Broadcast signal transmitting/receiving device and method

    公开(公告)号:US11178438B2

    公开(公告)日:2021-11-16

    申请号:US16995415

    申请日:2020-08-17

    Abstract: Disclosed is a broadcast signal transmitting method. The broadcast signal transmitting method according to an embodiment of the present invention may comprise: generating low level signaling, LLS, information; encapsulating the LLS information into an IP packet; and generating a signal frame by physical layer processing the LLS information. The LLS information may comprise comprises LLS ID information identifying a type of the LLS information and the type of the LLS information may comprise at least one of EA information providing information related to emergency alert and screen clear information providing information related to screen clear.

    Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method for transmitting broadcast signal and method for receiving broadcast signal

    公开(公告)号:US10887242B2

    公开(公告)日:2021-01-05

    申请号:US16781347

    申请日:2020-02-04

    Abstract: A method for transmitting a broadcast signal in a digital transmitter includes processing a link layer packet. In addition, the link layer packet includes a header and a payload, the header includes a base header, the base header includes packet type information for representing a first packet type, and segmentation concatenation information for representing that the payload carries a segment of a single input packet or multiple input packets, when the packet type information is used to represent a packet type extension, the header further includes an additional header for type extension, the additional header for type extension includes extended type information for representing a second packet type being different from a compressed IP (internet protocol) packet, an IPv4 packet or an MPEG (Moving Picture Experts Group)-2 transport stream, and when the payload carries the multiple input packets, the header further includes an additional header for concatenation, the additional header for concatenation includes count information for representing a number of the multiple input packets included in the link layer packet, and a value of the count information is set to a number of the multiple input packets included in the link layer packet subtracted by two; and transmitting the broadcast signal.

    Method and device for transmitting/receiving broadcast signal

    公开(公告)号:US10674233B2

    公开(公告)日:2020-06-02

    申请号:US16585091

    申请日:2019-09-27

    Abstract: A broadcast signal transmission processing apparatus, includes a header compression processor that generates a first packet including first header information in a uncompressed form and second packets including second header information in a compressed form by performing header compression on Internet protocol (IP) packets containing broadcast data, a header information extracting processor that extracts the first header information from the first packet and converts the first packet from which the first header information is extracted to a third packet including third header information in a compressed form, a signaling data generating processor that generates signaling packets containing information related to the header compression and mapping information between the IP packets and at least one data pipe for the IP packets, and a broadcast signal transmitting processor that transmits a broadcast signal including multiple data pipes that include at least one data pipe.

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