Presentation 2002/9/13
Physical Characteristics and Format of a Two-inch-Diameter Magneto-Optical Disk System with 3-GB Capacity
Yasumori HINO, Masahiro BIRUKAWA, Kenzo ISHIBASHI, Eiji UEDA, Toshio MATSUMOTO, Osamu KOYAMA, Koichiro NISHIIKAWA, Yasushi HOZUMI, Takaaki ASHINUMA, Eiichi FUJII,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) High-density recording four times that of a current DVD-RAM has been achieved by applying Domain Wall Displacement Detection (DWDD) technology using a conventional optical head which has the same wavelength of 660 nm and NA of 0.60 as the DVD head. It has been confirmed by using an alternating sampled servo and laser annealing of inter-track area that a recording density of 15 Gbit/inch^2 with a track pitch of 540 nm and bit length of 80 rim has sufficient system margins. A newly developed 1-bit distributed address format has achieved a redundancy of 23 %. These mean that a capacity of 3 GB on a two-inch-diameter disk is now available for mobile use. If applied to a digital video camera, one hour or more of MPEG2 video contents can be recorded at a bit rate of 6 Mbps.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Address Format / Sampled Servo / DWDD / Magneto Optical Recording / High Density Recording / System Margin / Edge Shift / Read Channel / Digital Video Camera
Paper # CPM2002-91
Date of Issue

Conference Information
Committee CPM
Conference Date 2002/9/13(1days)
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Paper Information
Registration To Component Parts and Materials (CPM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Physical Characteristics and Format of a Two-inch-Diameter Magneto-Optical Disk System with 3-GB Capacity
Sub Title (in English)
Keyword(1) Address Format
Keyword(2) Sampled Servo
Keyword(3) DWDD
Keyword(4) Magneto Optical Recording
Keyword(5) High Density Recording
Keyword(6) System Margin
Keyword(7) Edge Shift
Keyword(8) Read Channel
Keyword(9) Digital Video Camera
1st Author's Name Yasumori HINO
1st Author's Affiliation Storage Media Systems Development Center, Matsushita Electric Industrial Co.,Ltd.()
2nd Author's Name Masahiro BIRUKAWA
2nd Author's Affiliation Storage Media Systems Development Center, Matsushita Electric Industrial Co.,Ltd.
3rd Author's Name Kenzo ISHIBASHI
3rd Author's Affiliation Storage Media Systems Development Center, Matsushita Electric Industrial Co.,Ltd.
4th Author's Name Eiji UEDA
4th Author's Affiliation AVC Advanced Appliances Development Center, AVG Company, Matsushita Electric Industrial Co.,Ltd.
5th Author's Name Toshio MATSUMOTO
5th Author's Affiliation AVC Advanced Appliances Development Center, AVG Company, Matsushita Electric Industrial Co.,Ltd.
6th Author's Name Osamu KOYAMA
6th Author's Affiliation DM Project, Core Technology Development Headquarters, Canon Inc.
7th Author's Name Koichiro NISHIIKAWA
7th Author's Affiliation DM Project, Core Technology Development Headquarters, Canon Inc.
8th Author's Name Yasushi HOZUMI
8th Author's Affiliation DM Project, Core Technology Development Headquarters, Canon Inc.
9th Author's Name Takaaki ASHINUMA
9th Author's Affiliation DM Project, Core Technology Development Headquarters, Canon Inc.
10th Author's Name Eiichi FUJII
10th Author's Affiliation DM Project, Core Technology Development Headquarters, Canon Inc.
Date 2002/9/13
Paper # CPM2002-91
Volume (vol) vol.102
Number (no) 328
Page pp.pp.-
#Pages 7
Date of Issue