller-characteristic changing apparatus, storage device, controller-characteristic changing method, and computer product |
Jul. 21, 2009 |
| 7561369 |
Drive unit |
Jul. 14, 2009 |
| 7551388 |
Fall detection device and magnetic disk drive |
Jun. 23, 2009 |
| 7548393 |
HDD track following control apparatus and method |
Jun. 16, 2009 |
| 7545595 |
Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle |
Jun. 9, 2009 |
| 7542229 |
Magnetic recording-reproducing apparatus |
Jun. 2, 2009 |
| 7538971 |
Microactuator control adjustment using temperature sensor measurements |
May. 26, 2009 |
| 7535192 |
Head positioning control method, head positioning control device and disk apparatus |
May. 19, 2009 |
| 7532426 |
Method for erase process on recording surface of disk and disk drive apparatus |
May. 12, 2009 |
| 7529057 |
Servo loop employing correction vector from a secondary disturbance sensor to minimize correlation between servo loop error and disturbance sensor output |
May. 5, 2009 |
| 7529059 |
Method for determining read/write head position based on phase detection of a servo pattern |
May. 5, 2009 |
| 7525753 |
Reducing seek wind-up in a disk drive using early acceleration feedforward signal |
Apr. 28, 2009 |
| 7518960 |
Method and apparatus for positioning beam spot on recording medium |
Apr. 14, 2009 |
| 7508619 |
Magnetic head and magnetic disc drive |
Mar. 24, 2009 |
| 7492545 |
Method and system for automatic time base adjustment for disk drive servo controllers |
Feb. 17, 2009 |
| 7474485 |
Magnetic disk medium, magnetic disk drive, and method for detecting rotational position of magnetic disk medium |
Jan. 6, 2009 |
| 7474494 |
Magnetic disk device with positioning control |
Jan. 6, 2009 |
| 7466101 |
Head position control method, head position control device, and disk device |
Dec. 16, 2008 |
| 7460330 |
Settling judgment method for positioning control device and positioning control device |
Dec. 2, 2008 |
| 7443626 |
Patterned disk medium for vertical magnetic recording, and magnetic disk drive with the medium |
Oct. 28, 2008 |
| 7443630 |
Apparatus, system, and method for writing magnetically encoded data to discrete lands |
Oct. 28, 2008 |
| 7423833 |
Servo loop employing correction vector from a secondary disturbance sensor to minimize correlation between servo loop error and disturbance sensor output |
Sep. 9, 2008 |
| 7420764 |
Servo controller method and apparatus for high tracks per inch hard disk drives using a delay accomodating state estimator |
Sep. 2, 2008 |
| 7417821 |
Information recording apparatus |
Aug. 26, 2008 |
| 7405898 |
System and method for generating a position error signal (PES) reference curve in a data storage device |
Jul. 29, 2008 |
| 7405899 |
Method for determining read/write head position based on phase detection of a servo pattern |
Jul. 29, 2008 |
| 7400467 |
Methods and apparatus for managing write inhibit in response to a predictive metric |
Jul. 15, 2008 |
| 7400468 |
Vibration detector for hard disk drives |
Jul. 15, 2008 |
| 7397627 |
Method of detecting position of head for recording medium |
Jul. 8, 2008 |
| 7394613 |
Control device, disk device, and seek orbit generation method |
Jul. 1, 2008 |
| 7394607 |
Disk drive with position detection |
Jul. 1, 2008 |
| 7375915 |
Disk drive that varies the power to a slider mover during transitions between drive operations |
May. 20, 2008 |
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