Method for receiving a broadcast signal and broadcast receiver

• US 8,272,022 B2
• Filed: 11/18/2009
• Issued: 09/18/2012
• Est. Priority Date: 11/18/2008
• 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
• Primary Examiner(s): Saltarelli, Dominic D
• Assistant Examiner(s): Chung, Jason J
• Application Number:
  US12/591,416
• Publication Number:
  US 20100162307A1
• Time in Patent Office: 1,035 Days
• Field of Search: None
• US Class Current: 725/109
• CPC Class Codes: H04H 20/93 which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
• CPC Class Codes: H04H 60/27 Arrangements for recording or accumulating broadcast information or broadcast-related information
• CPC Class Codes: H04H 60/40 for identifying broadcast time
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• 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 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• 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 21/482 End-user interface for program selection broadcast systems using EPGs H04H60/72
• CPC Class Codes: H04N 21/6175 involving transmission via Internet broadcast-related systems characterised by the transmission system being the Internet H04H60/82
• CPC Class Codes: H04N 21/64322 IP
• 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
• CPC Class Codes: H04N 21/845 Structuring of content, e.g. decomposing content into time segments
• CPC Class Codes: H04N 21/85406 involving a specific file format, e.g. MP4 format

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, method comprises receiving a broadcast signal including first signaling information and second signaling information, identifying the NRT service based on the first signaling information, identifying an Internet Protocol (IP) address of an NRT service signaling data based on the first signaling information and the second signaling information, receiving the NRT service signaling data by accessing the IP address, and downloading a desired NRT service based on the NRT service signaling data.

Claims

1. A method of transmitting a non-real time (NRT) service, the method comprising:

generating NRT content items/files for the NRT service, the NRT content item/files being encapsulated based on a File Delivery over Unidirectional Transport (FLUTE) method and an Asynchronous Layered Coding/Layered Coding Transport (ALC/LCT) method;

generating an NRT content table, the NRT content table containing information describing content items available for download to storage in a receiving device, and an NRT service table, the NRT service table containing service-level attributes for the non-real time service;

generating an internet protocol (IP) datagram comprising the NRT content items/files, the NRT content table and the NRT service table, the IP datagram being encapsulated based on an User Datagram Protocol/Internet Protocol (UDP/IP) method;

generating an MPEG-2 transport stream (TS) which carries the IP datagram;

modulating the MPEG-2 TS using a Vestigial Side Band (VSB) method; and

transmitting a broadcast signal containing the modulated MPEG-2 TS through a broadcast channel,

wherein the NRT content items/files are delivered in advance of its use and stored in a receiving device,

wherein the NRT content table includes first information linking between the NRT content table and the NRT service table, and second information identifying the content items and being used to map one or more files carried on the FLUTE file delivery session for the non-real time service to content items,

wherein the NRT service table includes third information identifying the non-real time service, the NRT service table being linked to the NRT content table through the third information of the NRT service table,

wherein the NRT service table further includes fourth information indicating that a category of a service is a non-real time service.

2. The method of claim 1, wherein the NRT content table and the NRT service table are transmitted via a service signaling channel (SSC) with a specific IP address and UDP port number.

3. The method of claim 1, wherein the second information is unique within a single content item for the non-real time service.

4. An apparatus of receiving a non-real time (NRT) service, the apparatus comprising:

a tuner configured to receive a broadcast signal which carries an MPEG-2 transport stream (TS) through a broadcast channel, wherein the MPEG-2 TS includes an internet protocol (IP) datagram which carry non-real time content items/files for the non-real time service, an NRT content table, the NRT content table containing information describing content items available for download to storage in a receiving device, and an NRT service table containing service-level attributes for the non-real time service;

a demodulator configured to demodulate the MPEG-2 TS from the broadcast signal;

a processor configured to parse the non-real time content items/files, NRT content table and the NRT service table; and

a storage configured to store the non-real time content items/files,

wherein the non-real time content items/files are delivered in advance of its use and stored in a receiving device,

wherein the non-real time content items/files, the NRT content table and the NRT service table are encapsulated based on an User Datagram Protocol/Internet Protocol (UDP/IP) method,

wherein the non-real time content items/files is further encapsulated based on a File Delivery over Unidirectional Transport (FLUTE) method and an Asynchronous Layered Coding/Layered Coding Transport (ALC/LCT) method, and

wherein the processor parses first information linking between the NRT content table and the NRT service table, second information identifying the content items and being used to map one or more files carried on the FLUTE file delivery session for the non-real time service to content items from the NRT content table, third information identifying the non-real time service from the NRT service table, the NRT service table being linked to the NRT content table through the third information of the NRT service table, and fourth information indicating that a category of a service is a non-real time service from the NRT service table.

5. The apparatus of claim 4, wherein the processor acquires the NRT content table and the NRT service table being transmitted via a service signaling channel (SSC) with a specific IP address and UDP port number.

6. The apparatus of claim 4, wherein the second information is unique within a single content item for the non-real time service.