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

• US 10,306,278 B2
• Filed: 04/27/2015
• Issued: 05/28/2019
• Est. Priority Date: 04/27/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kwak, Minsung, Yang, Seungryul, Moon, Kyoungsoo, Ko, Woosuk, Hong, Sungryong
• Primary Examiner(s): Pendleton, Brian T
• Assistant Examiner(s): Saint Cyr, Jean D
• Application Number:
  US15/115,875
• Publication Number:
  US 20170013285A1
• Time in Patent Office: 1,492 Days
• Field of Search: None
• CPC Class Codes: H04N 21/233 Processing of audio elementary streams monitoring, identification or recognition of audio in broadcast systems H04H60/58
• CPC Class Codes: H04N 21/234 Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/23892 involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
• CPC Class Codes: H04N 21/258 Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data arrangements for services using the result on the distributing side of broadcast systems H04H60/66; profiles in network data switching protocols H04L67/30
• CPC Class Codes: H04N 21/26283 for associating distribution time parameters to content, e.g. to generate electronic program guide data
• CPC Class Codes: H04N 21/41 Structure of client; Structure of client peripherals
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/439 Processing of audio elementary streams
• CPC Class Codes: H04N 21/44 Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
• CPC Class Codes: H04N 21/45 Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
• CPC Class Codes: H04N 21/462 Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
• CPC Class Codes: H04N 21/472 End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content end-user interfaces for retrieving video data from a database G06F16/739; network services for supporting unicast streaming H04L65/612
• CPC Class Codes: H04N 21/47211 for requesting pay-per-view content payment schemes payment architectures or payment protocols G06Q20/00, G07F
• CPC Class Codes: H04N 21/4821 using a grid, e.g. sorted out by channel and broadcast time
• CPC Class Codes: H04N 21/4884 for displaying subtitles
• CPC Class Codes: H04N 21/816 involving special video data, e.g 3D video

Abstract

The present invention provides a method for transmitting a broadcast signal. The method for transmitting a broadcast signal according to one embodiment of the present invention comprises: a step for generating service guide information, including access information of a broadcast service, and content data, wherein the service guide information includes a service fragment indicating the information on the broadcast service, a content fragment indicating the information on the content data, and/or a component fragment indicating the information on components included in the broadcast service; a step for encoding the generated service guide information and the content data; and a step for transmitting the encoded service guide information and the content data.

Claims

1. A method of transmitting broadcast signals, the method comprising:

generating service guide information based on service guide fragments which are used to announce information for broadcast signals,

wherein one of the service guide fragments is a service fragment having information about a service of the broadcast signals and one of the service guide fragments is a content fragment having information about a content of the service,

wherein the service fragment includes a service type element indicating a type of the service,

wherein the type of the service corresponds to a linear service or an application based service,

wherein the content fragment includes an extension element having a component element describing components included in the content and a capabilities element indicating capabilities required for decoding and presenting the content,

wherein the component element includes an application component element representing a role of an application component of the content,

wherein the role of the application component indicates that the application component is provided on demand,

wherein the component element includes an audio component element representing a role of an audio component of the content,

wherein the role of the audio component includes music,

wherein the capabilities are specified based on capability codes and capability strings,

wherein the capability strings include capability category information indicating a category of the capabilities, and

wherein the content fragment further includes a service reference element indicating the service fragment to which the content fragment is related;

delivering the service guide fragments over a service guide delivery channel;

encoding the service guide information of the service guide fragments; and

transmitting the broadcast signals including the encoded service guide information,

wherein the broadcast signals include signaling information including first information for rapid channel scans and service acquisition, and

wherein the signaling information further includes second information describing mappings between Data Pipes (DPs) and the service, and information identifying a DP for the second information.

2. The method of claim 1, wherein the components element further includes a video component element indicating a role of a video component of the content, and

wherein the role of the video component represents that a sign language is inset in the video component.

3. The method of claim 1, wherein the role of the audio component further includes that the audio component is for visually or hearing impaired users.

4. The method of claim 1, wherein the components element further includes a closed caption component element indicating a role of a closed caption component of the content, and

wherein the role of the closed caption component indicates that the closed caption component is for easy readers.

5. The method of claim 1, wherein the category of the capabilities includes a download protocol, a forward error correction algorithm, a wrapper or archive format, a compression algorithm and a media type.

6. An apparatus for receiving broadcast signals, the apparatus comprising:

a receiver configured to receive service guide information based on service guide fragments which are used to announce information for broadcast signals,

wherein the broadcast signals include signaling information including first information for rapid channel scans and service acquisition,

wherein the signaling information further includes second information describing mappings between Data Pipes (DPs) and a service, and information identifying a DP for the second information,

wherein the service guide fragments are delivered over a service guide delivery channel,

wherein one of the service guide fragments is a service fragment having information about a service of the broadcast signals and one of the service guide fragments is a content fragment having information about a content of the service,

wherein the service fragment includes a service type element indicating a type of the service,

wherein the type of the service corresponds to a linear service or an application based service,

wherein the content fragment includes an extension element having a components element describing components included in the content and a capabilities element indicating capabilities required for decoding and presenting the content,

wherein the component element includes an application component element representing a role of an application component of the content,

wherein the role of the application component indicates that the application component is provided on demand,

wherein the component element further includes an audio component element representing a role of an audio component of the content,

wherein the capabilities are specified based on capability codes and capability strings,

wherein the capability strings include capability category information indicating a category of the capabilities, and

wherein the content fragment further includes a service reference element indicating the service fragment to which the content fragment is related;

a decoder configured to decode the service guide information of the service guide fragments; and

a display unit to display the service guide information,

wherein when the role of the audio component includes music, the display unit displays that the audio component for the music is presentable.

7. The apparatus of claim 6, wherein the components element further includes a video component element indicating a role of a video component of the content, and

wherein the role of the video component indicates that a sign language is inset in the video component.

8. The apparatus of claim 6, wherein the role of the audio component further includes that the audio component is for visually or hearing impaired users.

9. The apparatus of claim 6, wherein the components element further includes a closed caption component element indicating a role of a closed caption component of the content, and

wherein the role of the closed caption component indicates that the closed caption component is for easy readers.

10. The apparatus of claim 6, wherein the category of the capabilities includes a download protocol, a forward error correction algorithm, a wrapper or archive format, a compression algorithm and a media type.

11. An apparatus of transmitting broadcast signals, the apparatus comprising:

a generator configured to generate service guide information based on service guide fragments which are used to announce information for broadcast signals,

wherein one of the service guide fragments is a service fragment having information about a service of the broadcast signals and one of the service guide fragments is a content fragment having information about a content of the service,

wherein the service fragment includes a service type element indicating a type of the service,

wherein the type of the service corresponds to a linear service or an application based service,

wherein the content fragment includes an extension element having a component element describing components included in the content and a capabilities element indicating capabilities required for decoding and presenting the content,

wherein the component element includes an application component element representing a role of an application component of the content,

wherein the role of the application component indicates that the application component is provided on demand,

wherein the component element includes an audio component element representing a role of an audio component of the content,

wherein the role of the audio component includes music,

wherein the capabilities are specified based on capability codes and capability strings,

wherein the capability strings include capability category information indicating a category of the capabilities,

wherein the content fragment further includes a service reference element indicating the service fragment to which the content fragment is related, and

wherein the service guide fragments are delivered over a service guide delivery channel;

an encoder configured to encode the service guide information of the service guide fragments; and

a transmitter configured to transmit the broadcast signals including the encoded service guide information,

wherein the broadcast signals include signaling information including first information for rapid channel scans and service acquisition, and

wherein the signaling information further includes second information describing mappings between Data Pipes (DPs) and the service, and information identifying a DP for the second information.

12. The apparatus of claim 11, wherein the components element further includes a video component element indicating a role of a video component of the content, and

wherein the role of the video component indicates that a sign language is inset in the video component.

13. A method of receiving broadcast signals, the method comprising:

receiving service guide information based on service guide fragments which are used to announce information for broadcast signals,

wherein the broadcast signals include signaling information including first information for rapid channel scans and service acquisition,

wherein the signaling information further includes second information describing mappings between Data Pipes (DPs) and a service, and information identifying a DP for the second information,

wherein the service guide fragments are delivered over a service guide delivery channel,

wherein one of the service guide fragments is a service fragment having information about a service of the broadcast signals and one of the service guide fragments is a content fragment having information about a content of the service,

wherein the service fragment includes a service type element indicating a type of the service,

wherein the type of the service corresponds to a linear service or an application based service,

wherein the content fragment includes an extension element having a component element describing components included in the content and a capabilities element indicating capabilities required for decoding and presenting the content,

wherein the component element includes an application component element representing a role of an application component of the content,

wherein the role of the application component indicates that the application component is provided on demand,

wherein the component element further includes an audio component element representing a role of an audio component of the content,

wherein the capabilities are specified based on capability codes and capability strings,

wherein the capability strings include capability category information indicating a category of the capabilities, and

wherein the content fragment further includes a service reference element indicating the service fragment to which the content fragment is related;

decoding the service guide information of the service guide fragments; and

displaying the service guide information by a display unit,

wherein when the role of the audio component includes music, the display unit displays that the audio component for the music is presentable.

14. The method of claim 13, wherein the components element further includes a video component element indicating a role of a video component of the content, and

wherein the role of the video component indicates that a sign language is inset in the video component.