Abstract:
The present invention proposes 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 next-generation broadcast services in an environment supporting next-generation hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, an efficient signaling method for covering terrestrial broadcast networks and the Internet in an environment supporting next-generation hybrid broadcast is proposed.
Abstract:
A broadcast signal transmission method according to one embodiment of the present disclosure comprises an IP layer processing step of generating Internet protocol (IP) packets including broadcast data and generating fragmented IP packets by fragmenting at least one IP packet of the IP packets in order to transmit to a link layer, a first link layer processing step of restoring the at least one IP packet by combining the fragmented IP packets of the IP packets output at the IP layer processing step, a second link layer processing step of performing header compression of IP packet including the restored at least one IP packet, and a third link layer processing step of encapsulating the header compressed IP packets into at least one link layer packet and transmitting the at least one link layer packet to a physical layer.
Abstract:
The present invention relates to a device and a method for transmitting and receiving a multicast. The multicast transmitting device, according to one embodiment of the present invention, comprises: a receiving unit for receiving media data; a packetizing unit for packetizing the received media data into media data packets by using a transmission protocol; and a transmitting unit for multicasting the media data packets, wherein the media data packets generated by the transmission protocol respectively include a packet header and a payload, and the packet header can include information on a fast startup.
Abstract:
The present invention relates to a signal transmission and reception apparatus and a signal transmission and reception method. An embodiment of the present invention provides a signal transmission method comprising: a step (S110) of encoding video data; a step (S120) of encoding a file format including the encoded video data, wherein the file format includes pre-filtering information for trick play; and a step (S130) of transmitting data including the encoded file format. According to an embodiment of the present invention, it is possible to provide trick play for an encoded stream more efficiently.
Abstract:
A broadcast reception device is provided. The broadcast reception device includes a communication interface unit receiving, from a CAM, a first data unit including a request for diagnostic information for representing a status of the broadcast reception device; and a control unit generating a second data unit including a reply to the first data unit to transmit the second data unit to the CAM through the communication interface unit, wherein the second data unit includes information representing that the broadcast reception device does not implement displaying of a diagnostic information related screen.
Abstract:
A method for processing media data according to embodiments may comprise the steps of: receiving service list provision information; transmitting region selection information on the basis of the service list provision information; and receiving media data on the basis of the region selection information.
Abstract:
Disclosed herein is receiving method of transmitting a multicast signal. The method may performing selectively header compression on an IP (Internet Protocol) stream made up of IP packets including multicast service data for a multicast service, generating first signaling information including information related to the header compression when the header compression is performed on the IP stream, generating second signaling information including information related to the multicast service, and transmitting the IP stream on which the header compression is selectively performed, the first signaling information, and the second signaling information.
Abstract:
Disclosed herein is an apparatus for receiving a multicast signal. The apparatus may include a multicast gateway configured to receive a multicast signal based on an interface from a multicast server, and a content playback configured to display a multicast service in the multicast signal. Disclosed herein is a method of receiving a multicast signal. The method may include receiving a multicast signal based on an interface from a multicast server, and displaying a multicast service in the multicast signal.
Abstract:
A broadcast signal reception apparatus according to embodiments of the present invention comprises: a tuner for receiving a broadcast signal, wherein the broadcast signal includes a first content received through a first network and a second content received through a second network, the first content and the second content are allocated to a first channel, and the first content has a resolution different from that of the second content; a signaling parser for parsing signaling information included in the broadcast signal, wherein the signaling information includes linkage information between the first content and the second content; a controller for controlling the first content and the second content on the basis of the signaling information; and a decoder for decoding at least one of the first content or the second content.
Abstract:
The present invention proposes 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 next-generation broadcast services in an environment supporting next-generation hybrid broadcast using terrestrial broadcast networks and the Internet. In addition, an efficient signaling method for covering terrestrial broadcast networks and the Internet in an environment supporting next-generation hybrid broadcast is proposed.