25 GB Read-Only Disk System using the Two-Dimensional Equalizer
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概要
- 論文の詳細を見る
In order to achieve a higher density disk system, we applied a two-dimensional equalizer along with a limit equalizer to an optical disk drive system which has an objective lens with a numerical aperture of 0.85 and a thin transparent cover layer of 0.1 mm thickness. Consequently we realized the 25 GB read-only disk system with sufficient margins against disk tilt and defocus. The two-dimensional equalizer is composed of a cross-talk cancel system and a tangential adaptive equalizer, and could prevent deterioration due to inter-symbol interference and cross-talk from adjacent tracks. Using the limit equalizer could prevent deterioration due to disk noise. By measuring the jitter with the limit equalizer, which has an ability to expand the system margin almost equivalent to that of the Viterbi decoder, we could evaluate the disk quality for standardization and verification.
- 2001-03-30
著者
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Kuribayashi Hiroki
Corporate R&d Laboratories Pioneer Corporation
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Yokogawa Fumihiko
Corporate R&d Laboratories Pioneer Corporation
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Nishiwaki Hiroshi
Corporate R&d Laboratories Pioneer Corporation
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YAMAMOTO Kaoru
Corporate R&D Laboratories, Pioneer Corporation
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TOMITA Yoshimi
Corporate R&D Laboratories, Pioneer Corporation
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MIYANABE Shogo
Corporate R&D Laboratories, Pioneer Corporation
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Kuribayashi Hiroki
Corporate R&D Laboratories, Pioneer Corporation, 6-1-1 Fujimi, Tsurugashima-shi, Saitama 350-2288, Japan
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Miyanabe Shogo
Corporate R&D Laboratories, Pioneer Corporation, 6-1-1 Fujimi, Tsurugashima-shi, Saitama 350-2288, Japan
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Tomita Yoshimi
Corporate R&D Laboratories, Pioneer Corporation, 6-1-1 Fujimi, Tsurugashima-shi, Saitama 350-2288, Japan
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Yamamoto Kaoru
Corporate R&D Laboratories, Pioneer Corporation, 6-1-1 Fujimi, Tsurugashima-shi, Saitama 350-2288, Japan
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