CN101202909A - Method and apparatus for transferring and taking over digital television broadcast data - Google Patents
Method and apparatus for transferring and taking over digital television broadcast data Download PDFInfo
- Publication number
- CN101202909A CN101202909A CNA2007100762378A CN200710076237A CN101202909A CN 101202909 A CN101202909 A CN 101202909A CN A2007100762378 A CNA2007100762378 A CN A2007100762378A CN 200710076237 A CN200710076237 A CN 200710076237A CN 101202909 A CN101202909 A CN 101202909A
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- China
- Prior art keywords
- data
- digital television
- packet
- data flow
- dvb
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- 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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- 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]
- H04N21/20—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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23614—Multiplexing of additional data and video streams
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2362—Generation or processing of Service Information [SI]
-
- 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
- H04N21/434—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
- H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
-
- 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
- H04N21/434—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
- H04N21/4348—Demultiplexing of additional data and video streams
-
- 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
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention is applicable to the technical field of a digital television and provides a method and a device for the transmission and receiving of digital television broadcasting data. The method comprises the following steps: encapsulating original data into a DVB chart; encapsulating the data which is encapsulated in the DVB chart into data stream; encapsulating the data stream into an IP data packet which is then transferred to a digital television transmission network. By directly encapsulating the original data into the DVB chart, encapsulating the data which is encapsulated into the DVB chart into the data stream and sending out the IP data packet which is encapsulated from the data stream, the invention solves the problem of complex transmission of digital television broadcasting data in the prior art caused by the encapsulation and analysis to the original data according to the engagement of private data and the data broadcasting standard.
Description
Technical field
The invention belongs to the digital television techniques field, relate in particular to a kind of transmission, method of reseptance and device of digital television broadcasting data.
Background technology
Fast development along with Digital Television, digital TV set-top box can receive audio, video data, digital broadcast data, audio-video encryption data, integrated (the System Integration of digital television system, SI) data, digital television program guide data, this makes digital video broadcasting (Digital Video Broadcasting, DVB) (Moving Picture Experts Group, MPEG) various digital technologies are fully used in 2 standards with Motion Picture Experts Group.
In the prior art, the transmission of digital broadcasting mostly according to self-defining form with image, text and data according to the data pipe protocol encapsulation, and the data format of the DVB standard code of packing into broadcasts then.After the receiving terminal receiving digital television broadcast data, according to this broadcast data of protocol analysis of transmitting terminal agreement, and the broadcast data that receives reverted to image, text and data.Certainly, can comprise the information that receives relevant other data place in the data, by the relevant Data Receiving of these information Control.
Because the information of relations such as the description level in whole broadcast data transmission process, connection is all carried out on transmitting terminal and receiving terminal private data agreement and data broadcast standard, make transmitting terminal and receiving terminal to encapsulate and to resolve according to private data agreement and data broadcast standard, this just makes the transmission course more complicated of broadcast data.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of method of digital television broadcasting data transmission, be intended to solve in the prior art owing to need carry out data encapsulation and parsing with data broadcast standard according to the private data agreement, the digital television broadcasting data transmission complicated problems that causes.
The embodiment of the invention is achieved in that a kind of method of digital television broadcasting data transmission, said method comprising the steps of:
Initial data is encapsulated in the DVB table;
The data encapsulation that is encapsulated in the DVB table is become data flow;
Described data flow is packaged into the IP packet, and this IP packet is sent to digital television transmission.
Another purpose of the embodiment of the invention is to provide a kind of device of digital television broadcasting data transmission, and described device comprises:
The data encapsulation module is used for initial data is encapsulated into the DVB table;
The data flow generation module, the data encapsulation that is used for being encapsulated into the DVB table becomes data flow; And
IP packet generation module is used for described data flow is packaged into the IP packet, and this IP packet is sent to digital television transmission
Another purpose of the embodiment of the invention is to provide a kind of method of digital television broadcasting data reception, and described method comprises:
IP packet in the receiving digital television transmission network, and this packet is demodulated to data flow;
Described data flow is reduced into the DVB table;
Described DVB table is reduced into initial data
Another purpose of the embodiment of the invention is to provide a kind of device of digital television broadcasting data reception, and described device comprises:
The data flow demodulation module is used for the IP packet of receiving digital television transmission network, and this IP packet is demodulated to data flow;
The DVB table generates module, is used for described data flow is reduced into the DVB table; And
The initial data generation module is used for described DVB table is reduced into initial data.
The embodiment of the invention is by being potted directly into initial data in the DVB table, the data encapsulation that is encapsulated in the DVB table is become data flow, this data flow is packaged into the IP packet, and this IP packet is sent to digital television transmission, digital TV terminal is demodulated to data flow with this IP packet after receiving this IP packet, this data flow is reduced into the DVB table, and this DVB table is reduced into initial data, solved in the prior art owing to need carry out data encapsulation and parsing with data broadcast standard according to the private data agreement, the digital television broadcasting data transmission complicated problems that causes.
Description of drawings
Fig. 1 is the method flow diagram of the digital television broadcasting data transmission that provides of the embodiment of the invention;
Fig. 2 is the method flow diagram that the digital television broadcasting data that provides of the embodiment of the invention receives;
Fig. 3 is the structure chart of the digital television broadcasting data transmitting device that provides of the embodiment of the invention;
Fig. 4 is the structure chart of the digital television broadcasting data receiving system that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention is by being potted directly into initial data in the DVB table, the data encapsulation that is encapsulated in the DVB table is become data flow, this data flow is packaged into IP Internet Protocol (Internet Protocol, IP) packet, and this IP packet is sent to digital television transmission, digital TV terminal is demodulated to data flow with this IP packet after receiving this IP packet, and this data flow is reduced into the DVB table, and this DVB table is reduced into initial data.
Fig. 1 shows the flow process of the digital television broadcasting data transmission method that the embodiment of the invention provides, and details are as follows.
In step S101, initial data is encapsulated in the DVB table.
Wherein, the DVB table is to define the private data table specially for transfer of data, comprise a plurality of sublists, this sublist is used to deposit initial data, this sublist includes the table Extended ID etc. of title, type, size and this sublist of the initial data that this sublist deposits, and, the binary data of this initial data for can in PC, storing.
In embodiments of the present invention, when initial data being encapsulated into the DVB table, need not encapsulate according to the data pipe proprietary protocol, and be potted directly in the DVB table, this has just simplified the process of data encapsulation.
In step S102, the data encapsulation that is encapsulated in the DVB table is become data flow.
As embodiments of the invention, the form of this data flow is the transport stream of MPEG2 form.
In step S103, data flow is packaged into the IP packet, and this IP packet is sent to digital television transmission.Wherein, this IP packet is transmission control protocol (Transmission ControlProtocol, TCP) User Datagram Protoco (UDP) in (User Datagram Protocol, a UDP) packet.
In specific implementation process, this IP packet is sent to digital television transmission two kinds of approach.
First kind of approach be with the IP packet send to IP quadrature amplitude modulation modulation (Quadrature AmplitudeModulation, QAM), this IP packet carried out the QAM modulation after, be sent in the Digital Television cable network.
Second kind of approach is that the IP packet is sent to the IP relaying server, this relaying server is broadcast card by code stream again and is broadcast vibration lift index (Accumulation Swing Index, ASI) data flow of agreement, make the IP data directly enter the QAM modulator, perhaps by behind the multiplexer, enter the QAM modulator again, be sent at last in the Digital Television cable network.
Fig. 2 shows the flow process of the digital television broadcasting data method of reseptance that the embodiment of the invention provides, and details are as follows.
In step S201, the IP packet in the receiving digital television transmission network, and this packet is demodulated to data flow.
In step S202, demodulated data stream is reduced into the DVB table.
In step S203, this DVB table is reduced into initial data.
Certainly, in embodiments of the present invention, be that the DVB table directly is reduced into initial data equally, this has just simplified the process of data parsing.
The structure of the device that the digital television broadcasting data that Fig. 3 shows the embodiment of the invention to be provided transmits.
The data encapsulation that data flow generation module 12 will be encapsulated in the DVB table becomes data flow, and as embodiments of the invention, the form of this data flow is the transport stream of MPEG2 form.
IP packet generation module 13 is packaged into the IP packet with data flow, and this IP packet is sent to digital television transmission, and concrete IP packet transport process is stated at preamble, repeats no more herein.
The structure of the device that the digital television broadcasting data that Fig. 4 shows the embodiment of the invention to be provided receives.
IP packet in the data flow demodulation module 21 receiving digital television transmission networks, and this packet is demodulated to data flow, the DVB table generates module 22 tables this data flow is reduced into the DVB table.
Initial data generation module 23 is reduced into initial data with this DVB table.In embodiments of the present invention, initial data generation module 23 is directly this DVB table to be reduced into initial data, and this has just simplified the process of data parsing.
The embodiment of the invention is by being potted directly into initial data in the DVB table, the data encapsulation that is encapsulated in the DVB table is become data flow, this data flow is packaged into the IP packet, and this IP packet is sent to digital television transmission, digital TV terminal is demodulated to data flow with this IP packet after receiving this IP packet, this data flow is reduced into the DVB table, and this DVB table is reduced into initial data, solved in the prior art owing to need carry out data encapsulation and parsing with data broadcast standard according to the private data agreement, the digital television broadcasting data transmission complicated problems that causes.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the method for a digital television broadcasting data transmission is characterized in that, said method comprising the steps of:
Initial data is encapsulated in the DVB table;
The data encapsulation that is encapsulated in the DVB table is become data flow;
Described data flow is packaged into the IP packet, and this IP packet is sent to digital television transmission.
2. the method for digital television broadcasting data transmission as claimed in claim 1 is characterized in that described data flow is the transport stream of MPEG2 form.
3. the device of digital television broadcasting data transmission is characterized in that described device comprises:
The data encapsulation module is used for initial data is encapsulated into the DVB table;
The data flow generation module, the data encapsulation that is used for being encapsulated into the DVB table becomes data flow; And
IP packet generation module is used for described data flow is packaged into the IP packet, and this IP packet is sent to digital television transmission.
4. the device of digital television broadcasting data transmission as claimed in claim 3 is characterized in that described data flow is the transport stream of MPEG2 form.
5. the method that receives of a digital television broadcasting data is characterized in that described method comprises:
IP packet in the receiving digital television transmission network, and this IP packet is demodulated to data flow;
Described data flow is reduced into the DVB table;
Described DVB table is reduced into initial data.
6. the method that digital television broadcasting data as claimed in claim 5 receives is characterized in that described data flow is the transport stream of MPEG2 form.
7. the device that receives of a digital television broadcasting data is characterized in that described device comprises:
The data flow demodulation module is used for the IP packet of receiving digital television transmission network, and this IP packet is demodulated to data flow;
The DVB table generates module, is used for described data flow is reduced into the DVB table; And
The initial data generation module is used for described DVB table is reduced into initial data.
8. the device that digital television broadcasting data as claimed in claim 7 receives is characterized in that described data flow is the transport stream of MPEG2 form.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100762378A CN101202909B (en) | 2007-06-28 | 2007-06-28 | Method and apparatus for transferring and taking over digital television broadcast data |
| PCT/CN2008/071342 WO2009000193A1 (en) | 2007-06-28 | 2008-06-18 | Method and device for transmitting and receiving digital television broadcasting data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100762378A CN101202909B (en) | 2007-06-28 | 2007-06-28 | Method and apparatus for transferring and taking over digital television broadcast data |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101202909A true CN101202909A (en) | 2008-06-18 |
| CN101202909B CN101202909B (en) | 2012-03-07 |
Family
ID=39517839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100762378A Expired - Fee Related CN101202909B (en) | 2007-06-28 | 2007-06-28 | Method and apparatus for transferring and taking over digital television broadcast data |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101202909B (en) |
| WO (1) | WO2009000193A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009000193A1 (en) * | 2007-06-28 | 2008-12-31 | Shenzhen Coship Electronics Co., Ltd. | Method and device for transmitting and receiving digital television broadcasting data |
| CN104967924A (en) * | 2015-06-29 | 2015-10-07 | 众研凯博网络科技有限公司 | IP data packet transmission method and transmission system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114025031B (en) * | 2022-01-04 | 2022-04-08 | 北京航天驭星科技有限公司 | Data processing method and device based on ground measurement and control system data transmission protocol |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100558073C (en) * | 2001-07-17 | 2009-11-04 | 茅于海 | A kind of data control method and device of realizing local interaction |
| CN1642261A (en) * | 2004-01-17 | 2005-07-20 | 北京中视联数字系统有限公司 | Method for mixed broadcasting picture-character and service information |
| CN100362866C (en) * | 2004-01-17 | 2008-01-16 | 北京宽视软件技术有限公司 | Method for generating electronic program guide of digital television set |
| CN1791038A (en) * | 2004-12-17 | 2006-06-21 | 深圳力合数字电视有限公司 | Wide area high-speed wireless access system and its working method |
| CN101202909B (en) * | 2007-06-28 | 2012-03-07 | 深圳市同洲电子股份有限公司 | Method and apparatus for transferring and taking over digital television broadcast data |
-
2007
- 2007-06-28 CN CN2007100762378A patent/CN101202909B/en not_active Expired - Fee Related
-
2008
- 2008-06-18 WO PCT/CN2008/071342 patent/WO2009000193A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009000193A1 (en) * | 2007-06-28 | 2008-12-31 | Shenzhen Coship Electronics Co., Ltd. | Method and device for transmitting and receiving digital television broadcasting data |
| CN104967924A (en) * | 2015-06-29 | 2015-10-07 | 众研凯博网络科技有限公司 | IP data packet transmission method and transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009000193A1 (en) | 2008-12-31 |
| CN101202909B (en) | 2012-03-07 |
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