METHOD FOR RECEIVING A BROADCAST SIGNAL AND BROADCAST RECEIVER

• US 20120174176A1
• Filed: 03/14/2012
• Published: 07/05/2012
• Est. Priority Date: 12/09/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: SUH, Jong Yeul, THOMAS, Gomer, SONG, Jae Hyung, KIM, Jin Pil, HONG, Ho Taek, LEE, Joon Hui
• Granted Patent: US 9,485,448 B2
• Time in Patent Office: Days
• US Class Current: 725/110
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4349 by extracting from data carousels, e.g. extraction of software modules from a DVB carousel
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/6125 involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/812 involving advertisement data advertising per se G06Q30/02

Abstract

A method of receiving a broadcast signal including a Non-Real-Time (NRT) service and a broadcast receiver are disclosed herein. A method of receiving a broadcast signal including an NRT service, the method comprises receiving a broadcast signal including first signaling information and second signaling information, identifying the NRT service based on the first signaling information, parsing the second signaling information to identify an Internet Protocol (IP) address of an NRT service signaling channel, receiving the NRT service signaling channel by accessing the IP address, and downloading a desired NRT service based on the NRT service signaling channel.

Claims

1-13. -13. (canceled)

14. A method of receiving a broadcast signal for a Non-Real-Time (NRT) service, the method comprising:

receiving a broadcast signal including first signaling information and second signaling information for the NRT service through a Service Signaling Channel (SSC) with a specific IP address and port number, the NRT service which is delivered in advance of its use and stored in a receiving device;

identifying the NRT service based on the first signaling information;

acquiring an IP address of an NRT service data based on the second signaling information; and

downloading a desired NRT service based on the acquired IP address of the NRT service data, wherein;

the NRT service is delivered within IP packets forming an IP subnet, the IP subnet associated with a virtual channel are identified by references in a Virtual Channel Table (VCT) and an associated Program Map Table (PMT),

the IP packets are carried in MPEG-2 Transport Stream using Digital Storage Media Command and Control (DSM-CC) Addressable Section format, and

the PMT includes information indicating that the SSC is contained in a program element included in the IP subnet.

15. The method of claim 14, wherein the first signaling information is a service_type field identifying the NRT service.

16. The method of claim 15, wherein the first signaling information and second signaling information for the NRT service through the SSC is included in a Service Map Table (SMT), the SMT containing service-level attributes for the NRT service.

17. The method of claim 16, wherein the broadcast signal further includes an NRT Information Table (NRT-IT) describing one or more content items available for download to storage in the receiving device for signaling NRT service.

18. The method of claim 17, wherein the content item is composed of one or more files being delivered via a File Delivery over Unidirectional Transport (FLUTE) file delivery session,

wherein the NRT-IT includes linkage information for linking from the content item to one or more files, the linkage information having an identifier of the content item, the identifier of the content item being used to map one or more files to the content item with a content identifier included in a FLUTE File Description Table (FDT) instance for the non-real time service.

19. A broadcast receiver for receiving a broadcast signal including a Non-Real Time (NRT) service, the broadcast receiver comprising:

a baseband processor for receiving a broadcast signal including first signaling information and second signaling information for the NRT service through a Service Signaling Channel (SSC) with a specific IP address and port number, the NRT service which is delivered in advance of its use and stored in a receiving device;

a Service Manager for identifying the NRT service based on the first signaling information and acquiring an Internet Protocol (IP) address of an NRT service data based on the second signaling information; and

an NRT service manager for downloading a desired NRT service based on the acquired IP address of the NRT service data, wherein;

the NRT service is delivered within IP packets forming an IP subnet, the IP subnet associated with a virtual channel are identified by references in a Virtual Channel Table (VCT) and an associated Program Map Table (PMT),

the IP packets are carried in MPEG-2 Transport Stream using Digital Storage Media Command and Control (DSM-CC) Addressable Section format, and

the PMT includes information indicating that the SSC is contained in a program element included in the IP subnet.

20. The broadcast receiver of claim 19, wherein the first signaling information is a service_type field identifying the NRT service.

21. The broadcast receiver of claim 20, wherein the first signaling information and second information for the NRT service through the SSC is included in a Service Map Table (SMT), the SMT containing service-level attributes for the NRT service.

22. The method of claim 21, wherein the broadcast signal further includes an NRT Information Table (NRT-IT) describing one or more content items available for download to storage in the receiving device for signaling NRT service.

23. The method of claim 22, wherein the content item is composed of one or more files being delivered via a File Delivery over Unidirectional Transport (FLUTE) file delivery session,

wherein the NRT-IT includes linkage information for linking from the content item to one or more files, the linkage information having an identifier of the content item, the identifier of the content item being used to map one or more files to the content item with a content identifier included in a FLUTE File Description Table (FDT) instance for the non-real time service.