CN110225289A - A kind of conference terminal and interface signal conversion method - Google Patents

Abstract

The embodiment of the invention provides a kind of conference terminal and interface signal conversion methods, the terminal applies are networked in view, the view networking includes view networked devices, and the terminal includes signal integrated interface, the unified mutual core piece of signal, view networking meeting minimum system controller；The embodiment of the present invention can be according to the concrete function or business demand of view networking meeting minimum system controller, access is converted depending on the interface signal for meeting minimum system controller of networking using signal unified mutual core piece, the external interface of can customize simultaneously, transmission while synchronization can support multi-signal, it is unitized to be able to achieve audio-video field cable, avoid connection cables mostly with it is miscellaneous, cause cable interface stability poor, the problem of user's operation inconvenience, save original interface chip, cost control and miniaturization for product have biggish benefit.

Description

A kind of conference terminal and interface signal conversion method

Technical field

The present invention relates to view networking technology fields, more particularly to a kind of conference terminal, and connecing based on conference terminal Mouth signal conversion method.

Background technique

Video conference carry out before, need for more cable to connect with video conference terminal, as cable, HDMI wire, simulation/ Digital audio line etc., these connecting lines are different in size, broad categories, user when operating more have inconvenience.And because connection Cable mostly with it is miscellaneous, cause cable interface stability poor.

Summary of the invention

In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind A kind of conference terminal to solve the above problems, and the interface signal conversion method based on conference terminal.

To solve the above-mentioned problems, the embodiment of the invention discloses a kind of conference terminal, the terminal applies are networked in view, The view networking includes view networked devices, and the terminal includes signal integrated interface, the unified mutual core piece of signal, view networking meeting Minimum system controller, in which:

The signal integrated interface, one end are connect depending on networked devices by cable with described, and the other end and the signal are united One mutual core piece connection；

The unified mutual core piece of the signal, one end are connect with the signal integrated interface, the other end and view networking meeting The connection of minimum system controller is discussed, it can be by institute for that will be converted to by the first interface signal that the signal integrated interface identifies The second interface signal of view networking meeting minimum system controller identification is stated, or the second interface signal is converted to described the One interface signal；

The view networking meeting minimum system controller, for generating the second interface signal or being connect according to described second Message number executes corresponding program.

Further, when the first interface signal is port physical layer PHY signal, the second interface signal is ether When net address MAC signal；

The unified mutual core piece of the signal includes MAC-PHY submodule；

The MAC-PHY submodule is used to being converted to the PHY signal into the MAC signal or turns the MAC signal It is changed to the PHY signal.

Further, when the first interface signal is that high-definition media interface inputs HDMI-IN signal, described second is connect Message number is that high-definition television studio signal digital interface BT.1120 signal and integrated circuit built-in audio bus I2S believe Number when；

The unified mutual core piece of the signal includes minimizing differential signal transmission TMDS-BT.1120 submodule and audio-video Separate submodule；

The TMDS-BT.1120 submodule is used to convert the HDMI-IN signal, and the signal after conversion is transmitted Submodule is separated to the audio-video；

Audio-video separation submodule is used for the Signal separator after the conversion into the BT.1120 signal and described I2S signal.

Further, when the first interface signal is HDMI-OUT signal, the second interface signal is BT.1120 letter Number and when I2S signal；

The unified mutual core piece of the signal includes BT.1120-TMDS submodule and audio-visual synchronization submodule；

The BT.1120-TMDS submodule is used to convert the BT.1120 signal, and the signal after conversion is transmitted To the audio-visual synchronization submodule；

The audio-visual synchronization submodule be used for by the signal after the conversion it is synchronous with the I2S signal be described HDMI-OUT signal.

Further, when the first interface signal is input interface or output interface LINE-IN/OUT signal, described the When two interface signals are I2S signal；

The unified mutual core piece of the signal includes sound coder Audio-Codec submodule；

The Audio-Codec submodule is used to be converted to the LINE-IN signal I2S signal or will be described I2S signal is converted to the LINE-OUT signal.

Further, when the first interface signal is serial communication interface RS232 signal, the second interface signal is When universal asynchronous receiving-transmitting transmitter UART signal；

The unified mutual core piece of the signal includes UART-RS232 submodule；

The UART-RS232 submodule is used to the RS232 signal be converted to the UART signal or by the UART Signal is converted to the RS232 signal.

Further, when it is described regard networked devices as the conference terminal when, one end of the signal integrated interface passes through Single line cable is connect with described depending on networked devices.

Further, when including multiple sub- equipment depending on networked devices when described, one end of the signal integrated interface passes through More cables are connect with the sub- equipment respectively.

To solve present invention problem, a kind of interface signal conversion based on conference terminal of the embodiment of the present invention is proposed Method, the method are applied to view networking, which comprises

The unified mutual core piece of the signal receives the first interface signal of the signal integrated interface forwarding；Wherein, The first interface signal is generated by the view networked devices；

The first interface signal is converted to the meeting minimum system that can be networked by the view by the unified mutual core piece of the signal The second interface signal that controller of uniting identifies；

The second interface signal is sent to the view networking meeting minimum system control by the unified mutual core piece of the signal Device processed；The view networking meeting minimum system controller is used to execute corresponding program according to the second interface signal.

To solve present invention problem, proposes another interface signal based on conference terminal of the embodiment of the present invention and turn Method is changed, the method is applied to view networking, which comprises

The unified mutual core piece of the signal receives described second depending on networking meeting minimum system controller transmission and connects Message number；Wherein, the second interface signal is generated by view networking meeting minimum system controller；

The second interface signal is converted to and can be identified by the signal integrated interface by the unified mutual core piece of the signal The first interface signal；

The first interface signal is sent to the signal integrated interface by the unified mutual core piece of the signal；The signal Integrated interface is used to the first interface signal being forwarded to the view networked devices.

The embodiment of the present invention includes following advantages:

In embodiments of the present invention, can according to view networking meeting minimum system controller concrete function or business demand, Access is converted depending on the interface signal for meeting minimum system controller of networking using signal unified mutual core piece, while can be certainly It is unified to be able to achieve audio-video field cable for the external interface of definitionization, transmission while synchronization can support multi-signal Change, avoid connection cables mostly with it is miscellaneous, cause cable interface stability poor, the problem of user's operation inconvenience saves original Interface chip, cost control and miniaturization for product have biggish benefit.

Detailed description of the invention

Fig. 1 is a kind of networking schematic diagram of view networking of the invention；

Fig. 2 is a kind of hardware structural diagram of node server of the invention；

Fig. 3 is a kind of hardware structural diagram of access switch of the invention；

Fig. 4 is the hardware structural diagram that a kind of Ethernet association of the invention turns gateway；

Fig. 5 is a kind of structural schematic diagram of conference terminal of the embodiment of the present invention；

Fig. 6 is the partial structure diagram of the unified mutual core piece of signal of the embodiment of the present invention；

Fig. 7 is a kind of step flow chart of interface signal conversion method based on the terminal of that embodiment of the invention；

Fig. 8 is the step flow chart of another interface signal conversion method based on the terminal of that embodiment of the invention；

Fig. 9 is the structural block diagram for the interface signal conversion device of the embodiment of the present invention one；

Figure 10 is the structural block diagram for the interface signal conversion device of the embodiment of the present invention two；

Figure 11 is the part of interface structural schematic diagram of existing conference terminal.

Specific embodiment

In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.

It is the important milestone of network Development depending on networking, is a real-time network, can be realized HD video real-time Transmission, Push numerous Internet applications to HD video, high definition is face-to-face.

Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required service Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring Field live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publication All be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV or Computer realizes that high-definition quality video plays.

Embodiment in order to enable those skilled in the art to better understand the present invention is introduced to depending on networking below:

Depending on networking, applied portion of techniques is as described below:

Network technology (Network Technology)

Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on network First video flow.It is exchanged different from simple network packet packet switch (Packet Switching) or lattice network (Circuit Switching) meets Streaming demand using Packet Switching depending on networking technology.Depending on skill of networking Art has flexible, the simple and low price of packet switch, is provided simultaneously with the quality and safety assurance of circuit switching, realizes the whole network friendship Change the seamless connection of formula virtual circuit and data format.

Switching technology (Switching Technology)

Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lack It falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basis It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can be realized at present mutually The whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network video applications to high Qinghua, unitizes.

Server technology (Server Technology)

It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energy Enough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming Media Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.

Reservoir technology (Storage Technology)

The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and Using state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, media Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizes Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, but The concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.

Network security technology (Network Security Technology)

Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every time The network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented black The attack of visitor and virus, structural carefree secure network is provided for user.

It services innovative technology (Service Innovation Technology)

Business and transmission are fused together by unified video platform, whether single user, private user or a net The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type " Complicated applications programming, considerably less code, which can be used, can be realized complicated application, realize the new business innovation of " endless ".

Networking depending on networking is as described below:

It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class Type, but centralized control node is needed to control whole network in network on this basis.

As shown in Figure 1, being divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.

The equipment of access mesh portions can be mainly divided into 3 classes: node server, access switch, terminal (including various machines Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases Even, and it can connect Ethernet.

Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal. Node server can directly be connected with access switch, can also directly be connected with terminal.

Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes: metropolitan area server, node switch, node serve Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.

Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end Point, and belong to metropolitan area mesh portions.

Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.

It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.

Visually claim, access mesh portions can form unified video platform (part in virtual coil), and multiple unified videos are flat Platform can form view networking；Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.

Classify depending on networked devices

1.1 embodiment of the present invention can be mainly divided into 3 classes: server depending on the equipment in networking, interchanger (including ether Net association turns gateway), terminal (including various set-top boxes, encoding board, memory etc.).Metropolitan Area Network (MAN) can be divided on the whole depending on networking (or national net, World Wide Web etc.) and access net.

1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes: node server, access switch (including ether Net association turns gateway), terminal (including various set-top boxes, encoding board, memory etc.).

The specific hardware structure of each access network equipment are as follows:

Node server:

As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk array Module 204；

Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine Module 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, to obtain the navigation information of packet； And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206；If the queue of pack buffer 206 is close It is full, then it abandons；All pack buffer queues of 202 poll of switching engine module, are forwarded: 1) end if meeting the following conditions It is less than that mouth sends caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, packet Include the operation such as initialization, read-write to hard disk；CPU module 203 be mainly responsible for access switch, terminal (not shown) it Between protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table) Configuration, and, the configuration to disk array module 204.

Access switch:

As shown in figure 3, mainly including Network Interface Module (downstream network interface module 301, uplink network interface module 302), switching engine module 303 and CPU module 304；

Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mould Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met, It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mould The packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 304 is come in enters switching engine Module 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet； If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with flow identifier (stream-id) packet is stored in the queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full, It abandons；If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet Navigation information is stored in the data packet queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full, Then abandon.

All pack buffer queues of 303 poll of switching engine module, may include two kinds of situations:

If the queue is that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded: 1) It is less than that the port sends caching；2) the queue package counting facility is greater than zero；3) token that rate control module generates is obtained；

If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and is forwarded: 1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.

Rate control module 308 is configured by CPU module 304, to all downlink networks in programmable interval Interface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.

CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and, Configuration to rate control module 308.

Ethernet association turns gateway:

As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module 402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan Storage 407 and MAC adding module 409, MAC removing module 410.

Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examined Ethernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking mesh way address of measured data packet DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting Identifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410 (2byte), and enter corresponding receive and cache, otherwise abandon；

Downstream network interface module 401 detects the transmission caching of the port, according to the view of packet networking mesh if there is Bao Ze Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway SA, Ethernet length or frame type, and send.

The function that Ethernet association turns other modules in gateway is similar with access switch.

Terminal:

It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including network Mouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engine Module, CPU module；Memory mainly includes Network Interface Module, CPU module and disk array module.

The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes: node server, node switch, metropolitan area server. Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module；Metropolitan area server mainly includes Network Interface Module, switching engine module and CPU module are constituted.

2, networking data package definition is regarded

2.1 access network data package definitions

Access net data packet mainly include following sections: destination address (DA), source address (SA), reserve bytes, payload(PDU)、CRC。

As shown in the table, the data packet for accessing net mainly includes following sections:

DA

SA

Reserved

Payload

CRC

Wherein:

Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packet Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address, Seven, the 8th bytes are access net address；

Source address (SA) is also to be made of 8 bytes (byte), is defined identical as destination address (DA)；

Reserve bytes are made of 2 bytes；

The part payload has different length according to the type of different datagrams, is if it is various protocol packages 64 bytes are 32+1024=1056 bytes if it is single group unicast packets words, are not restricted to above 2 kinds certainly；

CRC is made of 4 bytes, and calculation method follows the Ethernet CRC algorithm of standard.

2.2 Metropolitan Area Network (MAN) packet definitions

The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment It can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node server Connection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipment System, introduces parameter in embodiments of the present invention: label, uniquely to describe a metropolitan area network equipment.

(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification Change) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B just There are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet enters The label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into 0x0001.The networking process of Metropolitan Area Network (MAN) is to enter network process under centralized control, also means that address distribution, the label of Metropolitan Area Network (MAN) Distribution be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point with The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.

As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections:

DA

SA

Reserved

Label

Payload

CRC

That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its In, the format of label, which can refer to, such as gives a definition: label is 32bit, wherein high 16bit retains, only with low 16bit, its position Set is between the reserve bytes and payload of data packet.

In the inside of existing conference terminal, in design, each interface requires a corresponding interface chip, such as net Mouth needs PHY chip, audio to need sound card chip, is also devised with CH430 chip (UART RS 232 can be achieved), HDMI interface Chip etc., the high definition that conference terminal is just able to achieve with this play.With the development of view networking technology, aforesaid way is but also view The volume size of networking meeting minimum system controller (conference terminal) is restricted, and volume cannot be too small, is not so unable to satisfy The requirement that the normal high definition of existing view networking plays；Before video conference simultaneously is carried out, need more cable and video conference is whole End connection, such as cable, HDMI wire, analog/digital audio line, these connecting lines are different in size, broad categories, and user is carrying out There is inconvenience when operation more.And because connection cables mostly with it is miscellaneous, cause cable interface stability poor.The portion of existing conference terminal Point interface structure schematic diagram referring to Fig.1 1.

In view of the above technical problems, with reference to Fig. 5, a kind of structural representation of conference terminal of the embodiment of the present invention is shown Figure, the terminal applies are networked in view, and view networking includes regarding networked devices, the terminal include signal integrated interface 501, The unified mutual core piece 502 of signal, view networking meeting minimum system controller 503, in which:

The signal integrated interface 501, one end are connect depending on networked devices by cable with described, the other end and the signal Unified mutual core piece 502 connects；

The unified mutual core piece 502 of the signal, one end are connect with the signal integrated interface 501, the other end and the view Meeting minimum system controller 503 of networking connects, the first interface signal for that will be identified by the signal integrated interface 501 Being converted to can be by described depending on the second interface signal that identifies of networking meeting minimum system controller 503, or by the second interface Signal is converted to the first interface signal；

The view is networked meeting minimum system controller 503, for generating the second interface signal or according to described the Two interface signals execute corresponding program.

The unified mutual core piece 502 of signal integrated interface 501 described in the embodiment of the present invention, signal, view networking meeting are minimum System controller 503 is all entity apparatus, and wherein signal integrated interface 501 can be by multiple and different interfaces (interface of the invention Can be described as connector) pin (interface of the invention is alternatively referred to as probe) be integrated in an interface channel, and will have phase Seemingly or the pin circuitry of identical coding rule shares, using existing interface standard regulation and recognition rule to multiple pins electricity Road distinguishes, so that the pin of multiple and different numbers is identified as a kind of interface after combining.Due to above-mentioned interface mark Quasi- regulation and recognition rule belong to existing, and multiple entity interfaces are integrated in the concrete mode in an interface channel Belong to existing, can refer to existing deconcentrator to understand, the interface that only present invention integrates is unlike the prior art.

501 one end of signal integrated interface of the embodiment of the present invention is connect depending on networked devices by cable with described, specific According to the difference of view networked devices when connection, there can be following two connection type:

The first, when it is described regard networked devices as the conference terminal when, one end of the signal integrated interface 501 passes through Single line cable is connect with described depending on networked devices.

In the first situation, when it is described regard networked devices as the conference terminal when refer to and described also include depending on networked devices There is the unified mutual core piece 502 of signal integrated interface 501 of the present invention, signal, signal of the present invention is integrated at this time connects One end of mouth 501 can connect one end of the signal integrated interface 501 of the view networked devices by single line cable.

Second, when it is described depending on networked devices include multiple sub- equipment when, one end of the signal integrated interface 501 passes through More cables are connect with the sub- equipment respectively.

In second situation, when described regard refers to the networked devices that regard to be multiple when networked devices include multiple sub- equipment The general designation of sub- equipment, the sub- equipment may be streaming media server, view networked server, view connection cat client etc..This When, one end of signal integrated interface 501 is connect with the sub- equipment respectively by more cables.In specific connection, signal collection A total cable can be first connected at one end of interface 501, total cable, which is then divided into more, with deconcentrator again has specific function The sub-line cable of energy, sub-line cable are separately connected each sub- equipment again.

Minimum system can make the most basic hardware and software environment of booting computer or operation from the angle of maintenance judgement, It is made of power supply, mainboard and CPU, in this system, without the connection of any signal wire, the only power supply of power supply to mainboard connects It connects.The view networking meeting minimum system controller 503 of the embodiment of the present invention is applied in view networking, and belongs to conference terminal most Mini system, it may include the functions such as online, audio and video playing, audio-video collection, storage.Such as above-mentioned view networking meeting minimum system Controller 503 may include that power management module, codec chip, Flash module, double data rate synchronous dynamic random-access are deposited Reservoir DDR.

FPGA uses such a concept of logic unit array LCA, and inside includes configurable logic blocks CLB, input Three parts output module LOB and interconnector.FPGA utilizes small-sized look-up table (16x1RAM) Lai Shixian combinational logic, each Look-up table is connected to the input terminal of a d type flip flop, and trigger drives other logic circuits or driving I/O again, thus constitutes Not only it can realize combination logic function but also can realize the basic logic unit module of sequential logic function, these intermodules utilize gold Belong to line and interconnects or be connected to I/O module.The logic of FPGA be by internal stationary storage unit load programming data come Realize, the value for storing in a memory cell determine between the logic function and modules of logic unit or module with Connection type between I/O, and finally determine function achieved by FPGA, FPGA allows unlimited number of programming.

Above-mentioned characteristic based on FPGA, the unified mutual core piece 502 of the signal of the embodiment of the present invention can be burnt by fpga chip It records and multiple mutually turns IP kernel to realize.

IP kernel (Intellectual Property core) is one section of hardware description language with particular electrical circuit function Program, the program is unrelated with integrated circuit technology, can be transplanted in different semiconductor technologies and remove production IC chip. IP kernel can be realized in different hardware description grades, thereby produce three IP like kernels: soft core, solid core and stone.In FPGA The mode of burning IP kernel belongs to the prior art in chip, is not invention main points of the invention, not described here any more.In order to more clear The each function of mutually turning IP kernel of the explanation of Chu, the present invention are mutually turned IP kernel modularization for institute's burning, are described with submodule.Under Face elaborates the specific of unified mutual 502 burnings of core piece of signal and mutually turns IP in several alternative embodiments of the invention Core and its conversion function.With reference to Fig. 6, the portion of the unified mutual core piece 502 of signal of the embodiment of the present invention is shown Separation structure schematic diagram.

(1), when the first interface signal is port physical layer PHY signal, the second interface signal is ether entoilage When the MAC signal of location；

The unified mutual core piece 502 of the signal includes MAC-PHY submodule 601；

The MAC-PHY submodule 601 is used to the PHY signal be converted to the MAC signal or by the MAC signal Be converted to the PHY signal.

(2), when the first interface signal is that high-definition media interface inputs HDMI-IN signal, the second interface letter Number be high-definition television studio signal digital interface BT.1120 signal and integrated circuit built-in audio bus I2S signal when；

The unified mutual core piece 502 of the signal includes minimizing 602 He of differential signal transmission TMDS-BT.1120 submodule Audio-video separates submodule 603；

The TMDS-BT.1120 submodule 602 is used to convert the HDMI-IN signal, and the signal after conversion is passed It is defeated by the audio-video separation submodule 603；

Audio-video separation submodule 603 be used for the Signal separator after the conversion into the BT.1120 signal and The I2S signal.

(3), when the first interface signal be HDMI-OUT signal, the second interface signal be BT.1120 signal and When I2S signal；

The unified mutual core piece 502 of the signal includes BT.1120-TMDS submodule 604 and audio-visual synchronization submodule 605；

The BT.1120-TMDS submodule 604 is used to convert the BT.1120 signal, and the signal after conversion is passed It is defeated by the audio-visual synchronization submodule 605；

The audio-visual synchronization submodule 605 be used for by the signal after the conversion it is synchronous with the I2S signal be described HDMI-OUT signal.

(4), when the first interface signal is input interface or output interface LINE-IN/OUT signal, described second is connect When message number is I2S signal；

The unified mutual core piece 502 of the signal includes sound coder Audio-Codec submodule 606；

The Audio-Codec submodule 606 is used to the LINE-IN signal be converted to the I2S signal or by institute It states I2S signal and is converted to the LINE-OUT signal.

(5), when the first interface signal is serial communication interface RS232 signal, the second interface signal is general When asynchronous receiving-transmitting transmitter UART signal；

The unified mutual core piece 502 of the signal includes UART-RS232 submodule 607；

The UART-RS232 submodule 607 is used to be converted to the RS232 signal UART signal or will be described UART signal is converted to the RS232 signal.

To sum up, the embodiment of the present invention replaces the function of interface chip using the unified mutual core piece 502 of signal, by signal Multiple mutual rotor modules are integrated in unified mutual core piece 502, such as UART-RS232 submodule, BT.1120-TMDS submodule 604 Deng so that the unified mutual convertible external view networked devices of core piece 502 of signal access the view networking meeting minimum system control The signal of device 503, and freely define and described be transmitted to external view networked devices depending on networking meeting minimum system controller 503 Signal, while multiple entity interfaces of the conference terminal are uniformly accessed into using a signal integrated interface 501, made with this Improved conference terminal volume greatly reduces, avoid connection cables mostly with it is miscellaneous, cause cable interface stability poor, user The manufacturing cost of conference terminal can be effectively controlled in inconvenient problem.

For conference terminal of the invention, using embodiment one and embodiment two come to its specific conversion regime furtherly It is bright.

Embodiment one:

With reference to Fig. 7, a kind of step flow chart of interface signal conversion method based on the terminal of that embodiment of the invention is shown, The method is applied to view networking, and the method can specifically include following steps:

Step S701: the unified mutual core piece 502 of the signal receives the signal integrated interface 501 forwards described first Interface signal；Wherein, the first interface signal is generated by the view networked devices；

Step S702: the first interface signal is converted to and can be joined by the view by the unified mutual core piece 502 of the signal The second interface signal that net meeting minimum system controller 503 identifies；

Step S703: the second interface signal is sent to the view networking meeting by the unified mutual core piece 502 of the signal Discuss minimum system controller 503；The view networking meeting minimum system controller 503 is used for according to the second interface signal, Execute corresponding program.

Embodiment two:

With reference to Fig. 8, the step process of another interface signal conversion method based on the terminal of that embodiment of the invention is shown Figure, the method are applied to view networking, and the method can specifically include following steps:

Step S801: the unified mutual core piece 502 of the signal receives the view networking meeting minimum system controller 503 and sends out The second interface signal sent；Wherein, the second interface signal is raw by view networking meeting minimum system controller 503 At；

Step S802: the unified mutual core piece 502 of the signal is converted to the second interface signal can be by the signal The first interface signal that integrated interface 501 identifies；

Step S803: the first interface signal is sent to the signal and integrated by the unified mutual core piece 502 of the signal Interface 501；The signal integrated interface 501 is used to the first interface signal being forwarded to the view networked devices.

First and second are only intended to unified mutual turn of distinguishing signal in above-mentioned first interface signal and second interface signal The signal of 502 two sides of chip distinguishes signal and view networking meeting minimum that the signal integrated interface 501 identifies The signal that system controller 503 identifies does not have any sequence or sequence meaning.

The embodiment of the present invention one specifically provides the first interface letter for transmitting the signal integrated interface 501 Number being converted to can be by the scheme of the second interface signal identified depending on networking meeting minimum system controller 503.Implement Example two, which specifically provides, is converted to the second interface signal generated depending on networking meeting minimum system controller 503 It can be by the scheme for the first interface signal that the signal integrated interface 501 identifies.

Two kinds of conversion regimes are further illustrated using a specific example below:

There are two types of current high-definition media interface HDMI connector is total, it is divided into the A class connector of 19 needles and the B class of 29 needles Connector, if in order to adapt to different HDMI connectors needing that A class and B class both HDMI are arranged in conference terminal Connector, this has biggish requirement to the manufacturing cost and volume of conference terminal.And the existing most of meeting of inventor's discovery The audio-video chip in terminal is discussed in order to which interface compatibility does not also have HDMI interface generally, and uses BT.1120 interface instead.

The IP that burning HDMI-IN signal and BT.1120 signal and I2S signal mutually turn in FPGA of the embodiment of the present invention one Core, including TMDS-BT.1120 submodule 602 and audio-video separate submodule 603；First transmitted by signal integrated interface 501 Interface signal is HDMI-IN signal, and TMDS-BT.1120 submodule 602 first converts HDMI-IN signal, and will be after conversion Signal is transferred to audio-video separation submodule 603, and then audio-video separates submodule 603 again by the Signal separator after the conversion At BT.1120 signal and I2S signal.It should be noted that BT.1120 signal is video display signals, I2S signal is broadcast for audio Discharge signal, audio-video separation submodule 603 can be the audio-video separation IP kernel of the burning in FPGA, and specific separation method belongs to The prior art, not described here any more.

The IP that burning BT.1120 signal and I2S signal and HDMI-OUT signal mutually turn in FPGA of the embodiment of the present invention one Core, including BT.1120-TMDS submodule 604 and audio-visual synchronization submodule 605；The view networking meeting minimum system control It is BT.1120 signal and I2S signal that device 503, which is sent to FPGA, and BT.1120-TMDS submodule 604 first believes BT.1120 Number conversion, and the signal after conversion is transferred to audio-visual synchronization submodule 605, audio-visual synchronization submodule 605 again will conversion Signal afterwards synchronous with the I2S signal is the HDMI-OUT signal.Above-mentioned audio-visual synchronization submodule 605 can be The audio-visual synchronization IP kernel of burning in FPGA, specific synchronous method belong to the prior art, not described here any more.

In addition, the embodiment of the present invention one and embodiment two be during conversion, networked meeting minimum system according to view The concrete function or business demand of controller 503 can also realize mutually conversion to PHY signal and MAC signal, and to LINE- IN/OUT signal and I2S signal realize mutually conversion, realize mutually conversion to RS232 signal and UART signal, complete signal It after conversion, then is externally interacted by signal integrated interface 501, realizes externally only one interface.

To sum up, the embodiment of the present invention can be according to the concrete function or business need of view networking meeting minimum system controller 503 Ask, to access regard networking meeting minimum system controller 503 interface signal convert, while can customize externally connect Mouthful, transmission while synchronization can support multi-signal is able to achieve audio-video field cable and unitizes, saves original connect Mouth chip, cost control and miniaturization for product have biggish benefit.

It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented Necessary to example.

With reference to Fig. 9, the structural block diagram of the interface signal conversion device for the embodiment of the present invention one, described device are shown It networks applied to view, the unified mutual core piece 502 of the signal can specifically include with lower module:

First interface signal receiving module 901, the first interface forwarded for receiving the signal integrated interface 501 Signal；Wherein, the first interface signal is generated by the view networked devices；

First interface signal conversion module 902, for the first interface signal to be converted to the meeting that can be networked by the view Discuss the second interface signal that minimum system controller 503 identifies；

Second interface signal transmitting module 903, for the second interface signal to be sent to the view networking meeting most Mini system controller 503；The view networking meeting minimum system controller 503 is used to be executed according to the second interface signal Corresponding program.

With reference to Figure 10, the structural block diagram of the interface signal conversion device for the embodiment of the present invention two, the dress are shown It sets and is applied to view networking, the unified mutual core piece 502 of the signal can specifically include with lower module:

Second interface signal receiving module 1001 is sent for receiving the view networking meeting minimum system controller 503 The second interface signal；Wherein, the second interface signal is raw by view networking meeting minimum system controller 503 At；

Second interface signal conversion module 1002, for being converted to and can be integrated by the signal second interface signal The first interface signal that interface 501 identifies；

First interface signal transmitting module 1003, for the first interface signal to be sent to the signal integrated interface 501；The signal integrated interface 501 is used to the first interface signal being forwarded to the view networked devices.

For chromacoder embodiment, since it is substantially similar to interface signal conversion method embodiment, institute To be described relatively simple, related place illustrates referring to the part of interface signal conversion method embodiment.

The embodiment of the invention also provides a kind of devices, comprising:

One or more processors；With

One or more machine readable medias of instruction are stored thereon with, are executed when by one or more of processors When, so that described device executes one or more interface signal conversion methods as described in the embodiments of the present invention.

The embodiment of the invention also provides the computer programs of a kind of computer readable storage medium, storage to handle Device executes interface signal conversion method as described in the embodiments of the present invention.

All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.

It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code The form of the computer program product of implementation.

The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram The device of specified function.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram The function of being specified in frame or multiple boxes.

These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart And/or in one or more blocks of the block diagram specify function the step of.

Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.

Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.

Interface signal conversion method above to a kind of conference terminal provided by the present invention, and based on conference terminal, Device is described in detail, and used herein a specific example illustrates the principle and implementation of the invention, with The explanation of upper embodiment is merely used to help understand method and its core concept of the invention；Meanwhile for the general of this field Technical staff, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion The contents of this specification are not to be construed as limiting the invention.

Claims (10)

1. a kind of conference terminal, which is characterized in that the terminal applies are networked in view, and the view networking includes view networked devices, The terminal includes signal integrated interface, the unified mutual core piece of signal, view networking meeting minimum system controller, in which:

The signal integrated interface, one end are connect depending on networked devices by cable with described, and the other end is unified mutual with the signal The connection of core piece；

The unified mutual core piece of the signal, one end are connect with the signal integrated interface, and the other end and view networking meeting are most The connection of mini system controller, can be by the view for that will be converted to by the first interface signal that the signal integrated interface identifies The second interface signal that meeting minimum system controller of networking identifies, or the second interface signal is converted to described first and is connect Message number；

The view networking meeting minimum system controller, for generating the second interface signal or being believed according to the second interface Number, execute corresponding program.

2. terminal according to claim 1, which is characterized in that when the first interface signal is port physical layer PHY letter Number, when the second interface signal is ethernet address MAC signal；

The unified mutual core piece of the signal includes MAC-PHY submodule；

The MAC-PHY submodule is for being converted to the MAC signal for the PHY signal or being converted to the MAC signal The PHY signal.

3. terminal according to claim 1, which is characterized in that when the first interface signal is that high-definition media interface is defeated Enter HDMI-IN signal, the second interface signal is high-definition television studio signal digital interface BT.1120 signal sum aggregate When at circuit built-in audio bus I2S signal；

The unified mutual core piece of the signal includes minimizing differential signal transmission TMDS-BT.1120 submodule and audio-video separation Submodule；

The TMDS-BT.1120 submodule is used to convert the HDMI-IN signal, and the signal after conversion is transferred to institute State audio-video separation submodule；

The audio-video separation submodule is used for the Signal separator after the conversion into the BT.1120 signal and the I2S Signal.

4. terminal according to claim 1, which is characterized in that when the first interface signal is HDMI-OUT signal, institute State second interface signal be BT.1120 signal and I2S signal when；

The unified mutual core piece of the signal includes BT.1120-TMDS submodule and audio-visual synchronization submodule；

The BT.1120-TMDS submodule is used to convert the BT.1120 signal, and the signal after conversion is transferred to institute State audio-visual synchronization submodule；

The audio-visual synchronization submodule is used for the signal after described convert is synchronous with the I2S signal into the HDMI-OUT Signal.

5. terminal according to claim 1, which is characterized in that when the first interface signal is that input interface or output connect Mouth LINE-IN/OUT signal, when the second interface signal is I2S signal；

The unified mutual core piece of the signal includes sound coder Audio-Codec submodule；

The Audio-Codec submodule is for being converted to the I2S signal for the LINE-IN signal or believing the I2S Number be converted to the LINE-OUT signal.

6. terminal according to claim 1, which is characterized in that when the first interface signal is serial communication interface RS232 signal, when the second interface signal is universal asynchronous receiving-transmitting transmitter UART signal；

The unified mutual core piece of the signal includes UART-RS232 submodule；

The UART-RS232 submodule is used to the RS232 signal be converted to the UART signal or by the UART signal Be converted to the RS232 signal.

7. terminal according to claim 1, which is characterized in that when it is described regard networked devices as the conference terminal when, institute The one end for stating signal integrated interface is connect with described depending on networked devices by single line cable.

8. terminal according to claim 1, which is characterized in that when it is described depending on networked devices include multiple sub- equipment when, institute The one end for stating signal integrated interface is connect with the sub- equipment respectively by more cables.

9. the interface signal conversion method based on terminal described in claim 1, which is characterized in that the method is applied to view connection Net, which comprises

The unified mutual core piece of the signal receives the first interface signal of the signal integrated interface forwarding；Wherein, described First interface signal is generated by the view networked devices；

The first interface signal is converted to the meeting minimum system control that can be networked by the view by the unified mutual core piece of the signal The second interface signal of device identification processed；

The second interface signal is sent to the view networking meeting minimum system controller by the unified mutual core piece of the signal； The view networking meeting minimum system controller is used to execute corresponding program according to the second interface signal.

10. the interface signal conversion method based on terminal described in claim 1, which is characterized in that the method is applied to view connection Net, which comprises

The unified mutual core piece of the signal receives the second interface letter that the view networking meeting minimum system controller is sent Number；Wherein, the second interface signal is generated by view networking meeting minimum system controller；

The second interface signal is converted to the institute that can be identified by the signal integrated interface by the unified mutual core piece of the signal State first interface signal；

The first interface signal is sent to the signal integrated interface by the unified mutual core piece of the signal；The signal is integrated Interface is used to the first interface signal being forwarded to the view networked devices.