CN105681685A - Signal processor and system and implementation method of picture in picture and multi-screen display - Google Patents

Signal processor and system and implementation method of picture in picture and multi-screen display Download PDF

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Publication number
CN105681685A
CN105681685A CN201410653318.XA CN201410653318A CN105681685A CN 105681685 A CN105681685 A CN 105681685A CN 201410653318 A CN201410653318 A CN 201410653318A CN 105681685 A CN105681685 A CN 105681685A
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China
Prior art keywords
signal
video
output
processing unit
video matrix
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CN201410653318.XA
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Chinese (zh)
Inventor
王旭
尹海丰
梁馨文
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Gushan Electronic Technology (shanghai) Co Ltd
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Gushan Electronic Technology (shanghai) Co Ltd
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Priority to CN201410653318.XA priority Critical patent/CN105681685A/en
Publication of CN105681685A publication Critical patent/CN105681685A/en
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Abstract

The invention provides a signal processor and a system based on a video matrix. The signal processor is connected with a plurality of video matrixes through a processing unit, a signal outputted by each video matrix is converted into a signal of a same protocol and outputted in a combining way, therefore, a picture in picture function can be realized in case of not using special equipment; the signal processing system is composed of a plurality of signal processors, and an output end of a processing unit in each signal processor is connected with input ends of video matrixes in other signal processors of the same protocol with the output signal of the output end of the processing unit, so that the picture in picture function can be realized for the input of a plurality of signal processors, and multi-screen display can also be realized.

Description

What signal processor and system and picture-in-picture and split screen showed realizes method
Technical field
The present invention relates to the communications field, particularly relate to a kind of signal processor based on video matrix and system and picture-in-picture and split screen shows realizes method.
Background technology
Video matrix achieve video camera to monitor order switch display and packet display, it is achieved that video resource share, distribution and switching display, be used primarily in security protection TV monitor system and TV broadcast chamber system. Video matrix interface type can be divided into analog video matrix such as AV matrix, VGA matrix etc. and digital video matrix such as DVI matrix, HDMI matrix etc., also has the mixed video matrix comprising analog interface and digital interface. The interface quantity of video matrix can also have a variety of, typically enters number of ports more than output interface number. Video matrix uses cross point electronic switch chip in a large number, constitutes a complicated cross interconnected video network through rational cascading, there will be flicker and delay in various degree according to what the mode different screen of video matrix switching had.
The video adapting mouth of video matrix achieves on a kind of video interface agreement conversion to another kind of video interface agreement display device with output to difference display interface, this kind of device generally has video input chip, video frequency processing chip, video frequency output chip and control chip composition, it is possible to completed by the single-chip comprising these functions. But the function singleness of video adapting mouth, simply realizes the conversion of display interface protocol, and the conversion between distinct interface agreement also needs to different converting interfaces.
It addition, video matrix simply realizes the cross interconnected of video source and display, it does not have video content is processed especially, is suitable for monitoring system, is not suitable for home entertainment system, moreover this kind of video matrix price is generally sufficiently expensive.
Summary of the invention
For solving problems of the prior art, the present invention provides a kind of signal processor based on video matrix, including
Multiple video matrixs, each described video matrix receives multiple video signals and carries out selecting output; And
Processing unit, connects the plurality of video matrix, and in order to receive the video signal of each described video matrix output, and the signal being converted to agreement of the same race merges output.
Optionally, one of them of multiple signaling protocols that agreement is its reception of described processing unit output signal.
Optionally, described video matrix has two, is respectively used to receive and select output HDMI signal and DisplayPort signal.
Optionally, described processing unit includes controller, receiver module, decoder module, processing module and output module, described receiver module comprises different passages, for receiving the data of different agreement respectively, described decoder module is for decoding the data of different agreement, described processing module is for becoming the data of same agreement by the data fusion of decoded described different agreement and recompile, described output module is used for the data after exporting coding, and described controller is for controlling the collaborative work of above-mentioned each intermodule.
Optionally, described output module includes audio output port, for the data after coding being exported with audio mode.
Optionally, described processing unit is chip, is arranged at the inside of described video matrix.
The present invention also provides for a kind of signal processing system based on video matrix, including:
Multiple described signal processors, in each described signal processor, the outfan of processing unit connects and exports the signal input with the video matrix of agreement in other signal processors with the outfan of above-mentioned processing unit.
What the present invention also provided for a kind of picture-in-picture effect realizes method, including
S1: multiple video matrixs receive multiple video signal respectively and carry out selecting output;
S2: processing unit receives the video signal of each described video matrix output, and the signal being converted to agreement of the same race merges output; And
S3: display screen receives described processing unit and merges the signal of output, shows in a form of picture-in-picture.
Optionally, before above-mentioned steps S1, also include the step that signal processing system is provided; Now, the video signal that described video matrix receives includes the feedback output of processing unit in multiple signal processors.
What the present invention also provided for that a kind of split screen shows realizes method, including
Signal processing system is provided;
Multiple video matrixs receive multiple video signals and carry out selecting output;
Processing unit receives the video signal of each described video matrix output, each outfan that processing unit connects it is shown to respectively after being split by video content, show realizing split screen, wherein, the video signal that described video matrix receives includes the feedback output of processing unit in multiple signal processors.
In the signal processor based on video matrix that the invention provides and system, signal processor connects multiple video matrix by processing unit, the signal exported by each video matrix the signal being converted to agreement of the same race merge output, it is possible to realize picture-in-picture function when not utilizing Special Equipment; Signal processing system is made up of multiple above-mentioned signal processors, connected by the outfan of processing unit in each signal processor and other signal processors export with the outfan of above-mentioned processing unit the signal input with the video matrix of agreement, the input of multiple signal processors can be realized picture-in-picture function, also can realize split screen and show.
Accompanying drawing explanation
Fig. 1 is the structural representation of signal processor described in one embodiment of the invention.
Fig. 2 be in signal processor described in one embodiment of the invention DisplayPort video matrix receive and select output DisplayPort signal realize structure.
Fig. 3 be in signal processor described in one embodiment of the invention HDMI video matrix reception and select output HDMI signal realize structure.
Fig. 4 is the structural representation of processing unit in signal processor described in one embodiment of the invention.
Fig. 5 is the structural representation of signal processing system described in one embodiment of the invention.
Fig. 6 is the flow chart of the method that realizes of picture-in-picture effect described in one embodiment of the invention.
Fig. 7 is the flow chart of the method that realizes that split screen described in one embodiment of the invention shows.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail. According to the following describes and claims, advantages and features of the invention will be apparent from. It should be noted that, accompanying drawing all adopts the form simplified very much and all uses non-ratio accurately, only in order to convenience, the purpose aiding in illustrating the embodiment of the present invention lucidly.
The existing conversion to video protocols and process are all the functions that television set itself carries, and for video matrix, generally only carry out the array switching output of video signal, and therefore majority is used only in the fields such as monitoring. To this, inventors suggest that the device of a kind of conversion only just being realized video protocols by video matrix and process function, substantially increase the function and application scene of video matrix.
The invention provides a kind of signal processor based on video matrix, including:
Multiple video matrixs, each described video matrix receives multiple video signals and carries out selecting output; And processing unit, connect the plurality of video matrix, in order to receive the video signal of each described video matrix output, and the signal being converted to agreement of the same race merges output. In the present embodiment, one of them of multiple signaling protocols that agreement is its reception of described processing unit output signal.
As shown in Figure 1, in the present embodiment, the quantity of video matrix is two, it is DisplayPort video matrix 200 and HDMI video matrix 300 respectively, being respectively used to receive and select output HDMI signal and DisplayPort signal, now processing unit 100 has two kinds of output ports of DisplayPort and HDMI. When needs export DisplayPort signal, processing unit 100 receives the video signal of above two video matrix output, and is converted to the merging output of DisplayPort signal; When needs export HDMI signal, processing unit 100 receives the video signal of above two video matrix output, and is converted to the merging output of HDMI signal. So can realize the conversion of video protocols and process function. It is understood that for the quantity of video matrix, the present invention is not limited as, it is possible to have more video matrixs, in time having more video matrix, processing unit 100 can accept the video signal of more kinds of agreement and carry out respective handling.
DisplayPort video matrix 200 receive and select output DisplayPort signal concrete methods of realizing as shown in Figure 2. The DisplayPort signal of multichannel input is connected to outfan by capacity coupled mode, and has the break-make of multiple on-off control each road signal, when needs select to input certain road signal, controls to switch accordingly to close. HDMI video matrix 300 receive and select output HDMI signal concrete methods of realizing as shown in Figure 3. The HDMI of multichannel input is signally attached to outfan, by the overall power supply controlled multiple signals of a power supply (power), and have the break-make of multiple on-off control each road signal, when needs select to input certain road signal, control corresponding switch and close. DisplayPort and HDMI is differential signal transmission, and Fig. 2 and Fig. 3 all only provides single-ended schematic diagram.
The concrete structure of processing unit 100 is as shown in Figure 4.Processing unit includes controller 50, receiver module 10, decoder module 20, processing module 30 and output module 40, described receiver module 10 comprises different passages, for receiving the data of different agreement respectively, described decoder module 20 is for decoding the data of different agreement, described processing module 30 is for becoming the data of same agreement by the data fusion of decoded described different agreement and recompile, described output module 40 is used for the data after exporting coding, and described controller 50 is for controlling the collaborative work of above-mentioned each intermodule.
In the present embodiment, receiver module 10 comprises different passages can receive the data of HDMI input port and the data of DisplayPort input port respectively, in other embodiments, accepts module 10 and can also have the passage that can accept other port datas. Processing module 30 is except can carrying out basic process by these video signals, it is also possible to this two paths of data is fused into a circuit-switched data, makes output module 40 export from a port, it is achieved that picture-in-picture function; Video signal after processing can also be respectively outputted to different ports by output module 40, it is achieved split screen function, the video data after namely processing exports from different video protocols ports after different codings. Output module 40 can also comprise independent audio output port, for the data after coding being exported with audio mode. In other embodiments, output module 40 can also include VGA the agreement even output port of anolog TV signals, and now processing module 30 can be encoded according to specific protocol respectively.
Described processing unit 100 is chip, is arranged at the inside of described video matrix. Namely signal processor of the present invention is essentially a video matrix powerful after improving, and the function packing of Video processing is realized by the chip of internal matrix.
The present invention also provides for a kind of signal processing system based on video matrix, including multiple above-mentioned signal processors, in each signal processor, the outfan of processing unit connects and exports the signal input with the video matrix of agreement in other signal processors with the outfan of above-mentioned processing unit.
As it is shown in figure 5, in the present embodiment, processing unit output DisplayPort, HDMI of signal processor, and the signal even anolog TV signals of all right outputting VGA agreement, it is also possible to transmit DisplayPort signal by USB3.0. For a certain signal processor, signal processor includes DisplayPort video matrix 200 and HDMI video matrix 300, and video matrix accepts the signal of respective protocol. Also support the input of the signal of USB3.0 due to DisplayPort agreement, therefore DisplayPort video matrix 200 can also receive USB3.0 signal. In multiple signal processors, in each signal processor, the outfan of processing unit connects and exports the signal input with the video matrix of agreement in other signal processors with the outfan of above-mentioned processing unit, for instance the outfan of DisplayPort and HDMI is all connected to the input of the DisplayPort video matrix in other signal processors and HDMI video matrix.
Utilizing above-mentioned signal processor, the present invention can realize the output of picture-in-picture effect, as shown in Figure 6, comprises the following steps:
S1: multiple video matrixs receive multiple video signal respectively and carry out selecting output;
S2: processing unit receives the video signal of each described video matrix output, and the signal being converted to agreement of the same race merges output; And
S3: display screen receives described processing unit and merges the signal of output, shows in a form of picture-in-picture.
Utilizing above-mentioned signal processing system, the present invention also is able to realize the effect of picture-in-picture, and the video signal that now video matrix receives includes the input having not only from itself, it is also possible to the feedback output of processing unit in multiple signal processors. In other words, each processing unit is by the output after the merging of multiple signals, it is also possible to enters other video matrixs by feeding back output, and has other processing units to be further processed and export.
As shown in Figure 5, one concrete case is, HDMI input port 1 connects the HDMI output port of TV box, DisplayPort input port 1 connects the DisplayPort output port of computer, completed synthesis and the switching of picture-in-picture by processing unit 100, so browse perhaps surf the Net in computer while can pay close attention to TV programme or wait a programme televised live beginning. Same principle, if HDMI input port 1 connects family's monitor video, while using computer, so that it may pay close attention to monitoring display content on screen simultaneously. Equally, other processing unit can also complete identical function, such as the switching between DisplayPort input port 2 and HDMI input port 2. It is not limited only to this, another road video content can be paid close attention to while watching any one road video content, such as, HDMI input port 2 and the switching of HDMI input port 1 video content is realized by above-mentioned signal processing system, need the output feedack of processing unit 100' by HDMI input port 2 correspondence to HDMI video matrix 300, namely the outbound course of HDMI input port 1 it is equal to, then processing unit 100 just can complete this switching. So, the input of any two-way realizes the function of picture-in-picture and can realize, and can export the content of picture-in-picture from any one output port.
Utilizing above-mentioned signal processing system, the present invention can realize split screen and show, as it is shown in fig. 7, comprises following steps:
Signal processing system is provided;
Multiple video matrixs receive multiple video signals and carry out selecting output;
Processing unit receives the video signal of each described video matrix output, each outfan that processing unit connects it is shown to respectively after being split by video content, show realizing split screen, wherein, the video signal that described video matrix receives includes the feedback output of processing unit in multiple signal processors.
As shown in Figure 5, one concrete case is, the DisplayPort video content input of any one road can be switched to the input of processing unit 100, processing unit 100 can be shown to, after being split by video content, each outfan that processing unit 100 connects respectively, if needing to export video content from the output port of other processing unit, so by the input of HDMI or the DisplayPort output feedack of processing unit 100 to other processing unit, then can be sent on connected display device by the output port of these processing units. In a word, the video content split screen that above-mentioned signal processing system can realize any one road DisplayPort input is utilized to be shown to the display device being connected with any video-out port.
If video content is not processed, the switching of any input port and any output port can be connected by above-mentioned signal processing system, it is achieved traditional video matrix function. Above-mentioned signal processing system also achieves the input port protocol conversion to output port of differing transmission protocols simultaneously, what upstream equipment was seen is exactly the display device supporting high-definition digital interface one by one, and all of protocol conversion function is completed by above-mentioned signal processing system.
In the signal processor based on video matrix that the invention provides and system, signal processor connects multiple video matrix by processing unit, the signal exported by each video matrix the signal being converted to agreement of the same race merge output, it is possible to realize picture-in-picture function when not utilizing Special Equipment; Signal processing system is made up of multiple above-mentioned signal processors, connected by the outfan of processing unit in each signal processor and other signal processors export with the outfan of above-mentioned processing unit the signal input with the video matrix of agreement, the input of multiple signal processors can be realized picture-in-picture function, also can realize split screen and show.
Obviously, invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art. So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to include these change and modification.

Claims (10)

1. the signal processor based on video matrix, it is characterised in that include
Multiple video matrixs, each described video matrix receives multiple video signals and carries out selecting output; And
Processing unit, connects the plurality of video matrix, and in order to receive the video signal of each described video matrix output, and the signal being converted to agreement of the same race merges output.
2. the signal processor based on video matrix as claimed in claim 1, it is characterised in that: one of them of multiple signaling protocols that agreement is its reception of described processing unit output signal.
3. the signal processor based on video matrix as claimed in claim 1, it is characterised in that: described video matrix has two, is respectively used to receive and select output HDMI signal and DisplayPort signal.
4. the signal processor based on video matrix as claimed in claim 1, it is characterized in that: described processing unit includes controller, receiver module, decoder module, processing module and output module, described receiver module comprises different passages, for receiving the data of different agreement respectively, described decoder module is for decoding the data of different agreement, described processing module is for becoming the data of same agreement by the data fusion of decoded described different agreement and recompile, described output module is used for the data after exporting coding, described controller is for controlling the collaborative work of above-mentioned each intermodule.
5. the signal processor based on video matrix as claimed in claim 4, it is characterised in that described output module includes audio output port, for exporting the data after coding with audio mode.
6. the signal processor based on video matrix as claimed in claim 1, it is characterised in that: described processing unit is chip, is arranged at the inside of described video matrix.
7. the signal processing system based on video matrix, it is characterised in that including:
Multiple signal processors as described in claim 1-6 any one, in each described signal processor, the outfan of processing unit connects and exports the signal input with the video matrix of agreement in other signal processors with the outfan of above-mentioned processing unit.
8. a picture-in-picture effect realize method, it is characterised in that include
S1: multiple video matrixs receive multiple video signal respectively and carry out selecting output;
S2: processing unit receives the video signal of each described video matrix output, and the signal being converted to agreement of the same race merges output; And
S3: display screen receives described processing unit and merges the signal of output, shows in a form of picture-in-picture.
9. picture-in-picture effect as claimed in claim 8 realize method, it is characterised in that before step S1, also include the step that signal processing system as claimed in claim 7 is provided;
Now, the video signal that described video matrix receives includes the feedback output of processing unit in multiple signal processors.
10. what a split screen showed realizes method, it is characterised in that include
Signal processing system as claimed in claim 7 is provided;
Multiple video matrixs receive multiple video signals and carry out selecting output;
Processing unit receives the video signal of each described video matrix output, each outfan that processing unit connects it is shown to respectively after being split by video content, show realizing split screen, wherein, the video signal that described video matrix receives includes the feedback output of processing unit in multiple signal processors.
CN201410653318.XA 2014-11-17 2014-11-17 Signal processor and system and implementation method of picture in picture and multi-screen display Pending CN105681685A (en)

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CN107231537A (en) * 2017-05-10 2017-10-03 浙江大华技术股份有限公司 A kind of picture-in-picture switching method and apparatus
CN107230334A (en) * 2017-05-05 2017-10-03 北京理工大学 A kind of Portable unmanned car ground control terminal
CN116347016A (en) * 2023-05-30 2023-06-27 广东视腾电子科技有限公司 Matrix switcher for video conference

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CN101707710A (en) * 2009-10-30 2010-05-12 深圳市迪威视讯股份有限公司 General decoding video matrix
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