CN101754024B - Multiplexing device and multiplexing method - Google Patents
Multiplexing device and multiplexing method Download PDFInfo
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- CN101754024B CN101754024B CN 200910258143 CN200910258143A CN101754024B CN 101754024 B CN101754024 B CN 101754024B CN 200910258143 CN200910258143 CN 200910258143 CN 200910258143 A CN200910258143 A CN 200910258143A CN 101754024 B CN101754024 B CN 101754024B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
- H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
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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]
- H04N21/20—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
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Abstract
The invention discloses a multiplexing device and a multiplexing method. The multiplexing device comprises an adaptive input identification module, a service building module, a service management module and a multiframe building module, wherein the adaptive input identification module is used for adaptively identifying and caching the types of input code streams; the service building module is used for extracting multiplexing subframes in input multiframes from the cached input code streams according to the types of the input code streams, or building input audio-video data information into the multiplexing subframes; the service management module is used for performing service management distribution on the multiplexing subframes according to service management configuration information, distributing the multiplexing subframes to corresponding multiframes and storing the multiplexing subframes into a specified cache; and the multiframe building module is used for acquiring the multiplexing subframes from the specified cache, building the multiframes according to multiplexing configuration information, and converting the generated multiframes into multiplexing code streams to perform outputting. The multiplexing device and the multiplexing method can realize that different types of the input code streams use the same device to perform multiplexing treatment, save the station building and maintenance costs, improve the easy-to-use performance of front-end equipment, and reduce error codes and fault risks caused by the combined use of a plurality of multiplexers.
Description
Technical field
The present invention relates to the China mobile multi-media broadcasting technology field, relate in particular to a kind of multiplexer and multiplexing method.
Background technology
At present; CMMB (mobile TV) has a plurality of industry standards and deposits in the world; China Mobile multimedia broadcasting CMMB (China Mobile Multimedia Broadcasting) is the mobile TV industry standard of Chinese independent research, receives widely paying attention to.This standard comprises a plurality of parts, wherein:
Part 2 " multiplexing " has defined the multiplexed sub frame structure of video, audio frequency, data and control information in the mobile multimedia broadcast system and the structure of the multiplexed frame be made up of a plurality of multiplexed sub frames;
" multiplexing implementation guide " for instructing the application guide of multiplexing enforcement, it has defined the standard of multiplexer output PMS (Packaged Multiplexing Stream, packaging multiplexing code stream) code stream;
The 8th part " multiplexer specification requirement and method of measurement " has been stipulated the specification requirement and the method for measurement of exploitation, production, application, measurement and the operation maintenance of mobile multimedia broadcasting multiplex device.
At present, the weak point of multiplexer is the following aspects:
(1), multiplexer function singleness.
Present multiplexer can only be the multiplexer of the input of single reception audio/video coder (and other data service servers); It perhaps can only be the re-multiplexer of the input of single other multiplexers of reception.Current multiplexer is divided into self-contained unit and works alone because of importing difference; Underusing the identical characteristic of this two types of devices (audio/video coder, multiplexer) output integrates; Data output to these two types of devices needs to increase separately multiplexer, thereby has increased operation maintenance cost.
As shown in Figure 1, shown that existing multiplexer and re-multiplexer carry out the scene sketch map that Combination application realizes multiplexing output PMS code stream.Among Fig. 1, the far-end multiplexer is transmitted to receiver via satellite with the audio, video data after multiplexing, sends into re-multiplexer by receiver output PMS code stream; Local multiplexer carries out multiplexing back output PMS code stream to the audio frequency and video rtp streaming of this locality and local data rtp streaming and sends into re-multiplexer; Re-multiplexer carries out the unified PMS code stream of multiplexing output to the multichannel PMS code stream of input again.The PMS code stream sends to radio receiving terminal by transmitter after modulators modulate.
(2), because different multiplexing equipment needs configuration respectively to cause ease for use to reduce.
Under application scenarios shown in Figure 1,, influenced by several factors but work in coordination with, so increased the risk of error code and fault because two types of multiplexing equipments of multiplexer and re-multiplexer need collaborative each other ability operate as normal.
(3), existing multiplexer can not be stored as business information local file or be converted into the multiplexing output of business information through reading local file, can't satisfy some users' customized demand.
Summary of the invention
Technical problem to be solved by this invention is; A kind of multiplexer and multiplexing method are provided; A plurality of input code flows need adopt a plurality of multiplexers to carry out the problem of Combination application in the existing mobile TV standard of solution, realize that single multiplexer is multiplexing to the unification of multiclass input code flow.
In order to address the above problem, the present invention proposes a kind of multiplexer, comprising:
Self adaptation input identification module is used for self adaptation identification input code flow type and buffer memory;
The professional module that makes up is used for extracting the multiplexed sub frame the input multi-frame or will importing the audio, video data information architecture from the input code flow of buffer memory according to the input code flow type becoming multiplexed sub frame;
The service management module is used for according to the service management configuration information multiplexed sub frame being carried out service management and distributes, and the distribution multiplexed sub frame is given corresponding multi-frame and deposited named cache in;
Multi-frame makes up module, is used for obtaining multiplexed sub frame from said named cache, makes up multi-frame according to multiplexing configuration information, and converts the multi-frame that generates into multiplexing code stream and export.
Said multiplexer further comprises: memory module, be used to preserve that professional to make up the multiplexed sub frame that module obtains be the local service message file, and perhaps preserve the local service message file that the user generates; Correspondingly, said service management module also is used for distributing according to the business information file that the service management configuration information is preserved memory module, and indication makes up module with the multiplexing generation multi-frame of business information file by multi-frame.
Said multiplexer further comprises:
Time module is used to the said professional module, service management module, multi-frame of making up and makes up the temporal information that module provides standard;
Control desk is used to and saidly professional makes up module, service management module, multi-frame makes up module that multiplexing required configuration information is provided, and dispose multiplexing/multiplexing more employed control information, and configuration multiplexer operational factor is monitored the multiplexer running status.
Said self adaptation input identification module is through from input code flow extract minutiae information, and the characteristic point information that extraction obtains is mated with the characteristic point storehouse of self adaptation input identification module preservation, comes self adaptation to identify the input code flow type.
Said input code flow comprises: real-time transport protocol (rtp) code stream, packaging multiplexing code stream (PMS); The multiplexing code stream of said output is packaging multiplexing code stream (PMS) or procotol (IP) code stream.
The present invention also provides a kind of multiplexing method, comprises the steps:
Input code flow is carried out self adaptation identification and buffer memory; Perhaps will import the audio, video data information architecture becomes multiplexed sub frame from the input code flow of buffer memory, to extract the multiplexed sub frame of importing in the multi-frame according to the input code flow type; According to the service management configuration information multiplexed sub frame is carried out service management and distribute, multiplexed sub frame is distributed to corresponding multi-frame and deposited named cache in; From said named cache, obtain multiplexed sub frame, make up multi-frame, and convert the multi-frame that generates into multiplexing code stream and export according to multiplexing configuration information.
Said method further comprises:
The multiplexed sub frame that obtains is stored as the local service message file, perhaps preserves the local service message file that the user generates; When making up multi-frame, according to the service management configuration information business information file of preserving is distributed, the multiplexing generation multi-frame of business information file.
In said step of input code flow being carried out self adaptation identification and buffer memory, be through from input code flow extract minutiae information, and the characteristic point information that extraction is obtained and the characteristic point storehouse of preservation mate, come self adaptation to identify the input code flow type.
Said is header packet information from input code flow extract minutiae information.
Said input code flow comprises: real-time transport protocol (rtp) code stream, packaging multiplexing code stream (PMS); The multiplexing code stream of said output is packaging multiplexing code stream (PMS) or procotol (IP) code stream.
Multiplexer of the present invention and multiplexing method, owing to adopt self adaptation input and service management scheme, realization inhomogeneity input code flow is used same device and is carried out multiplexing process, does not need two types of multiplexers to realize the processing respectively of different business input.This has practiced thrift station construction and maintenance cost on the one hand, has improved the ease for use of headend equipment; On the other hand, owing to adopted single equipment, error code and failure risk that a plurality of multiplexer combinations are used have been reduced.In addition, the present invention also provides the scheme of professional storage, the convenient customization function that realizes.User's investment has also been saved in the employing of adaptation scheme.
Description of drawings
Fig. 1 is the scene sketch map that existing multiplexer and re-multiplexer carry out Combination application;
Fig. 2 is a kind of application scenarios sketch map of the multiplexer of hybrid multiplex of the present invention;
Fig. 3 is the structural representation of the multiplexer of hybrid multiplex of the present invention;
Fig. 4 is a kind of sketch map that improves structure of the multiplexer of hybrid multiplex of the present invention;
Fig. 5 is the sketch map that the another kind of the multiplexer of hybrid multiplex of the present invention improves structure;
Fig. 6 is the hardware structure sketch map of the multiplexer of hybrid multiplex of the present invention;
Fig. 7 is the software architecture sketch map of the multiplexer of hybrid multiplex of the present invention;
Fig. 8 is the schematic flow sheet of the multiplexing method of hybrid multiplex of the present invention;
Fig. 9 is a kind of practical implementation flow chart of the multiplexing method of hybrid multiplex of the present invention;
Figure 10 is the another kind of application scenarios sketch map of the multiplexer of hybrid multiplex of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, the present invention is done to specify further below in conjunction with accompanying drawing.
To in present China Mobile multimedia (CMMB) standard during multiplexing realization; When having multiple input code flow; Need to adopt a plurality of multiplexers and re-multiplexer to make up the situation that realizes that final multiplexed frame is exported, the present invention proposes a kind of multiplexer and corresponding multiplexing method of hybrid multiplex, to multiple input code flow (for example RTP code stream, PMS code stream); At first adaptively the input code flow type is discerned and category carries out caching process; Obtain corresponding multiplexed sub frame respectively to dissimilar code streams again, according to the configuration information of control desk, with multiplexed sub frame be assigned to specify multiplexed frame to carry out multiplexing process after output meet CMMB standard PMS code stream.The present invention also can be stored as the local service message file with the business information of input, and can be multiplexing PMS code stream output with the business information file conversion also.
As shown in Figure 2, shown the application scenarios figure of the multiplexer of hybrid multiplex of the present invention.In Fig. 2; Multiplexer of the present invention can receive the input of multiclass code stream from a plurality of encoders and a plurality of multiplexer; After the input of adaptive reception multiclass code stream; The multiclass code stream is carried out PMS code stream that multiplexing back output satisfies the CMMB standard to modulator, after modulators modulate, business information is sent to receiving terminal by transmitter.
As shown in Figure 3, shown the structural representation of the multiplexer of hybrid multiplex of the present invention.This multiplexer comprises:
Self adaptation input identification module is used to discern input code flow type and buffer memory;
The professional module that makes up is used for extracting the multiplexed sub frame the input multi-frame or will importing the audio, video data information architecture from the input code flow of buffer memory according to the input code flow type becoming multiplexed sub frame;
The service management module is used for according to the service management configuration information multiplexed sub frame being carried out service management and distributes, and distributes to corresponding multi-frame and deposits named cache in;
Multi-frame makes up module, is used for obtaining multiplexed sub frame from said named cache, makes up multi-frame according to multiplexing configuration information, and converts the multi-frame that generates into multiplexing code stream and export.
As shown in Figure 4, shown the structural representation after the further improvement of multiplexer of hybrid multiplex of the present invention.This multiplexer further also can comprise memory module, is used to preserve that professional to make up the multiplexed sub frame that module obtains be the local service message file, perhaps the local service message file that generates of client;
Said service management module also is used for distributing according to the business information file that the service management configuration information is preserved memory module, and indication makes up module with the multiplexing generation multi-frame of business information file by multi-frame, the output multiplexing code stream.Fig. 3 and multiplexing code stream shown in Figure 4 can be PMS code stream or IP code stream.
As shown in Figure 5, shown the structural representation after the further improvement of multiplexer of hybrid multiplex of the present invention.
This multiplexer is on based on Fig. 3 and multiplexer basis shown in Figure 4; Further also can comprise time module; Be used to the said professional module, service management module, multi-frame of making up and make up the temporal information that module provides standard; So that carry out time synchronized between the above-mentioned module, guarantee the time consistency of multiplexed information.
This multiplexer is on based on Fig. 3 and multiplexer basis shown in Figure 4; Also can comprise control desk; This control desk is used to said professional structure module, service management module, multi-frame makes up module provides multiplexing required configuration information; Dispose multiplexing/multiplexing more employed control information, configuration multiplexer operational factor, monitoring multiplexer running status.
In the multiplexer shown in above-mentioned Fig. 3 to 5, said professional structure module, service management module, multi-frame make up module and can form central processing module.
As shown in Figure 6, shown the sketch map of multiplexer of the present invention when hardware is realized.This multiplexer comprises: self adaptation input identification module, central processing module, time module, control desk, output module.Wherein:
Self adaptation input identification module can detect simultaneously and receive from the business information of audio/video coder or data service server input or the PMS incoming traffic information that multiplexer generates.It is the PMS input that audio/video coding or data service input or multiplexer generate that self adaptation input identification module can self adaptation identification be distinguished (but also user's manual areas branch) outside input, and the input code flow of the above-mentioned type is carried out caching process.Except hardware was realized, the present invention also can realize virtual self adaptation input identification module through software processes by input interface and central processing module.
Central processing module is used to realize software module functions such as professional structure, service management, multiplexing structure, I/O management, storage administration.This central processing module can be formed the multiplexed frame that meets CMMB standard part 2 according to control desk for the control information of its configuration with the business information in the business information file of the business information of said self adaptation input identification module input or memory module storage, through output module it is made up the PMS bag output that meets the CMMB standard or disposes output IP bag according to the user by configuration information.Simultaneously, said central processing module also can offer control desk with this multiplexer running state information, with for reference.
Control desk is used to the multiplexing/multiplexing more employed control information of said central processing module configuration, configuration hybrid multiplex device operational factor, the running status of the multiplexer of monitoring hybrid multiplex.
Time module is used to said central processing module the temporal information that meets the CMMB standard is provided, and this time module can be the GPS module, is used to multiplexer the gps clock signal is provided.
Memory module is used to store the business information of said central processing module extraction and according to the control desk configuration information business information is stored as the local service message file, and simultaneously, memory module also is used for stored program file and configuration information.
In the hardware structure figure of the preferable realization of multiplexer shown in Figure 6; Comprise: constitute input module by FPGA, Ethernet interface; Constitute central processing module by CPU, internal memory, Flash; Realize time module by the GPS module, constitute memory module, constitute control desk by PC by hard disk controller and hard disk.The I/O management module of FPGA, Ethernet interface, ASI interface and CPU operation realizes virtual self adaptation input module, is used for the business information from ASI or Ethernet interface is carried out the adaptive classification buffer memory.
As shown in Figure 7, shown the software architecture sketch map of the multiplexer of hybrid multiplex of the present invention.The software architecture of this multiplexer comprises: professional module, service management module, multi-frame structure module, I/O management module, the memory management module of making up.Wherein:
The said professional module that makes up, the multiplexed sub frame in the realization extraction input multi-frame maybe will be imported the audio, video data information architecture and become multiplexed sub frame;
Said service management module, realization will be configured to business management method according to control desk from the business that business makes up module or local storage and distribute to each multi-frame;
Said multi-frame makes up module, realizes that the control information that provides according to control desk makes up multiplexed frame according to the CMMB standard;
Said input/output module, the I/O management of realization software and hardware can constitute virtual self-adaptive input interface with input interface.
As shown in Figure 8, shown the multiplexing method sketch map of hybrid multiplex of the present invention.This multiplexing method comprises the steps:
Step 1, input code flow is carried out self adaptation identification and buffer memory;
When carrying out self adaptation identification, can extract the business information characteristic point of input code flow, header packet information is with the characteristic point storehouse coupling of characteristic point of asking for and self adaptation input identification module, coupling back classification buffer memory.The business information characteristic point of extracting can obtain through extracting header packet information.Said input code flow can be the RTP code stream, also can be the PMS code stream.
Step 2, according to the input code flow type from the input code flow of buffer memory, extract input in the multi-frame multiplexed sub frame or will import the audio, video data information architecture and become multiplexed sub frame;
Said multiplexed sub frame can be the multiplexed sub frame that meets the multiplexing standard of CMMB.Being applied in the system of other standard as if this multiplexer, also can be the multiplexed sub frame of corresponding standard, for example the DVB-H subframe.
Step 3, according to the service management configuration information multiplexed sub frame is carried out service management and distribute, multiplexed sub frame is distributed to corresponding multi-frame and deposited named cache in;
Service management divides timing, can adopt N Wei Biaofa will set up the multi-frame that good multiplexed sub frame is distributed to appointment according to the control desk configuration.
Step 4, from said named cache, obtain multiplexed sub frame, make up multi-frame, and convert the multi-frame that generates into multiplexing code stream and export according to multiplexing configuration information.
Be that the multi-frame 0 and multi-frame head that meets the multiplexing standard of CMMB set up in configuration according to control desk when making up multi-frame.During output, FPGA capable of using is packaged into PMS bag or IP bag with the multi-frame cutting.Said multiplexing code stream is PMS code stream or IP code stream.
As shown in Figure 9, shown the concrete flowchart of the multiplexing method of hybrid multiplex of the present invention.
Step 901: self adaptation input identification module receives professional input and extracts the characteristic point of incoming traffic information and the Feature Points Matching and the buffer memory in Adaptive matching storehouse; Self adaptation input identification module is accepted to be transferred to the local PMS stream and the RTP data flow of local audio/video coder and data server via satellite from the far-end multiplexer simultaneously.
Step 902: the business information that professional structure module will be mated successful input extracts the formation subframe;
Step 903: the service management module will deposit named cache in by console message from the multiplexed sub frame that business makes up module or memory;
Step 904: multi-frame makes up module and obtains multiplexed sub frame from professional administration module buffer memory, makes up the multi-frame that meets the multiplexing standard of CMMB by the control desk configuration information;
Step 905: thus programmable logic device FPGA is packaged into PMS bag or IP bag output PMS code stream or IP code stream with the multi-frame cutting.
Further, step 902 also can be stored multiplexed sub frame at memory, is stored as the local service message file, in step 906, the business information file of memory in step 903, is carried out service management by the service management module and distributes, and deposits named cache in.
Shown in figure 10, shown a kind of concrete application scenarios of the multiplexer of hybrid multiplex of the present invention.This hybrid multiplex device can be accepted to be transferred to the local PMS stream and the RTP data flow of local audio/video coder and data server via satellite from the far-end multiplexer simultaneously, at first input code flow is carried out the Adaptive matching buffer memory; Making up module according to the backstage configuration service again will mate the business information of successful input and extract the formation multiplexed sub frame; The multiplexed sub frame that afterwards, will make up module or storage control unit from business by the service management module deposits named cache in by the configuration information of control desk; At last, make up module by multi-frame and obtain multiplexed sub frame from professional administration module buffer memory, make up the multiplexed frame that meets the multiplexing standard of CMMB by the control desk configuration information, output meets the PMS stream of CMMB standard.
Multiplexer of the present invention and multiplexing method, owing to adopt self adaptation input and service management scheme, realization inhomogeneity input code flow is used same device and is carried out multiplexing process, does not need two types of multiplexers to realize the processing respectively of different business input.This has practiced thrift station construction and maintenance cost on the one hand, has improved the ease for use of headend equipment; On the other hand, owing to adopted single equipment, error code and failure risk that a plurality of multiplexer combinations are used have been reduced.In addition, the present invention also provides the scheme of professional storage, the convenient customization function that realizes.User's investment has also been saved in the employing of adaptation scheme.
The above is merely embodiments of the invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. a multiplexer is characterized in that, comprising:
Self adaptation input identification module is used for self adaptation identification input code flow type and buffer memory, and said input code flow type comprises packaging multiplexing code stream (PMS) input that audio/video coding, data service input or multiplexer generate;
The professional module that makes up is used for extracting the multiplexed sub frame the input multi-frame or will importing the audio, video data information architecture from the input code flow of buffer memory according to the input code flow type becoming multiplexed sub frame;
The service management module is used for according to the service management configuration information multiplexed sub frame being carried out service management and distributes, and the distribution multiplexed sub frame is given corresponding multi-frame and deposited named cache in;
Multi-frame makes up module, is used for obtaining multiplexed sub frame from said named cache, makes up multi-frame according to multiplexing configuration information, and converts the multi-frame that generates into multiplexing code stream and export.
2. multiplexer as claimed in claim 1; It is characterized in that; Said multiplexer further comprises: memory module, be used to preserve that professional to make up the multiplexed sub frame that module obtains be the local service message file, and perhaps preserve the local service message file that the user generates;
Correspondingly, said service management module also is used for distributing according to the business information file that the service management configuration information is preserved memory module, and indication makes up module with the multiplexing generation multi-frame of business information file by multi-frame.
3. multiplexer as claimed in claim 1 is characterized in that, said multiplexer further comprises:
Time module is used to the said professional module, service management module, multi-frame of making up and makes up the temporal information that module provides standard;
Control desk is used to and saidly professional makes up module, service management module, multi-frame makes up module that multiplexing required configuration information is provided, and dispose multiplexing/multiplexing more employed control information, and configuration multiplexer operational factor is monitored the multiplexer running status.
4. like each described multiplexer in the claim 1 to 3, it is characterized in that,
Said self adaptation input identification module is through from input code flow extract minutiae information, and the characteristic point information that extraction obtains is mated with the characteristic point storehouse of self adaptation input identification module preservation, comes self adaptation to identify the input code flow type.
5. like each described multiplexer in the claim 1 to 3, it is characterized in that,
Said input code flow comprises: real-time transport protocol (rtp) code stream, packaging multiplexing code stream (PMS);
The multiplexing code stream of said output is packaging multiplexing code stream (PMS) or procotol (IP) code stream.
6. a multiplexing method is characterized in that, comprises the steps:
The input code flow that the input code flow type is comprised packaging multiplexing code stream (PMS) input that audio/video coding, data service input or multiplexer generate carries out self adaptation identification and buffer memory;
Perhaps will import the audio, video data information architecture becomes multiplexed sub frame from the input code flow of buffer memory, to extract the multiplexed sub frame of importing in the multi-frame according to the input code flow type;
According to the service management configuration information multiplexed sub frame is carried out service management and distribute, multiplexed sub frame is distributed to corresponding multi-frame and deposited named cache in;
From said named cache, obtain multiplexed sub frame, make up multi-frame, and convert the multi-frame that generates into multiplexing code stream and export according to multiplexing configuration information.
7. multiplexing method as claimed in claim 6 is characterized in that, said method further comprises:
The multiplexed sub frame that obtains is stored as the local service message file, perhaps preserves the local service message file that the user generates; When making up multi-frame, according to the service management configuration information business information file of preserving is distributed, the multiplexing generation multi-frame of business information file.
8. like claim 6 or 7 described multiplexing methods, it is characterized in that,
In said step of input code flow being carried out self adaptation identification and buffer memory, be through from input code flow extract minutiae information, and the characteristic point information that extraction is obtained and the characteristic point storehouse of preservation mate, come self adaptation to identify the input code flow type.
9. multiplexing method as claimed in claim 8 is characterized in that, said is header packet information from input code flow extract minutiae information.
10. like claim 6 or 7 described multiplexing methods, it is characterized in that,
Said input code flow comprises: real-time transport protocol (rtp) code stream, packaging multiplexing code stream (PMS);
The multiplexing code stream of said output is packaging multiplexing code stream (PMS) or procotol (IP) code stream.
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| CN 200910258143 CN101754024B (en) | 2009-12-16 | 2009-12-16 | Multiplexing device and multiplexing method |
| RU2011142267/08A RU2491759C2 (en) | 2009-12-16 | 2010-06-18 | Multiplexer and multiplexing method |
| PCT/CN2010/074101 WO2010149000A1 (en) | 2009-12-16 | 2010-06-18 | Multiplexer and multiplexing method |
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| CN102014299B (en) * | 2010-11-05 | 2014-07-16 | 中兴通讯股份有限公司 | Method and device for realizing multi-frequency point multiplexing of paths of data |
| CN101977286B (en) * | 2010-11-30 | 2012-09-26 | 福州大学 | Digital television program replacing device |
| CN102111215A (en) * | 2010-12-23 | 2011-06-29 | 中兴通讯股份有限公司 | Method and device for synchronizing configuration data |
| CN103974088B (en) * | 2013-01-28 | 2017-05-10 | 杭州海康威视数字技术股份有限公司 | Data reuse method and system |
| CN113724717B (en) * | 2020-05-21 | 2023-07-14 | 成都鼎桥通信技术有限公司 | Vehicle-mounted audio processing system and method, vehicle-mounted controller and vehicle |
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| RU77527U1 (en) * | 2008-06-11 | 2008-10-20 | Закрытое акционерное общество "НТЦ РИССА НАУЧНО-ПРОИЗВОДСТВЕННОЕ ПРЕДПРИЯТИЕ" | FLEXIBLE MULTIPLEXOR |
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2009
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2010
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101754024A (en) | 2010-06-23 |
| WO2010149000A1 (en) | 2010-12-29 |
| RU2491759C2 (en) | 2013-08-27 |
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