Abstract Extended of Novel Method for broadcasting Multiples Emergency Alert and Alarm Using ISDB-T Digital Terrestrial Television

In the Digital Terrestrial Television System ISDB-T (Integrated Services Digital Broadcasting Terrestrial), it is specified how to send emergency information by the Emergency Descriptor EWBS (Emergency Warning Broadcast System) of Table PMT (Program Map Table); The emergency information is restricted to 1 bit with status of (activation/No -activation) and the area code that determines the geographic location where the alert or alarm will be activated. The present paper proposes a novel method to send information of alerts and emergency alarms contemplating multiple events and complementary information, this is achieved by proposing a data protocol that will be responsible for bringing complementary information to the existing one. A new table is defined within the Transport Stream MPEG with a data structure that allows sending this additional information to indicate new types of emergencies.