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Class Information
Number: 369/44.32
Name: Dynamic information storage or retrieval > With servo positioning of transducer assembly over track combined with information signal processing > Optical servo system > Means to compensate for defect or abnormal condition
Description: Subject matter wherein the servo system structure or operation has means to avoid the servo system being affected by, or so that it is responsive to and corrects for an adverse situation.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626906 |
Tilt control method and apparatus for optical disc recording and playback apparatus |
Dec. 1, 2009 |
| 7626903 |
Optical disc apparatus and information recording and reproducing method |
Dec. 1, 2009 |
| 7627877 |
Objective lens actuator and optical pickup unit employing the same |
Dec. 1, 2009 |
| 7619954 |
Method for controlling spindle in optical disc device |
Nov. 17, 2009 |
| 7616550 |
Optical pickup unit |
Nov. 10, 2009 |
| 7613082 |
Optical pickup device, optical recording and reproducing apparatus and gap detection method |
Nov. 3, 2009 |
| 7613083 |
Optical scanning device |
Nov. 3, 2009 |
| 7613090 |
Apparatus and method for controlling tilt in optical disc device |
Nov. 3, 2009 |
| 7613099 |
Solid immersion lens, condensing lens, optical pickup device, optical recording and reproducing apparatus and method of forming solid immersion lens |
Nov. 3, 2009 |
| 7606120 |
Objective lens, optical head, optical system, and design method for objective lens |
Oct. 20, 2009 |
| 7602690 |
Aberration adjustment device, method thereof, optical pickup, and optical information recording apparatus |
Oct. 13, 2009 |
| 7596062 |
Method of preventing optical recording media from being fractured and apparatus thereof |
Sep. 29, 2009 |
| 7593295 |
Apparatus and method for compensating for defect of optical disc |
Sep. 22, 2009 |
| 7590034 |
Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecti |
Sep. 15, 2009 |
| 7587813 |
Assembly device for optical disk |
Sep. 15, 2009 |
| 7580327 |
Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method |
Aug. 25, 2009 |
| 7577070 |
Optical recording medium tilt compensation device, tilt compensation method, and optical information recording apparatus |
Aug. 18, 2009 |
| 7577069 |
Tilt control method and apparatus for optical disc recording and playback apparatus |
Aug. 18, 2009 |
| 7570552 |
Optical disk apparatus which changes a tilt value of an objective lens and method of recording with such optical disk apparatus |
Aug. 4, 2009 |
| 7564747 |
Method for determining a compensation value for tracking error signal |
Jul. 21, 2009 |
| 7558168 |
Optical pickup device with a tilt adjusting actuator |
Jul. 7, 2009 |
| 7558167 |
Tilt detecting apparatus and method, tilt correcting apparatus having the same, and information recording/reproducing apparatus having the tilt correcting apparatus |
Jul. 7, 2009 |
| 7554897 |
Data reproducer |
Jun. 30, 2009 |
| 7551526 |
Disk drive apparatus and spherical aberration correcting method |
Jun. 23, 2009 |
| 7551528 |
Method and apparatus for tracking servo control of an optical disc playback apparatus |
Jun. 23, 2009 |
| 7551529 |
Optical disc apparatus |
Jun. 23, 2009 |
| 7548495 |
Optical storage device, recording method of optical storage medium and program |
Jun. 16, 2009 |
| 7542385 |
Optical disk unit and aberration correcting method used for this |
Jun. 2, 2009 |
| 7542386 |
Optical disc player, method, and media compensating for tilt/skew using RF envelope |
Jun. 2, 2009 |
| 7542387 |
Defocus detection device, defocus detection method and optical disk unit using the same |
Jun. 2, 2009 |
| 7539089 |
Optical disc device |
May. 26, 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 |
| 7522486 |
Optical disc apparatus |
Apr. 21, 2009 |
| 7519979 |
Optical head having a position detection portion and optical disk device utilizing the optical head |
Apr. 14, 2009 |
| 7518961 |
Optical disk recording and reproducing apparatus for recording and reproducing data in and from optical disk |
Apr. 14, 2009 |
| 7515521 |
Hologram recording and reproducing apparatus |
Apr. 7, 2009 |
| 7505390 |
Compatible optical pickup |
Mar. 17, 2009 |
| 7502286 |
Rotation correcting apparatus and optical disk apparatus |
Mar. 10, 2009 |
| 7496008 |
Apparatus for removing offset of phase locked loop circuit and method thereof |
Feb. 24, 2009 |
| 7492684 |
Method and apparatus for controlling a tilt between an optical axis of an optical pick-up head and an optical disc |
Feb. 17, 2009 |
| 7492678 |
Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion |
Feb. 17, 2009 |
| 7492677 |
Method and device for playing optical discs and method for determining tracking quality |
Feb. 17, 2009 |
| 7489459 |
Lens actuating apparatus |
Feb. 10, 2009 |
| 7489601 |
Disk drive |
Feb. 10, 2009 |
| 7489603 |
Optical pickup transfer apparatus |
Feb. 10, 2009 |
| 7486602 |
Tilt control for reading information |
Feb. 3, 2009 |
| 7486597 |
Pick-up angle adjustment mechanism for optical disk apparatus |
Feb. 3, 2009 |
| 7486596 |
Method and apparatus compensating for tilt |
Feb. 3, 2009 |
| 7483347 |
Optical disk apparatus |
Jan. 27, 2009 |
| 7480220 |
Method of tilt compensation in an optical recording device |
Jan. 20, 2009 |
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