ITE Technical Report
Online ISSN : 2433-0914
Print ISSN : 0386-4227
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Volume 17, Issue 65
Displaying 1-12 of 12 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    1993 Volume 17 Issue 65 Pages Cover1-
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_Cover1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    1993 Volume 17 Issue 65 Pages Toc1-
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_Toc1
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  • Hi-Vision live broadcast system for the helicopter
    Hiroyuki TANAKA, Hiroki FUJIO, Shouichi NISHIMURA, Tetsuomi IKEDA
    Article type: Article
    1993 Volume 17 Issue 65 Pages 1-6
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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    This paper descrives the system for Hi-Vision digital transmission using a helicopter. In this system. Hi-Vision baseband signals are digitally compressed to 60Mbps. Then, It is modulated to 16QAM method and transmitted in the SHF 18 MHz bandwidth. By mounting this system onto a helicopter, live transmission of Hi-Vision aerial shots are possible. This system was used on the broadcasting of the royal wedding parade.
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  • A Study on Suitability between Telecine Images and EDTV-II
    Masahiro KAGEYAMA, Takahiko FUKINUKI, Hiroshi YOSHIGI
    Article type: Article
    1993 Volume 17 Issue 65 Pages 7-11
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_7
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    This paper describes characteristics of "telecine images" from the standpoint of introduction of EDTV-II, and proposes ID signals for the images. In case of the images, many problems concerned with top and bottom bars and insufficiency of progressive-scanned cameras can be solved, because interlaced-scanned signals can be completely converted into progressive-scanned signals without using vertical-temporal (VT) helper signals.
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  • EDTV System Based on Field Difference Technique
    S. YASUKI, K. SATOH, Y. TAKAHASHI, H. ITOH, T. KAISE, Y. OGAWA, K. KAW ...
    Article type: Article
    1993 Volume 17 Issue 65 Pages 13-18
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_13
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    A newly developed EDTV system is presented. Wide aspect TV signals are decomposed into temporal high and low components. These components are separately encoded to letterbox format. The temporal high components are multiplexed in upper and lower portion of letterbox form signal to reproduce high quality progressive scan signal at a decoder. This system can encode both progressive and interlace scan signal using temporal fitering technique We also developed interference reduction techniques for existing TV receivers.
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  • Experimental Hardware of Letter-Box EDTV with multiplexed LD (Vertical-Temporal Helper)/VH(Vertical Helper) Signals
    Kazuo Ishikura, Norihiro Suzuki, Hiroshi Yoshigi
    Article type: Article
    1993 Volume 17 Issue 65 Pages 19-24
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_19
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    This paper describes experimental hardware of letter-box EDTV. In this system, LD (vertical-temporal helper) signal with 360lph dynamic vertical resolution and VT (vertical helper) signal with 480lph Static vertical resolution are multiplexed on different spaces in vertical-temporal frequancy domain, and transmitted in the top and bottom panel, Hence, the multiplexed Signals can be separated perfectly on EDTV receivers.
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  • THE Vertical-Temporal Helper Signals of EDTV-II
    Keiichi SAJI, Masayuki ISHIDA
    Article type: Article
    1993 Volume 17 Issue 65 Pages 25-30
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_25
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    The Broadcast Technology Association (BTA) has been deliberating on the target of 1995 for the implementation of the second-generation EDTV (EDTV-II), a major purpose of which is wide-aspect terrestrial broadcasting. Over the last five years,the NIPPON Television NETWORK corporation (NTV) which is the first commercial television station in Japan has been conducting experiments with prototype hardware and contributing to the discussion on EDTV-II as a member of BTA. HERE, I report about vertical enhanceme nt technology for provisional format based on this hardware.
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  • Multiplexing Scheme of Helper Signals in Bars on EDTV-II
    Norihiro Suzuki, Takahiko Fukinuki, Masahiro Kageyama, Kazuo Ishikura, ...
    Article type: Article
    1993 Volume 17 Issue 65 Pages 31-36
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_31
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    This paper proposes a multiplexing scheme of VT (Vertical-Temporal) and VH (Vertical High) helper signals on EDTV-II. In the scheme, both signals are multiplexed on different spaces in vertical-temporal frequency domain, thus they can be separated perfectly on EDTV-II receivers. The multiplexed signals are modulated horizontally by fsc (color sub-carrier), and any synchronization error does not take place on receivers. Subjective assessment tests clarified that the proposed scheme is most appropriate from a viewpoint of impairment to current receivers.
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  • Interference reducing method for EDTV-II
    Kenichiro Hayashi, Yasuhiko Ogawa, Tadahiro Yoshida, Kouji Handa, Yosh ...
    Article type: Article
    1993 Volume 17 Issue 65 Pages 37-41
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_37
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    Interference reducing method for EDTV-II is described. This method uses the correlation between the main signal transmitted on the main panel and the VT (Vertical-Temporal high frequency) signal transmitted on the upper and lower panels. In this paper we applied this method to LD (Line Difference) signal generated by SSKF (Symmetric Short Kernel Filter). We confirmed the effect of this method and made the encoder and the decoder which realized this method.
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  • A Study on Signalling System in EDTV-II
    Takahiko FUKINUKI, Shiro MATSUZAKI
    Article type: Article
    1993 Volume 17 Issue 65 Pages 43-48
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_43
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    The signalling system for EDTV-II, which is now under study in BTA, is reviewed. It has three functions, i.e., (1) command function to indicate the status of video signals, (2) reference function to send the level and phase information of enhancement signals, and (3) discrimination function to discriminate the signalling signal from the existing video signals. The third contains the most time-consuming and knotty problems.
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  • Report on ITU/BR Workshop on Enhanced Television
    TAKAO SHIMIZU
    Article type: Article
    1993 Volume 17 Issue 65 Pages 49-52
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_49
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    An ITU Workshop took place from 3-5 October 1993 in Auckland. New Zealand. In brief, two wide-screen enhanced systems are being developed in the world: EDTV II and PAL plus. Both systems are letterbox format with a vertical helper signal to increase vertical resolution. However, whilst PAL plus uses colour plus to improve cross-colour and cross-luminance, and a vertical higher resolusion helper, EDTV II uses an horizontal enhancement system by spectrum folding, and a vertical higher resolusion helper and a vertical/temporal helper.
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  • [title in Japanese]
    Article type: Appendix
    1993 Volume 17 Issue 65 Pages App1-
    Published: October 28, 1993
    Released on J-STAGE: October 06, 2017
    DOIhttps://doi.org/10.11485/tvtr.17.65_App1
    RESEARCH REPORT / TECHNICAL REPORT FREE ACCESS
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