CA2696721A1 - Digital broadcasting system and method of processing data in digital broadcasting system - Google Patents

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

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Publication number
CA2696721A1
CA2696721A1 CA2696721A CA2696721A CA2696721A1 CA 2696721 A1 CA2696721 A1 CA 2696721A1 CA 2696721 A CA2696721 A CA 2696721A CA 2696721 A CA2696721 A CA 2696721A CA 2696721 A1 CA2696721 A1 CA 2696721A1
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CA
Canada
Prior art keywords
service data
mobile service
sdp
information
channel setting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2696721A
Other languages
French (fr)
Other versions
CA2696721C (en
Inventor
Jae Hyung Song
In Hwan Choi
Jong Yeul Suh
Jin Pil Kim
Choon Lee
Chul Soo Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
Lg Electronics Inc.
Jae Hyung Song
In Hwan Choi
Jong Yeul Suh
Jin Pil Kim
Choon Lee
Chul Soo Lee
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lg Electronics Inc., Jae Hyung Song, In Hwan Choi, Jong Yeul Suh, Jin Pil Kim, Choon Lee, Chul Soo Lee filed Critical Lg Electronics Inc.
Publication of CA2696721A1 publication Critical patent/CA2696721A1/en
Application granted granted Critical
Publication of CA2696721C publication Critical patent/CA2696721C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64322—IP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/6437—Real-time Transport Protocol [RTP]

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
  • Computer Security & Cryptography (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

A digital broadcast system and a method of processing data disclose. A receiving system of the digital broadcast system may include a baseband processor, a management processor, and a presentation processor. The baseband processor receives broadcast signals including mobile service data and main service data. The mobile service data configures a RS frame, and the RS frame includes the mobile service data and at least one type of channel setting information on the mobile service data. The management processor decodes the RS frame to acquire the mobile service data and the at least one type of channel setting information on the mobile service data, then extracts position information of an SDP message. Herein, the SDP message includes Codec information for each component in the respective virtual channel from the channel setting information, thereby accessing the SDP message from the extracted position information and gathers SDP message information. The presentation processor decodes mobile service data of a corresponding component based upon the gathered SDP
message information.

Claims (15)

  1. [1] A receiving system, comprising:
    a baseband processor receiving broadcast signals including mobile service data and main service data, wherein the mobile service data is capable of configuring a Reed-Solomon (RS), and wherein the RS frame includes the mobile service data and at least one type of channel setting information on the mobile service data;
    a management processor decoding the RS frame so as to acquire the mobile service data and the at least one type of channel setting information on the mobile service data, extracting position information of a session description protocol (SDP) message, the SDP message including Codec information for each component in the respective virtual channel from the channel setting information, thereby accessing the SDP message from the extracted position information and gathering SDP message information; and a presentation processor decoding mobile service data of a corresponding component based upon the gathered SDP message information.
  2. [2] The receiving system of claim 1, wherein the baseband processor further comprises:
    a known sequence detector detecting known data sequences included in at least one data group, the data group configuring the RS frame, and wherein the detected known data sequence is used for demodulation and channel equalization of the mobile service data.
  3. [3] The receiving system of claim 1, wherein the channel setting information corresponds to a service map table (SMT), and wherein the SDP position in-formation is included in the SMT in a descriptor format, so as to be received.
  4. [4] The receiving system of claim 1, wherein, when an SDP reference type included in the SDP position information indicates that the SDP message is being received in a session announcement protocol (SAP) stream format, the management processor accesses an SAP stream so as to gather SDP message information from the SDP position information.
  5. [5] The receiving system of claim 1, wherein, when an SDP reference type included in the SDP position information indicates that the SDP message is being received in an SDP file format through a file delivery over unidirectional transport (FLUTE) session, the management processor accesses a FLUTE session so as to gather SDP message information from the SDP position information.
  6. [6] A method for processing data in a receiving system, comprising:
    receiving broadcast signals including mobile service data and main service data, wherein the mobile service data is capable of configuring a Reed-Solomon (RS) frame, and wherein the RS frame includes the mobile service data and at least one type of channel setting information on the mobile service data;
    decoding the RS frame so as to acquire the mobile service data and the at least one type of channel setting information on the mobile service data;
    extracting position information of a session description protocol (SDP) message, the SDP message including Codec information for each component in the respective virtual channel from the channel setting information, thereby accessing the SDP message from the extracted position information and gathering SDP message information; and decoding mobile service data of a corresponding component based upon the gathered SDP message information.
  7. [7] The method of claim 6, wherein the channel setting information corresponds to a service map table (SMT), and wherein the SDP position information is included in the SMT in a descriptor format, so as to be received.
  8. [8] The method of claim 6, wherein, when an SDP reference type included in the SDP position information indicates that the SDP message is being received in a session announcement protocol (SAP) stream format, an SAP stream is accessed so as to gather SDP message information from the SDP position information.
  9. [9] The method of claim 6, wherein, when an SDP reference type included in the SDP position information indicates that the SDP message is being received in an SDP file format through a file delivery over unidirectional transport (FLUTE) session, a FLUTE session is accessed so as to gather SDP message information from the SDP position information.
  10. [10] A receiving system, comprising:
    a baseband processor receiving broadcast signals including mobile service data and main service data, wherein the mobile service data is capable of configuring a Reed-Solomon (RS) frame, and wherein the RS frame includes the mobile service data and at least one type of channel setting information on the mobile service data;
    a management processor decoding the RS frame so as to acquire the mobile service data and the at least one type of channel setting information on the mobile service data, and extracting Codec information for each component in the respective virtual channel from the channel setting information; and a presentation processor decoding mobile service data of a corresponding component based upon the extracted Codec information.
  11. [11] The receiving system of claim 10, wherein the channel setting information corresponds to a service map table (SMT), and wherein the Codec information is included in the SMT in a descriptor format, so as to be received.
  12. [12] The receiving system of claim 10, wherein the Codec information of a cor-responding component varies based upon a media type and a Codec type of the corresponding component.
  13. [13] A method for processing data in a receiving system, comprising:
    receiving broadcast signals including mobile service data and main service data, wherein the mobile service data is capable of configuring a Reed-Solomon (RS) frame, and wherein the RS frame includes the mobile service data and at least one type of channel setting information on the mobile service data;
    decoding the RS frame so as to acquire the mobile service data and the at least one type of channel setting information on the mobile service data;
    extracting Codec information for each component in the respective virtual channel from the channel setting information; and decoding mobile service data of a corresponding component based upon the extracted Codec information.
  14. [14] The method of claim 13, wherein the channel setting information corresponds to a service map table (SMT), and wherein the Codec information is included in the SMT in a descriptor format, so as to be received.
  15. [15] The method of claim 13, further comprising:
    receiving IP access information of a corresponding component through the SMT.
CA2696721A 2007-08-24 2008-08-25 Digital broadcasting system and method of processing data in digital broadcasting system Expired - Fee Related CA2696721C (en)

Applications Claiming Priority (15)

Application Number Priority Date Filing Date Title
US95771407P 2007-08-24 2007-08-24
US60/957,714 2007-08-24
US97408407P 2007-09-21 2007-09-21
US60/974,084 2007-09-21
US97737907P 2007-10-04 2007-10-04
US60/977,379 2007-10-04
US4450408P 2008-04-13 2008-04-13
US61/044,504 2008-04-13
US5981108P 2008-06-09 2008-06-09
US61/059,811 2008-06-09
US7668608P 2008-06-29 2008-06-29
US61/076,686 2008-06-29
PCT/KR2008/004966 WO2009028846A1 (en) 2007-08-24 2008-08-25 Digital broadcasting system and method of processing data in digital broadcasting system
KR1020080082929A KR101599527B1 (en) 2007-08-24 2008-08-25 Digital broadcasting system and method of processing data in digital broadcasting system
KR10-2008-0082929 2008-08-25

Publications (2)

Publication Number Publication Date
CA2696721A1 true CA2696721A1 (en) 2009-03-05
CA2696721C CA2696721C (en) 2012-07-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2696721A Expired - Fee Related CA2696721C (en) 2007-08-24 2008-08-25 Digital broadcasting system and method of processing data in digital broadcasting system

Country Status (6)

Country Link
US (2) US8014333B2 (en)
KR (2) KR101599527B1 (en)
CA (1) CA2696721C (en)
IN (1) IN2010KN00592A (en)
MX (1) MX2010002029A (en)
WO (1) WO2009028846A1 (en)

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Also Published As

Publication number Publication date
KR20160026963A (en) 2016-03-09
US20110280343A1 (en) 2011-11-17
MX2010002029A (en) 2010-03-15
KR20090021120A (en) 2009-02-27
CA2696721C (en) 2012-07-24
KR101599527B1 (en) 2016-03-03
US8149755B2 (en) 2012-04-03
US20090052580A1 (en) 2009-02-26
KR101689615B1 (en) 2016-12-26
IN2010KN00592A (en) 2015-10-02
WO2009028846A1 (en) 2009-03-05
US8014333B2 (en) 2011-09-06

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