Physical characteristics and format of a two-inch-diameter magneto-optical disk system with 3-GB capacity

Author

Hino, Yasumori ; Birukawa, Masahiro ; Ishibashi, Kenzo ; Ueda, Eiji ; Matsumoto, Toshio ; Koyama, Osamu ; Nishikawa, Koichiro ; Hozumi, Yasushi ; Ashinuma, Takaaki ; Fujii, Eiichi

Author_Institution

Storage Media Syst. Dev. Center, Matsushita Electr. Ind. Co. Ltd., Kadoma, Japan

fYear

2002

fDate

2002

Firstpage

42

Lastpage

44

Abstract

A small and high-density rewritable optical disk has been anticipated for mobile devices. A two-inch-diameter magneto-optical disk system, which adopts a DWDD (domain wall displacement detection) and sampled servo technique, was reported in a previous work (T. Shiratori et al, J. Magn. Soc. Jpn., vol. 22, supp. no. S2, pp. 47-50, 1998; M. Birukawa et al, Proc. MORIS2002). This paper describes the embossed-pit structure, a new 1-bit-distributed address format (1-bit DAF), the data format, and the physical characteristics of the disk, which allows a capacity of 3 GB.

Keywords

magnetic domain walls; magneto-optical recording; optical disc storage; optical signal detection; portable computers; 2 in; 3 GB; DWDD; data format; disk capacity; disk format; distributed address format; domain wall displacement detection; embossed-pit structure; high-density rewritable optical disk; magneto-optical disk system; mobile devices; physical characteristics; sampled servo technique; Automatic voltage control; Cities and towns; Delta modulation; Laser theory; Magnetic cores; Magnetooptic devices; Magnetooptic recording; Optical crosstalk; Optical devices; Servomechanisms;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Memory and Optical Data Storage Topical Meeting, 2002. International Symposium on

Print_ISBN

0-7803-7379-0

Type

conf

DOI

10.1109/OMODS.2002.1028561

Filename

1028561