Owner KONINKLIJKE PHILIPS ELECTRONICS N.V.

Inventors BORG, Hermanus, J.; MIJRITSKII, Andrei

Pub. Number AU-A-2003276587

PCT Number PCT/IB03/05226

PCT Pub. Number WO2004/055792

Priority 02080326.8 13.12.02 EP

Filing date 14 November 2003

Wipo publication date 9 July 2004

G11B 007/007 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - Arrangement of the information on the record carrier, e.g. form of tracks

G11B 007/09 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power - with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following