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Class Information
Number: 369/53.13
Name: Dynamic information storage or retrieval > Condition indicating, monitoring, or testing > Including radiation storage or retrieval > Having abnormal condition indicating > Due to unwanted operational condition of record carrier
Description: Subject matter wherein the abnormal condition is due to an undesirable operational condition of the record medium.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7564752 |
Disc signal evaluation apparatus and disc signal evaluation method |
Jul. 21, 2009 |
| 7564747 |
Method for determining a compensation value for tracking error signal |
Jul. 21, 2009 |
| 7551531 |
Optical recording medium having recording capacity information and method for indicating recording capacity |
Jun. 23, 2009 |
| 7545719 |
Optical disk apparatus capable of measuring and recording signal condition, and method thereof |
Jun. 9, 2009 |
| 7505385 |
Method of detecting optical disc error information |
Mar. 17, 2009 |
| 7492678 |
Apparatus and method for stabilizing operation of disc driver in section for setting mode conversion |
Feb. 17, 2009 |
| 7483352 |
Recording medium reproduction device |
Jan. 27, 2009 |
| 7463084 |
Method and device for suppressing variation of DC level of signal reproduced from optical storing media |
Dec. 9, 2008 |
| 7450483 |
Information carrier apparatus and information carrier eccentricity correction method |
Nov. 11, 2008 |
| 7440366 |
Optical disk drive for driving copy-controlled CD |
Oct. 21, 2008 |
| 7394735 |
Apparatus and method of updating filter tap coefficients of an equalizer |
Jul. 1, 2008 |
| 7274629 |
Method for correcting influence of thickness unevenness of recording medium, information recording/reproducing apparatus using the same method and optical head unit |
Sep. 25, 2007 |
| 7248552 |
Method and apparatus for determining recording pulse parameters for an optical disc |
Jul. 24, 2007 |
| 7233554 |
Disk drive system employing effective disk surface stabilization mechanism |
Jun. 19, 2007 |
| 7196990 |
Information recording scheme for preventing recording failure resulting from impact or vibration |
Mar. 27, 2007 |
| 7099251 |
Method of controlling laser power and optical disk player |
Aug. 29, 2006 |
| 7023777 |
Optical disk recording/reproduction apparatus with a detection means for detecting dirt on the optical disk |
Apr. 4, 2006 |
| 6977477 |
Systems, apparatus, and methods for motor control |
Dec. 20, 2005 |
| 6876613 |
Disc crack detection method and method of controlling speed of disc drive using the same |
Apr. 5, 2005 |
| 6804797 |
Method of verifying defect management area information of disc and test apparatus for performing the same |
Oct. 12, 2004 |
| 6791926 |
Method and device for finding conditions on recording pulse of optical disk |
Sep. 14, 2004 |
| 6765848 |
Focus and tracking repeatable runout compensator |
Jul. 20, 2004 |
| 6510117 |
Writing strategy for CD-RW |
Jan. 21, 2003 |
| 6404714 |
Method and apparatus for recording data on an optical disk |
Jun. 11, 2002 |
| 6396783 |
Mechanism for controlling spacing between optical head and storage medium in optical storage systems |
May. 28, 2002 |
| 6259661 |
Disk reading apparatus with rotary speed adjustment feature |
Jul. 10, 2001 |
| 6243339 |
Method and device for writing optical record carriers |
Jun. 5, 2001 |
| 6111841 |
Apparatus for and method of controlling playback light intensity for an optical recording medium |
Aug. 29, 2000 |
| 5974014 |
Disc reproducing apparatus and method |
Oct. 26, 1999 |
| 5878014 |
Device for recording and/or reproducing information |
Mar. 2, 1999 |
| 5805549 |
Using defect read from a disk to represent a machine-readable code |
Sep. 8, 1998 |
| 5787062 |
Disc-thickness-and-warp detecting apparatus |
Jul. 28, 1998 |
| 5784352 |
Apparatus and method for accessing data on multilayered optical media |
Jul. 21, 1998 |
| 5715223 |
Method of measuring a deviation between a centerline between grooves and a control prepit pattern on a disc |
Feb. 3, 1998 |
| 5715221 |
Method for managing defects in an information recording medium, and a device and information recording medium using said method |
Feb. 3, 1998 |
| 5715222 |
Playback clock generating circuit |
Feb. 3, 1998 |
| 5577011 |
Method for preventing erroneous recording in compact disc player |
Nov. 19, 1996 |
| 5559780 |
Recording apparatus for an optical recording medium |
Sep. 24, 1996 |
| 5546372 |
Information detection light intensity control apparatus in optical disc recorded-information reproducing apparatus |
Aug. 13, 1996 |
| 5532992 |
Recording and reproducing method for writable type disk driving apparatus |
Jul. 2, 1996 |
| 5513160 |
Optical disc and contamination detection system in an apparatus for recording and reproducing the same |
Apr. 30, 1996 |
| 5475668 |
Method of producing file management structures, information reproduction apparatus and information reproducing method |
Dec. 12, 1995 |
| 5442610 |
Method for processing an anomalous writing in an optical disk apparatus |
Aug. 15, 1995 |
| 5438560 |
Apparatus and method for recording/reproducing optical information and optical disk-shaped recording medium |
Aug. 1, 1995 |
| 5331616 |
Information recording and reproducing apparatus with self-diagnosis information storage mechanism |
Jul. 19, 1994 |
| 5297115 |
Detection of saved sectors on an optical disk |
Mar. 22, 1994 |
| 5285436 |
Method of avoiding medium defects in record/reproduce apparatus |
Feb. 8, 1994 |
| 5214631 |
Disc recording/reproducing apparatus having a servo system capable of successively recording and reproducing tracks on a disc irrespective of turbulence of the servo system due to a disturbanc |
May. 25, 1993 |
| 5210735 |
Optical recording/reproducing system, having function of detecting dirt deposition on optical pickup |
May. 11, 1993 |
| 5099464 |
Magneto optical disk recording apparatus including a plurality of connected recording unit buffer memories |
Mar. 24, 1992 |
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