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Class Information
Number: 360/77.04
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the head > Track centering > Rotary carrier > By memory storage of repeatable error or correction
Description: Subject matter including a signal storage device which is used to generate a transducer head position control signal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626781 |
Data recording device |
Dec. 1, 2009 |
| 7626782 |
Disk drive employing iterative learning control for tuning seek servo loop |
Dec. 1, 2009 |
| RE40955 |
Method and apparatus for storing position offset information on a hard drive assembly cylinder |
Nov. 10, 2009 |
| 7602568 |
Synchronous RRO write |
Oct. 13, 2009 |
| 7595955 |
Disk drive device and method for error recovery procedure therefor |
Sep. 29, 2009 |
| 7595953 |
Magnetic recording disk drive with switchable compensation for mechanical and electrical disturbances |
Sep. 29, 2009 |
| 7595954 |
Disk drive to estimate repeatable runout (RRO) based upon on an optimal mean square estimation (MSE) learning method |
Sep. 29, 2009 |
| 7593180 |
HDD data read control apparatus, medium, and method |
Sep. 22, 2009 |
| 7593802 |
Lead-lag input filter arrangement for electro-pneumatic control loops |
Sep. 22, 2009 |
| 7589930 |
Zone based repeated runout error compensation |
Sep. 15, 2009 |
| 7583470 |
Disk drive writing wedge RRO data along a sinusoidal path to compensate for reader/writer offset |
Sep. 1, 2009 |
| 7580218 |
Magnetic head tester using magnetic disk with pre-written servo |
Aug. 25, 2009 |
| 7576941 |
Disk drive writing wedge RRO values in a butterfly pattern |
Aug. 18, 2009 |
| 7567397 |
Adjacent Track Interference (ATI) identification methodology |
Jul. 28, 2009 |
| 7564643 |
Head position control device and medium storage device |
Jul. 21, 2009 |
| 7564642 |
Apparatus, system, and method for repeatable runout cancellation using ring of integrators |
Jul. 21, 2009 |
| 7564637 |
Storage media having areas for storing data for correcting servo information errors |
Jul. 21, 2009 |
| 7561370 |
Seam to seam embedded runout correction propagation |
Jul. 14, 2009 |
| 7554760 |
Recording/reproducing apparatus and method of measuring a parameter |
Jun. 30, 2009 |
| 7551390 |
Disk drive to characterize misaligned servo wedges |
Jun. 23, 2009 |
| 7542230 |
Disk drive during self-servo writing |
Jun. 2, 2009 |
| 7535192 |
Head positioning control method, head positioning control device and disk apparatus |
May. 19, 2009 |
| 7529054 |
Adaptive recording band expansion methodology |
May. 5, 2009 |
| 7525754 |
Repeated runout compensation using scaled position signals |
Apr. 28, 2009 |
| 7518821 |
Hard disk drive |
Apr. 14, 2009 |
| 7518960 |
Method and apparatus for positioning beam spot on recording medium |
Apr. 14, 2009 |
| 7515373 |
Transducer positioning responsive to complex position error signal |
Apr. 7, 2009 |
| 7508620 |
Disk apparatus, information processing system, and information providing apparatus |
Mar. 24, 2009 |
| 7504795 |
Head position control method, head position control device, and disk device |
Mar. 17, 2009 |
| 7502192 |
Magnetic disk drive and method for efficiently determining and storing RRO compensation values using a secondary micro-actuator |
Mar. 10, 2009 |
| 7499238 |
Systems and methods for improving disk drive synchronization |
Mar. 3, 2009 |
| 7492546 |
Providing pre-determined servo position correction values for use during disk drive initialization |
Feb. 17, 2009 |
| 7492545 |
Method and system for automatic time base adjustment for disk drive servo controllers |
Feb. 17, 2009 |
| 7489468 |
Method and apparatus for head positioning control in a disk drive |
Feb. 10, 2009 |
| 7489470 |
Magnetic recording apparatus |
Feb. 10, 2009 |
| 7489469 |
Embedded runout correction based on written-in runout measurement |
Feb. 10, 2009 |
| 7477473 |
Servo positioning adjustment |
Jan. 13, 2009 |
| 7463439 |
Control device, storage device, storage medium, servo data demodulation method, repeatable velocity error measuring device, and computer product |
Dec. 9, 2008 |
| 7461197 |
Disk formatter and methods for use therewith |
Dec. 2, 2008 |
| 7457075 |
System and method for reducing ZAP time and track squeeze in a data storage device |
Nov. 25, 2008 |
| 7450336 |
Method for improved repeatable run out learning in a disk drive |
Nov. 11, 2008 |
| 7440222 |
Magnetic recording apparatus and positioning correction method |
Oct. 21, 2008 |
| 7440223 |
Written-in repeatable run-out correction for hard disk drives |
Oct. 21, 2008 |
| 7436617 |
Controller, state estimator and methods for use therewith |
Oct. 14, 2008 |
| 7433147 |
Position control device, disk device, and position control method |
Oct. 7, 2008 |
| 7433149 |
Media surface with servo data in customer data region |
Oct. 7, 2008 |
| 7433148 |
Hard disk drive repeatable runout feed forward cancellation with high speed and low power phase rotator |
Oct. 7, 2008 |
| 7430092 |
Control apparatus, storage apparatus, and computer product |
Sep. 30, 2008 |
| 7423834 |
Convolution based multiple harmonic frequency repeatable runout compensation method and apparatus |
Sep. 9, 2008 |
| 7408735 |
Data tracking method and apparatus for disk-based data storage |
Aug. 5, 2008 |
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