System and method for calibrating recording track offset of...

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C369S044260, C369S044340, C369S044350, C369S053280

Reexamination Certificate

active

07839732

ABSTRACT:
A system and method for calibrating a recording track offset of an optical storage device accessing an optical storage medium of land/groove type. The system includes: a tracking servo loop arranged to control tracking operations of an optical head of the optical storage device; a track offset control loop arranged to control the recording track offset for the tracking servo loop; a controller arranged to enable a latest value of the recording track offset to be a readout value for utilization in a recording process performed later; and a comparator arranged to compare a recording length with a threshold value and generate a flag to represent whether the recording length is a long recording length, wherein the latest value is derived from the track offset control loop.

REFERENCES:
patent: 4786849 (1988-11-01), Tateishi
patent: 5077719 (1991-12-01), Yanagi et al.
patent: 5220546 (1993-06-01), Fennema
patent: 5251194 (1993-10-01), Yoshimoto et al.
patent: 5343454 (1994-08-01), Watanabe et al.
patent: 5504726 (1996-04-01), Semba
patent: 5568461 (1996-10-01), Nishiuchi
patent: 5731924 (1998-03-01), Yun
patent: 5862112 (1999-01-01), Nagai et al.
patent: 5933410 (1999-08-01), Nakane et al.
patent: 6172960 (2001-01-01), Takemura et al.
patent: 6407968 (2002-06-01), Nakata et al.
patent: 6434096 (2002-08-01), Akagi
patent: 6452879 (2002-09-01), Tsukahara
patent: 6526006 (2003-02-01), Yoshimi et al.
patent: 6731573 (2004-05-01), Takeda
patent: 6839310 (2005-01-01), Yoshida
patent: 6975566 (2005-12-01), Park
patent: 2002/0105896 (2002-08-01), Kusumoto et al.
patent: 2004/0125713 (2004-07-01), Takahashi et al.
patent: 2007/0076545 (2007-04-01), Doi
patent: 2008/0094975 (2008-04-01), Lee
patent: 2008/0316877 (2008-12-01), Wisse
patent: 2009/0296546 (2009-12-01), Doi
patent: 1932992 (2007-03-01), None
patent: 101341534 (2009-01-01), None
patent: 0543295 (1993-05-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System and method for calibrating recording track offset 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 System and method for calibrating recording track offset of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for calibrating recording track offset of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4242379

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.