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Class Information
Number: 360/77.05
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the head > Track centering > Rotary carrier > By servo signal component from carrier surface separate from information signal bearing surface
Description: Subject matter wherein the record carrier includes two surfaces one of which has a continuous path along which an information signal is stored and the other has a continuous path along which at least a component of a transducer head positioning servo control signal is stored.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7463438 |
Information storage apparatus, and control method and program for the same |
Dec. 9, 2008 |
| 7423835 |
Method and apparatus for servo control using spiral servo information in a disk drive |
Sep. 9, 2008 |
| 7403355 |
Information recording medium, recording/reproducing apparatus, and stamper |
Jul. 22, 2008 |
| 7382566 |
Magnetic disk protection mechanism, computer system comprising protection mechanism, protection method for magnetic disk, and program for protection method |
Jun. 3, 2008 |
| 7283320 |
Magnetic recording medium including servo and data bands in the magnetic layer |
Oct. 16, 2007 |
| 7250738 |
Nonlinear hysteresis control system |
Jul. 31, 2007 |
| 7245448 |
Information recording apparatus and data writing control device therefor |
Jul. 17, 2007 |
| 7242546 |
Determining a location based on a cyclic bit sequence containing consecutively-placed identical bit-groups |
Jul. 10, 2007 |
| 7212372 |
Magnetic tape and magnetic tape cartridge |
May. 1, 2007 |
| 7199956 |
Disk drive self-servo writing using fundamental and higher harmonics of a printed reference pattern |
Apr. 3, 2007 |
| 7158336 |
Window timing adjustment for spiral bursts |
Jan. 2, 2007 |
| 7126780 |
Method, system, and article of manufacture for self-servowriting a disk |
Oct. 24, 2006 |
| 7092184 |
Monitoring a sensor's output using a target window that is based on a longitudinal offset's position-dependent indicator |
Aug. 15, 2006 |
| 7016132 |
Magnetic data embedding system |
Mar. 21, 2006 |
| 6954318 |
Magnetic data embedding apparatus having checking function |
Oct. 11, 2005 |
| 6952322 |
Disk drive reading servo sectors recorded at a relative offset on multiple disk surfaces to increase the servo sample rate |
Oct. 4, 2005 |
| 6943981 |
Methods for improving servo-demodulation robustness |
Sep. 13, 2005 |
| 6934112 |
Method for obtaining head positions in magnetic data writing apparatus |
Aug. 23, 2005 |
| 6906485 |
Spindle motor control using a current profile to taper current transitions |
Jun. 14, 2005 |
| 6765748 |
Method of interleaving servo information fields for track following and seeking and a recording medium including interleaved servo information fields |
Jul. 20, 2004 |
| 6735040 |
Servo flaw detection using PES and velocity thresholds |
May. 11, 2004 |
| 6735031 |
Method for storage of self-servowriting timing information |
May. 11, 2004 |
| 6732292 |
Adaptive bi-directional write skip masks in a data storage device |
May. 4, 2004 |
| 6714371 |
Method and disk drive for shock estimation and write termination control |
Mar. 30, 2004 |
| 6693763 |
Method for linearizing microactuator hysteresis for a disc drive |
Feb. 17, 2004 |
| 6567233 |
4-D shock-sensing for hard-disk drives |
May. 20, 2003 |
| 6563673 |
Method and apparatus for minimizing slider fly heights over patterned media |
May. 13, 2003 |
| 6476997 |
Disk device, track positioning method and method for generating a position error signal |
Nov. 5, 2002 |
| 6396654 |
Embedded servo writing method and apparatus for hard disk drive |
May. 28, 2002 |
| 6385000 |
System and method for extending the operating life of a magnetoresistive transducer provided in a disk drive system |
May. 7, 2002 |
| 6377416 |
A/D with digital PLL |
Apr. 23, 2002 |
| 6292318 |
Disc recording/reproducing apparatus and medium having spiral data track |
Sep. 18, 2001 |
| 6285522 |
Rotational vibration compensation using a dedicated surface with a constant frequency pattern |
Sep. 4, 2001 |
| 6130798 |
Hardware PES calculator |
Oct. 10, 2000 |
| 6118615 |
Apparatus for positioning head of magnetic storage device |
Sep. 12, 2000 |
| 6079043 |
Magnetic disk apparatus |
Jun. 20, 2000 |
| 6064541 |
Servo pattern writing method for magnetic disk drives, and magnetic disk drive adopting the method |
May. 16, 2000 |
| 6058335 |
Automated technique for manufacturing hard disk drive |
May. 2, 2000 |
| 6040955 |
Self servo writing file |
Mar. 21, 2000 |
| 6034835 |
Multiple servo track types using multiple frequency servo patterns |
Mar. 7, 2000 |
| 6018430 |
Disk drive with multiple disk surfaces having improved allocation of servo sectors |
Jan. 25, 2000 |
| 6009537 |
Disk wear prevention by relocating data in response to a head slide count |
Dec. 28, 1999 |
| 5936790 |
Servo sector allocation for high sampling rate |
Aug. 10, 1999 |
| 5930068 |
Detecting servo defects in a disc drive |
Jul. 27, 1999 |
| 5903411 |
Method for reliably positioning a head in a disk drive to a guard band area |
May. 11, 1999 |
| 5875064 |
Method and system for accurate self-servowriting with normalization in a disk drive |
Feb. 23, 1999 |
| 5872677 |
Magnetic head position detecting method and magnetic disk apparatus |
Feb. 16, 1999 |
| 5835300 |
Dynamic compensation of servo burst measurement offsets in a disc drive |
Nov. 10, 1998 |
| 5818659 |
Quadrature servo pattern disk providing asynchronous digital PES |
Oct. 6, 1998 |
| 5815338 |
Apparatus and method of detecting head position error in magnetic disk drive |
Sep. 29, 1998 |
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