Abstract:
Disclosed herein is a method of operating an apparatus for providing a cell broadcast service. The operating method includes receiving, by a transmission device of a broadcaster, a cell broadcast service signal containing an emergency alert from a mobile carrier; converting, by the transmission device, the cell broadcast service signal into a public warning broadcast signal; and transmitting, by the transmission device, the public warning broadcast signal to a mobile switching center or a base station.
Abstract:
Provided is a system and method for transmitting and receiving 3D video based on digital broadcasting. The system includes: an encoder for generating 2D ES and 3D supplementary ES by encoding 2D video and 3D supplementary data; a packetizer for generating 2D video PES and 3D supplementary PES by packetizing the 2D video ES and the 3D supplementary ES; a PSI generator for generating a PSI; a TS generator for generating 2D video TS and 3D supplementary TS for the 2D video PES and the 3D supplementary PES; a multiplexer for multiplexing the transport streams to transmit the 2D video TS as a normal stream and transmit the 3D supplementary TS, the PSI TS and 3D video synch data TS as robust stream; and a modulator for modulating the multiplexed TS according to a DTV specification and transmitting the modulated TS.
Abstract:
Disclosed herein are an apparatus and method for converting a broadcast signal. The apparatus for converting a broadcast signal includes a demultiplexer unit for receiving a terrestrial broadcast signal and generating a terrestrial signaling signal, a signaling conversion unit for converting the terrestrial signaling signal into a cable signaling signal by parsing the terrestrial signaling signal, a cable multiplexer unit for generating a cable broadcast signal by multiplexing the cable signaling signal, and a cable modulation unit for modulating the cable broadcast signal and transmitting the cable broadcast signal over a cable network.
Abstract:
Disclosed herein is an apparatus and method for providing a broadcast service. The apparatus for providing a broadcast service includes a segment and metadata creation unit for creating a media segment file and profile information for a broadcast streaming service, a transfer processing unit for performing packetization and configuring a transport session in order to transfer audio/video and data objects, which correspond to the media segment file, and a broadcast transmission unit for formatting a media stream, received from the transfer processing unit, according to a broadcast signal format by multiplexing the media stream based on a layer, for creating a broadcast transmission frame that includes signaling information, and for transmitting the broadcast transmission frame via a broadcast network.
Abstract:
Disclosed herein are an apparatus and method for detecting a broadcast signal. The apparatus includes a bootstrap detection unit for detecting whether a bootstrap signal is included in a received broadcast signal based on a preset first bootstrap window and a machine-learning method, a bootstrap offset estimation unit for searching the broadcast signal for the start point of the bootstrap signal using a preset second bootstrap window, estimating a bootstrap offset based on the machine-learning method, and estimating bootstrap symbols from the bootstrap offset, and a demodulation unit for demodulating information included in the broadcast signal from the bootstrap symbols based on the machine-learning method.
Abstract:
Disclosed are a dynamic multi-mode service (MMS) transmission apparatus, a dynamic MMS reception apparatus, and a method for providing a dynamic MMS. The method includes generating, by the dynamic MMS transmission apparatus, signaling information including information about linkage between service channels based on broadcast schedule information about a broadcast service; transmitting, by the dynamic MMS transmission apparatus, the signaling information and the broadcast service to the dynamic MMS reception apparatus through at least one of a broadcast network and a broadband network; receiving, by the dynamic MMS reception apparatus, the signaling information and the broadcast service; interpreting, by the dynamic MMS reception apparatus, the information about the linkage between service channels, included in the signaling information, by decoding the signaling information; and providing, by the dynamic MMS reception apparatus, the broadcast service by performing dynamic channel switching based on the information about the linkage between service channels.