QAM Conversion of CATV Multi-Channel Signals by Identical Broadcast Information Using Mixers

• Murotani Junji

  Intellectual Information Engineering, Graduate School of Science and Engineering for Education, Toyama University

• Nakamura Masaaki

  Intellectual Information Engineering, Graduate School of Science and Engineering for Education, Toyama University

• Kuboike Yuki

  Intellectual Information Engineering, Graduate School of Science and Engineering for Education, Toyama University

• Nakamura Takahiro

  Intellectual Information Engineering, Graduate School of Science and Engineering for Education, Toyama University

• Kikushima Koji

  Intellectual Information Engineering, Graduate School of Science and Engineering for Education, Toyama University

Bibliographic Information

Other Title

• ミキサを用いた同一情報信号による複数チャネルの一括QAM変調

Abstract

As far as we know, it is for the first time that the simultaneous QAM conversion of CATV multi-channel signals for the identical broadcast information could be executed by using electrical mixers. The QAM conversion system is assumed to be used for the emergency broadcast and local commercial on CATV multi-channel. The constellation diagrams for 16QAM and 64QAM were successfully obtained by the following experiments.

Journal

• IEEJ Transactions on Electronics, Information and Systems

  IEEJ Transactions on Electronics, Information and Systems 138 (3), 271-272, 2018

  The Institute of Electrical Engineers of Japan

Keywords

• emergency broadcasting
• CATV
• QAM
• mixer

Details

• CRID: 1390001204612166528
• NII Article ID: 130006407369
• DOI: 10.1541/ieejeiss.138.271
• ISSN: 13488155
• ISSN: 03854221
• Web Site: https://www.jstage.jst.go.jp/article/ieejeiss/138/3/138_271/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed