Receiving device, receiving method, transmission device, and transmission method

A receiving method of a receiving device, comprising:

• receiving, by a receiver of the receiving device, video data and audio data;
• acquiring, by circuitry of the receiving device, trigger information embedded in at least one of the video data or the audio data, the trigger information including:
• type information indicating that the trigger information corresponds to function information including one of service signaling information, emergency alerting information, electronic service guide information, viewing history information, or application control information, and
• location information indicating a location of an external server corresponding to the function information;
• accessing, by the circuitry of the receiving device, the external server based on the location information;
• and
• acquiring, by the circuitry of the receiving device, from the external server:
• the service signaling information if the type information indicates that the function information corresponds to the service signaling information,
• the emergency alerting information if the type information indicates that the function information corresponds to the emergency alerting information,
• the electronic service guide information if the type information indicates that the function information corresponds to the electronic service guide information,
• the viewing history information if the type information indicates that the function information corresponds to the viewing history information, or
• the application control information if the type information indicates that the function information corresponds to the application control information.

A non-transitory computer-readable medium storing instructions which when executed by a computer cause the computer to perform a method, and the method comprising:

• receiving video data and audio data;
• acquiring trigger information embedded in at least one of the video data or the audio data, the trigger information including:
• type information indicating that the trigger information corresponds to function information including one of service signaling information, emergency alerting information, electronic service guide information, viewing history information, or application control information, and
• location information indicating a location of an external server corresponding to the function information;
• accessing the external server based on the location information;
• and
• acquiring from the external server:
• the service signaling information if the type information indicates that the function information corresponds to the service signaling information,
• the emergency alerting information if the type information indicates that the function information corresponds to the emergency alerting information,
• the electronic service guide information if the type information indicates that the function information corresponds to the electronic service guide information,
• the viewing history information if the type information indicates that the function information corresponds to the viewing history information, or
• the application control information if the type information indicates that the function information corresponds to the application control information.