 |
|
 |
| |
 |
|
Class Information
Number: 369/43
Name: Dynamic information storage or retrieval > With servo positioning of transducer assembly over track combined with information signal processing
Description: Subject matter having closed-loop control of the alignment between the transducer assembly and the information storage track combined with handling of the information signal.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7598499 |
Charged-particle exposure apparatus |
Oct. 6, 2009 |
| 7546003 |
Suspension board with circuit and producing method thereof |
Jun. 9, 2009 |
| 7421359 |
Detecting back electromotive force voltage |
Sep. 2, 2008 |
| 7420895 |
Signal detection method and apparatus and optical recording and/or reproducing apparatus using the same |
Sep. 2, 2008 |
| RE40413 |
Method and apparatus for developing a dynamic servo signal from data |
Jul. 1, 2008 |
| 7319224 |
Semiconductor probe with resistive tip and method of fabricating the same |
Jan. 15, 2008 |
| 7317206 |
Conductive elements for thin film transistors used in a flat panel display |
Jan. 8, 2008 |
| 7301690 |
Micro-optical arrangement |
Nov. 27, 2007 |
| 7254525 |
Method and apparatus for automated analysis of hard disk drive performance |
Aug. 7, 2007 |
| 7206106 |
Holographic ROM reader having servo control |
Apr. 17, 2007 |
| 7009791 |
Position detecting method, information recording/reproducing device and information recording medium |
Mar. 7, 2006 |
| 6947233 |
Disk drive apparatus and method for compensating for error in servo-information-recorded position between heads |
Sep. 20, 2005 |
| 6873492 |
Magnetic media with readable topographical features in combination with a slider-mounted non-magnetic transducer |
Mar. 29, 2005 |
| 6839194 |
Disk drive apparatus and method for generating servo sector pulse |
Jan. 4, 2005 |
| 6762402 |
Apparatus for recording and reading data and method of recording and reading data using contact resistance measurement thereof |
Jul. 13, 2004 |
| 6680884 |
Apparatus and method for scanning a rotating information carrier |
Jan. 20, 2004 |
| 6564009 |
Apparatus for recording and/or reproducing data onto and/or from an optical disk and method thereof |
May. 13, 2003 |
| 6525897 |
Apparatus for developing a dynamic servo signal from data in a magnetic disc drive and method |
Feb. 25, 2003 |
| 6459940 |
Closed-loop compensation for kinematic error in harmonic driver for precision control applications |
Oct. 1, 2002 |
| 6452990 |
Synchronous detection of wide bi-phase coded servo information for disk drive |
Sep. 17, 2002 |
| 6421307 |
Optical device |
Jul. 16, 2002 |
| 6388413 |
Head switch seek on disc drives with multiple recording heads |
May. 14, 2002 |
| 6381088 |
Apparatus for developing a dynamic servo signal from data in a magnetic disc drive and method |
Apr. 30, 2002 |
| 6353397 |
Method and device for switching between different types of output signals of a position measuring system |
Mar. 5, 2002 |
| 6307689 |
Optical head and drive device for optical recording medium |
Oct. 23, 2001 |
| 6236032 |
Tracking pull-in circuit for reducing effect by a defect in a tracking servo loop |
May. 22, 2001 |
| 6218086 |
Method of forming ultrasmall structures and apparatus therefor |
Apr. 17, 2001 |
| 6154326 |
Optical head, disk apparatus, method for manufacturing optical head, and optical element |
Nov. 28, 2000 |
| 6137753 |
Runout calibration for disc drive system |
Oct. 24, 2000 |
| 6088662 |
Thermoelectric temperature sensing system in a computer hard disc drive |
Jul. 11, 2000 |
| 6043768 |
Device and method for switching between different operating modes of a transducer |
Mar. 28, 2000 |
| 5953513 |
Recording and reproducing device for recording and reproducing information from different kinds of storage media having different sector formats |
Sep. 14, 1999 |
| 5808977 |
Tracking method and recording means thereby |
Sep. 15, 1998 |
| 5780982 |
Method of and apparatus for controlling rotation number of motor |
Jul. 14, 1998 |
| 5764613 |
optical pickup apparatus |
Jun. 9, 1998 |
| 5621709 |
Tracking servo apparatus |
Apr. 15, 1997 |
| 5566145 |
Head tracking system in a disk drive |
Oct. 15, 1996 |
| 5537372 |
High density data storage system with topographic contact sensor |
Jul. 16, 1996 |
| 5521891 |
Speed detection apparatus, speed control motor, and track jump control circuit |
May. 28, 1996 |
| 5485445 |
Disc driving apparatus having means for placing a read record head at a predetermined position in the innermost region of a disc |
Jan. 16, 1996 |
| 5420841 |
Spindle motor control circuit for optical recording and regenerating system |
May. 30, 1995 |
| 5402280 |
Method and apparatus for runout correction due to disk slip or spindle imbalance |
Mar. 28, 1995 |
| 5384524 |
Voice coil motor control circuit and method for servo system control in a computer mass storage device |
Jan. 24, 1995 |
| 5375114 |
Recording and reading space control between a read/write probe and a recording medium |
Dec. 20, 1994 |
| 5329513 |
Angular relationship detection device and method |
Jul. 12, 1994 |
| 5315572 |
Information reproducing apparatus capable of eliminating jitters |
May. 24, 1994 |
| 5301173 |
Optical recording apparatus with two tracking error signals |
Apr. 5, 1994 |
| 5291472 |
Information recording and reproduction methods using oscillation medium or transducer |
Mar. 1, 1994 |
| 5283773 |
Steering laser beam while etching optical servo tracks for magnetic disks |
Feb. 1, 1994 |
| 5280466 |
Optical disc and apparatus for reproducing signals recorded on the same |
Jan. 18, 1994 |
|
|
|
 |
|
 |
|
| |
Randomly Featured Patents |
|
