Receiving apparatus, transmitting apparatus, and data processing method

A data processing method for a receiving apparatus, comprising the steps of:

• the receiving apparatus receiving a digital broadcast signal;
• the receiving apparatus performing a demodulating process on the signal supplied from the receiver;
• and
• the receiving apparatus (i) determining whether signaling data stored in a payload of at least one IP packet of the digital broadcast signal is updated, and (ii) when the signaling data is updated, performing a process with respect to an emergency information application for presenting detailed information of emergency information on the basis of control information that is included in the signaling data and that includes information about the detailed information of the emergency information which needs to be announced urgently,
• wherein the control information includes information indicating a degree of priority of an emergency information as a numerical value, the degree of priority is lowest for the numerical value 0.

A transmitting apparatus comprising:

• a generator that generates control information including information about detailed information of emergency information which needs to be announced urgently, the control information being used in a process with respect to an emergency information application for presenting the detailed information of the emergency information;
• and
• a transmitter that transmits the generated control information as included in a digital broadcast signal,
• wherein the control information is included in signaling data stored in a payload of at least one IP packet of the digital broadcast signal,
• wherein an update to the signaling data causes the process to be performed in a receiving apparatus that receives the digital broadcast signal, and
• wherein the control information includes information indicating a degree of priority of an emergency information as a numerical value, the degree of priority is lowest for the numerical value 0.

A data processing method for a transmitting apparatus, comprising the steps of:

• the transmitting apparatus generating control information including information about detailed information of emergency information which needs to be announced urgently, the control information being used in a process with respect to an emergency information application for presenting the detailed information of the emergency information;
• and
• the transmitting apparatus transmitting the generated control information as included in a digital broadcast signal,
• wherein the control information is included in signaling data stored in a payload of at least one IP packet of the digital broadcast signal,
• wherein an update to the signaling data causes the process to be performed in a receiving apparatus that receives the digital broadcast signal, and
• wherein the control information includes information indicating a degree of priority of an emergency information as a numerical value, the degree of priority is lowest for the numerical value 0.