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Class Information
Number: 360/77.11
Name: Dynamic magnetic information storage or retrieval > Automatic control of a recorder mechanism > Controlling the head > Track centering > Rotary carrier > By tracking signal recorded on or immediately beneath surface > Continuous servo signal
Description: Subject matter wherein the record carrier includes a continuous path along which a transducer positioning servo control signal is stored.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623317 |
Magnetic disk device and magnetic recording medium |
Nov. 24, 2009 |
| 7561361 |
Dynamic synchronization of timing signals |
Jul. 14, 2009 |
| 7430092 |
Control apparatus, storage apparatus, and computer product |
Sep. 30, 2008 |
| 7382564 |
Acquiring spiral servo information on a storage surface |
Jun. 3, 2008 |
| 7283320 |
Magnetic recording medium including servo and data bands in the magnetic layer |
Oct. 16, 2007 |
| 7230786 |
Method and apparatus for dynamic placement of an integration window in a disk drive having a disk surface with spiral servo information written thereon |
Jun. 12, 2007 |
| 7136253 |
Method and apparatus for providing multi-point position demodulation of a read head when using spiral-written servo information |
Nov. 14, 2006 |
| 7072131 |
Water marking in a data interval gap |
Jul. 4, 2006 |
| 7019937 |
Method and apparatus for determining a transducer's reference position in a disk drive having a disk surface with spiral servo information written thereon |
Mar. 28, 2006 |
| 7009805 |
Detection of track misregistration within user data channel |
Mar. 7, 2006 |
| 6943974 |
Storage device, program for controlling storage device, method for controlling storage device and recording medium |
Sep. 13, 2005 |
| 6760186 |
Disk drive having first-written servo wedge marked and method for forming marked servo wedges |
Jul. 6, 2004 |
| 6608731 |
Dynamic reduction of track shape errors in disc drives |
Aug. 19, 2003 |
| 6204990 |
Circuit and method for determining the position of a read head for a magnetic disk drive device |
Mar. 20, 2001 |
| 6122134 |
Combined longitudinal and transversal tracking |
Sep. 19, 2000 |
| 6057977 |
Compact servo pattern optimized for M-R heads |
May. 2, 2000 |
| 6046879 |
Weighted linearization of a position error signal in a disc drive |
Apr. 4, 2000 |
| 6028731 |
Method and system for providing servo signals to a magnetic head positioning system of disk drive |
Feb. 22, 2000 |
| 6002542 |
Magnetic disc read head positioning device and method |
Dec. 14, 1999 |
| 5903411 |
Method for reliably positioning a head in a disk drive to a guard band area |
May. 11, 1999 |
| 5875066 |
Method and apparatus for real-time filtering of a position error signal for a disk drive servo system |
Feb. 23, 1999 |
| 5801897 |
Head positioning control system for use in a disk storage system |
Sep. 1, 1998 |
| 5684972 |
Programmable servo burst sequencer for a disk drive |
Nov. 4, 1997 |
| 5568331 |
Method of head positioning and magnetic recording disk drive using the same |
Oct. 22, 1996 |
| 5555139 |
Dual track servo system with position interpolation |
Sep. 10, 1996 |
| RE35302 |
Magnetic disc apparatus |
Jul. 23, 1996 |
| 5488519 |
Recording and reproducing device having conductive spindle |
Jan. 30, 1996 |
| 5457586 |
Method and arrangement for positioning a magnetic head relative to the storage medium of a magnetic layer storage |
Oct. 10, 1995 |
| 5369535 |
Fixed block architecture disk file with improved position identification and error handling |
Nov. 29, 1994 |
| 5325245 |
Method and apparatus for writing magnetic head positioning signal |
Jun. 28, 1994 |
| 5283773 |
Steering laser beam while etching optical servo tracks for magnetic disks |
Feb. 1, 1994 |
| 5212604 |
Method and apparatus for processing positioning signals in a record |
May. 18, 1993 |
| 5193036 |
Transducer head skew arrangement for disk drive system |
Mar. 9, 1993 |
| 5140571 |
Disk drive apparatus with intermittently operated servo signal processor for low power consumption |
Aug. 18, 1992 |
| 5119248 |
Method of recording servo signals |
Jun. 2, 1992 |
| 5073833 |
Dual sector servo system for disk file with separate read and write heads |
Dec. 17, 1991 |
| 5047880 |
Magnetic disk pack with a servo recording surface |
Sep. 10, 1991 |
| 5032932 |
Hard disk testing method |
Jul. 16, 1991 |
| 5021910 |
Buried servo magnetic head |
Jun. 4, 1991 |
| 5012363 |
Servo pattern writing method for a disk storage device |
Apr. 30, 1991 |
| 5003412 |
Method and apparatus for positioning a read/write mechanism |
Mar. 26, 1991 |
| 4999558 |
Position control system |
Mar. 12, 1991 |
| 4980784 |
Magnetic disk apparatus |
Dec. 25, 1990 |
| 4975791 |
Recording system having head transducers with controlled skew |
Dec. 4, 1990 |
| 4974109 |
Hard disk drive employing a reference track to compensate for tracking error |
Nov. 27, 1990 |
| 4924334 |
Magnetic storage device with track guidance system |
May. 8, 1990 |
| 4910617 |
Disk drive head positioning servo system utilizing encoded track zone information |
Mar. 20, 1990 |
| 4858221 |
Preformatted information medium and optical reader device |
Aug. 15, 1989 |
| 4779148 |
System and method for detecting deviations in the positioning of a head relative to a track on the disc of a disc storage unit wherein the unit generates a ramp signal having a gradient determ |
Oct. 18, 1988 |
| 4729048 |
Magnetic transducer combination with formatting, data, and servo heads |
Mar. 1, 1988 |
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