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Class Information
Number: 369/44.11
Name: Dynamic information storage or retrieval > With servo positioning of transducer assembly over track combined with information signal processing > Optical servo system
Description: Subject matter wherein the servo positioning is controlled by a radiant energy transducer.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619951 |
Optical pickup actuator and optical recording and/or reproducing apparatus |
Nov. 17, 2009 |
| 7592585 |
Optical pickup |
Sep. 22, 2009 |
| 7586825 |
Wave retardation plate and optical pickup device has them |
Sep. 8, 2009 |
| 7583569 |
Apparatus and related method for generating a tracking error signal in an optical disc drive |
Sep. 1, 2009 |
| 7580331 |
Center error mechanical center adjustment |
Aug. 25, 2009 |
| 7564745 |
Optical pickup and optical disk apparatus |
Jul. 21, 2009 |
| 7558168 |
Optical pickup device with a tilt adjusting actuator |
Jul. 7, 2009 |
| 7558164 |
Optical pick-up actuator |
Jul. 7, 2009 |
| 7558160 |
Demodulation of a focusing error signal during a focus search for a lens focusing control in an optical disc system |
Jul. 7, 2009 |
| 7550700 |
Light-receiving semiconductor device and optical pickup device |
Jun. 23, 2009 |
| 7542382 |
Optical pick-up head, optical information apparatus, and optical information reproducing method |
Jun. 2, 2009 |
| 7543196 |
Apparatus for testing integrated circuit |
Jun. 2, 2009 |
| 7539087 |
Optical disk apparatus |
May. 26, 2009 |
| 7522482 |
Optical pickup device and apparatus for reading data from optical storage medium |
Apr. 21, 2009 |
| 7502298 |
Optical pickup apparatus for optical data media of different formats and method thereof |
Mar. 10, 2009 |
| 7489600 |
Object lens driving device with reduced tilt during focusing and tracking operations and optical pickup and optical disk drive utilizing the same |
Feb. 10, 2009 |
| 7483345 |
Optical pickup apparatus capable of compensating thickness deviation of optical recording media |
Jan. 27, 2009 |
| 7468822 |
Holographic recording medium |
Dec. 23, 2008 |
| 7468851 |
Optical head device and optical recording/reproducing apparatus utilizing the same |
Dec. 23, 2008 |
| 7460444 |
Optical disk drive and method for controlling sled motor within optical disk drive |
Dec. 2, 2008 |
| 7458086 |
Actuator used with an optical pickup |
Nov. 25, 2008 |
| 7443780 |
Optical pickup device and optical disk device having a diffraction element so that a first light beam and a second light beam comport with each other |
Oct. 28, 2008 |
| 7440361 |
Optical pickup apparatus |
Oct. 21, 2008 |
| 7440383 |
Optical pickup device and recording and/or reproducing apparatus |
Oct. 21, 2008 |
| 7414926 |
Optical head device that prevents the displacement of the optical axis caused by expansion or contraction due to temperature change |
Aug. 19, 2008 |
| 7411872 |
Servo-tracking and three-dimensional alignment in page-based data optical storage |
Aug. 12, 2008 |
| 7400557 |
Optical disk recording and reproducing apparatus |
Jul. 15, 2008 |
| 7400821 |
Device and method for reproducing photographic sound recordings |
Jul. 15, 2008 |
| 7391701 |
Methods and systems for in-track optical positioning |
Jun. 24, 2008 |
| 7388815 |
Wiring layout structure for optical head device |
Jun. 17, 2008 |
| 7379405 |
Method and optical disk drive for promptly protecting voice coil motor thereof from over current |
May. 27, 2008 |
| 7376063 |
Control circuit of optical storage device and method thereof |
May. 20, 2008 |
| 7369335 |
Optical pickup actuator |
May. 6, 2008 |
| 7362691 |
Optical disc having tracking polarity information, and apparatuses and methods for recording and reproducing user data on the same |
Apr. 22, 2008 |
| 7342849 |
Recording and/or playback device |
Mar. 11, 2008 |
| 7342853 |
Optical disc system and method for managing shock during data record/play |
Mar. 11, 2008 |
| 7342867 |
Optical head device, optical recording device, and optical recording method |
Mar. 11, 2008 |
| 7307940 |
Optical pick-up device |
Dec. 11, 2007 |
| 7304915 |
Actuator for optical disk system and apparatus for providing signal for driving the actuator |
Dec. 4, 2007 |
| 7295495 |
XY platform device with nanoscale precision |
Nov. 13, 2007 |
| 7283432 |
Method and device for correcting optical path deviation of an optical pickup in an optical recording system |
Oct. 16, 2007 |
| 7283440 |
Tracking error signal detecting method selectively using a push-pull method, an improved push-pull method, and a three beam method and optical recording/reproducing apparatus using the same |
Oct. 16, 2007 |
| 7254098 |
CD-DVD compatible optical pickup and optical recording and/or reproducing apparatus using the same |
Aug. 7, 2007 |
| 7254097 |
Optical disc apparatus |
Aug. 7, 2007 |
| 7221523 |
Optical pickup and optical disk device |
May. 22, 2007 |
| 7190642 |
Focus servo device |
Mar. 13, 2007 |
| 7177240 |
Optical disc system and method for controlling movement of an optical pickup to an innermost perimeter of an optical disc using track information |
Feb. 13, 2007 |
| 7170609 |
Sensor systems and methods for quantification of physical parameters, chemical and biochemical volatile and nonvolatile compounds in fluids |
Jan. 30, 2007 |
| 7145848 |
Optical disk apparatus using tilt and aberration correction control system |
Dec. 5, 2006 |
| 7145842 |
Objective lens moving control method and apparatus |
Dec. 5, 2006 |
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