CN103888376B - Data frame transmission method, equipment and system - Google Patents
Data frame transmission method, equipment and system Download PDFInfo
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- CN103888376B CN103888376B CN201210564519.3A CN201210564519A CN103888376B CN 103888376 B CN103888376 B CN 103888376B CN 201210564519 A CN201210564519 A CN 201210564519A CN 103888376 B CN103888376 B CN 103888376B
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Abstract
The invention discloses a data frame transmission method, equipment and a system. The method mainly comprises steps: a second data end processes received data frames carried with channel signs sent by a plurality of different first data ends to obtain reverse data frames of the data frames; according to the corresponding relationship between the channel signs stored locally and the first data end signs, the first data end sign of to- be-back reverse data frames are determined; and the channel paths corresponding to the channel signs are used to send the reverse data frames to the determined first data ends corresponding to the first data end signs. Compared with the prior art, the number of second data ends is reduced, the purpose that one channel path is used for transmitting the data frames sent by the first data ends and the reverse data frames sent by the second data end can be realized, complexity of the system is reduced, system resources are saved, and the utilization rate of system resources is improved.
Description
Technical field
The present invention relates to signal transmission and process field, more particularly, to a kind of transmission method of Frame, equipment and system.
Background technology
In the prior art, the second data terminal being carried out data transmission using reverse coaxial data transmission means and the first number
According to end between be one-to-one relation.When there is multiple first data terminal, it is necessarily required to multiple second data terminals corresponding
Ground receives the data transmitted by coaxial cable, and data processed result is transmitted to the first data by same coaxial cable
End.
But, when the quantity of the first data terminal increases, correspondingly need to increase the quantity of the second data terminal, so will lead
Cause the sharp increase of devices in system quantity, increased the complexity of system, there is system resource waste.
Content of the invention
Embodiments provide a kind of transmission method of Frame, equipment and system, for solving in prior art
The system complexity that between first data end equipment and the second data end equipment, one-to-one relationship causes is higher, causes system to provide
The problem that source wastes.
A kind of transmission equipment of Frame, comprising: processing module and channel selecting module, wherein:
Processing module, for the Frame carrying gap marker that multiple different first data terminals receiving are sent
Processed, obtained the reverse data frame of this Frame, and the reverse data frame carrying gap marker is sent to passage choosing
Select module；
Channel selecting module, for receiving the reverse data frame carrying gap marker of processing module transmission, and root
According to the corresponding relation between locally stored gap marker and the first data terminal mark, determine that described reverse data frame is to be returned
First data terminal mark, and sent described reverse data frame to the institute determining using the corresponding channel path of described gap marker
State the first data terminal and identify corresponding first data terminal.
A kind of transmission method of Frame, comprising:
Receive the Frame carrying gap marker sending from multiple different first data terminals, to the data receiving
Frame is processed, and obtains the reverse data frame of this Frame；
According to the corresponding relation between locally stored gap marker and the first data terminal mark, determine described reverse data
Frame the first data terminal mark to be returned, and using the corresponding channel path of described gap marker, described reverse data frame is sent
Identify corresponding first data terminal to described first data terminal determining.
A kind of Transmission system of Frame, comprising: at least two first data terminals, second data terminal, wherein:
Described first data terminal, for sending, to the second data terminal, the Frame carrying gap marker, and receives second
The reverse data frame that data terminal sends；
Described second data terminal, for receiving the number carrying gap marker sending from multiple different first data terminals
According to frame, the Frame receiving is processed, obtain the reverse data frame of this Frame, according to locally stored gap marker
Corresponding relation and the first data terminal mark between, determines described reverse data frame the first data terminal mark to be returned, and profit
It is right to the described first data terminal mark determining to be sent described reverse data frame with the corresponding channel path of described gap marker
The first data terminal answered.
The present invention has the beneficial effect that:
The embodiment of the present invention is passed through by second data terminal to taking that multiple different first data terminals receiving send
Frame with gap marker is processed, and obtains the reverse data frame of this Frame, according to locally stored gap marker
Corresponding relation and the first data terminal mark between, determines described reverse data frame the first data terminal mark to be returned, and profit
It is right to the described first data terminal mark determining to be sent described reverse data frame with the corresponding channel path of described gap marker
The first data terminal answered, compared with prior art, decreases the quantity of the second data terminal, is simultaneously achieved using same passway
Footpath transmission the first data terminal sends the purpose of the reverse data frame of Frame and transmission the second data terminal transmission, reduces system
Complexity, save system resource, improve the utilization rate of system resource.
Brief description
Fig. 1 is a kind of structural representation of the transmission equipment of Frame of the embodiment of the present invention one；
Fig. 2 is the structural representation of transtation mission circuit；
Fig. 3 is a kind of flow chart of the transmission method of data of the present embodiment two；
Fig. 4 is a kind of structural representation of the Transmission system of Frame of the embodiment of the present invention three.
Specific embodiment
In order to realize the purpose of the present invention, embodiments provide a kind of transmission method of Frame, equipment and be
System, by the data carrying gap marker multiple different first data terminals receiving being sent by second data terminal
Frame is processed, and obtains the reverse data frame of this Frame, identifies it according to locally stored gap marker and the first data terminal
Between corresponding relation, determine described reverse data frame the first data terminal mark to be returned, and corresponded to using described gap marker
Channel path described reverse data frame sent identify corresponding first data terminal to described first data terminal determining, and existing
There is technology to compare, decrease the quantity of the second data terminal, be simultaneously achieved and sent out using same channel path transmission the first data terminal
Send Frame and the purpose of reverse data frame that transmission second data terminal sends, reduce the complexity of system, save and be
System resource, improves the utilization rate of system resource.
With reference to Figure of description, each embodiment of the present invention is described in detail.
Embodiment one:
As shown in figure 1, a kind of structural representation of the transmission equipment of Frame for the embodiment of the present invention one, described equipment
Including: processing module 11 and channel selecting module 12, wherein:
Processing module 11, for the data carrying gap marker that multiple different first data terminals receiving are sent
Frame is processed, and obtains the reverse data frame of this Frame, and the reverse data frame carrying gap marker is sent to passage
Selecting module.
Channel selecting module 12, for receiving the reverse data frame carrying gap marker of processing module transmission, and
According to the corresponding relation between locally stored gap marker and the first data terminal mark, determine that described reverse data frame is to be returned
First data terminal mark, and using the corresponding channel path of described gap marker by described reverse data frame send to determine
Described first data terminal identifies corresponding first data terminal.
Wherein, described channel path is coaxial cable.
Specifically, multiple first data terminals send Frame to second data terminal, and each first data terminal passes through really
Fixed transmission channel path, by data frame transfer to be sent to memorizer, wherein, carries passage mark in described Frame
Know.
It should be noted that the channel path of different first data terminal transmitting data frames is different.
Corresponding relation between each first data terminal this first data terminal locally stored mark and gap marker, root
Determine channel path according to gap marker.
Specifically, each first data terminal is when sending Frame, according to locally stored first data terminal mark, passage
Corresponding relation between path and gap marker, the first data terminal mark and gap marker are carried in Frame to be sent
In, using channel path, Frame to be sent is sent to the second data terminal.
Specifically, described processing module 11, the Frame specifically for sending to the first data terminal is scanned, according to depositing
Corresponding relation between the row number information of Frame of storage and blanking zone data, is scanning blanking zone data corresponding line number letter
During breath, send the reverse data frame transmission message carrying gap marker to channel selecting module.
Described channel selecting module 12, is additionally operable to before sending reverse data frame to the first data terminal, reception processing mould
When what block 11 sent carries the reverse data frame transmission message of gap marker, according to carry in reverse data frame transmission message
Gap marker, determines reverse data frame to be sent, and the reverse data frame of determination is distributed corresponding to described gap marker
In passage.
Described processing module 11, is scanned specifically for the Frame specifically for sending to the first data terminal, according to
Corresponding relation between the row number information of Frame of storage and blanking zone data, corresponding initial scanning blanking zone data
During row number information, trigger port selecting module 12 starts to send reverse data frame, and corresponding scanning image district data
During last row number information, trigger port selecting module 12 terminates to send reverse data frame.
Due to, in the Frame that the first data terminal sends to the second data terminal, containing blanking zone data in this Frame
With image district data, wherein, blanking zone data is invalid data, the only data pair of image district for the second data terminal
It is only effective data for the second data terminal, therefore, processing module, when being scanned to the Frame receiving, determines
Go out blanking zone data and image district data, be effectively improved data processing effect, the reverse data obtaining after simultaneously processing
Frame writes the Elided data area of this Frame, and such Frame is returned to the first data terminal, is beneficial to the first data terminal
Identification to Frame, it is to avoid interfering between the Frame of transmission on same channel path, saves network transmission
Resource.
Corresponding relation between locally stored Frame line number and blanking zone data for second data terminal, the second data terminal leads to
Cross the row number information to the Frame receiving to be scanned, determine the line number of the Frame receiving, obtaining this Frame is
No for blanking zone data.
More preferably, corresponding relation between locally stored Frame line number and image district data for second data terminal, second
Data terminal passes through the row number information of the Frame receiving is scanned, and determines the line number of the Frame receiving, is somebody's turn to do
Whether Frame is image district data；When obtaining this Frame for image district data, directly this Frame is processed, obtain
Reverse data frame to this Frame.
More preferably, described equipment also includes: decoder module 13 and memory module 14, wherein:
Decoder module 13, for receiving the Frame that the first data terminal is sent by different transmission paths, and to reception
To Frame parsed, determine the relation between the gap marker of each Frame and the first data terminal mark, and will solve
Frame transmission processe module after analysis.
Memory module 14, the reverse data frame after Frame being processed for receiving processing module, and receiving channel
The gap marker that selecting module sends, is locally searching the reverse data frame comprising this gap marker and is being sent to channel selecting mould
Block.
It should be noted that memory module 14 can be both the memorizer with flash memory capability, can also be with caching
The storage device of function (for example: buffer queue), is not specifically limited here.
More preferably, described memory module 14, the Frame after being additionally operable to parse decoder module 13 is stored.
Described equipment also includes: amplification module 15, wherein:
Amplification module 15, after obtaining reverse data frame in processing module, before being sent to channel selecting module, will
The reverse data frame that processing module obtains is amplified processing according to the amplification setting, and by the reverse number after processing and amplifying
It is sent to channel selecting module according to frame.
As shown in Fig. 2 being the structural representation of amplifying circuit in amplification module, described amplifying circuit is one by audion
The amplification control circuit constituting, in memory module 14, the reverse data frame of storage transmits to amplifying circuit from a point, through audion
After processing and amplifying, transmit to channel selecting module from b point.
If directly transmitting the reverse data frame in memory module to channel selecting module, determined logical by channel selecting module
Send after path to the first data terminal, in this course, it is possible that reverse data frame signal is weaker so that first counts
Can not receive, according to termination, the reverse data frame that the second data terminal sends, but reverse data frame is amplified locate through amplifying circuit
After reason, the reverse data frame after amplifying is sent to the first data terminal by channel path by channel to channel adapter, it is ensured that first
Data terminal can identify the reverse data frame receiving completely, is not in None- identified, need the probability resending, carry
The high utilization rate of transfer resource.
It should be noted that when being amplified to reverse data frame processing, can be according to the length of the transmission path determining
The degree of short and signal attenuation, is moderately amplified to reverse data frame processing.
Specifically, described channel selecting module 12, is additionally operable to carry the second data terminal mark in reverse number to be sent
Identify corresponding first data terminal according in frame, being sent to the first data terminal.
The first data terminal is so conducive to determine that the data frame receiving is the reverse data being sent by the second data terminal
Frame.
It should be noted that the first data terminal has the work(sending Frame and receiving the second data terminal reverse data frame
Can, the function that the second data terminal has receiving data frames and sends reverse data frame to the first data terminal.
By embodiment one scheme, by second data terminal to taking that multiple different first data terminals receiving send
Frame with gap marker is processed, and obtains the reverse data frame of this Frame, according to locally stored gap marker
Corresponding relation and the first data terminal mark between, determines described reverse data frame the first data terminal mark to be returned, and profit
It is right to the described first data terminal mark determining to be sent described reverse data frame with the corresponding channel path of described gap marker
The first data terminal answered, compared with prior art, decreases the quantity of the second data terminal, is simultaneously achieved using same passway
Footpath transmission the first data terminal sends the purpose of the reverse data frame of Frame and transmission the second data terminal transmission, reduces system
Complexity, save system resource, improve the utilization rate of system resource.
Embodiment two:
As shown in figure 3, a kind of flow chart of the transmission method of Frame for the present embodiment two.The embodiment of the present invention one He
The embodiment of the present invention two belongs to the embodiment under same inventive concept, and methods described includes:
Step 101: the second data terminal receives the data that multiple different first data terminals are sent by different channel paths
Frame.
Wherein, each Frame includes gap marker.
Specifically, in a step 101, in the both sides of data transfer: side is made up of multiple first data terminals；Opposite side
Then it is made up of second data terminal.
Multiple first data terminals are sent Frame to be sent to second data terminal by different channel paths.
Wherein, described channel path is coaxial cable.
Step 102: the second data terminal parses to the Frame receiving, determine each Frame gap marker and
Relation between first data terminal mark.
Step 103: to first data terminal send Frame be scanned, according to storage Frame row number information with
Corresponding relation between blanking zone data, determines whether the corresponding data of row number information of scanning is blanking zone data, if so, then
Execution step 105；Otherwise, execution step 104.
Specifically, in step 103, the Frame the first data terminal being sent is scanned, in the row number information of scanning
When corresponding data is blanking zone data, send reverse data frame to the first data terminal；Correspond in the row number information determining scanning
Data when not being blanking zone data, refuse to send reverse data frame to the first data terminal, execution is entered to the Frame receiving
The operation that row is processed.
More preferably, the corresponding relation between the row number information of the Frame according to storage and blanking zone data, is scanning
During the corresponding initial row number information of blanking zone data, triggering starts to send reverse data frame to the first data terminal, disappears scanning
During hidden area data last row number information corresponding, triggering terminates to send reverse data frame to the first data terminal.
More preferably, the corresponding relation between the row number information of the Frame according to storage and image district data, is scanning
During the corresponding row number information of image district data, refuse to send reverse data frame, execution step 104 to the first data terminal.
Step 104: the Frame receiving is processed, obtains reverse data frame.
At step 104, when scanning the corresponding row number information of image district data, determine that the Frame receiving is figure
As area's data, and the Frame receiving is processed, obtain the reverse data frame of this Frame.
More preferably, the reverse data frame after processing is stored in buffer queue, conveniently sends out to the first data terminal in determination
When sending, obtain this reverse data frame.
Step 105: when determination is blanking zone data, determine reverse data frame to be sent.
Wherein, carry gap marker in described reverse data frame.
More preferably, in step 105, when determination is blanking zone data, comprise and the data receiving in local lookup
The gap marker identical reverse data frame of frame, determines that this reverse data frame is reverse data frame to be sent.
Step 106: the reverse data obtaining frame is amplified processing by the second data terminal according to the amplification setting.
In step 106, can accurately receive, in order to ensure the first data terminal, the reverse data that the second data terminal returns
Frame, before the second data terminal returns to the first data terminal, is amplified processing to processing the reverse data frame obtaining.
Step 107: the second data terminal according to locally stored gap marker identify with the first data terminal between corresponding pass
System, determines described reverse data frame the first data terminal mark to be returned.
Step 108: described reverse data frame is sent by the second data terminal using the corresponding channel path of described gap marker
Identify corresponding first data terminal to described first data terminal determining.
More preferably, the second data terminal carries the second data terminal mark in reverse data frame to be sent, and is sent to
First data terminal identifies corresponding first data terminal, so facilitates the first data terminal to can recognize that in the Frame receiving
This Frame is that the second data terminal sends.
Embodiment three:
As shown in figure 4, a kind of structural representation of the Transmission system of Frame for the embodiment of the present invention three, described system
Including: at least two first data terminal 211 ~ 21n, second data terminal 22, wherein；
Described first data terminal 211 ~ 21n, for sending, to the second data terminal, the Frame carrying gap marker, and connects
Receive the reverse data frame that the second data terminal sends；
Described second data terminal 22, carries gap marker for receiving from what multiple different first data terminals sent
Frame, is processed to the Frame receiving, and obtains the reverse data frame of this Frame, according to locally stored passage mark
Know the corresponding relation and the first data terminal mark between, determine described reverse data frame the first data terminal mark to be returned, and
Using the corresponding channel path of described gap marker, described reverse data frame is sent to the described first data terminal mark determining
Corresponding first data terminal.
Specifically, described second data terminal 22, the Frame specifically for sending to the first data terminal is scanned, according to
Corresponding relation between the row number information of Frame of storage and blanking zone data, is scanning the corresponding line number of blanking zone data
During information, send the reverse data frame transmission message carrying gap marker to channel selecting module.
Described second data terminal 22, is additionally operable to before sending reverse data frame to the first data terminal, receiving processing module
When the reverse data frame carrying gap marker sending sends message, the passage carrying in message is sent according to reverse data frame
Mark, determines reverse data frame to be sent, and the reverse data frame of determination is distributed passage corresponding to described gap marker
In.
Described second data terminal 22, the Frame specifically for sending to the first data terminal is scanned, according to storage
Corresponding relation between the row number information of Frame and blanking zone data, is scanning the corresponding initial line number letter of blanking zone data
During breath, trigger port selecting module start send reverse data frame, and scan blanking zone data corresponding last
During row number information, trigger port selecting module terminates to send reverse data frame.
Described second data terminal 22, is additionally operable to receive the Frame that the first data terminal is sent by different transmission paths,
And the Frame receiving is parsed, determine the pass between the gap marker of each Frame and the first data terminal mark
System.
Described second data terminal 22, is additionally operable to receive and store the reverse data after processing module is processed to Frame
Frame, and the gap marker that receiving channel selecting module sends, the reverse data frame comprising this gap marker in local lookup is concurrent
Give channel selecting module.
Described second data terminal 22, after obtaining reverse data frame in processing module, is sent to channel selecting module
Before, the reverse data frame that processing module obtains is amplified processing according to the amplification setting.
More preferably, described channel path is coaxial cable.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (15)
1. a kind of transmission equipment of Frame is it is characterised in that include: processing module and channel selecting module, wherein:
Processing module, the Frame carrying gap marker for sending to multiple different first data terminals receiving is carried out
Process, obtain the reverse data frame of this Frame, and the reverse data frame carrying gap marker is sent to channel selecting mould
Block；
Channel selecting module, for receiving the reverse data frame carrying gap marker of processing module transmission, and according to this
Ground storage gap marker and the first data terminal mark between corresponding relation, determine described reverse data frame to be returned first
Data terminal identifies, and is sent described reverse data frame to described the determining using the corresponding channel path of described gap marker
One data terminal identifies corresponding first data terminal, and wherein, the channel path of different first data terminal transmitting data frames is different.
2. equipment as claimed in claim 1 it is characterised in that
Described processing module, the Frame specifically for sending to the first data terminal is scanned, the Frame according to storage
Corresponding relation between row number information and blanking zone data, when scanning the corresponding row number information of blanking zone data, to passage
Selecting module sends the reverse data frame transmission message carrying gap marker；
Described channel selecting module, is additionally operable to before sending reverse data frame to the first data terminal, receiving processing module sends
The reverse data frame carrying gap marker when sending message, the passage mark that carries in message is sent according to reverse data frame
Know, determine reverse data frame to be sent, and the reverse data frame of determination is distributed to the corresponding passage of described gap marker.
3. equipment as claimed in claim 2 it is characterised in that
Described processing module, the Frame specifically for sending to the first data terminal is scanned, the Frame according to storage
Corresponding relation between row number information and blanking zone data, when scanning the corresponding initial row number information of blanking zone data, touches
Send out channel selecting module to start to send reverse data frame, and scan blanking zone data last row number information corresponding
When, trigger port selecting module terminates to send reverse data frame.
4. equipment as claimed in claim 1 is it is characterised in that described equipment also includes:
Decoder module, passes through, for receiving the first data terminal, the Frame that different channel paths send, and to the number receiving
Parsed according to frame, determined the relation between the gap marker of each Frame and the first data terminal mark, and by after parsing
Frame transmission processe module.
5. equipment as claimed in claim 2 is it is characterised in that described equipment also includes:
Memory module, for receiving and storing the reverse data frame after processing module is processed to Frame, and receiving channel
The gap marker that selecting module sends, is locally searching the reverse data frame comprising this gap marker and is being sent to channel selecting mould
Block.
6. equipment as claimed in claim 1 is it is characterised in that described equipment also includes:
Amplification module, after obtaining reverse data frame in processing module, before being sent to channel selecting module, will process mould
The reverse data frame that block obtains is amplified processing according to the amplification setting, and the reverse data frame after processing and amplifying is sent out
Give channel selecting module.
7. described equipment as arbitrary in claim 1～6 is it is characterised in that described channel path is coaxial cable.
8. a kind of transmission method of Frame is it is characterised in that include:
Receive the Frame carrying gap marker sending from multiple different first data terminals, the Frame receiving is entered
Row is processed, and obtains the reverse data frame of this Frame；
According to the corresponding relation between locally stored gap marker and the first data terminal mark, determine that described reverse data frame is treated
The the first data terminal mark returning, and sent described reverse data frame to true using the corresponding channel path of described gap marker
Fixed described first data terminal identifies corresponding first data terminal, wherein, the passway of different first data terminal transmitting data frames
Footpath is different.
9. method as claimed in claim 8 is it is characterised in that receiving from carrying that multiple different first data terminals send
After the Frame of gap marker, methods described also includes:
The Frame that first data terminal is sent is scanned, row number information and the blanking zone data of the Frame according to storage it
Between corresponding relation, determine scanning the corresponding data of row number information whether be blanking zone data；
When the corresponding data of row number information determining scanning is blanking zone data, send reverse data frame to the first data terminal；
When the corresponding data of row number information determining scanning is not blanking zone data, refuse reversely to count to the first data terminal transmission
According to frame, execute the operation that the Frame receiving is processed.
10. method as claimed in claim 9 is it is characterised in that row number information and the blanking zone number of Frame according to storage
According between corresponding relation, determine scanning the corresponding data of row number information be blanking zone data, specifically include:
Corresponding relation between the row number information of the Frame according to storage and blanking zone data, is scanning blanking zone data pair
During the initial row number information answered, triggering starts to send reverse data frame to the first data terminal, corresponds to scanning blanking zone data
Last row number information when, triggering terminate to first data terminal send reverse data frame.
11. methods as claimed in claim 9 it is characterised in that described determine this Frame be blanking zone data when, determine
Contain the reverse data frame of this gap marker, specifically include:
According to the gap marker receiving, comprise the reverse data frame of this gap marker in local lookup.
12. methods as claimed in claim 9 are it is characterised in that receive from carrying that multiple different first data terminals send
Before the Frame of gap marker, methods described also includes:
Receive the first data terminal and pass through the Frame that different channel paths send, and the Frame receiving is parsed,
Determine the relation between the gap marker of each Frame and the first data terminal mark.
13. methods as claimed in claim 9 are it is characterised in that after obtaining reverse data frame, reverse data frame is sent
Before the first data terminal, methods described also includes:
The reverse data obtaining frame is amplified processing according to the amplification setting.
14. such as claim 9～13 arbitrary described methods are it is characterised in that send described reverse data frame to determination
Described first data terminal identifies corresponding first data terminal, specifically includes:
Second data terminal mark is carried in reverse data frame to be sent, and is sent to the first data terminal mark corresponding the
One data terminal.
A kind of 15. Transmission systems of Frame are it is characterised in that include: at least two first data terminals, second data
End, wherein:
Described first data terminal, for sending, to the second data terminal, the Frame carrying gap marker, and receives the second data
The reverse data frame that end sends；
Described second data terminal, for receiving the data carrying gap marker sending from multiple different first data terminals
Frame, is processed to the Frame receiving, and obtains the reverse data frame of this Frame, according to locally stored gap marker with
Corresponding relation between first data terminal mark, determines described reverse data frame the first data terminal mark to be returned, and utilizes
Described reverse data frame is sent and corresponds to the described first data terminal mark determining by the corresponding channel path of described gap marker
The first data terminal, wherein, the channel path of different first data terminal transmitting data frames is different.
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|---|---|---|---|
| CN201210564519.3A CN103888376B (en) | 2012-12-21 | 2012-12-21 | Data frame transmission method, equipment and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210564519.3A CN103888376B (en) | 2012-12-21 | 2012-12-21 | Data frame transmission method, equipment and system |
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| CN103888376A CN103888376A (en) | 2014-06-25 |
| CN103888376B true CN103888376B (en) | 2017-02-01 |
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| CN201210564519.3A Active CN103888376B (en) | 2012-12-21 | 2012-12-21 | Data frame transmission method, equipment and system |
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| CN114040141A (en) * | 2017-10-20 | 2022-02-11 | 杭州海康威视数字技术股份有限公司 | Data transmission method, camera and electronic equipment |
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| US6832388B1 (en) * | 2000-05-30 | 2004-12-14 | Jordan Du Val | Personal computer used in conjunction with television to display information related to television programming |
| CN1564591A (en) * | 2004-04-09 | 2005-01-12 | 南京大学 | Method and appts. for duplex transmitting video signal and controlling data |
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