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1. IN2417/DELNP/2009 - AN APPARATUS FOR RECORDING AND/OR REPRODUCING DATA

Office
India
Application Number 2417/DELNP/2009
Application Date 14.04.2009
Publication Number 2417/DELNP/2009
Publication Date 22.05.2009
Publication Kind A
IPC
G11B 5/58
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48Disposition or mounting of heads relative to record carriers
58with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
Applicants LG ELECTRONICS INC.
Inventors KIM  Jin Yong
PARK  Kyung Chan
Priority Data 10-2003-0035523 03.06.2003 KR
1020030040353 20.06.2003 KR
Title
(EN) AN APPARATUS FOR RECORDING AND/OR REPRODUCING DATA
Abstract
(EN) Disclosed herein are a high-density recording medium, such as a high-density optical disc and a recording and/or reproducing device therefor. At a transition area of the high-density optical disc allocated between a clamping area and an information area of the high-density optical disc is formed a step having a prescribed slope so that the high-density optical disc does not collide with an objective lens of an optical pickup provided in an optical disc device although the objective lens of the optical pickup is upwardly moved toward a recording layer of the high-density optical disc until it moves to the maximum working distance when the high-density optical disc, such as a Blu-ray disc, is improperly placed on a turntable provided in the o...