Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2006-05-23
2006-05-23
Edun, Muhammad (Department: 2655)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S044250, C369S047100, C369S124010
Reexamination Certificate
active
07050366
ABSTRACT:
Device and method for detecting a non-writable region of an optical recording medium, wherein a read channel1signal and a read channel2signal are sliced at respective slice levels to produce header mask signals, and a header region which is a non-writable region is determined for the header mask signal taking the slice levels and written/unwritten regions ion the disk, whereby permitting stabilization of servos because servo error signals, such as a tracking error signal, and a focus error signal can be held exactly at a header region even if the servos are not stable, that prevents deterioration of a data quality in writing and reading, and permitting to shift an optical pickup to a desired position and accurate measurement of an amount of eccentricity because there is no influence of the header in a track jump and a disk eccentricity measurement.
REFERENCES:
patent: 5959943 (1999-09-01), Yonezawa et al.
patent: 6614740 (2003-09-01), Park et al.
patent: 06-176376 (1994-06-01), None
patent: 07-326158 (1995-12-01), None
patent: 09-293244 (1997-11-01), None
patent: 10-275338 (1998-10-01), None
patent: 2000-173059 (2000-06-01), None
Kim Eung Soo
Park Sang On
Park You Jae
Birch & Stewart Kolasch & Birch, LLP
Edun Muhammad
LG Electronics Inc.
LandOfFree
Device and method for detecting non-writable region of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for detecting non-writable region of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for detecting non-writable region of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3571906