Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method of transmitting broadcast signals and method of receiving broadcast signals

• US 10,412,443 B2
• Filed: 12/12/2017
• Issued: 09/10/2019
• Est. Priority Date: 03/01/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Seungryul, Kwak, Minsung, Moon, Kyoungsoo, Ko, Woosuk, Hong, Sungryong, Lee, Jangwon
• Primary Examiner(s): Kumar, Pankaj
• Assistant Examiner(s): Tilahun, Alazar
• Application Number:
  US15/838,914
• Publication Number:
  US 20180103286A1
• Time in Patent Office: 637 Days
• CPC Class Codes: H04H 20/18 Arrangements for synchronising broadcast or distribution via plural systems
• CPC Class Codes: H04H 20/42 Arrangements for resource management
• CPC Class Codes: H04H 20/93 which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
• CPC Class Codes: H04H 60/72 using electronic programme guides [EPG] focusing on identifying broadcast space time H04H60/39 ; menu type display of EPG in television receivers H04N21/47
• CPC Class Codes: H04H 60/82 the transmission system being the Internet
• CPC Class Codes: H04N 21/4112 having fewer capabilities than the client, e.g. thin client having less processing power or no tuning capabilities
• CPC Class Codes: H04N 21/434 Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream demultiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4348 Demultiplexing of additional data and video streams
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/8166 involving executable data, e.g. software arrangements for executing specific programs G06F9/44; broadcasting computer programmes in broadcast systems H04H20/91; involving the movement of software or configuration parameters H04L67/34
• CPC Class Codes: H04N 21/8586 by using a URL processing chained hypermedia data for information retrieval G06F16/94; information retrieval from the Internet by using URLs G06F16/955; URL in broadcast information H04H20/93; Web-based protocols H04L67/02

Abstract

A method of providing a broadcast service, the method includes generating service data for a broadcast service and Service Layer Signaling (SLS) for signaling the broadcast service; generating a signaling table having information used for indicating a transport session carrying the SLS for the broadcast service; and transmitting the service data, the SLS and the signaling table via a broadcast network, wherein the SLS includes a Service-based Transport Session Instance Description (S-TSID) and a Media Presentation Description (MPD), wherein the S-TSID includes information for indicating transport sessions carrying service components and content items for the broadcast service, the MPD includes a period element having an event stream element, the event stream element includes a plurality of event elements, and each of the event elements includes an event ID for an event and timing information for indicating start time of the event.

Claims

1. A method of providing a broadcast service, the method comprising:

processing service data for a broadcast service, Service layer Signaling (SLS) for signaling the broadcast service, and a signaling table having bootstrap information for discovery of the SLS for the broadcast service to output a broadcast signal, wherein the broadcast service is a linear service with an app-based enhancement or an app-based service; and

transmitting the broadcast signal carrying the service data, the SLS and the signaling table via a broadcast network,

wherein the SLS includes a Service-based Transport Session Instance Description (S-TSID), a Media Presentation Description (MPD), and application-related data, and

wherein;

the S-TSID includes information for indicating transport sessions carrying service components for the broadcast service,

the application-related data of one or more applications is associated with the broadcast service, and

the MPD includes a period element having an event stream element that indicates actions to be taken by the one or more applications, the event stream element including a plurality of event elements, and each of the event elements including an event ID for an event and timing information for indicating start time of the event.

2. The method of claim 1, wherein the SLS further includes an application table including information for indicating content items used by an application.

3. The method of claim 1, wherein the service components include a segment having an event element, the event element including an event ID for an event and timing information for indicating start time of the event.

4. The method of claim 3, wherein the MPD further includes information for indicating a presence of the event element in the segment.

5. An apparatus for providing a broadcast service, the apparatus comprising:

a processor configured to process service data for a broadcast service, Service Layer Signaling (SLS) for signaling the broadcast service, and a signaling table having bootstrap information for discovery of the SLS for the broadcast service to output a broadcast signal, wherein the broadcast service is a linear service with an app-based enhancement or an app-based service; and

a tuner configured to transmit the broadcast signal carrying the service data, the SLS and the signaling table via a broadcast network,

wherein the SLS includes a Service-based Transport Session Instance Description (S-TSID), a Media Presentation Description (MPD), and application-related data, and

wherein;

the S-TSID includes information for indicating transport sessions carrying service components for the broadcast service,

the application-related data of one or more applications is associated with the broadcast service, and

the MPD includes a period element having an event stream element that indicates actions to be taken by the one or more applications, the event stream element including a plurality of event elements, and each of the event elements including an event ID for an event and timing information for indicating start time of the event.

6. The apparatus of claim 5, wherein the SLS further includes an application table including information for indicating content items used by an application.

7. The apparatus of claim 5, wherein the service components include a segment having an event element, the event element including an event ID for an event and timing information for indicating start time of the event.

8. The apparatus of claim 7, wherein the MPD further includes information for indicating a presence of the event element in the segment.

9. A method of providing a broadcast service, the method comprising:

receiving a broadcast signal including service data, Service Layer Signaling (SLS), and a signaling table for the broadcast service, that is a linear service with an app-based enhancement or an app-based service, via a broadcast network;

processing the received broadcast signal to obtain the signaling table that includes bootstrap information for discovery of the SLS for the broadcast service;

obtaining the SLS, that includes a Service-based Transport Session Instance Description (S-TSID), a Media Presentation Description (MPD), and application-related data of one or more applications, from the received broadcast signal based on the signaling table,

wherein;

the S-TSID includes information for indicating transport sessions carrying service components for the broadcast service,

the application-related data of one or more applications is associated with the broadcast service, and

the MPD includes a period element having an event stream element that indicates actions to be taken by the one or more applications, the event stream element including a plurality of event elements, and each of the event elements including an event ID for an event and timing information for indicating start time of the event; and

providing the service data based on the SLS and the one or more applications,

wherein a user input signal for controlling operation of the one or more applications is received so that the operation of the one or more applications is further controlled.

10. The method of claim 9, wherein the SLS further includes an application table including information for indicating content items used by an application.

11. The method of claim 9, further comprising:

synchronizing the operation of the one or more applications with the service data.

12. The method of claim 11, further comprising:

providing a notification of the operation of the one or more applications.

13. An apparatus of providing a broadcast service, the apparatus comprising:

a tuner configured to receive a broadcast signal including service data, Service Layer Signaling (SLS), and a signaling table for the broadcast service, that is a linear service with an app-based enhancement or an app-based service, via a broadcast network;

a processor configured to process the received broadcast signal to obtain the signaling table that includes bootstrap information for discovery of the SLS for the broadcast service, and to obtain the SLS, that includes a Service-based Transport Session Instance Description (S-TSID), and application-related data of one or more applications, from the received broadcast signal based on the signaling table,

wherein;

the S-TSID includes information for indicating transport sessions carrying service components for the broadcast service,

the application-related data of one or more applications is associated with the broadcast service; and

a display configured to provide the service data of the broadcast service based on the SLS and the one or more applications,

wherein the apparatus receives a user input signal for controlling operation of the one or more applications so that the processor further controls the operation of the one or more applications.

14. The apparatus of claim 13, wherein the SLS further includes an application table including information for indicating content items used by an application.

15. The apparatus of claim 13, wherein the processor further synchronizes the operation of the one or more applications with the service data.

16. The apparatus of claim 13, wherein the display further provides a notification of the operation of the one or more applications.