Owner MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventors TAKAHASHI, Rie; KANDA, Yoshihiro

Pub. Number AU-A-2002332264

PCT Number PCT/JP02/09795

PCT Pub. Number WO2003/030157

Priority 2001-296822 27.09.01 JP

Filing date 24 September 2002

Wipo publication date 14 April 2003

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 007/004 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 020/10 Signal processing not specific to the method of recording or reproducing - Digital recording or reproducing

G11B 019/12 Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor - by sensing distinguishing features of records, e.g. diameter