A server system comprises one or more hardware processors; memory storing computer instructions executable by the one or more hardware processors, the computer instructions when executed by the one or more hardware processors causing the server system to perform: receiving TS files of an HLS data stream; receiving VTT files containing VTT closed caption segments; converting the VTT closed caption segments to 608/708 closed captions based on the CTA 608/708 specification; generating CC-enriched TS files using the TS files and the 608/708 closed captions; encoding SCTE markers into the CC-enriched TS files to generate SCTE/CC-enriched TS files; converting the SCTE/CC-enriched TS files to a real-time broadcast stream; and preparing the real-time broadcast stream for transmission to a consumer system.

The present invention provides a method of transmitting a broadcast signal. The method of transmitting a broadcast signal according to the present invention provides a system capable of supporting future broadcast services in environments supporting next-generation hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, efficient signaling methods capable of covering both terrestrial broadcast networks and the Internet in environments supporting future hybrid broadcast are provided.

The present invention provides a method of transmitting a broadcast signal. The method of transmitting a broadcast signal according to the present invention provides a system capable of supporting future broadcast services in environments supporting next-generation hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, efficient signaling methods capable of covering both terrestrial broadcast networks and the Internet in environments supporting future hybrid broadcast are provided.

A configuration by which application control in which an application control message is applied can be executed with certainty is implemented.

A transmission apparatus transmits event notification data in which an application control message (ACM) is stored as event data to a reception apparatus. An application controlling unit of the reception apparatus executes application control based on the ACM stored as event data in the event notification message. The event notification data is stored in an MPD that is signaling data or in a segment that is data for transmission of an AV content, and the reception apparatus can acquire the ACM from the MPD or the segment and perform rapid application control.

A configuration by which application control in which an application control message is applied can be executed with certainty is implemented.

A transmission apparatus transmits event notification data in which an application control message (ACM) is stored as event data to a reception apparatus. An application controlling unit of the reception apparatus executes application control based on the ACM stored as event data in the event notification message. The event notification data is stored in an MPD that is signaling data or in a segment that is data for transmission of an AV content, and the reception apparatus can acquire the ACM from the MPD or the segment and perform rapid application control.

According to embodiments of the present invention, a receiver obtains service location information which defines current and next sources from which a data stream can be obtained, and a switching time at which the source of the data stream will be switched from the current source to the next source. Before the switching time, the receiver receives the data stream from the current source, and after the switching time, the receiver receives the data stream from the next source. The next source can be defined in initial service location information, or in updated service location information obtained later. An apparatus and method for providing the service location information are also disclosed. In some embodiments, a broadcast provider and/or the receiver can execute a method to compensate for an IP delay experienced by the receiver.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.

An apparatus and method is disclosed to receive location data identifying the current location of a vehicle. A database, storing radio device records, is then queried. Each radio device record in the database identifies a radio device (e.g., a transmitter, receiver, transceiver, transponders, etc.) and a location of the radio device using a suitable coordinate system. Radio device records associated with radio devices likely to be within communication range of the vehicle may then be retrieved from the database. These radio device records may be used to generate a radio device list that may be presented to an occupant of the vehicle.