Owner FUJITSU LIMITED

Inventors MORIMOTO, Yasuaki; AOYAMA, Nobuhide; AKIYAMA, Ryota

Pub. Number AU-A-2002219607

PCT Pub. Number WO2003/060897

Filing date 11 January 2002

Wipo publication date 30 July 2003

G11B 011/105 Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group

G11B 007/24 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 020/10 Signal processing not specific to the method of recording or reproducing - Digital recording or reproducing

G11B 007/0045 Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power