CN1148020C - Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast - Google Patents
Data injection method for broadcast system integrating digital video-audio broadcast with data broadcastInfo
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- CN1148020C CN1148020C CNB00130366XA CN00130366A CN1148020C CN 1148020 C CN1148020 C CN 1148020C CN B00130366X A CNB00130366X A CN B00130366XA CN 00130366 A CN00130366 A CN 00130366A CN 1148020 C CN1148020 C CN 1148020C
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Abstract
The present invention relates to a data injection method for an integrated and mixed broadcasting system with digital video-audio broadcasting and data broadcasting. A multiplexer has a network socket interface for data injection and a method for injecting a data packet, wherein the network socket interface is provided with a data buffering region, application information of channel code rates, feedback control information and a virtual channel, and a data datacasting service device is connected with the multiplexer through the virtual channel. The data datacasting service device applies bandwidth to the multiplexer, and after the multiplexer responds, a broadcast data packet is transmitted to the multiplexer through the network and is inserted into an output code flow. Data injection based on the multiplexer is realized, and the output bandwidth of the multiplexer is used farthest.
Description
The present invention relates to the method that a kind of digital video-audio broadcasting and the integrated mixed seeding system data of data broadcasting inject, it belongs to the computer communication technology field.
Digital satellite and digital cable broadcast have many advantages than other radio and television, are television broadcasting one of fields of enlivening most of development at present.Digital video-frequency broadcast standard (DVB) regulation that China's digital satellite/wired broadcasting is at present deferred to: the DVB system uses cladding to use synchronization structure, and the coding standard based on motion video and related sound (ISO/IEC 13818, are called for short MPEG-2) is provided; Its business relates to TV, voice and data broadcasting (Data Broadcast).Wherein data broadcasting is meant the data service business such as stock information, website and webpage courseware for remote education and other types.
The basic function of multiplexer is with multichannel input code flow (transport stream that meets the DVB standard), generates one tunnel transport stream total, that meet the DVB standard after multiplexing.The total bitrate of its output code flow is fixed, and the data code flow of importing for each road then should satisfy: the code check summation of input code flow is less than or equal to the total bitrate of output code flow.
As everyone knows, in actual applications, the summation of input bit rate does not generally just in time equal bit rate output.In this case, according to principle of multiplexing, multiplexer will insert an amount of sky bag in its output stream, to satisfy multiplexing requirement.But,, therefore, wrap corresponding output bandwidth with sky and be actually and be wasted because empty bag is without any using value.
In digital video-audio broadcasting and the integrated mixed seeding of data broadcasting system, on the one hand, present multiplexer does not generally possess the data function of injecting, so contains a large amount of sky bags in its output code flow, thereby has wasted a part of output bandwidth; On the other hand, data are injected server and are not generally possessed multiplexed function, therefore can not fundamentally solve the waste problem of output bandwidth.
Figure 1 and Figure 2 is that existing video encoding equipment and multiplexer connected mode schematic diagram reach the structural representation by the code stream of multiplexer output; Because this multiplexer generally do not possess the data function of injecting, data are injected server and can't be connected with it and realize that data inject, thus in the code stream of its output except that effective data packets 1, also contain the sky bag 2 of some.
Main purpose of the present invention is to disclose the method for a kind of digital video-audio broadcasting and the integrated mixed seeding system data injection of data broadcasting, the sky bag replacement technology and two that the sky bag injection technique and the data of multiplexer are injected server is one, realization is injected based on the data of multiplexer, makes the output bandwidth of multiplexer be utilized.
The objective of the invention is to realize by the following technical solutions:
The method that a kind of digital video-audio broadcasting and the integrated mixed seeding system data of data broadcasting inject, this integrated mixed seeding system includes multiplexer, this multiplexer has the standard asynchronous serial line interface and is connected with digital video-audio broadcasting, in order to receive the digital video-audio broadcast singal, it is characterized in that: a web socket interface is set in this multiplexer is connected with a broadcast data server, in order to receive the packet of data broadcasting, its concrete steps are as follows:
A, broadcast data server are to multiplexer application one data transfer bandwidth;
B, multiplexer respond the data transfer bandwidth application of this broadcast data server;
C, broadcast data server send packet to multiplexer;
D, multiplexer are added up its input bit rate, and calculate and control the sky bag quantity that injects according to its bit rate output;
The sky bag that e, multiplexer will inject replaces with the datacast data bag of reception;
F, multiplexer send feedback control information to broadcast data server, and broadcast data server is adjusted the data traffic of its transmission according to this information.
This web socket interface is provided with one or more tunnels, can link with one or more broadcast data servers.The agreement that this web socket interface is deferred to is an ICP/IP protocol.The working method of this web socket interface is the working method based on server/client (SERVER/CLIENT).
This web socket interface includes data buffer zone, passage code check application information and feedback control information.
The present invention is connected with broadcast data server multiplexer by the web socket interface, the sky bag injection technique of multiplexer is combined with the sky bag replacement technology that data are injected server, the packet that broadcast data server will be broadcasted sends multiplexer to by network, and be inserted in the output code flow, realized injecting, maximally utilised the output bandwidth of multiplexer based on the data of multiplexer.
The present invention is described in further detail below in conjunction with accompanying drawing and an embodiment:
Fig. 1 is the use connection diagram of existing multiplexer.
Fig. 2 is not for carrying out the output stream schematic diagram that empty bag injects.
The schematic diagram that Fig. 3 is connected with multiplexer by the web socket interface for broadcast data server.
Fig. 4 is an output stream structural representation of the present invention.
As shown in Figure 3: multiplexer is connected with video encoding equipment by the general input of standard asynchronous serial, output interface, has the web socket interface that is connected with broadcast data server simultaneously on this multiplexer, this interface is provided with one or more tunnel, and each passage can connect a data broadcasting server.
Include data buffer zone, passage code check application information and feedback control information in the web socket interface, it defers to ICP/IP protocol, and works in the mode based on server/client (SERVER/CLIENT).
When multiplexer transmitted data code flow, broadcast data server was to multiplexer application one data transfer bandwidth at the digital video-audio encoding device; Respond the application of this broadcast data server data transfer bandwidth at multiplexer after, broadcast data server sends packet to multiplexer; Multiplexer is added up its input bit rate, and according to its bit rate output calculates and control is injected sky bag quantity, the operation of the sky bag that multiplexer is injected simultaneously replaces with injects the datacast data package operation, around here, multiplexer sends feedback control information to broadcast data server, and broadcast data server is adjusted the data traffic of its output according to this information.
As Fig. 2 with shown in Figure 4: multiplexer of the present invention is owing to can be connected and realize the data function of injecting with broadcast data server, the output code flow Central Plains of multiplexer is replaced by datacast data bag 3 by the position of empty bag 2, therefore, through having only effective data packets 1 and datacast data bag 3 in the dateout code stream of replacing; The bandwidth of multiplexer has obtained effective utilization.
Claims (5)
1, the method for a kind of digital video-audio broadcasting and the integrated mixed seeding system data injection of data broadcasting, this integrated mixed seeding system includes multiplexer, this multiplexer has the standard asynchronous serial line interface and is connected with digital video-audio broadcasting, in order to receive the digital video-audio broadcast singal, it is characterized in that: a web socket interface is set in this multiplexer is connected with a broadcast data server, in order to receive the packet of data broadcasting, its concrete steps are as follows:
A, broadcast data server are to multiplexer application one data transfer bandwidth;
B, multiplexer respond the data transfer bandwidth application of this broadcast data server;
C, broadcast data server send packet to multiplexer;
D, multiplexer are added up its input bit rate, and calculate and control the sky bag quantity that injects according to its bit rate output;
The sky bag that e, multiplexer will inject replaces with the datacast data bag of reception;
F, multiplexer send feedback control information to broadcast data server, and broadcast data server is adjusted the data traffic of its transmission according to this information.
2, the method for digital video-audio broadcasting as claimed in claim 1 and the integrated mixed seeding system data injection of data broadcasting, it is characterized in that: this web socket interface is provided with one or more tunnels, can link with one or more broadcast data servers.
3, the method for digital video-audio broadcasting as claimed in claim 1 and the integrated mixed seeding system data injection of data broadcasting, it is characterized in that: the agreement that this web socket interface is deferred to is an ICP/IP protocol.
4, digital video-audio broadcasting as claimed in claim 1 and the method that the integrated mixed seeding system data of data broadcasting injects, it is characterized in that: the working method of this web socket interface is the working method based on server/client (SERVER/CLIENT).
5, the method for digital video-audio broadcasting as claimed in claim 1 and the integrated mixed seeding system data injection of data broadcasting, it is characterized in that: this web socket interface includes data buffer zone, passage code check application information and feedback control information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00130366XA CN1148020C (en) | 2000-11-02 | 2000-11-02 | Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB00130366XA CN1148020C (en) | 2000-11-02 | 2000-11-02 | Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1353513A CN1353513A (en) | 2002-06-12 |
| CN1148020C true CN1148020C (en) | 2004-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB00130366XA Expired - Fee Related CN1148020C (en) | 2000-11-02 | 2000-11-02 | Data injection method for broadcast system integrating digital video-audio broadcast with data broadcast |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8068485B2 (en) | 2003-05-01 | 2011-11-29 | Genesis Microchip Inc. | Multimedia interface |
| US8059673B2 (en) | 2003-05-01 | 2011-11-15 | Genesis Microchip Inc. | Dynamic resource re-allocation in a packet based video display interface |
| US8204076B2 (en) | 2003-05-01 | 2012-06-19 | Genesis Microchip Inc. | Compact packet based multimedia interface |
| US7733915B2 (en) | 2003-05-01 | 2010-06-08 | Genesis Microchip Inc. | Minimizing buffer requirements in a digital video system |
| US7839860B2 (en) | 2003-05-01 | 2010-11-23 | Genesis Microchip Inc. | Packet based video display interface |
| US7800623B2 (en) | 2003-09-18 | 2010-09-21 | Genesis Microchip Inc. | Bypassing pixel clock generation and CRTC circuits in a graphics controller chip |
| US7634090B2 (en) | 2003-09-26 | 2009-12-15 | Genesis Microchip Inc. | Packet based high definition high-bandwidth digital content protection |
| CN100459502C (en) * | 2006-01-16 | 2009-02-04 | 北京速能数码网络技术有限公司 | Dynamic copying and sending device of asymmetric cross net section multiple path data stream |
| US8156238B2 (en) | 2009-05-13 | 2012-04-10 | Stmicroelectronics, Inc. | Wireless multimedia transport method and apparatus |
| US8429440B2 (en) | 2009-05-13 | 2013-04-23 | Stmicroelectronics, Inc. | Flat panel display driver method and system |
| US8860888B2 (en) | 2009-05-13 | 2014-10-14 | Stmicroelectronics, Inc. | Method and apparatus for power saving during video blanking periods |
| US8760461B2 (en) | 2009-05-13 | 2014-06-24 | Stmicroelectronics, Inc. | Device, system, and method for wide gamut color space support |
| US8370554B2 (en) | 2009-05-18 | 2013-02-05 | Stmicroelectronics, Inc. | Operation of video source and sink with hot plug detection not asserted |
| US8468285B2 (en) | 2009-05-18 | 2013-06-18 | Stmicroelectronics, Inc. | Operation of video source and sink with toggled hot plug detection |
| US8582452B2 (en) | 2009-05-18 | 2013-11-12 | Stmicroelectronics, Inc. | Data link configuration by a receiver in the absence of link training data |
| CN101754024B (en) * | 2009-12-16 | 2012-01-11 | 中兴通讯股份有限公司 | Multiplexing device and multiplexing method |
| US8671234B2 (en) | 2010-05-27 | 2014-03-11 | Stmicroelectronics, Inc. | Level shifting cable adaptor and chip system for use with dual-mode multi-media device |
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2000
- 2000-11-02 CN CNB00130366XA patent/CN1148020C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
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| CN1353513A (en) | 2002-06-12 |
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Granted publication date: 20040428 Termination date: 20091202 |