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Class Information
Number: 369/44.34
Name: Dynamic information storage or retrieval > With servo positioning of transducer assembly over track combined with information signal processing > Optical servo system > Sampling servo system
Description: Subject matter wherein an instantaneous value of a variable is obtained at regular intervals (e.g., sample and hold, be it analog or digital storage, etc.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616537 |
Focus search apparatus and method |
Nov. 10, 2009 |
| 7613081 |
Control of stepper motor in an optical disc |
Nov. 3, 2009 |
| RE40946 |
Optical disk apparatus |
Oct. 27, 2009 |
| 7593295 |
Apparatus and method for compensating for defect of optical disc |
Sep. 22, 2009 |
| 7583569 |
Apparatus and related method for generating a tracking error signal in an optical disc drive |
Sep. 1, 2009 |
| 7561501 |
Servo control device, optical disk drive, and servo control method |
Jul. 14, 2009 |
| 7558170 |
Optical pick-up head, optical information apparatus, and optical information reproducing method |
Jul. 7, 2009 |
| 7518963 |
Phase difference detection circuit and optical disk device |
Apr. 14, 2009 |
| 7512043 |
Apparatus and method for generating a tracking error signal in an optical disc drive |
Mar. 31, 2009 |
| 7502286 |
Rotation correcting apparatus and optical disk apparatus |
Mar. 10, 2009 |
| 7486595 |
Tracking error detector |
Feb. 3, 2009 |
| 7471596 |
Optical disc reproduction device and tracking control method applied to an optical disc reproduction device |
Dec. 30, 2008 |
| 7466959 |
Apparatus and method for IF switching in a dual-tuner, dual-IF, HD radio and FM/AM radio receiver |
Dec. 16, 2008 |
| 7463560 |
Optical disc device |
Dec. 9, 2008 |
| 7463563 |
Deficiency detecting apparatus for optical disk |
Dec. 9, 2008 |
| 7409461 |
Dynamic file-based routing in a broadband communications system |
Aug. 5, 2008 |
| 7397736 |
Optical disc device and tracking controlling method therefor |
Jul. 8, 2008 |
| 7397753 |
System and method for measuring signal deviation used in an optical recording/reproducing apparatus |
Jul. 8, 2008 |
| 7385887 |
Address signal position detection apparatus, optical disk playback apparatus, and address signal position detection method |
Jun. 10, 2008 |
| 7385896 |
Focusing controller apparatus and method for an optical disk drive |
Jun. 10, 2008 |
| 7376054 |
Disc reproduction device |
May. 20, 2008 |
| 7356311 |
Wireless audio signal and control signal device and method thereof |
Apr. 8, 2008 |
| 7345964 |
Method and related apparatus for deriving a tracking error signal |
Mar. 18, 2008 |
| 7342854 |
Apparatus for generating tracking error signals |
Mar. 11, 2008 |
| 7330413 |
Smart burn method for optical drive |
Feb. 12, 2008 |
| 7324419 |
Focus control via AC input signal |
Jan. 29, 2008 |
| 7313057 |
Method for adjusting a control parameter and optical disc drive server system using the same |
Dec. 25, 2007 |
| 7310297 |
Optical disk device |
Dec. 18, 2007 |
| 7307930 |
Optical disk apparatus |
Dec. 11, 2007 |
| 7304918 |
Servo error signal generation circuit and servo error signal generation method |
Dec. 4, 2007 |
| 7289399 |
Tracking error detection apparatus including reduction in false tracking error detection during phase error detection |
Oct. 30, 2007 |
| 7280448 |
Positioning control device and positioning control method |
Oct. 9, 2007 |
| 7263049 |
Semi-synchronous receiver and apparatus for reading information |
Aug. 28, 2007 |
| 7260031 |
Digital focus and tracking servo system with one-track jump |
Aug. 21, 2007 |
| 7257055 |
Method and related apparatus for diagnosing crosstalk within an optical pick-up unit by utilizing firmware |
Aug. 14, 2007 |
| 7254099 |
Method and related apparatus for deriving a tracking error signal |
Aug. 7, 2007 |
| 7242646 |
Track locking method for optical disk drive and apparatus |
Jul. 10, 2007 |
| 7239583 |
Tracking error detection apparatus |
Jul. 3, 2007 |
| 7224647 |
Method, apparatus, and medium for controlling a servo using a detected header field signal, and method, apparatus, and medium for detecting the header field signal |
May. 29, 2007 |
| 7221638 |
Electronic circuit for decoding a read signal from an optical storage medium |
May. 22, 2007 |
| 7218582 |
Optical disc drive |
May. 15, 2007 |
| 7212474 |
Detecting anomalies in a scanning signal |
May. 1, 2007 |
| 7206262 |
Optical disk recording/reproducing device |
Apr. 17, 2007 |
| 7187629 |
Method and related apparatus for deriving a tracking error signal |
Mar. 6, 2007 |
| 7180835 |
Data access method for improving performance of an optical disk drive |
Feb. 20, 2007 |
| 7177244 |
Optical disc apparatus |
Feb. 13, 2007 |
| 7177245 |
Apparatus for generating tracking error signals |
Feb. 13, 2007 |
| 7170831 |
Optical pickup astigmatism measuring method, optical pickup astigmatism adjusting method, and optical pickup astigmatism measuring system |
Jan. 30, 2007 |
| 7170833 |
Apparatus for scanning optical recording media using DPD tracking method with analog and digital delay elements |
Jan. 30, 2007 |
| 7167423 |
Optical disc apparatus |
Jan. 23, 2007 |
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