Method for receiving a broadcast signal and broadcast receiver

• US 8,161,513 B2
• Filed: 12/09/2009
• Issued: 04/17/2012
• 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
• Primary Examiner(s): SALCE, JASON P
• Application Number:
  US12/654,079
• Publication Number:
  US 20100162308A1
• Time in Patent Office: 860 Days
• Field of Search: 725/9, 725/17, 725/20, 725/25, 725/28, 725/32, 725/35, 725 67- 68, 725 70- 71, 725/93, 725/116, 725/146, 370/312, 370/432, 709/217, 709/227, 709/229, 348/731, 348/426.1, 348/384.1
• US Class Current: 725/71
• 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. A method of receiving a broadcast signal including a Non-Real-Time (NRT) service, the method comprising:

receiving a broadcast signal including first signaling information and second signaling information, wherein the second signaling information includes an NRT_IP_address_list_descriptor which identifies the IP address of an NRT Service Data or NRT Service Signaling Channel;

identifying the NRT service based on the first signaling information;

parsing the second signaling information to identify the 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.

2. The method of claim 1, wherein the first signaling information is a Terrestrial Virtual Channel Table (TVCT) and the second signaling information is a Program Map Table (PMT).

3. The method of claim 1, wherein a service_type field of the first signaling information identifies the NRT service.

4. The method of claim 1, wherein an elementary_PID transmitted to the associated second signaling information identifies a well-known IP address for NRT service signaling channel.

5. The method of claim 1, wherein a Non-Real-Time Service Table (NST) and a Non-Real-Time Content Table (NCT) is received through the NRT service signaling channel.

6. The method of claim 5, wherein the desired NRT service is identified_through the NST and NCT.

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

a broadband processor for receiving a broadcast signal including first signaling information and second signaling information, wherein the second signaling information includes an NRT_IP_address_list_descriptor which identifies the IP address of an NRT Service Data or NRT Service Signaling Channel;

a Program Specific Information/Program and System Information Protocol (PSI/PSIP) section parser for identifying the NRT service based on the first signaling information and parsing the second signaling information;

a Service Manager for identifying the Internet Protocol (IP) address of an NRT service signaling channel from the parsed second signaling information; and

an NRT service manager for downloading a desired NRT service based on the NRT service signaling channel.

8. The broadcast receiver of claim 7, wherein the first signaling information is a Terrestrial Virtual Channel Table (TVCT) and the second signaling information is a Program Map Table (PMT).

9. The broadcast receiver of claim 7, wherein the PSI/PSIP section parser identifies the NRT service through a service_type field of the first signaling information.

10. The broadcast receiver of claim 7, wherein the Service Manager receives an NRT Service Table (NST) and an NRT Content Table (NCT) through the NRT service signaling channel.

11. The broadcast receiver of claim 10, wherein the NRT service manager identifies a desired NRT service through the NST and NCT.