CN110012254A - TV and Real time visible information source switching handling method - Google Patents
TV and Real time visible information source switching handling method Download PDFInfo
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- CN110012254A CN110012254A CN201910256612.XA CN201910256612A CN110012254A CN 110012254 A CN110012254 A CN 110012254A CN 201910256612 A CN201910256612 A CN 201910256612A CN 110012254 A CN110012254 A CN 110012254A
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 1
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Classifications
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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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
-
- 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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Studio Circuits (AREA)
Abstract
The invention discloses TV and Real time visible information source switching handling methods, the TV includes: plurality of information resources interface, message source distributor, TV motherboard, multiple video processing boards, display panel, the fpga chip connecting respectively with TV motherboard, each video processing board, by TV motherboard, treated takes full frame key frame, and the pre- aobvious picture of multiple subwindows that multiple video processing boards are converted into is synthesized, synthesis processing exports display data and gives Display panel picture to take the final picture that full frame key frame shows the pre- aobvious picture of multiple subwindows at one；The request command that fpga chip is also used to receive the order of TV motherboard sending and FPGA is issued to TV motherboard.Before information source switching, content can monitor the present invention in advance, and content plays in real time, can the multiple information source programs of premonitoring；Since premonitoring content plays in real time, user can accurately hold the time point of switching, efficient quick.
Description
Technical field
The present invention relates to TV technologies, and in particular to a kind of TV and Real time visible information source switching handling method.
Background technique
Television set has various video signal sources (abbreviation information source) interface, for example, multiple HDMI interface, AV, VGA, multiple
USB interface and lan network interface etc..Existing TV can't see program before information source switching, and programme content can not
Precognition, it has not been convenient to which user's operation uses.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of TV and Real time visible information sources
Switching handling method, before information source switching, content can monitor the present invention in advance, and content plays in real time, can premonitoring
Three information source programs extend to three or more premonitoring information source programs according to this method.Since premonitoring content plays in real time,
User can accurately hold the time point of switching, efficient quick, user-friendly use.
In order to achieve the above object, this invention takes following technical schemes:
A kind of TV, wherein include:
For connecting the plurality of information resources interface of various signal sources；
The message source distributor connecting with plurality of information resources interface, its for that will switch, which inputs information source all the way and pass through circuit conversion, to be exported
The identical information source in two roads, is transferred to TV motherboard all the way, and another way is transferred to video processing board；It is also used to not switch
Multichannel input information source is exported respectively to multiple video processing boards；
The TV motherboard being connect with message source distributor, for message source distributor is transmitted come wherein all the way message source process at taking
It is sent to fpga chip after full frame key frame, and receives control FPGA execution respective operations after operational order processing；
The multiple video processing boards being separately connected with message source distributor, can receive for the picture of input to be converted into fpga chip
Unified format and narrow down to it is fixed-size can premonitoring show the pre- aobvious picture of the child window of real-time broadcasting content, with for
It is shown in subsequent child window；
The fpga chip being connect respectively with TV motherboard, each video processing board, for by TV motherboard treated take it is full frame
The pre- aobvious picture of multiple subwindows that key frame and multiple video processing boards are converted into is synthesized, and synthesis processing is to account at one
Full full frame key frame shows the final picture of the pre- aobvious picture of multiple subwindows, exports display data and gives Display panel picture；
The request command that fpga chip is also used to receive the order of TV motherboard sending and FPGA is issued to TV motherboard；
The display panel being connect with fpga chip, treated for will pass through fpga chip one take full frame key frame and show
The final picture for showing the pre- aobvious picture of multiple subwindows, is shown.
The TV, wherein further include: the DDR memory being connect with fpga chip, for that will be handled by fpga chip
One afterwards takes full frame key frame and shows that the final picture of the pre- aobvious picture of multiple subwindows carries out data buffer storage.
The TV, wherein the message source distributor is respectively connected at three videos using three information source distributor circuits
Plate is managed, for being converted to three selected input information sources, per the conversion output identical information source in two roads of information source all the way, point
It is two groups, every group of three information sources；One group is transferred to TV motherboard, and another group is transferred to three pieces of video processing boards, at every piece of video
It manages plate and receives information source all the way.
The TV, wherein the video processing board is three, and message source distributor uses three information source distributor circuits, right
Three selected input information sources are converted, and per the conversion output identical information source in two roads of information source all the way, are divided into two groups, every group
Three information sources；One group is transferred to TV motherboard, and another group is transferred to three pieces of video processing boards, and every piece of video processing board receives all the way
Information source.
The TV, wherein the fpga chip is also with 5 vision signals of reception: wherein 1 master of TV motherboard output
The vision signal that channel and 1 accessory channel and 3 pieces of video processing boards respectively export, main channel signal as take full frame
Key frame, remaining 4 vision signal is all small picture, take wherein 3 as child windows show picture.
The TV, wherein the unified format is LVDS format or VByOne format.
The Real time visible information source switching handling method of any one of a kind of TV, wherein include the following steps:
The multi-information source signal of multiple information source interfaces is input to the message source distributor connecting with various information source interfaces；
Message source distributor by switching its input all the way information source by circuit conversion export the identical information source in two roads, pass all the way
It is defeated by TV motherboard, another way is transferred to video processing board；Message source distributor is also defeated by the multichannel not switched input information source difference
Out to multiple video processing boards；
The TV motherboard being connect with message source distributor by message source distributor transmission come wherein message source process is full frame at taking all the way
It is sent to fpga chip after key frame, and receives control FPGA execution respective operations after operational order processing；
The picture of input is converted into the receivable system of fpga chip by multiple video processing boards for being separately connected with message source distributor
One format and narrow down to it is fixed-size can premonitoring show the pre- aobvious picture of the child window of real-time broadcasting content, with for subsequent
Child window in show；
The fpga chip that connect respectively with TV motherboard, each video processing board, by TV motherboard, treated takes full frame main picture
The pre- aobvious picture of multiple subwindows that face and multiple video processing boards are converted into is synthesized, and synthesis processing is complete to take at one
The key frame of screen shows the final picture of the pre- aobvious picture of multiple subwindows, exports display data and gives Display panel picture；Also pass through
Fpga chip receives the order that TV motherboard issues and the request command that FPGA is issued to TV motherboard；
The display panel being connect with fpga chip will by fpga chip treated one take full frame key frame show it is more
The final picture of a pre- aobvious picture of child window, is shown.
The Real time visible information source switching handling method, wherein further comprise the steps of:
Initial work is carried out after fpga chip powers on, initialization procedure mainly includes that the internal register of FPGA is arranged and sets
Set the running parameter of display panel；
Subsequently into main program, main program only shows key frame, the main channel picture that only display TV mainboard is sent；
During main program, fpga chip judges whether that receiving level 1 command opens more windows；
If receiving level 1 command opens more windows, three child windows are opened；
Then, FPGA judges whether to receive secondary command, and there are two secondary commands: choosing more windows and closes more windows, only
After receiving level 1 command, secondary command is just activated；
If receiving secondary command chooses more window orders, a certain sub- window is chosen by the operational order that remote controler receives user
Mouthful, after pressing acknowledgement key, FPGA is issued to TV motherboard and is requested, and key frame is switched to corresponding information source, is then shut off all sub- windows
Mouthful, main program is returned to, key frame channel switches to corresponding information source.
The Real time visible information source switching handling method, wherein further comprise the steps of:
If receiving the secondary command for closing more windows, all child windows are directly closed, return to main program, key frame channel is not
Become.
The Real time visible information source switching handling method, in which:
The unified format is LVDS format or VByOne format.
Compared to the prior art, TV and Real time visible information source switching handling method provided by the invention, the present invention realize
Its content can monitor in advance, and content plays in real time, can three information source programs of premonitoring, extend to three according to this method
The above premonitoring information source program.Since premonitoring content plays in real time, user can accurately hold the time point of switching, efficiently fast
Victory, experience is splendid, improves TV operation convenience.
Detailed description of the invention
Fig. 1 is the functional block diagram of TV preferred embodiment of the present invention.
Fig. 2 is the TV FPGA program execution flow schematic diagram of the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of the TV key frame of the embodiment of the present invention.
Fig. 4 is that the TV of the embodiment of the present invention opens the structural schematic diagram of three visual information sources.
Fig. 5 is the structural schematic diagram that the TV of the embodiment of the present invention is chosen a visual information source and switched.
Specific embodiment
To make the purpose of the present invention, technical solution and effect clearer, clear and definite, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to
Limit the present invention.
A kind of TV provided in an embodiment of the present invention, as shown in Figure 1, comprising: plurality of information resources interface (various information source interfaces
11), message source distributor 203, TV motherboard 10, multiple video processing boards (as shown in Figure 1 204,205 and 206), display panel
12, the fpga chip 201 being connect respectively with TV motherboard 10, each video processing board.
In the embodiment of the present invention, plurality of information resources interface (various information source interfaces 11) is for connecting various signal sources；For example,
Multiple HDMI interface, AV, VGA, multiple USB interfaces and lan network interface etc..
The message source distributor 203 is connect with plurality of information resources interface (various information source interfaces 11), its for that will switch
Input information source exports the identical information source in two roads by circuit conversion all the way, is transferred to TV motherboard 10 all the way, and another way passes
It is defeated by video processing board；It is also used to export the multichannel not switched input information source to multiple video processing boards (as shown in Figure 1 respectively
204,205 and 206).
TV motherboard 10 is connect with message source distributor 203, the wherein information source all the way for carrying out the transmission of message source distributor 203
It is processed into after taking full frame key frame and is sent to fpga chip 201, and receive control FPGA after operational order is handled and execute correspondence
Operation.
Multiple video processing boards (as shown in Figure 1 204,205 and 206) are separately connected with message source distributor 203 respectively, use
In by the picture of input be converted into the receivable unified format of fpga chip 201 and narrow down to it is fixed-size can premonitoring show
The pre- aobvious picture of child window of real-time broadcasting content, for being shown in subsequent child window.Wherein, the unified format is
LVDS format or VByOne format.
In the embodiment of the present invention, the main function of video processing board is " image down " and " signal format conversion ".Because
The picture size for inputting information source is different, picture is narrowed down to fixed size by video processing board, uniformly so as to subsequent
It is shown in child window；Again because the different formats of input information source, unified format is converted by video processing board, is unified into
The format that FPGA can receive, such as LVDS format, for another example VByOne format.
Fpga chip 201 is connect with TV motherboard 10, each video processing board respectively, for by TV motherboard 10, treated
It takes full frame key frame and the pre- aobvious picture of multiple subwindows that multiple video processing boards are converted into is synthesized, synthesis processing is
The final picture that full frame key frame shows the pre- aobvious picture of multiple subwindows is taken at one, exports display data to Display panel
Picture；The request that fpga chip 201 is also used to receive the order of the sending of TV motherboard 10 and FPGA is issued to TV motherboard 10
Order.
In the embodiment of the present invention, as shown in Figure 1, FPGA receives 5 vision signals: 1 main channel of TV motherboard output
The vision signal respectively exported with 1 accessory channel and 3 pieces of video processing boards, main channel signal are to take full frame master
Picture, remaining 4 vision signal is all small picture, takes wherein 3 conduct child windows display pictures.FPGA also receives TV motherboard
The request command that the order of sending and FPGA are issued to TV motherboard, FPGA also connect with DDR memory bank (i.e. DDR chipset)
Connect, to carry out data buffer storage, the vision signal in multiple channels forms final picture after FPGA is handled, export display data to
Display panel picture.
Auxiliary channel signal is the signal that TV motherboard itself is received, cannot pass through distributor, such as network video, USB
File plays video etc..
Display panel 12 is connect with fpga chip 201, treated for will pass through fpga chip 201 one take it is full frame
Key frame show the pre- aobvious picture of multiple subwindows final picture, shown.
As shown in Figure 1, TV described in the embodiment of the present invention, further includes: the DDR memory being connect with fpga chip 201
202, treated for will pass through fpga chip 201 one take full frame key frame and show the pre- aobvious picture of multiple subwindows
Final picture carries out data buffer storage.
The present invention is preferably, the message source distributor 203 is respectively connected to three videos using three information source distributor circuits
Processing board (as shown in Figure 1 204,205 and 206) turns for converting to three selected input information sources per information source all the way
The output identical information source in two roads is changed, is divided into two groups, every group of three information sources；One group is transferred to TV motherboard 10, another group of biography
Three pieces of video processing boards are defeated by, every piece of video processing board receives information source all the way.
I.e. in the embodiment of the present invention, the video processing board is three (as shown in Figure 1 204,205 and 206), information source point
Orchestration 203 uses three information source distributor circuits, converts to three selected input information sources, per the conversion of information source all the way output two
The identical information source in road is divided into two groups, every group of three information sources；One group is transferred to TV motherboard 10, and another group is transferred to three pieces
Video processing board, every piece of video processing board receive information source all the way.Before information source switching may be implemented in this way, content can premonitoring
Depending on, and content plays in real time, can three information source programs of premonitoring, three or more premonitoring information sources are extended to according to this method
Program.Since premonitoring content plays in real time, user can accurately hold the time point of switching, and efficient quick facilitates user
It operates with.
Wherein, the fpga chip 201 is also with 5 vision signals of reception: 1 main channel that wherein TV motherboard 10 exports
The vision signal respectively exported with 1 accessory channel and 3 pieces of video processing boards, main channel signal are to take full frame master
Picture, remaining 4 vision signal is all small picture, takes wherein 3 conduct child windows display pictures.
Fig. 2 is the TV FPGA program execution flow schematic diagram of the embodiment of the present invention.As shown in Fig. 2, when on fpga chip
Initial work is carried out after electricity, initialization procedure mainly includes the internal register and setting display panel that fpga chip is arranged
Running parameter.Subsequently into main program, main program only shows key frame, the main channel picture that only display TV mainboard is sent, such as
Shown in Fig. 3.During main program, FPGA judges whether to receive level 1 command [opening more windows], if received, opens three sons
Window, the position of child window and size during initialization it has been determined that the video that three child windows are shown, can be by setting
Calmly, three are selected in accessory channel and 3 pieces of video processing boards totally 4 vision signals to show.
Then, FPGA judges whether to receive secondary command, and there are two secondary commands: [choosing more windows] and [closing more
Window], after only receiving level 1 command, secondary command is just activated.If receiving and [choosing more windows] order, user passes through distant
Control device chooses a certain child window, and after pressing acknowledgement key, FPGA is issued to TV motherboard and requested, and key frame is switched to corresponding information source,
All child windows are then shut off, return to main program, key frame channel switches to corresponding information source.If receiving and [closing more windows] life
It enables, then directly closes all child windows, return to main program, key frame channel is constant.
Be that the invention shows picture effect schematic diagrames as shown in Fig. 3, Fig. 4 and Fig. 5: Fig. 3 is key frame, is taken full frame；Fig. 4
The effect picture for opening more windows (three child windows) is shown, the position of child window and big can be set by menucommand
It is small；Fig. 5 be shown choose a certain child window and by acknowledgement key after, main window shows the content of corresponding signal at once.
As it can be seen that the TV of the embodiment of the present invention, before information source switching, content can monitor in advance, and content is to broadcast in real time
Put, can three information source programs of premonitoring, three or more premonitoring information source programs are extended to according to this method.Since premonitoring content is
It plays in real time, user can accurately hold the time point of switching, efficient quick, user-friendly use.
Based on the embodiment of above-mentioned TV, the present invention also provides a kind of the real-time of TV described based on the above embodiment can
Depending on information source switching handling method, include the following steps:
The multi-information source signal of multiple information source interfaces is input to the message source distributor 203 connecting with various information source interfaces；
Message source distributor 203 by switching its input all the way information source by circuit conversion export the identical information source in two roads, one
Road is transferred to TV motherboard 10, and another way is transferred to video processing board；Message source distributor 203, which also inputs the multichannel not switched, to be believed
Source is exported respectively to multiple video processing boards；
The TV motherboard 10 being connect with message source distributor 203 by message source distributor 203 transmission come wherein all the way message source process at
It is sent to fpga chip 201 after taking full frame key frame, and receives control FPGA execution respective operations after operational order processing；
The picture of input is converted into fpga chip 201 and can connect by multiple video processing boards for being separately connected with message source distributor 203
The unified format of receipts and narrow down to it is fixed-size can premonitoring show the pre- aobvious picture of the child window of real-time broadcasting content, to be used for
It is shown in subsequent child window；
The fpga chip 201 that is connect respectively with TV motherboard 10, each video processing board, by TV motherboard 10 treated take it is complete
The pre- aobvious picture of multiple subwindows that screen key frame and multiple video processing boards are converted into is synthesized, and synthesis processing is at one
The final picture that full frame key frame shows the pre- aobvious picture of multiple subwindows is taken, display data is exported and gives Display panel picture；
The order that TV motherboard 10 issues and the request command that FPGA is issued to TV motherboard 10 are also received by fpga chip 201；
The display panel 12 being connect with fpga chip 201 will by fpga chip 201 treated one take full frame main picture
Face shows the final picture of the pre- aobvious picture of multiple subwindows, is shown, as detailed above.
Further, the Real time visible information source switching handling method, further comprises the steps of:
Initial work is carried out after fpga chip 201 powers on, initialization procedure mainly includes the internal register that FPGA is arranged
With the running parameter of setting display panel 12；
Subsequently into main program, main program only shows key frame, the main channel picture that only display TV mainboard 10 is sent；
During main program, fpga chip 201 judges whether that receiving level 1 command opens more windows；
If receiving level 1 command opens more windows, three child windows are opened；
Then, FPGA judges whether to receive secondary command, and there are two secondary commands: choosing more windows and closes more windows, only
After receiving level 1 command, secondary command is just activated；
If receiving secondary command chooses more window orders, a certain sub- window is chosen by the operational order that remote controler receives user
Mouthful, after pressing acknowledgement key, FPGA is issued to TV motherboard 10 and is requested, and key frame is switched to corresponding information source, is then shut off all sons
Window returns to main program, and key frame channel switches to corresponding information source.
Wherein, the Real time visible information source switching handling method, further comprises the steps of:
If receiving the secondary command for closing more windows, all child windows are directly closed, return to main program, key frame channel is not
Become.
Wherein: the unified format is LVDS format or VByOne format；As detailed above.
In conclusion TV provided by the invention and Real time visible information source switching handling method, the present invention realize its content
Can monitor in advance, and content plays in real time, can three information source programs of premonitoring, according to this method extend to three or more it is pre-
Supervise information source program.Since premonitoring content plays in real time, user can accurately hold the time point of switching, efficient quick, body
It tests splendid, improves TV operation convenience.
Certainly, those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method,
It is that related hardware (such as processor, controller etc.) can be instructed to complete by computer program, the program can store
In a computer-readable storage medium, which may include the process such as above-mentioned each method embodiment when being executed.Its
Described in storage medium can be for memory, magnetic disk, CD etc..
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of TV characterized by comprising
For connecting the plurality of information resources interface of various signal sources；
The message source distributor connecting with plurality of information resources interface, its for that will switch, which inputs information source all the way and pass through circuit conversion, to be exported
The identical information source in two roads, is transferred to TV motherboard all the way, and another way is transferred to video processing board；It is also used to not switch
Multichannel input information source is exported respectively to multiple video processing boards；
The TV motherboard being connect with message source distributor, for message source distributor is transmitted come wherein all the way message source process at taking
It is sent to fpga chip after full frame key frame, and receives control FPGA execution respective operations after operational order processing；
The multiple video processing boards being separately connected with message source distributor, can receive for the picture of input to be converted into fpga chip
Unified format and narrow down to it is fixed-size can premonitoring show the pre- aobvious picture of the child window of real-time broadcasting content, with for
It is shown in subsequent child window；
The fpga chip being connect respectively with TV motherboard, each video processing board, for by TV motherboard treated take it is full frame
The pre- aobvious picture of multiple subwindows that key frame and multiple video processing boards are converted into is synthesized, and synthesis processing is to account at one
Full full frame key frame shows the final picture of the pre- aobvious picture of multiple subwindows, exports display data and gives Display panel picture；
The request command that fpga chip is also used to receive the order of TV motherboard sending and FPGA is issued to TV motherboard；
The display panel being connect with fpga chip, treated for will pass through fpga chip one take full frame key frame and show
The final picture for showing the pre- aobvious picture of multiple subwindows, is shown.
2. TV according to claim 1, which is characterized in that further include: the DDR memory connecting with fpga chip is used for
By by fpga chip treated one take full frame key frame show the final picture of the pre- aobvious picture of multiple subwindows into
Row data buffer storage.
3. TV according to claim 1, which is characterized in that the message source distributor is using three information source distributor circuit difference
Three video processing boards are connected to, for converting to three selected input information sources, per two tunnels of the conversion output of information source all the way
Identical information source is divided into two groups, every group of three information sources；One group is transferred to TV motherboard, and another group is transferred to three pieces of videos
Processing board, every piece of video processing board receive information source all the way.
4. TV according to claim 3, which is characterized in that the video processing board is three, and message source distributor uses three
A information source distributor circuit converts three selected input information sources, identical per two roads of the conversion output of information source all the way
Information source is divided into two groups, every group of three information sources；One group is transferred to TV motherboard, and another group is transferred to three pieces of video processing boards, and every piece
Video processing board receives information source all the way.
5. TV according to claim 4, which is characterized in that the fpga chip is also with 5 vision signals of reception: wherein electric
Depending on the vision signal that 1 main channel of mainboard output and 1 accessory channel and 3 pieces of video processing boards respectively export, main channel
Signal is to take full frame key frame, remaining 4 vision signal is all small picture, takes wherein 3 conduct child windows display pictures
Face.
6. TV according to claim 1, which is characterized in that the unified format is LVDS format or VByOne format.
7. a kind of Real time visible information source switching handling method of the TV as described in claim any one of 1-6, which is characterized in that packet
Include following steps:
The multi-information source signal of multiple information source interfaces is input to the message source distributor connecting with various information source interfaces；
Message source distributor by switching its input all the way information source by circuit conversion export the identical information source in two roads, pass all the way
It is defeated by TV motherboard, another way is transferred to video processing board；Message source distributor is also defeated by the multichannel not switched input information source difference
Out to multiple video processing boards；
The TV motherboard being connect with message source distributor by message source distributor transmission come wherein message source process is full frame at taking all the way
It is sent to fpga chip after key frame, and receives control FPGA execution respective operations after operational order processing；
The picture of input is converted into the receivable system of fpga chip by multiple video processing boards for being separately connected with message source distributor
One format and narrow down to it is fixed-size can premonitoring show the pre- aobvious picture of the child window of real-time broadcasting content, with for subsequent
Child window in show；
The fpga chip that connect respectively with TV motherboard, each video processing board, by TV motherboard, treated takes full frame main picture
The pre- aobvious picture of multiple subwindows that face and multiple video processing boards are converted into is synthesized, and synthesis processing is complete to take at one
The key frame of screen shows the final picture of the pre- aobvious picture of multiple subwindows, exports display data and gives Display panel picture；Also pass through
Fpga chip receives the order that TV motherboard issues and the request command that FPGA is issued to TV motherboard；
The display panel being connect with fpga chip will by fpga chip treated one take full frame key frame show it is more
The final picture of a pre- aobvious picture of child window, is shown.
8. Real time visible information source switching handling method according to claim 7, which is characterized in that further comprise the steps of:
Initial work is carried out after fpga chip powers on, initialization procedure mainly includes that the internal register of FPGA is arranged and sets
Set the running parameter of display panel；
Subsequently into main program, main program only shows key frame, the main channel picture that only display TV mainboard is sent；
During main program, fpga chip judges whether that receiving level 1 command opens more windows；
If receiving level 1 command opens more windows, three child windows are opened；
Then, FPGA judges whether to receive secondary command, and there are two secondary commands: choosing more windows and closes more windows, only
After receiving level 1 command, secondary command is just activated；
If receiving secondary command chooses more window orders, a certain sub- window is chosen by the operational order that remote controler receives user
Mouthful, after pressing acknowledgement key, FPGA is issued to TV motherboard and is requested, and key frame is switched to corresponding information source, is then shut off all sub- windows
Mouthful, main program is returned to, key frame channel switches to corresponding information source.
9. Real time visible information source switching handling method according to claim 8, which is characterized in that further comprise the steps of:
If receiving the secondary command for closing more windows, all child windows are directly closed, return to main program, key frame channel is not
Become.
10. Real time visible information source switching handling method according to claim 8, it is characterised in that:
The unified format is LVDS format or VByOne format.
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