Owner MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventors WATANABE, Katsuya; FUJIUNE, Kenji; KUZE, Yuuichi; YAMADA, Shin-ichi

Pub. Number AU-A-2002249600

PCT Pub. Number WO2002/089124

Priority 2001-122433 20.04.01 JP

Filing date 15 April 2002

Wipo publication date 11 November 2002

G11B 007/085 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 into, or out of, its operative position

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