Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method for transmitting broadcast signal and method for receiving broadcast signal

    公开(公告)号:US10659191B2

    公开(公告)日:2020-05-19

    申请号:US16203141

    申请日:2018-11-28

    Abstract: A method for transmitting a broadcast signal by a broadcast transmitter, the method includes generating service layer signaling information describing characteristics of a broadcast service; generating service list signaling information for listing one or more broadcast services, the service list signaling information including information for obtaining the service layer signaling information, the service list signaling information further including first capability information identifying capabilities needed to decode and present broadcast contents for the one or more broadcast services listed in the service list signaling information, the service list signaling information further including service identifying information identifying the broadcast service, and the service list signaling information further including second capability information identifying capabilities needed to decode and present broadcast contents for the broadcast service identified by the service identifying information; and transmitting the broadcast signal including the service layer signaling information and the service list signaling information.

    Providing an emergency alert service via a mobile broadcasting

    公开(公告)号:US10581540B2

    公开(公告)日:2020-03-03

    申请号:US16216761

    申请日:2018-12-11

    Abstract: A receiver that receives a broadcast signal including service data of a broadcast service and an emergency alert table including an emergency alert message, a first decoder that decodes the service data, a second decoder that decodes the emergency alert table, and a display processor that displays the broadcast service including the decoded service data and emergency alert message in the decoded emergency alert table. The display processor further displays information to notify that an additional content related to the emergency alert message is present, and the display processor further displays the additional content based on a selection of the information by a user. The broadcast signal further includes wake-up information, where a value of the wake-up information is changed from 0 to 1 based on a wake-up call, and the value of the wake-up information is changed from 1 to 2 based on a different wake-up call.

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