BROADCAST SIGNAL TRANSMISSION APPARATUS, BROADCAST SIGNAL RECEIVING APPARATUS, BROADCAST SIGNAL TRANSMISSION METHOD, AND BROADCAST SIGNAL RECEIVING METHOD

    公开(公告)号:US20210258092A1

    公开(公告)日:2021-08-19

    申请号:US17245893

    申请日:2021-04-30

    Abstract: A method for providing a service based on hybrid networks including a broadcast network and a broadband network in a digital transmitter, includes generating multiple service components of the service and service layer signaling (SLS) information for the service; generating data for providing bootstrap information that allows a receiver to discover the SLS information for the service; transmitting a first signal comprising a first service component among the multiple service components, the SLS information and the data via the broadcast network, wherein the first service component is carried via a first Layered Coding Transport (LCT) channel included in a Real-time Object delivery over Unidirectional Transport (ROUTE) session, wherein the bootstrap information included in the data is used to represent a second LCT channel that carries the SLS information; and transmitting a second signal comprising a second service component among the multiple service components via the broadband network.

    BROADCASTING SIGNAL TRANSMITTING APPARATUS, BROADCASTING SIGNAL RECEIVING APPARATUS, BROADCASTING SIGNAL TRANSMITTING METHOD, AND BROADCASTING SIGNAL RECEIVING METHOD

    公开(公告)号:US20210143927A1

    公开(公告)日:2021-05-13

    申请号:US17155948

    申请日:2021-01-22

    Abstract: A method for processing a broadcast service at a Primary Device (PD), and which includes performing a discovery process with a Companion Device (CD) application in a CD by receiving a discovery request from the CD and providing an endpoint for a WebSocket server of the PD; establishing a connection between the WebSocket server and the CD application based on the endpoint; in response to receiving a query for a current service from the CD, transmitting a response for the current service to the CD application based on the connection; receiving a broadcast signal having signaling information including flag information to obtain emergency data in the broadcast signal; and time de-interleaving Forward Error Correction (FEC) blocks including the emergency data based on a Time Interleaving (TI) block, wherein the FEC blocks are de-interleaved based on position for one or more virtual FEC blocks and the FEC blocks. In addition, the signaling information further includes information for a maximum number for the FEC blocks. The method also includes transmitting a notification message including the emergency data to the CD.

    BROADCASTING SIGNAL TRANSMISSION DEVICE, BROADCASTING SIGNAL RECEPTION DEVICE, BROADCASTING SIGNAL TRANSMISSION METHOD, AND BROADCASTING SIGNAL RECEPTION METHOD

    公开(公告)号:US20210126954A1

    公开(公告)日:2021-04-29

    申请号:US17140359

    申请日:2021-01-04

    Abstract: A method of processing a broadcast signal in a broadcast receiver includes receiving the broadcast signal including service data of a service, first signaling information for fast channel scans and service acquisition, and second signaling information providing information for discovery and acquisition of the service data. Further, the first signaling information includes bootstrap information for the second signaling information, identification information for identifying the service, category information for indicating a category of the service and capability information specifying a capability required to decode the service data. In addition, the second signaling information is carried in a Layered Coding Transport (LCT) channel that is identified by a Transport Session Identifier (TSI), and the bootstrap information includes address and port information for access of the second signaling information. The method also includes acquiring the service data based on at least the first signaling information or the second signaling information; and decoding the service data.

    APPARATUS AND METHOD FOR SENDING AND RECEIVING BROADCAST SIGNALS

    公开(公告)号:US20200336347A1

    公开(公告)日:2020-10-22

    申请号:US16917105

    申请日:2020-06-30

    Abstract: A device for processing a broadcast signal, includes a tuner configured to receive the broadcast signal carrying a bootstrap prefixed to the beginning of a signal frame, the bootstrap including one or more bootstrap symbols, a last bootstrap symbol immediately followed by a preamble of the signal frame including bootstrap termination information, the bootstrap including first information for representing a structure of the preamble; a demodulator configured to demodulate the broadcast signal; a de-framer configured to de-frame the signal frame in the broadcast signal to output the preamble and PLP data, the preamble carrying Layer 1 (L1) signaling data for the signal frame; a signaling decoder configured to decode the L1 signaling data; and a decoder to decode the PLP data based on the L1 signaling data.

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