H04N21/64315

Convergence sublayer for use in a wireless broadcasting system

A method of encapsulating data and a single frequency network configured to perform the method are disclosed. A content stream of data packets is received, and the data packets in the content stream are formatted in accordance with a first protocol. Information identifying a container size established for the content stream is received. The data packets formatted in accordance with the first protocol are fragmented and packed to form data units formatted in accordance with a second protocol, and the data units are sized based on the container size. The data units formatted in accordance with the second protocol are encapsulated to form second protocol data packets. The second protocol data packets are provided to a transmitter that is synchronized to one or more transmitters in a single frequency network so that each transmitter in the single frequency network broadcasts a same signal that includes the second protocol data packets.

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

A method for transmitting a broadcast signal in a digital transmitter, includes generating, by a processor, service data of a broadcast service and service signaling information for signaling the service data, the service data including first service components delivered on a Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP) session or second service components delivered on a Real-Time Object Delivery over Unidirectional Transport (ROUTE) session; generating, by the processor, a service list table including bootstrap information and protocol information for a type of delivery protocol of the service signaling information, wherein the protocol information for the type of delivery protocol of the service signaling information relates to the MMTP or the ROUTE; generating, by the processor, a broadcast signal including the service signaling information, the service list table, and the first or second service components; and transmitting, by a broadcasting antenna, the generated broadcast signal.

Method and apparatus to enable fast channel switching with limited DVB receiver memory

An apparatus and method for channel switching comprising encapsulating a plurality of IP datagrams associated with a plurality of real time audio/visual (A/V) streams or a plurality of file objects onto a plurality of MPE sections; inserting the plurality of MPE sections into one of a plurality of elementary streams; and multiplexing the plurality of elementary streams associated with the plurality of real time A/V streams or the plurality of file objects into a plurality of non-consecutive bursts, wherein the plurality of elementary streams are adjacent in a channel line-up. In one aspect, the plurality of non-consecutive bursts is transmitted to a DVB-H receiver with a limited memory size for enabling fast channel switching. In one aspect, the channel line-up is presented in an electronic service guide (ESG).

Demapping apparatus and method for reception of data in a multi-carrier broadcast system

An apparatus and a corresponding method for mapping payload data of mapping input data streams onto a mapping output data stream having a channel bandwidth for transmission in a multi-carrier broadcast system includes first and second frame forming mechanisms. The first frame forming mechanism is adapted to form first frames having a first frame structure and the second frame forming mechanism is adapted to form second frames having a second frame structure. Preferably, in a second frame structure the data blocks of a particular mapping input data stream are spread in time and frequency over various data symbols and various data segments of the second frames to provide high robustness against disturbances. The payload portion of the second frame is preferably segmented into various data segments enabling use of a narrow-band receiver, even if both the first and second frames cover the same total channel bandwidth.

Dynamic advertisement stream replacement

Mechanisms are provided for replacing default advertisement streams in a media stream with replacement advertisement streams. User profile information is obtained for a particular user and/or device. A default advertisement stream is identified and replaced with advertisement streams selected using the user profile information. Timestamp information and sequence number information is maintained to allow uninterrupted delivery of the modified media stream while customizing media streams for particular users.

SYSTEM AND METHOD FOR AN IMPROVED, SELECTIVE DOWNLOAD OF BROADCAST DATA
20200359105 · 2020-11-12 ·

The invention relates to a system and method for improved, selective download of broadcast data. In particular the present invention relates to downloading of broadcast data effectively when disturbances occur during reception of an input signal comprising a data carousel. The invention introduces multiplication of content filters that are configured to download only a part of the data. An important feature is recognition when to reset content filters in order to resolve an issue. For the purposes of this invention, there is defined a linear address space. The important properties of this address space allow for consistent addressing without gaps and every address is greater by a single position with respect to the previous one. The address space starts with one address and ends with another one. Such chunk address space may be considered as predictable, because a synchronization can be caught by reading an address of currently broadcast section.

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

A method for transmitting a broadcast signal, includes generating, by a processor, service data of a broadcast service and service signaling information for signaling the service data, the service data including first service components delivered on a Movie Picture Experts Group (MPEG) Media Transport Protocol (MMTP) session or second service components delivered on a Real-Time Object Delivery over Unidirectional Transport (ROUTE) session, generating, by the processor, a service list table including bootstrap information and protocol information for a type of delivery protocol of the service signaling information, wherein the bootstrap information changes based on the protocol information, generating, by the processor, a broadcast signal including the service signaling information, the service list table, the first or second service component, and transmitting, by a broadcasting antenna, the generated broadcast signal.

APPARATUS FOR TRANSMITTING BROADCAST SIGNAL, APPARATUS FOR RECEIVING BROADCAST SIGNAL, METHOD FOR TRANSMITTING BROADCAST SIGNAL AND METHOD FOR RECEIVING BROADCAST SIGNAL

A method for transmitting a broadcast signal in a digital transmitter, includes generating, by a processor, service data of a broadcast service and service signaling information for signaling the service data, the service data including first service components delivered on a Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP) session or second service components delivered on a Real-Time Object Delivery over Unidirectional Transport (ROUTE) session; generating, by the processor, a service list table including bootstrap information and protocol information for a type of delivery protocol of the service signaling information, wherein the protocol information for the type of delivery protocol of the service signaling information relates to the MMTP or the ROUTE; generating, by the processor, a broadcast signal including the service signaling information, the service list table, and the first or second service components; and transmitting, by a broadcasting antenna, the generated broadcast signal.

METHOD AND DEVICE FOR GENERATING A TRANSPORT STREAM, BROADCAST METHOD AND SITE, AND COMPUTER PROGRAM THEREFOR
20200280379 · 2020-09-03 ·

A method for generating a transport stream intended to be distributed to a plurality of broadcast sites. The method includes: modulating a source signal, delivering a modulated signal; sampling the modulated signal, delivering a stream of complex samples; and framing the stream of complex samples, delivering the transport stream, wherein the framing includes: dividing the stream of complex samples into frames; inserting, in each frame, time information associated with the group of successive complex samples making up the frame for the time synchronization of the broadcasting sites.

APPARATUS FOR TRANSMITTING BROADCAST SIGNAL, APPARATUS FOR RECEIVING BROADCAST SIGNAL, METHOD FOR TRANSMITTING BROADCAST SIGNAL AND METHOD FOR RECEIVING BROADCAST SIGNAL

A method for processing a broadcast signal, includes generating one or more link layer packets carrying broadcast data, first signaling information, and second signaling information, the first signaling information including information for one or more broadcast services and one or more components belonging to each service, the second signaling information including information for listing the one or more broadcast services; generating one or more signaling link layer packets carrying third signaling information that includes physical layer pipe (PLP) identifying information for identifying a PLP that corresponds to information signaled in the third signaling information, wherein a header of each signaling link layer packet including header type information indicating that the signaling link layer packet carries the third signaling information; and encapsulating one or more signaling link layer packets and the one or more link layer packets.