BROADCAST SIGNAL TRANSMISSION DEVICE, BROADCAST SIGNAL RECEPTION DEVICE, BROADCAST SIGNAL TRANSMISION METHOD, AND BROADCAST SIGNAL RECEPTION METHOD

• US 20170048294A1
• Filed: 11/20/2015
• Published: 02/16/2017
• Est. Priority Date: 11/20/2014
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kwak, Minsung, MOON, Kyoungsoo, LEE, Jangwon, KO, Woosuk, HONG, Sungryong
• Granted Patent: US 10,742,705 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04H 20/93 which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4516 involving client characteristics, e.g. Set-Top-Box type, software version or amount of memory available
• CPC Class Codes: H04N 21/6112 involving terrestrial transmission, e.g. DVB-T
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73

Abstract

A method for generating and processing a broadcast signal according to an embodiment of the present invention includes encoding broadcast data for one or more broadcast services, encoding first level signaling information including information describing properties of the one or more broadcast services, encoding second level signaling information including information for scanning the one or more broadcast services and generating a broadcast signal including the broadcast data, the first level signaling information and the second level signaling information, wherein the first level signaling information includes user service description (USD) information describing service layer properties with respect to the broadcast services, wherein the USD information includes capability information specifying capabilities necessary to present broadcast content of the broadcast services.

Claims

1. A method for generating and processing a broadcast signal, comprising:

encoding broadcast data for one or more broadcast services;

encoding first level signaling information including information describing properties of the one or more broadcast services;

encoding second level signaling information including information for scanning the one or more broadcast services; and

generating a broadcast signal including the broadcast data, the first level signaling information and the second level signaling information,

wherein the first level signaling information includes user service description (USD) information describing service layer properties with respect to the broadcast services,

wherein the USD information includes capability information specifying capabilities necessary to present broadcast content of the broadcast services.

2. The method according to claim 1, wherein the USD information further includes essential flag information indicating whether the capability information corresponds to essential capability information about capabilities essentially necessary to render the broadcast services or the broadcast content or normal capability information about capabilities necessary to process a specific element included in the broadcast services or the broadcast content although not essential to render the broadcast services or the broadcast content.

3. The method according to claim 1, wherein the USD information further includes physical layer pipe (PLP) identification information for identifying a PLP through which transport session description information providing information for acquiring a component included in the broadcast services is transmitted.

4. The method according to claim 1, wherein the second level signaling information includes minimum capability information specifying minimum capabilities of a receiver, necessary to decode the one or more broadcast services.

5. The method according to claim 1, wherein the first level signaling information includes media presentation description (MPD) information providing transport session description information for acquiring a component included in the broadcast services and information necessary to stream the broadcast services.

6. The method according to claim 5, wherein the USD information further includes MPD uniform resource identifier (URI) information indicating a URI specifying a location to which the MPD information is provided.

7. The method according to claim 6, wherein the USD information further includes URI information indicating a URI specifying a location to which the transport session description information is provided.

8. A broadcast signal receiver, comprising:

a broadcast signal reception unit for receiving a broadcast signal including broadcast data for one or more broadcast services, first level signaling information including information describing properties of the one or more broadcast services and encoding second level signaling information including information for scanning the one or more broadcast services; and

a processor for controlling the broadcast signal receiver to present the broadcast services by acquiring the broadcast services using the second level signaling information and the first level signaling information,

wherein the first level signaling information includes USD information describing service layer properties with respect to the broadcast services,

wherein the USD information includes capability information specifying capabilities necessary to present broadcast content of the broadcast services.

9. The broadcast signal receiver according to claim 8, wherein the USD information further includes essential flag information indicating whether the capability information corresponds to essential capability information about capabilities essentially necessary to render the broadcast services or the broadcast content or normal capability information about capability necessary to process a specific element included in the broadcast services or the broadcast content although not essential to render the broadcast services or the broadcast content.

10. The broadcast signal receiver according to claim 9, wherein the USD information further includes PLP identification information for identifying a PLP through which transport session description information providing information for acquiring a component included in the broadcast services is transmitted.

11. The broadcast signal receiver according to claim 8, wherein the second level signaling information includes minimum capability information specifying minimum capabilities of a receiver, necessary to decode the one or more broadcast services.

12. The broadcast signal receiver according to claim 8, wherein the first level signaling information includes MPD information providing transport session description information providing information for acquiring a component included in the broadcast services and information necessary to stream the broadcast services.

13. The broadcast signal receiver according to claim 12, wherein the USD information further includes MPD URI information indicating a URI specifying a location to which the MPD information is provided.

14. The broadcast signal receiver according to claim 13, wherein the USD information further includes URI information indicating a URI specifying a location to which the transport session description information is provided.