ITE Technical Report
Online ISSN : 2433-0914
Print ISSN : 0386-4227
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Volume 20, Issue 52
Displaying 1-7 of 7 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    1996 Volume 20 Issue 52 Pages Cover1-
    Published: October 04, 1996
    Released on J-STAGE: October 13, 2017
    DOIhttps://doi.org/10.11485/tvtr.20.52_Cover1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    1996 Volume 20 Issue 52 Pages Toc1-
    Published: October 04, 1996
    Released on J-STAGE: October 13, 2017
    DOIhttps://doi.org/10.11485/tvtr.20.52_Toc1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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  • Direction of high density recording technology on the Phase-change optical disk
    Takeo Ohta, Tetsuya Akiyama, Kenichi Nagata, Eiji Ohno
    Article type: Article
    1996 Volume 20 Issue 52 Pages 1-8
    Published: October 04, 1996
    Released on J-STAGE: October 13, 2017
    DOIhttps://doi.org/10.11485/tvtr.20.52_1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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    The reflectivity difference between the amorphous mark state and the crystalline state of the Phase-change optical disk produces playback signal as those of pit marks of CD-ROM or DVD-ROM disks. Applying thin disk substrate (0.6mm), Land/Groove recording and PWM recording technology increases the density to 2.6Gbit/in^2. The wavelength dependency of the optical constant of the Phase-change material films (GeTe-Sb_2Te_3-Sb) shows large response characteristics to blue laser wave length (λ=430nm). More than 10 times extension of the areal recording density is expected on the Phase-change optical disk as 7Gbit/in^2 to 10Gbit/in^2) by using blue laser in the future.
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  • VIDEO DISK RECORDER SYSTEM USING MAGNETO-OPTICAL DISK
    Noboru Mamiya, Seiji Murata, Kenji Asano, Yoshihisa Suzuki, Seiichirou ...
    Article type: Article
    1996 Volume 20 Issue 52 Pages 9-16
    Published: October 04, 1996
    Released on J-STAGE: October 13, 2017
    DOIhttps://doi.org/10.11485/tvtr.20.52_9
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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    We have developed a video disk recorder system using a magnetically induced super resolution (MSR) magneto-optical (MO) disk and archived a user data capacity of 4.1 Gbytes per disk by using land/groove recording technology. The system can record about 125 minutes of moving picture encoded by MPEG2 method.
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  • A study of High density Disk Format and Playback System for Optical VDR
    Tetsuya YAMAMOTO, Shuichi NAKANISHI, Masaru NAKAMURA, Satoshi ITOI
    Article type: Article
    1996 Volume 20 Issue 52 Pages 17-23
    Published: October 04, 1996
    Released on J-STAGE: October 13, 2017
    DOIhttps://doi.org/10.11485/tvtr.20.52_17
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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    Optical Video Disk Recorder that can record a compressed video signal and 2ch non-compressed audio signals into optical disk for 40 miniutes has been developed. The 12cm diameter PCR disk has 10.4GB storage capacity for both sides. The new disk format "SCALLER" that has dual playback mode CLV and CAV has been reported. High density recording and multiple-port playback are realized by the circuit that is designed on the SCALLER format.
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  • A development of 25Mbps Video Codec for Portable Optical VDR
    Naoto YAMAMOTO, Daisuke SATO, Junichi OHKI, Shoji YACHIDA, Katsuya OSH ...
    Article type: Article
    1996 Volume 20 Issue 52 Pages 25-32
    Published: October 04, 1996
    Released on J-STAGE: October 13, 2017
    DOIhttps://doi.org/10.11485/tvtr.20.52_25
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    A component digital video codec which can record a compressed video signal and 2-ch non-compressed audio signals for 40 minutes into optical disk has been developed. The disk has 12cm diameter and 10.4GB storage capacity for both sides. The codec uses adaptive DCT and variable length coder, and compresses video signal at 216Mbps to 25Mbps by a rate control unit. It has simple circuit complexity, and can control encoded bit amounts accurately using DCT activities and VLC buffer statistics.
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  • [title in Japanese]
    Article type: Appendix
    1996 Volume 20 Issue 52 Pages App1-
    Published: October 04, 1996
    Released on J-STAGE: October 13, 2017
    DOIhttps://doi.org/10.11485/tvtr.20.52_App1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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