CN101800865B - Audio and video receiver - Google Patents
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Abstract
The invention relates to an audio and video receiver with a play terminal. The audio and video receiver comprises a first connection part and a second connection part, wherein the first connection part is connected with a network through a network cable, the second connection part is connected with the play terminal, and the audio and video receiver is connected with an audio and video output device through a two-way data transmission line. The audio and video receiver can receive network data from a network through the network cable and digital data signals from the audio and video output device through the two-way data transmission line, and plays audio and video signals in the digital data signals through the play terminal. The audio and video output device and the network can communicate with each other through the audio and video receiver.
Description
Technical field
The present invention relates to a kind of audio and video receiver, relate in particular to the audio and video receiver that has network interface and bi-directional data interface.
Background technology
Nowadays, along with popularizing of network, many consumer electronics products also have been equipped with network function.Fig. 1 is the formation of existing audio-visual system and the sketch map of connection.In the figure, the audio frequency and video output device is top box of digital machine 110 or DVR 120 etc., is connected in television set through high speed data transmission line 130.
With top box of digital machine 110 is example.The process that the audio frequency and video of traditional broadcast mode are play is: the broadcast singal that top box of digital machine 110 receives from the outside; Then; In top box of digital machine 110; Convert this broadcast singal into digitized data flow by demodulator 111, then convert the audio and video data streams of compression into, convert the audio-video signal of decompression at last by decoder 113 into by demodulation multiplexer 112; Through the high speed digital interface 118 and high speed data transmission line 130 of top box of digital machine 110, audio-video signal is sent to the high speed digital interface 101 of TV 100.High speed digital interface 101,118 for example is HDMI (High Definition Multimedia Interface) interface etc.In the TV 100, display screen 102 constitutes playback terminal with loud speaker 103.Vision signal in the display screen 102 playing audio-video signals realizes the reproduction of video, and simultaneously, loud speaker 103 is the audio signal in the playing audio-video signal synchronously, realizes the reproduction of audio frequency.User interface 116 receives the order from the user, the setting of each module in the control figure STB 110, thus realize various functions, the for example conversion of channel etc.
Top box of digital machine 110 among Fig. 1 also comprises Ethernet processing module 114 and network hardware module (PHY) 115.Wherein, Ethernet processing module 114 is responsible for the processing of Ethernet data bags, for example packing data with unpack etc.; Network hardware module 115 is responsible for the transmission and the reception of network data, comprises the conversion of data-signal, the interpolation of network MAC (MediaAccess Control) address 119 and identification etc.At this, network MAC address 119 is signs of one 48, is used for identifying uniqueness and the legitimacy of this equipment at network, in the process of producing network hardware module, is cured within network hardware module.
When this top box of digital machine 110 received the various content of automatic network, its process was: user interface 116 drives Ethernet processing modules 114, makes it pass through network hardware module 115 certain data, services of Ethernet request to the outside, for example audio/video program etc.When the Ethernet response request, network hardware module 115 receives audio, video data with the form of Ethernet package, it is changed and discerns the back send to Ethernet processing module 114.Ethernet processing module 114 is sent to decoder 113 with audio, video data and decodes after separating package.After decoder 113 is decoded,, be sent to TV 100 and play through high speed digital interface 118 and high speed data transmission line 130.
When the different audio frequency and video output device access external network in the above audio-visual system, exist the problem of legitimacy.For example, be used for protecting the digital copyright management DRM (Digital Right Management) of copyright just progressively being applied to actual audio-visual system.Have only after the content of data has been passed through the authentication of digital copyright management, just can be by correct decoding and broadcast.The key of its authentication is a key, has only as the user to have this key, and the content of data could be play by correct.At present, the someone proposes to use the part of MAC Address as key or key.In this case, because MAC Address is different, thereby the user who has a plurality of audio frequency and video output devices is necessary for each audio frequency and video output device and obtains legitimacy, and is necessary for each audio frequency and video output device payment corresponding cost.Yet for the user, all network applications all finally become the audio frequency and video of on same television terminal, playing, thereby there is no need to pay the expense that a plurality of digital copyright management DRM authorize.
Summary of the invention
The present invention proposes in order to solve above-mentioned problem; Its purpose is; A kind of audio and video receiver that has network interface and bi-directional data interface is provided; This audio and video receiver and a plurality of audio frequency and video output device are shared the same set of network hardware in the audio and video receiver, make all accesses network legally of each audio frequency and video output device.Owing to see from the angle of network, be always same system, thereby for the user, needn't pay corresponding cost respectively for a plurality of audio frequency and video output devices.
Audio frequency and video output device of the present invention is meant the fore device that is connected with audio and video receiver, and it has following characteristic:
(1) has bi-directional data interface at a high speed, can be used for transmitting network data;
(2) device interior has network process module, can carry out encoding and decoding to network data;
(3) can handle data from the outside, and finally with the form of audio frequency, video and picture through the outside dateout of bi-directional data interface.
The audio and video receiver with playback terminal that the present invention relates to is characterised in that above-mentioned audio and video receiver possesses first connecting portion and second connecting portion; Above-mentioned first connecting portion is connected in network through netting twine; Above-mentioned second connecting portion is connected with above-mentioned playback terminal, and, be connected with the audio frequency and video output device through the bidirectional data transfers line; Above-mentioned audio and video receiver; Receive from the network of network data through netting twine; And, receive digital data signal through above-mentioned bidirectional data transfers line from above-mentioned audio frequency and video output device, utilize above-mentioned playback terminal to play the audio-video signal in the above-mentioned digital data signal; Between above-mentioned audio frequency and video output device and the above-mentioned network, can communicate through above-mentioned audio and video receiver.
Above-mentioned second connecting portion sends the network requests data in the above-mentioned digital data signal through above-mentioned first connecting portion to above-mentioned network, and, send network data through the above-mentioned audio frequency and video output device of above-mentioned bidirectional data transfers alignment.
Owing among the present invention, between above-mentioned audio frequency and video output device and the above-mentioned network, can communicate through above-mentioned audio and video receiver; Thereby; Using under the situation of MAC Address as the part of key or key, no matter which kind of audio frequency and video output device the front end of audio and video receiver be, use per family need for a MAC Address (promptly; The MAC Address of audio and video receiver) payment corresponding cost and obtain legitimacy, and needn't pay one by one according to the quantity of audio frequency and video output device.
Above-mentioned audio and video receiver also possesses network hardware module and interface processing module; Above-mentioned network hardware module is connected in above-mentioned first connecting portion, sends above-mentioned network requests data through above-mentioned first connecting portion to above-mentioned network, and receives the network data from above-mentioned first connecting portion; Above-mentioned interface processing module is connected between above-mentioned network hardware module and above-mentioned second connecting portion; Reception is carried out predetermined process from the network data of above-mentioned network hardware module to this network data, sends to above-mentioned second connecting portion; And; Reception is carried out predetermined process from the network requests data of above-mentioned second connecting portion to these network requests data, sends to above-mentioned network hardware module.
Above-mentioned audio and video receiver also possesses handover module.At this moment; Above-mentioned handover module is connected with above-mentioned network hardware module, above-mentioned interface processing module and above-mentioned network process module; And; Switch, thereby above-mentioned interface processing module is connected with above-mentioned network hardware module, perhaps above-mentioned network process module is connected with above-mentioned network hardware module; Above-mentioned interface processing module is connected between above-mentioned handover module and above-mentioned second connecting portion; When above-mentioned handover module is connected above-mentioned interface processing module with above-mentioned network hardware module; Above-mentioned interface processing module receives the network data from above-mentioned network hardware module through above-mentioned handover module, this network data is carried out predetermined process after, send to above-mentioned second connecting portion; And; Reception is from the network requests data of above-mentioned second connecting portion, these network requests data are carried out predetermined process after, send to above-mentioned network hardware module through above-mentioned handover module; Above-mentioned network process module is connected between above-mentioned handover module and the above-mentioned playback terminal; When above-mentioned handover module is connected above-mentioned network process module with above-mentioned network hardware module; Above-mentioned network process module receives the network data from above-mentioned network hardware module through above-mentioned handover module; After this network data carried out predetermined process, send to above-mentioned playback terminal.Because audio and video receiver possesses handover module and sensing module, thereby network process module and interface processing module can the shared network hardware modules.The user has just realized audio and video receiver and audio frequency and video output device accesses network respectively only being a MAC Address (that is, the MAC Address of audio and video receiver) payment corresponding cost and obtaining under the situation of legitimacy.
Above-mentioned audio and video receiver also possesses sensing module.At this moment, above-mentioned sensing module sends switching command to above-mentioned handover module, and above-mentioned handover module switches according to above-mentioned switching command.
Above-mentioned sensing module can be positioned at above-mentioned second connecting portion; Detection is connected in the state variation of the above-mentioned audio frequency and video output device of above-mentioned second connecting portion through above-mentioned bidirectional data transfers line; After detecting this state variation, send above-mentioned switching command to above-mentioned handover module.In this case, if the state variation of above-mentioned audio frequency and video output device has then automatically realized switching, need not extra operation.
After having set up connection between above-mentioned audio and video receiver and the above-mentioned audio frequency and video output device, above-mentioned handover module switches, and above-mentioned interface processing module is connected with above-mentioned network hardware module.In this case, the connection between device and harmonious all the time with being connected of network prevents normal with being connected of network and malunion between device is normal, thus cause can not accesses network situation.
Above-mentioned audio and video receiver also possesses the first detection module and second detection module; Above-mentioned first detection module is between above-mentioned interface processing module and above-mentioned handover module; After the network requests data that detect from above-mentioned interface processing module; Control above-mentioned handover module and switch, thereby above-mentioned interface processing module is connected with above-mentioned network hardware module; Above-mentioned second detection module is between above-mentioned network process module and above-mentioned handover module; After the network requests data that detect from above-mentioned network process module; Control above-mentioned handover module and switch, thereby above-mentioned network process module is connected with above-mentioned network hardware module.In this case, utilize the network requests data self to realize switching, that is, the switching of handover module is a foundation with the network requests data of the internal module that comes from audio and video receiver.
Above-mentioned handover module can also be connected above-mentioned interface processing module with above-mentioned network process module.In this case, can reduce the delay of data forwarding, these delays comprise being written into of 32 IP addresses and more spent time.Carry out in the network connection of cascade at the bi-directional data interface, because network data needs repeatedly forwarding, thereby the delay that reduces is more obvious.
Above-mentioned handover module can switch according to the instruction of user's input.In this case, in the automation of the equipment of assurance, in the time of the convenience of use, can the maximum degree of freedom be provided to the user, and the user can be switched at any time.
Above-mentioned second connecting portion can be for a plurality of.At this moment; Above-mentioned audio and video receiver also possesses the selection module; This selection module is connected between the playback terminal of a plurality of above-mentioned second connecting portions and above-mentioned audio and video receiver; Among a plurality of above-mentioned second connecting portions, select some above-mentioned second connecting portions, and will be sent to above-mentioned playback terminal from the audio-video signal of this above-mentioned second connecting portion.In this case; Because a plurality of video output devices are connected in same audio and video receiver simultaneously; Avoided once can only connecting the inconvenience of a video output device; And a plurality of audio frequency and video output devices that are connected in same audio and video receiver can be distinguished accesses network, thereby have using value widely.
Above-mentioned second connecting portion can be a kind of among DIVA, the HDMI.
Above-mentioned network can be a kind of in Ethernet, the ATM net.
Above-mentioned audio frequency and video output device can be at least a in top box of digital machine, video disc player, DVR, video camera and the game machine.
Description of drawings
Fig. 1 is the formation of existing audio-visual system and the sketch map of connection.
Fig. 2 is the interface of audio-visual system of the present invention and the sketch map of connection.
Fig. 3 is the formation and the sketch map that is connected of the audio frequency and video output device and the audio and video receiver of first execution mode of the present invention.
Fig. 4 is that the auxiliary data interface of first execution mode of the present invention is handled inside modules structure and link sketch map.
Fig. 5 is the formation sketch map of the audio and video receiver of second execution mode of the present invention.
Fig. 6 is the formation sketch map of the audio and video receiver of the 3rd execution mode of the present invention.
Fig. 7 is the formation sketch map of the audio and video receiver of the 4th execution mode of the present invention.
Fig. 8 is the formation sketch map of the audio and video receiver of the 5th execution mode of the present invention.
Fig. 9 is the formation sketch map of the audio and video receiver of the 6th execution mode of the present invention.
Figure 10 is the layer of structure figure that high speed digital interface transmits that passes through of the 6th execution mode of the present invention.Wherein, figure (a) is existing structure chart, and figure b is the structure chart of the 6th execution mode.
Figure 11 is the flow chart that switches according to the IP address of the 6th execution mode of the present invention.Wherein, figure (a) is existing flow chart, and figure (b) is the flow chart of the 6th execution mode.
Figure 12 is the formation sketch map of the audio and video receiver of the 7th execution mode of the present invention.
Figure 13 is the formation sketch map of the audio and video receiver of the 8th execution mode of the present invention.
Figure 14 is the formation sketch map of the audio and video receiver of the 9th execution mode of the present invention.
Embodiment
As shown in Figure 2, audio and video receiver 201 possesses bi-directional data interface 202 (second connecting portion) and network interface 203 (first connecting portion).Bi-directional data interface 202 is connected with audio and video receiver 201 interior playback terminals, and, be connected with audio frequency and video output device 204 through bidirectional data transfers line 206.Network interface 203 is connected in the network switch 205 (that is external network) through netting twine 207.
Audio and video receiver 201 is through the network data of netting twine 207 receptions from the network switch 205.And audio and video receiver 201 utilizes its inner playback terminal to play the audio-video signal in the digital data signal through the digital data signal that bidirectional data transfers line 206 receives from audio frequency and video output device 204.
Audio frequency and video output device 204 is a kind of in top box of digital machine, video disc player, DVR, video camera and the game machine.Between the audio frequency and video output device 204 and the network switch 205, can communicate through audio and video receiver 201.Therefore; Bi-directional data interface 202 is behind the digital data signal that receives from audio frequency and video output device 204; Network requests data packaged in the digital data signal is handled the back sends to the network switch 205 through network interface 203; And, the network data of sending automatic network switch 205 through bidirectional data transfers line 206 to audio frequency and video output device 204.
Because between the audio frequency and video output device 204 and the network switch 205; Can communicate through audio and video receiver 201, thereby, using under the situation of MAC Address as the part of key or key; No matter which kind of audio frequency and video output device the front end of audio and video receiver is; Use per family and only need and obtain legitimacy, and needn't pay one by one according to the quantity of audio frequency and video output device for a MAC Address (that is, the MAC Address of audio and video receiver 201) payment corresponding cost.
Below, first execution mode of the present invention is described.
Fig. 3 is the formation and the sketch map that is connected of the audio frequency and video output device and the audio and video receiver of the 1st execution mode of the present invention.As shown in Figure 3, audio and video receiver 300 links to each other with audio frequency and video output device 310 through bidirectional data transfers line 330, perhaps links to each other with audio frequency and video output device 320 through bidirectional data transfers line 330.In this execution mode, audio frequency and video output device 310 is a top box of digital machine, and audio frequency and video output device 320 is a DVR.
Audio and video receiver 300 possesses bi-directional data interface 301, playback terminal 302, interface processing module 303, network hardware module 304 and network interface 305.In this execution mode, bi-directional data interface 301 is DIVA (Digital Interface for Video & Audio) interface.The DIVA interface is the standard interface of unidirectional non-compression audio frequency and video transmission of providing of a kind of high speed and the communication of two-way auxiliary data, and data that can the multiple different-format of transmitted in both directions are mainly formulated and promoted by some domestic television manufacturers of China.Playback terminal 302 is connected with bi-directional data interface 301, is used for playing the audio-video signal from the digital data signal of audio frequency and video output device 310 or 320.Playback terminal 302 is made up of display screen and loud speaker, and display screen is used for the vision signal of playing audio-video signal, realizes the reproduction of video, and loud speaker is used for the synchronously audio signal of playing audio-video signal, realizes the reproduction of audio frequency.Interface processing module 303 is connected between bi-directional data interface 301 and the network hardware module 304, is used for data multiplexing or demultiplexing.Network interface 305 in this execution mode, is connected in Ethernet through netting twine.Network hardware module 304 is connected between interface processing module 303 and the network interface 305; Send the network requests data in the digital data signal of audio frequency and video output device 310 or 320 through network interface 305 to Ethernet, receive network data from network interface 305.
Different with the general TV that possesses the bi-directional data interface, in this execution mode, increased the network hardware module 304 and network interface 305 that is used to visit Ethernet in the inside of audio and video receiver 300.Therefore; As long as audio frequency and video output device 310 or 320 is connected in audio and video receiver 300 through bidirectional data transfers line 330 respectively; Just can realize audio frequency and video output device 310 or 320 shared network hardware modules 304 and network interface 305, reach the purpose of accesses network respectively.The user only need pay corresponding cost and obtain legitimacy for the MAC Address of audio and video receiver 300, pays and needn't be respectively audio frequency and video output device 310 and 320.
The bi-directional data interface 301 of this execution mode can be realized the data communication between audio and video receiver 300 and audio frequency and video output device 310 or 320, general paired appearance.In this execution mode, what occur in pairs with bi-directional data interface 301 is the bi-directional data interface 311 of audio frequency and video output device 310 or the bi-directional data interface 321 of audio frequency and video output device 320.
With audio frequency and video output device 310 is example, and the process of between bi-directional data interface 301 and bi-directional data interface 311, carrying out bidirectional data transfers at length is described.Fig. 4 is interface processing module 303 and the interface processing module 313 of audio frequency and video output device 310 and the sketch map of formation on every side thereof of audio and video receiver 300.As shown in Figure 4; Interface processing module 303 mainly comprises signal transmitting and receiving module 401, Manchester II decoder module 402, DIVA data parse module 403, auxiliary data demultiplexing module 404, auxiliary data Multiplexing module 405, DIVA data packet module 406 and Manchester II coding module 407, and interface processing module 313 mainly comprises signal transmitting and receiving module 411, Manchester II decoder module 412, DIVA data parse module 413, auxiliary data demultiplexing module 414, auxiliary data Multiplexing module 415, DIVA data packet module 416 and Manchester II coding module 417.
When audio frequency and video output device 310 when audio and video receiver 300 sends the Ethernet request msgs; Ethernet processing module 312 is sent to auxiliary data Multiplexing module 415 with the Ethernet request msg through system bus; In this auxiliary data Multiplexing module 415, the data of Ethernet request msg and other types, for example compressed video data etc. is multiplexing; Through before each data, adding condition code, various data are merged the new data flow of formation.This data flow is sent to DIVA data packet module 416, is more suitable for the transmission of DIVA interface mode in order to make data flow, and data flow is divided into packet one by one in DIVA data packet module 416.Packet after handling through package is sent to Manchester II encoder 417, and this Manchester II encoder 417 makes packet meet the requirement of transmission through the method that adds error checking and correction sign indicating number etc., guarantees the correctness and the restorability of transfer of data.At last, through the packet behind the coding, in signal transmitting and receiving module 411, be converted into actual differential signal, and be sent to the bi-directional data interface 301 of audio and video receiver 300 through bidirectional data transfers line 330.
When the signal transmitting and receiving module 401 of the interface processing module 303 of audio and video receiver 300 detects the differential signal from bidirectional data transfers line 330, this differential signal is converted into packet with Manchester's code II form.Institute's data converted encapsulates and is sent to Manchester II decoder module 402, in this Manchester II decoder module 402, packet is carried out verification and error correction.The data converted of carrying out verification encapsulates sends DIVA data parse module 403, is unpacked, thereby reverts to continuous data flow.This data flow flows to auxiliary data demultiplexing module 404; In this auxiliary data demultiplexing module 404; According to attribute byte (condition code), thereby data flow is divided into data of different types, and send it to corresponding module; In this execution mode, the Ethernet request msg is sent to network hardware module 304.Network hardware module 304 adds particular mac address before this Ethernet request msg, form packet, and be converted into ethernet signal, sends through network interface 305.
More than, audio frequency and video output device 310 has been described through the process of bi-directional data interface 311 to Ethernet transmission Ethernet request msg.In contrast, audio frequency and video output device 310 is opposite fully from the process that Ethernet receives Ethernet data through bi-directional data interface 311.
When the Ethernet response request, network interface 305 will convert Ethernet data into from the ethernet signal of Ethernet, and send it to network hardware module 304.Network hardware module 304 is sent to auxiliary data Multiplexing module 405 with Ethernet data through system bus; In this auxiliary data Multiplexing module 405; The data of Ethernet data and other types; For example compressed video data etc. is multiplexing, through before each data, adding condition code, various data are merged forms new data flow.This data flow is sent to DIVA data packet module 406, is more suitable for the transmission of DIVA interface mode in order to make data flow, and data flow is divided into packet one by one in DIVA data packet module 406.Packet after handling through package is sent to Manchester II encoder 407, and this Manchester II encoder 407 makes packet meet the requirement of transmission through the method that adds error checking and correction sign indicating number etc., guarantees the correctness of transfer of data.At last, through the packet behind the coding, in signal transmitting and receiving module 401, be converted into actual differential signal, and be sent to the bi-directional data interface 311 of audio frequency and video output device 310 through bidirectional data transfers line 330.
When the signal transmitting and receiving module 411 of the interface processing module 313 of audio frequency and video output device 310 detects the differential signal from bidirectional data transfers line 330, this differential signal is converted into packet with Manchester's code II form.Institute's data converted encapsulates and is sent to Manchester II decoder module 412, in this Manchester II decoder module 412, packet is carried out verification and error correction.The data converted of carrying out verification encapsulates sends DIVA data parse module 413, is unpacked, thereby reverts to continuous data flow.This data flow flows to auxiliary data demultiplexing module 414; In this auxiliary data demultiplexing module 414; According to attribute byte (condition code), thereby data flow is divided into data of different types, and send it to corresponding module; In this execution mode, Ethernet data is sent to Ethernet processing module 312.
Below, second execution mode of the present invention is described.
In some cases, the audio and video receiver in first execution mode self also might need the outside Ethernet of visit, for example, and when audio and video receiver is the IPTV all-in-one.Therefore, in audio and video receiver, also might there be the Ethernet processing module.At this moment, need a handover module between interface processing module and Ethernet processing module, to switch.
Fig. 5 is the formation sketch map of the audio and video receiver of second execution mode of the present invention.As shown in Figure 5, audio and video receiver 500 also possesses Ethernet processing module 506 and handover module 507 except possessing bi-directional data interface 501, playback terminal 502, interface processing module 503, network hardware module 504 and network interface 505.Wherein, the function of bi-directional data interface 501, playback terminal 502, interface processing module 503, network hardware module 504 and network interface 505 is identical with first execution mode.
When handover module 507 is connected interface processing module 503 with network hardware module 504; The network data that interface processing module 503 receives from network hardware module 504 through handover module 507, this network data carried out above-mentioned processing after, send to bi-directional data interface 501; And; Reception is from the network requests data of bi-directional data interface 501, these network requests data are carried out above-mentioned processing after, send to network hardware module 504 through handover module 507.
When handover module 507 is connected Ethernet processing module 506 with network hardware module 504; The network data that Ethernet processing module 506 receives from network hardware module 504 through handover module 507; After this network data carried out predetermined process, send to playback terminal 502.
In addition, the handover operation of handover module 507 can be by sensing module 508 controls.Sensing module 508 sends switching command to handover module 507 when detecting transducing signal.Handover module 507 switches after receiving this switching command, thereby is communicated with a link, breaks off another link.The switching command of control handover module 507 can be various signals, level high-low signal for example, the matched signal of particular data position etc.Transducing signal is diversified, after the execution mode stated the transducing signal that various initiations are switched will be described in more detail.
In this execution mode, because audio and video receiver 500 possesses handover module 507 and sensing module 508, thereby Ethernet processing module 506 can shared network hardware module 504 with interface processing module 503.The user has just realized audio and video receiver and audio frequency and video output device accesses network respectively only being a MAC Address (that is, the MAC Address of audio and video receiver 500) payment corresponding cost and obtaining under the situation of legitimacy.
Below, the 3rd execution mode of the present invention is described.In this execution mode, switch and trigger by the hot plug on the bi-directional data interface.
Fig. 6 is the formation sketch map of the audio and video receiver of the 3rd execution mode of the present invention.As shown in Figure 6, audio and video receiver 600 possesses bi-directional data interface 601, playback terminal 602, interface processing module 603, network hardware module 604, network interface 605, Ethernet processing module 606, handover module 607 and sensing module 608.Wherein, the function of bi-directional data interface 601, playback terminal 602, interface processing module 603, network hardware module 604, network interface 605, Ethernet processing module 606 and handover module 607 is identical with second execution mode.Different with second execution mode is that sensing module 608 is arranged in bi-directional data interface 601.
When the audio frequency and video output device insert/when extracting, the curtage on one or more pins of bi-directional data interface 601 changes, this changes by sensing module 608 and detects, thereby confirms to take place hot plug.When sensing module 608 is confirmed on bi-directional data interface 601, to be inserted with the audio frequency and video output device, send switching command to handover module 607.Handover module 607 is connected interface processing module 603 according to this switching command with network hardware module 604, automatically realize communicating by letter of audio frequency and video output device and Ethernet.
In this execution mode, when user's hot plug audio frequency and video output device, automatically realize switching, need not extra operation.Therefore, the hot plug detection method that adopted in this execution mode provides the connected mode between the audio frequency and video output device and Ethernet simply and easily for the user.
Below, the 4th execution mode of the present invention is described.In this execution mode, switch by the completion signal triggering of shaking hands between audio frequency and video output device and the audio and video receiver.
Connection between device is common and its JA(junction ambient) is closely related, and for example the length difference of connecting line possibly cause the transmittability of this connection different, in order to set up and to confirm stable connection, adopts handshake mechanism between device usually.
Fig. 7 is the formation sketch map of the audio and video receiver of the 4th execution mode of the present invention.As shown in Figure 7, audio and video receiver 700 possesses bi-directional data interface 701, playback terminal 702, interface processing module 703, network hardware module 704, network interface 705, Ethernet processing module 706 and handover module 707.Wherein, the function of bi-directional data interface 701, playback terminal 702, interface processing module 703, network hardware module 704, network interface 705, Ethernet processing module 706 and handover module 707 is identical with second execution mode.
The main process of shaking hands is following; The audio frequency and video output device (not shown) that is connected in audio and video receiver 700 through the bidirectional data transfers line is sent a connection request signal to audio and video receiver 700; After this audio and video receiver 700 receives this connection request signal; Start inner interface processing module 703; It is in normally receives and dispatches the also operating state of deal with data, feed back to the audio frequency and video output device then.The audio frequency and video output device receives after the feedback signal from audio and video receiver 700, and this completion signal 708 of shaking hands that connects formal startup sends to audio and video receiver 700 the most at last.So far, the stable connection between two devices is accomplished, and data can stably be transmitted mutually between both sides.At this moment, handover module 707 switches, and interface processing module 703 is connected with network hardware module 704.
The foundation of physical link has not only been represented in the completion of this handshake procedure, has also represented the foundation of logical links simultaneously, is a prerequisite of stable data communication, has great importance.If utilizing shakes hands accomplishes signal 708 and trigger handover module 707, so, when the connection between device was stably set up, the data link that is used to visit Ethernet is automatic switching on also.Therefore; This execution mode provides a kind of method of utilizing signal to control handover module more accurately; Make connection between device and harmonious all the time with being connected of Ethernet; Prevent normal and malunion between device is normal, thereby cause to visit the situation of Ethernet with being connected of Ethernet.
Below, the 5th execution mode of the present invention is described.
Whether in the 3rd, the 4th execution mode, it is foundation that the switching of handover module detects conclusion with certain of bi-directional data interface, and exist the Ethernet request msg irrelevant.For example, when the audio frequency and video output device that is connected in audio and video receiver through the bidirectional data transfers line was not visited the needs of Ethernet or need not be visited Ethernet in most of the time, the method for above-mentioned automatic switchover was just no longer suitable.In this execution mode, in order to address the above problem, utilize the Ethernet request msg self to realize switching, that is, the switching of handover module is a foundation with the Ethernet request msg of the internal module that comes from audio and video receiver.
Fig. 8 is the formation sketch map of the audio and video receiver of the 5th execution mode of the present invention.As shown in Figure 8; Audio and video receiver 800 also possesses detection module 808 (first detection module) and detection module 809 (second detection module) except possessing bi-directional data interface 801, playback terminal 802, interface processing module 803, network hardware module 804, network interface 805, Ethernet processing module 806 and handover module 807.Wherein, the function of bi-directional data interface 801, playback terminal 802, interface processing module 803, network hardware module 804, network interface 805, Ethernet processing module 806 and handover module 807 is identical with second execution mode.
In the DIVA standard, the DIVA data that comprise the Ethernet request msg have the identifier different with other DIVA data, and therefore, detection module 808 just can be confirmed the request of the visit Ethernet of interface processing module 803 through detecting identifier.
The detection method of detection module 809 is different with the detection method of detection module 808.In Ethernet processing module 806, data must be processes according to the ICP/IP protocol packing, and therefore, detection module 809 just can be confirmed the request of the visit Ethernet of Ethernet processing module 806 as long as detect whether packing data is arranged.
In this execution mode, realize switching through detecting the Ethernet request msg, with the Ethernet request msg as foundation.This flexible method is efficient, has higher validity.And, in this execution mode, connect all the time under the situation of (foundation) at link, also can judge the selection of link.
Below, the 6th execution mode of the present invention is described.In this execution mode, switching command is from the address in the packet of bi-directional data interface.
Fig. 9 is the formation sketch map of the audio and video receiver of the 6th execution mode of the present invention.As shown in Figure 9, audio and video receiver 900 possesses bi-directional data interface 901, playback terminal 902, interface processing module 903, network hardware module 904, network interface 905, Ethernet processing module 906 and handover module 907.Wherein, the function of bi-directional data interface 901, playback terminal 902, interface processing module 903, network hardware module 904, network interface 905 and Ethernet processing module 906 is identical with second execution mode.Different with above-mentioned execution mode is that in this execution mode, handover module 907 is multidirectional switches; It can connect any two ports; Play the effect that is similar to Ethernet switch, that is, handover module 907 is except being connected interface processing module 903 with network hardware module 904; Perhaps with Ethernet processing module 906 with outside network hardware module 904 is connected, can also interface processing module 903 be connected with Ethernet processing module 906.
General handoff procedure is: after receiving the data that contain the IP address, resolution data obtains IP address wherein, the corresponding relation of this IP address and each port relatively, thus can access corresponding link.If the IP address is corresponding to the address of Ethernet processing module 906, then handover module 907 switches, and interface processing module 903 is connected with Ethernet processing module 906.
Transmit the process of Ethernet request msg through bi-directional data interface 901 and abide by the structure shown in Figure 10 (a).The Ethernet request msg is split into some packets, transmits with the mode of auxiliary data.At receiving terminal, after receiving all packets, this packet is by reconstruct.Figure 11 (a) has shown that audio and video receiver 900 receives and transmit the process of Ethernet request msg through bi-directional data interface 901.All sequence of steps among the figure are carried out.
In this execution mode, further improved the process that the Ethernet request msg is transmitted, shown in Figure 10 (b), the IP address in the Ethernet request msg has been copied in the bi-directional data interface data bag of bottom.When containing this IP address 1001 in the bi-directional data interface data bag, receiving terminal can just can obtain this IP address 1001 when receiving first bi-directional data interface data bag.So audio and video receiver 900 passes through the process of 901 receptions of bi-directional data interface and forwarding Ethernet request msg shown in Figure 11 (b).As can be seen from the figure, the switching 1102 of the buffer memory 1101 of Ethernet request msg and link can be carried out simultaneously.Thereby the forwarding time of having saved the Ethernet request msg of device inside postpones, and has accelerated the speed of other mixed-media network modules mixed-medias of audio frequency and video dispensing device visit.
In addition, IP address 1001 not necessarily is contained in first bi-directional data interface data bag, also can be contained in second, third or other the bi-directional data interface data bag.
Through the said method of this execution mode, can reduce the delay of data forwarding, these delays comprise being written into of 32 IP addresses and more spent time.Carry out in the network connection of cascade at the bi-directional data interface, because network data needs repeatedly forwarding, thereby the delay that reduces is more obvious.
Below, the 7th execution mode of the present invention is described.
In the above-described embodiment, switching is triggered by transducing signal automatically.Yet in the application of reality, handover module also can switch according to the instruction that the user manually imports.
Figure 12 is the formation sketch map of the audio and video receiver of the 7th execution mode of the present invention.Shown in figure 12, audio and video receiver 1200 possesses bi-directional data interface 1201, playback terminal 1202, interface processing module 1203, network hardware module 1204, network interface 1205, Ethernet processing module 1206, handover module 1207 and sensing module 1208.Wherein, the function of bi-directional data interface 1201, playback terminal 1202, interface processing module 1203, network hardware module 1204, network interface 1205, Ethernet processing module 1206, handover module 1207 and sensing module 1208 is identical with second execution mode.Different with above-mentioned execution mode is that audio and video receiver 1200 also possesses diverter switch 1209.This diverter switch 1209 is used between sensing module 1208 and input equipment 1210, switching.Input equipment 1210 for example is a remote controller etc.When the user needed the manual switchover link, the user can utilize input equipment 1210 to send instruction to audio and video receiver 1200.Diverter switch 1209 is switched after receiving this instruction, thereby makes handover module 1208 controlled by the user.Then, the user utilizes input unit further to trigger handover module 1208, thereby selects and handoff links.
In this execution mode, guaranteeing equipment automatization, in the time of easy-to-use, can the maximum degree of freedom be provided to the user, and the user can switched at any time.
Below, the 8th execution mode of the present invention is described.
In the above-described embodiment, all only relate to single interface processing module and the switching between the Ethernet processing module.Yet, in the application of reality, have a plurality of audio frequency and video output devices to be connected in same audio and video receiver usually.
Figure 13 is the formation sketch map of the audio and video receiver of the 8th execution mode of the present invention.Shown in figure 13, audio and video receiver 1300 possesses bi-directional data interface 1301, bi-directional data interface 1302, selects module 1303, playback terminal 1304, interface processing module 1305, interface processing module 1306, network hardware module 1307, network interface 1308, Ethernet processing module 1309, handover module 1310 and sensing module 1311.Wherein, the function of bi-directional data interface 1301, bi-directional data interface 1302, playback terminal 1304, interface processing module 1305, interface processing module 1306, network hardware module 1307, network interface 1308, Ethernet processing module 1309 and sensing module 1311 is identical with second execution mode.
Two bi-directional data interfaces 1301 and 1302; Different with two respectively audio frequency and video output devices connects; And be connected in playback terminal 1303 through the selection module 1303 of a multiselect one; This selects module 1303 by user's control, thereby makes playback terminal play from the audio-video signal in the digital data signal of bi-directional data interface 1301 or from the audio-video signal in the digital data signal of bi-directional data interface 1302.Interface processing module 1305 is connected in bi-directional data interface 1301, and interface processing module 1306 is connected in bi-directional data interface 1302.
In this execution mode; Because a plurality of video output devices are connected in same audio and video receiver simultaneously; Avoided once can only connecting the inconvenience of a video output device; And a plurality of audio frequency and video output devices that are connected in same audio and video receiver can be visited Ethernet respectively, thereby have using value widely.
In addition, in this execution mode, though have only two bi-directional data interfaces 1301 and 1302 and two interface processing modules 1305 and 1306, bi-directional data interface and interface processing module all are not limited to two, also can be for more than three.
Below, the 9th execution mode of the present invention is described.
In the above-described embodiment, network is Ethernet.But network is not limited to Ethernet, also can be for having other networks of two-way interactive ability, and ATM network (ATM) for example.
Figure 14 is the formation sketch map of the audio and video receiver of the 9th execution mode of the present invention.Shown in figure 14, audio and video receiver 1400 possesses bi-directional data interface 1401, playback terminal 1402, interface processing module 1403, ATM adaptation module 1404, network interface 1405, atm network processing module 1406, handover module 1407 and sensing module 1408.Wherein, the function of bi-directional data interface 1401, playback terminal 1402, interface processing module 1403, network interface 1405, handover module 1407 and sensing module 1408 is identical with second execution mode.Different with above-mentioned execution mode is, in this execution mode, has replaced network hardware module with ATM adaptation module 1404, has replaced the Ethernet processing module in the audio and video receiver with atm network processing module 1406.
More than execution mode of the present invention has been carried out detailed explanation.Can know that from detailed description of the present invention the present invention can do the variation of multiple mode, also can a plurality of execution modes be combined application.For example, in the above-described embodiment, audio and video receiver also can link to each other with a plurality of audio frequency and video output devices simultaneously.In addition, in the 8th execution mode, can remove Ethernet processing module 1309, perhaps, also can between each interface processing module and handover module and between Ethernet processing module and the handover module, the detection module in the 5th execution mode be set.These variations can not be regarded as and exceed aim of the present invention and scope, and these are that obviously modification all is comprised in the scope of claim of the present invention for a person skilled in the art.
Claims (25)
1. the audio and video receiver with playback terminal is characterized in that,
Said audio and video receiver possesses first connecting portion and second connecting portion,
Said first connecting portion is connected in network through netting twine,
Said second connecting portion is connected with said playback terminal, and, be connected with the audio frequency and video output device through the bidirectional data transfers line,
Said audio and video receiver; Receive from the network of network data through netting twine, and, digital data signal received through said bidirectional data transfers line from said audio frequency and video output device; Utilize said playback terminal to play the audio-video signal in the said digital data signal
Between said audio frequency and video output device and the said network, can communicate through said audio and video receiver,
Said audio and video receiver also possesses network hardware module and interface processing module,
Said network hardware module is connected in said first connecting portion, sends said network requests data through said first connecting portion to said network, and receives the network data from said first connecting portion,
Said interface processing module is connected between said network hardware module and said second connecting portion; Reception is carried out predetermined process from the network data of said network hardware module to this network data, sends to said second connecting portion; And; Reception is carried out predetermined process from the network requests data of said second connecting portion to these network requests data, sends to said network hardware module.
2. audio and video receiver as claimed in claim 1 is characterized in that,
Said second connecting portion sends the network requests data in the said digital data signal through said first connecting portion to said network, and, send network data through the said audio frequency and video output device of said bidirectional data transfers alignment.
3. audio and video receiver as claimed in claim 2 is characterized in that,
Said second connecting portion is a plurality of,
Said audio and video receiver also possesses the selection module,
Said selection module is connected between the playback terminal of a plurality of said second connecting portions and said audio and video receiver; Among a plurality of said second connecting portions, select some said second connecting portions, and will be sent to said playback terminal from the audio-video signal of this said second connecting portion.
4. audio and video receiver as claimed in claim 3 is characterized in that,
Said audio and video receiver also possesses handover module, network hardware module and a plurality of interface processing module,
Said network hardware module is connected in said first connecting portion, sends said network requests data through said first connecting portion to said network, and receives the network data from said first connecting portion,
A plurality of said second connecting portions are connected with a plurality of said interface processing modules correspondingly,
Said handover module is connected between said network hardware module and a plurality of said interface processing module, and, switch, thereby certain said interface processing module be connected with said network hardware module,
Each said interface processing module is connected between said second connecting portion of said handover module and correspondence; When said handover module is connected certain said interface processing module with said network hardware module; This said interface processing module receives the network data from said network hardware module through said handover module, this network data is carried out predetermined process after, send to said second connecting portion of correspondence; And; Receive the network requests data of self-corresponding said second connecting portion, these network requests data are carried out predetermined process after, send to said network hardware module through said handover module.
5. audio and video receiver as claimed in claim 4 is characterized in that,
Said audio and video receiver also possesses handover module, network hardware module, network process module and a plurality of interface processing module,
Said network hardware module is connected in said first connecting portion, sends said network requests data through said first connecting portion to said network, and receives the network data from said first connecting portion,
A plurality of said second connecting portions are connected with a plurality of said interface processing modules correspondingly,
Said handover module is connected with said network hardware module, a plurality of said interface processing modules and said network process module; And; Switch; Thereby certain said interface processing module is connected with said network hardware module, perhaps said network process module is connected with said network hardware module
Each said interface processing module is connected between said second connecting portion of said handover module and correspondence; When said handover module was connected certain said interface processing module with said network hardware module, this said interface processing module received the network data from said network hardware module through said handover module, this network data is carried out predetermined process after; Said second connecting portion to correspondence sends; And, the network requests data of receive self-corresponding said second connecting portion, these network requests data are carried out predetermined process after; Send to said network hardware module through said handover module
Said network process module is connected between the playback terminal of said handover module and said audio and video receiver; When said handover module is connected said network process module with said network hardware module; Said network process module receives the network data from said network hardware module through said handover module; After this network data carried out predetermined process, send to the playback terminal of said audio and video receiver.
6. like claim 4 or 5 described audio and video receivers, it is characterized in that,
Said audio and video receiver also possesses sensing module,
Said sensing module sends switching command to said handover module, and said handover module switches according to said switching command.
7. audio and video receiver as claimed in claim 6 is characterized in that,
Said sensing module is positioned among certain said second connecting portion; Detection is connected in the state variation of the said audio frequency and video output device of this second connecting portion through said bilateral network data line; After detecting this state variation, send said switching command to said handover module.
8. like claim 4 or 5 described audio and video receivers, it is characterized in that,
When set up between said audio and video receiver and the said audio frequency and video output device connect after, said handover module switches, and the said interface processing module of correspondence is connected with said network hardware module.
9. audio and video receiver as claimed in claim 5 is characterized in that,
Said audio and video receiver also possesses a plurality of first detection modules and second detection module,
A plurality of said first detection modules lay respectively between the corresponding said interface processing module and said handover module; After the network requests data that detect self-corresponding said interface processing module; Controlling said handover module switches; Thereby the said interface processing module of correspondence is connected with said network hardware module
Said second detection module is between said network process module and said handover module; After the network requests data that detect from said network process module; Control said handover module and switch, thereby said network process module is connected with said network hardware module.
10. like claim 4 or 5 described audio and video receivers, it is characterized in that,
Said handover module switches according to the instruction of user's input.
11. audio and video receiver as claimed in claim 1 is characterized in that,
Said second connecting portion is a kind of among DIVA, the HDMI.
12. audio and video receiver as claimed in claim 1 is characterized in that,
Said network is a kind of in Ethernet, the ATM net.
13. audio and video receiver as claimed in claim 1 is characterized in that,
Said audio frequency and video output device is at least a in top box of digital machine, video disc player, DVR, video camera and the game machine.
14. the audio and video receiver with playback terminal is characterized in that,
Said audio and video receiver possesses first connecting portion and second connecting portion,
Said first connecting portion is connected in network through netting twine,
Said second connecting portion is connected with said playback terminal, and, be connected with the audio frequency and video output device through the bidirectional data transfers line,
Said audio and video receiver; Receive from the network of network data through netting twine, and, digital data signal received through said bidirectional data transfers line from said audio frequency and video output device; Utilize said playback terminal to play the audio-video signal in the said digital data signal
Between said audio frequency and video output device and the said network, can communicate through said audio and video receiver,
Said audio and video receiver also possesses network hardware module, interface processing module, network process module and handover module,
Said network hardware module is connected in said first connecting portion, sends said network requests data through said first connecting portion to said network, and receives the network data from said first connecting portion,
Said handover module is connected with said network hardware module, said interface processing module and said network process module; And; Switch; Thereby said interface processing module is connected with said network hardware module, perhaps said network process module is connected with said network hardware module
Said interface processing module is connected between said handover module and said second connecting portion; When said handover module was connected said interface processing module with said network hardware module, said interface processing module received the network data from said network hardware module through said handover module, this network data is carried out predetermined process after; Send to said second connecting portion; And, receive network requests data from said second connecting portion, these network requests data are carried out predetermined process after; Send to said network hardware module through said handover module
Said network process module is connected between said handover module and the said playback terminal; When said handover module is connected said network process module with said network hardware module; Said network process module receives the network data from said network hardware module through said handover module; After this network data carried out predetermined process, send to said playback terminal.
15. audio and video receiver as claimed in claim 14 is characterized in that,
Said audio and video receiver also possesses sensing module,
Said sensing module sends switching command to said handover module, and said handover module switches according to said switching command.
16. audio and video receiver as claimed in claim 15 is characterized in that,
Said sensing module is positioned at said second connecting portion; Detection is connected in the state variation of the said audio frequency and video output device of said second connecting portion through said bidirectional data transfers line; After detecting this state variation, send said switching command to said handover module.
17. audio and video receiver as claimed in claim 14 is characterized in that,
After having set up connection between said audio and video receiver and the said audio frequency and video output device, said handover module switches, and said interface processing module is connected with said network hardware module.
18. audio and video receiver as claimed in claim 14 is characterized in that,
Said audio and video receiver also possesses the first detection module and second detection module,
Said first detection module is between said interface processing module and said handover module; After the network requests data that detect from said interface processing module; Control said handover module and switch, thereby said interface processing module is connected with said network hardware module
Said second detection module is between said network process module and said handover module; After the network requests data that detect from said network process module; Control said handover module and switch, thereby said network process module is connected with said network hardware module.
19. audio and video receiver as claimed in claim 14 is characterized in that,
Said handover module can also be connected said interface processing module with said network process module.
20. audio and video receiver as claimed in claim 19 is characterized in that,
Said interface processing device is resolved this network packet after receiving the network packet that comprises the IP address from said second connecting portion, obtains the IP address,
Said handover module switches according to this IP address.
21. audio and video receiver as claimed in claim 19 is characterized in that,
The network packet of the said IP of comprising address is first network packet that said interface processing device receives from said second connecting portion.
22. audio and video receiver as claimed in claim 14 is characterized in that,
Said handover module switches according to the instruction of user's input.
23. audio and video receiver as claimed in claim 14 is characterized in that,
Said second connecting portion is a kind of among DIVA, the HDMI.
24. audio and video receiver as claimed in claim 14 is characterized in that,
Said network is a kind of in Ethernet, the ATM net.
25. audio and video receiver as claimed in claim 14 is characterized in that,
Said audio frequency and video output device is at least a in top box of digital machine, video disc player, DVR, video camera and the game machine.
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| CN105744344B (en) * | 2014-12-11 | 2019-10-01 | 深圳Tcl数字技术有限公司 | Control method for playing back and system |
| CN104936011B (en) * | 2015-06-09 | 2018-02-16 | 福建新大陆通信科技股份有限公司 | Multichannel audio-video frequency push and media playback service output intent based on set top box |
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