Owner LG Electronics Inc.

Inventors Park, Kyung Chan; Kim, Jin Yong

Agent Freehills

Pub. Number AU-B-2004244147

PCT Pub. Number WO2004/107332

Priority 10-2003-0035523 03.06.03 KR; 10-2003-0040353 20.06.03 KR

Filing date 3 June 2004

Wipo publication date 9 December 2004

Acceptance publication date 10 June 2010

G11B 5/58 (2006.01) Recording by magnetisation or demagnetisation of a record carrier - with 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

G11B 7/00 (2006.01) Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power

G11B 7/0037 (2006.01) Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power

G11B 7/12 (2006.01) Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Heads

G11B 7/24 (2006.01) Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Record carriers characterised by the selection of the material or by the structure or form

G11B 23/00 (2006.01) Record carriers not specific to the method of recording or reproducing