New High Speed File Format for High Definition Television Optical Disks
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概要
- 論文の詳細を見る
Optical disk systems have advantages over video cassette recorders for broadcasting because they provide excellent random access, reliability and archiving performance. However, the transfer data rates of optical disks are inadequate for use in broadcasting applications. An optical disk medium, a servo system and signal processing techniques were developed for a 200 Mbps read/write system with two optical heads that was aimed at application to high definition television (HDTV) news gathering. We also developed an original disk format (ODF) that features a new high speed file format which has two new characteristics for HDTV. One is a guaranteed minimum extent length and the other is separation of the recording areas for files and directories. Our high-speed optical disk emulator proved that ODF is requiered to achieve a consecutive data transfer rate of more than 200 Mbps per head.
- 2004-07-15
著者
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Koide Daiichi
Science & Technical Research Laboratories Nhk (japan Broadcasting Corporation)
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Tokumaru Haruki
Science & Technical Research Laboratories Nhk (japan Broadcasting Corporation)
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Koide Daiichi
Science & Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
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Ishikawa Kiyohiko
Science & Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
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Kishida Masahiko
Science & Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
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Nakamura Shoich
Science & Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
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Nakamura Shoich
Science & Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
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Kishida Masahiko
Science & Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
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Tokumaru Haruki
Science & Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
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Ishikawa Kiyohiko
Science & Technical Research Laboratories, NHK (Japan Broadcasting Corporation), 1-10-11 Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
関連論文
- High-Speed Tracking Servo Using Zero Phase Error Tracking-Feed-Forward Method for Professional-Use Optical Disks over 10000 rpm
- High-Speed Tracking Control System for Broadcast-Use Optical Disk Drive
- High-Speed Flexible Optical Disk for Broadcast Archival Storage
- Experimental Analysis of Axial Run-Out in Flexible Optical Disks
- Perfect Tracking Control System with Prediction State Observer for Next-Generation Optical Disks
- Improvement of Aerodynamic Stability in Flexible Optical Disk System with Cylindrically Concaved Stabilizer
- High-Speed Recording up to 15,000 rpm Using Thin Optical Disks
- High Speed Flexible Optical Disk with Cylindrically Concaved Stabilizer
- Reducing Axial Run-Out in a Flexible Optical Disk by Restricting Airflow to the Aerodynamic Stabilizer
- Error Prediction Robust Tracking Control System Suppressing Harmonics Disturbance for Optical Disk Recording System
- Relaxation Mechanism of Electrochromism of Tungsten-Oxide Film for Ultra-Multilayer Optical Recording Depending on Sputtering Conditions
- New High Speed File Format for High Definition Television Optical Disks
- High-Speed and Precise Gap Servo System for Near-Field Optical Recording
- High Precision Tracking Control based on Pseudo-Inverse Feedforward Control System for Next-Generation Optical Disks