High-speed tracking control system for broadcast-use optical disk drive

被引：0

作者：

Koide, Daiichi ^{[1
]}

Tokumaru, Haruki ^{[1
]}

Ohishi, Kiyoshi ^{[2
]}

Kuramochi, Kazuyoshi ^{[2
]}

Miyazaki, Toshimasa ^{[3
]}

机构：

[1] Science and Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan

[2] Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka, Nligata 940-2188, Japan

[3] Nagaoka National College of Technology, 888 Nishikatakai, Nagaoka, Niigata 940-8532, Japan

来源：

Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 1600年 / 45卷 / 2 B期

关键词：

A high-speed tracking control system using feed-forward control with the zero phase error tracking method (ZPET-FF control) has been applied to high-data-transfer-rate and high-density optical disk drives for broadcast use. To realize high-data-transfer-rate optical disk drives; the optical head must be controlled for track-following with an accuracy of less than 9 nm during high-speed disk rotation. We compared the characteristics of the tracking accuracy of ZPET-FF control with those of conventional feedback control at 15000 rpm and analyzed their frequency responses in a simulation. The results show that the ZPET-FF control is accurate and robust toward periodic disturbances at high speeds. Experimental results show that ZPET-FF control is more precise than feedback control; and the residual tracking error is suppressed to 8.02nm at a linear velocity of 18.3 m/s in an optical disk drive having a blue-violet laser (wavelength: 405 nm); an object lens with a numerical aperture (NA) of 0.85; and media with a track pitch of 0.32 μ. © 2006 The Japan Society of Applied Physics optical disk drive; high-speed; track-following control;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Journal article (JA)

引用

页码：1187 / 1192

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