Activity of Disseminating Japanese EWBS Technology

Date: May 13, 2020
Author Names:
  • Yasuji Sakaguchi | DiBEG (Digital Broadcasting Experts Group) | Tokyo, Japan
  • Yasuo Takahashi | DiBEG (Digital Broadcasting Experts Group) | Tokyo, Japan
  • Seiji Sakuma | DiBEG (Digital Broadcasting Experts Group) | Tokyo, Japan

Abstract: The Japanese digital terrestrial broadcasting system (ISDB-T) is adopted by 14 countries in Latin America. DiBEG extends technical support and cooperation to help the implementation of ISDB-T in those countries. EWBS (Emergency Warning Broadcast System) is one of the particular features of ISDB-T and expected to be introduced as a national communication system in case of emergency. The “EWBS Superimpose Dissemination System”, improved from the Japanese original version by adapting to local requirements in Latin America, has successfully been developed in Japan. Taking advantage of the robustness of the ISDB-T “One-seg” technology, making maximum use of the existing broadcasting network, this system realizes simple utilization and wide coverage with outstanding reliability. This system has already been introduced to some Latin American countries and highly evaluated. Japan continues technical cooperation so that EWBS can contribute to disaster prevention and mitigation in these ISDB-T adopting countries.

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