Digital broadcasting system and method of processing data in digital broadcasting system

• US 10,044,453 B2
• Filed: 05/01/2017
• Issued: 08/07/2018
• Est. Priority Date: 08/24/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Song, Young Hun, Choi, In Hwan, Lee, Chul Soo, Song, Jae Hyung, Lee, Sang Hyup
• Primary Examiner(s): Peng, Fred
• Application Number:
  US15/583,871
• Publication Number:
  US 20170237509A1
• Time in Patent Office: 463 Days
• CPC Class Codes: H04H 20/28 Arrangements for simultaneous broadcast of plural pieces of information
• CPC Class Codes: H04H 20/33 by plural channels
• 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 1/0047 Decoding adapted to other signal detection operation in conjunction with sequence estimation or equalization H04L25/03286
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04N 21/2343 involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements video transcoding H04N19/40; media packet handling at the source H04L65/762
• 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 21/26241 involving the time of distribution, e.g. the best time of the day for inserting an advertisement or airing a children program
• CPC Class Codes: H04N 21/414 Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
• 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 21/435 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 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/64322 : IP
• CPC Class Codes: H04N 21/8586 : by using a URL processing chained hypermedia data for information retrieval G06F16/94; information retrieval from the Internet by using URLs G06F16/955; URL in broadcast information H04H20/93; Web-based protocols H04L67/02
• CPC Class Codes: H04N 5/50 : Tuning indicators; Automatic tuning control

Abstract

A digital broadcast receiver and a control method thereof are provided. The digital broadcast receiver includes a reception unit for receiving a broadcast signal in which mobile service data and main service data are multiplexed, an extractor for extracting transmission parameter channel signaling information and fast information channel signaling information from a data group in the received mobile service data, an acquirer for acquiring a program table describing virtual channel information and a service of an ensemble by using the extracted fast information channel signaling information, the ensemble being a virtual channel group of the received mobile service data, a detector for detecting a descriptor defining Internet access information corresponding to the mobile service data by using the acquired program table, and a controller for controlling the Internet access information of the detected descriptor and the mobile service data to be displayed.

Claims

1. A method of processing data in a receiving system, the method comprising:

receiving a broadcast signal including data units, each of the data units divided into a first region and a second region, the first region including first signaling data and the second region including at least broadcast data for a service and second signaling data,

wherein the first signaling data include information related to the data unit,

wherein the second signaling data include identification information for identifying the service, status information for indicating whether the service is hidden, and information related to third signaling data describing the service,

wherein the third signaling data include component information of the service, and

wherein access information for accessing the second signaling data is predefined;

demodulating the received broadcast signal;

decoding the first signaling data in the data units of the demodulated broadcast signal;

performing error correction decoding on the at least broadcast data for a service and second signaling data in the data units of the demodulated broadcast signal based on the decoded first signaling data;

accessing the second signaling data from the error correction decoded data based on the predefined access information; and

accessing the broadcast data from the error correction decoded data based on the accessed second signaling data.

2. The method of claim 1, wherein the component information includes resource identification information for at least one component of the service.

3. The method of claim 1, wherein:

the error correction decoded data are included in data packets;

each of the data packets includes a header followed by a payload including at least the broadcast data or the second signaling data; and

the header includes information for indicating a type of data included in the payload.

4. The method of claim 1, wherein:

the second signaling data further include system time information; and

the system time information includes offset information between UTC and a time zone of a broadcast station and information related to daylight saving time.

5. The method of claim 1, wherein:

the second signaling data are carried in an internet protocol (IP) datagram; and

the access information includes a well-known IP address and a well-known user datagram protocol (UDP) port number.

6. A receiving system for processing data, the receiving system comprising:

a tuner to receive a broadcast signal including data units, each of the data units divided into a first region and a second region, the first region including first signaling data and the second region including at least broadcast data for a service and second signaling data,

wherein the first signaling data include information related to the data unit,

wherein the second signaling data include identification information for identifying the service, status information for indicating whether the service is hidden, and information related to third signaling data describing the service,

wherein the third signaling data include component information of the service, and

wherein access information for accessing the second signaling data is predefined;

a demodulator to demodulate the received broadcast signal;

a first decoder to decode the first signaling data in the data units of the demodulated broadcast signal;

a second decoder to perform error correction decoding on the at least broadcast data for a service and second signaling data in the data units of the demodulated broadcast signal based on the decoded first signaling data; and

a handler to access the second signaling data from the error correction decoded data based on the predefined access information and to access the broadcast data from the error correction decoded data based on the accessed second signaling data.

7. The receiving system of claim 6, wherein the component information includes resource identification information for at least one component of the service.

8. The receiving system of claim 6, wherein:

the error correction decoded data are included in data packets;

each of the data packets includes a header followed by a payload including at least the broadcast data or the second signaling data; and

the header includes information for indicating a type of data included in the payload.

9. The receiving system of claim 6, wherein:

the second signaling data further include system time information; and

the system time information includes offset information between UTC and a time zone of a broadcast station and information related to daylight saving time.

10. The receiving system of claim 6, wherein:

the second signaling data are carried in an internet protocol (IP) datagram; and

the access information includes a well-known IP address and a well-known user datagram protocol (UDP) port number.