CN101483535A - Contents distribution method and receiving device - Google Patents
Contents distribution method and receiving device Download PDFInfo
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- CN101483535A CN101483535A CNA2009100023375A CN200910002337A CN101483535A CN 101483535 A CN101483535 A CN 101483535A CN A2009100023375 A CNA2009100023375 A CN A2009100023375A CN 200910002337 A CN200910002337 A CN 200910002337A CN 101483535 A CN101483535 A CN 101483535A
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Abstract
The present invention provides a contents distribution method and receiving device. The playback of contents in the course of progressive download is stopped depending on the information of the contents and network environments. Also, contents in the course of the playback of progressive download cannot be fast forwarded. When progressive download is indicated, a contents receiving terminal dynamically allocates resources (bus band, CPU, etc.) used in other stream processing within the receiving terminal and fast downloads a portion not downloaded to avoid the interruption of playing contents. Furthermore, the receiving terminal transmits a required communication band to a home gateway, which performs band control with other communications within a home network to allocate a maximum allocatable communication band to the contents receiving terminal.
Description
Technical field
The present invention relates to content distribution method and content reception apparatus via network.
Background technology
In recent years, along with the high capacity of network line, the high capacity of hard disk, realized Internet Protocol Television (IPTV) service gradually by contents such as IP (Internet Protocol) net distribution TV programme or films.But but when wanting to carry out audiovisual, can use the download service etc. of the flow transmission service rating high quality image of audiovisual by television set according to the needed VOD of user service.In addition, the service that the user downloads content clearly is not only in download service, and the service of downloading the commercial content of the hobby that meets the user automatically to television set or the video tape recorder of band HDD also can be provided.Like this, the chance that broad-spectrum image download service will be utilized from now on increases, and the communication occupation rate of indoor and outdoor also might increase, so download control method becomes important problem efficiently.
In patent documentation 1, the method for controlling reproduction of download service is studied.With " can confirm reproduction position of carrying out situation or video or the disk size downloaded; and the regeneration that can freely select video content is constantly " be problem, as its solution, put down in writing following content: " when from sending part 111 during; send content from video server, acceptance division 112 is obtained content size to the video server request content.Then, relatively content size and disk size as if the disk size deficiency, then show the disk size deficiency on display part 117.If the disk size abundance, then acceptance division 112 is obtained content, and write section 113 writes content in disk 114, makes display part 117 show the situation of downloading of carrying out.When content becomes the state that can regenerate, make display part 117 show the order that expression can be regenerated.When the user carries out regeneration, read portion 115 and from disk 114, read content, reproducing unit 116 makes display part 117 show reproduction position ".
[patent documentation 1] spy opens 2002-290948 communique (with reference to summary)
Summary of the invention
In the audiovisual form of IP broadcast program, be divided into following three kinds of forms substantially: carry out the flow transmission audiovisual of audiovisual in real time; Carry out the download audiovisual of audiovisual after the download; And with the limit download of both merging, the progressive download audiovisual (progressive download) of limit regeneration.
In patent documentation 1, about progressive download following technological thought being disclosed: shows to download in progressive download and carry out situation, make display part show the order that expression can be regenerated when content becomes the state that can regenerate.
Yet, in above-mentioned patent documentation 1, do not express be used to judge content whether become can reproduced state concrete means, especially exist reckon without can audiovisual the moment according to interior perhaps network environment and different problems.
In an embodiment of the invention, home gateway of terminal to server and terminal room (homegateway) or broadband router (broadband router) send the request of downloaded contents that begins to regenerate, described home gateway is according to the request Control Server that is sent and the transmission bandwidth of terminal room, terminal is guaranteed the resource that described download is required, the execution speed that change is downloaded, reproducing contents.
In addition, in an embodiment of the invention, terminal to server sends the request of downloaded contents that begins to regenerate, according to the request that is sent by the transmission bandwidth between terminal control and server, terminal is guaranteed the resource that described download is required, the execution speed that change is downloaded, reproducing contents.
According to above-mentioned means, can provide content distribution method and content reception apparatus easy to use.For example, can carry out audiovisual with the corresponding IP broadcast program of interior perhaps network environment.
Description of drawings
Fig. 1 represents an example of system configuration.
Fig. 2 represents an example of the program recording regenerating unit of embodiment 1.
Fig. 3 represents an example of the home gateway of embodiment 1.
Fig. 4 represents that bandwidth guarantees an example of asking.
Fig. 5 represents the example of flow chart of all flow processs of the progressive download of embodiment 1.
Fig. 6 represents an example of the flow chart of the processing that bandwidth is controlled.
Fig. 7 represents to guarantee the example of flow chart of the processing of resource.
Fig. 8 represents the influence of the receiver in the forward rate control.
Fig. 9 represents an example of the system configuration of embodiment 2.
Figure 10 represents an example of the program recording regenerating unit of embodiment 2.
Figure 11 represents an example of the bandwidth control table of embodiment 2.
Figure 12 represents the example of flow chart of all flow processs of the progressive download of embodiment 2.
Symbol description
101: content distributing server; 102: home gateway; 103: the content subscribing client; 104: the content subscribing client; 105: network; 106: home network; 201: antenna; 202: display unit; 203: loud speaker; 204: tuner; The 205:AN adapter; 206: the program recording regenerating unit; 207: memory; 208: auxiliary storage portion; 209: input unit; 210: the recording/reproduction control part; 211: data store; 212:CPU; 213:I/F; 214:I/F; 215:I/F; 216:I/F; 217:I/F; 218:I/F; 219:I/F; 220: bus; 221: network; 222:I/F; 223: department of resource management; 301: outdoor network; 302: home network; The 303:AN adapter; 304:I/F; The 305:AN adapter; 306: home gateway; 307: memory; 308: auxiliary storage portion; 309: the bandwidth control part; 310:I/F; 312:CPU; 314:I/F; 315:I/F; 319:I/F; 320: bus; 902: broadband router; 1024: program storage part; 1025: the service describing storage part; 1027: bandwidth control table storage part.
Embodiment
Below, the example (embodiment) of use description of drawings preferred implementation of the present invention.But application of the present invention is not limited to present embodiment.
(the 1st execution mode)
At first, system configuration is described.Fig. 1 represents an example of system configuration of the present invention.
In the figure, symbol 101 is content distributing servers, and symbol 102 is home gateways, and symbol 103 is content subscribing clients 1, and symbol 104 is content subscribing clients 2, and symbol 105 is networks, and symbol 106 is home networks.
Content subscribing client the 103, the 104th can link to each other with home gateway 102 with the content stores that sends from content distributing server by network the data store that the content subscribing client has and the information processor of regenerating.
Network 105 is internet or CDN broadband networks such as (Content Delivery Network), links to each other with content distributing server 101, home gateway 102.
The native system of Gou Chenging is an implementation content downloaded contents download distribution system in the above described manner, content subscribing client 103 and content subscribing client 104, utilize procotol such as HTTP content distributing server 101 to be sent the download request of contents, reception is via the content of net distribution, and the storage part in the content subscribing client carries out record.When carrying out content when downloading, the bandwidth that 104 pairs of home gateways of content subscribing client 103 and content subscribing client carry out network is guaranteed request, thus, even the regeneration in the process of downloading, last to content of also can regenerating incessantly.
Then, the content subscribing client in the system configuration of Fig. 1 is described.Fig. 2 is an example of program recording regenerating unit of the present invention, is equivalent to content subscribing client 103 and the content subscribing client 104 of Fig. 1.
In the figure, symbol 201 is antennas, and symbol 202 is display unit, symbol 203 is loud speakers, and symbol 204 is tuners, and symbol 205 is lan adapters, symbol 206 is program recording regenerating units, and symbol 207 is memories, and symbol 208 is auxiliary storage portions, symbol 209 is input units, and symbol 210 is recording/reproduction control parts, and symbol 211 is data store, symbol 212 is CPU, symbol 213 is I/F, and symbol 214 is I/F, and symbol 215 is I/F, symbol 216 is I/F, symbol 217 is I/F, and symbol 218 is I/F, and symbol 219 is I/F, symbol 220 is buses, symbol 221 is networks, and symbol 222 is I/F, and symbol 223 is departments of resource management.
Antenna 201 is the equipment that receives TV broadcasting such as terrestrial analog broadcast, ground data broadcasting or BS/CS digital broadcasting, links to each other with tuner 204.
Display unit 202 is the equipment that can export as image by the data flow that interface flows into, links to each other with I/F213.
Loud speaker 203 is the equipment of exporting as sound by the acoustic information of program indication can be linked to each other with I/F217.
Tuner 204 is an equipment of selecting channel from the broadcast singal that receives with antenna, links to each other with I/F215, antenna 201.
Lan adapter 205 is to use LAN (Local Area Network) and other device to carry out the equipment of data transmit-receive, links to each other with network 221, I/F219.
Program recording regenerating unit 206 is made of following each one: tuner 204, lan adapter 205, memory 207, auxiliary storage portion 208, recording/reproduction control part 210, data store 211, CPU212, I/F213, I/F214, I/F215, I/F216, I/F217, I/F218, I/F219, bus 220, I/F222, department of resource management 223.
Memory 207 for example is RAM (Random Access Memory) etc., is the semiconductor of blotter program or data, links to each other with CPU212, I/F222.
Auxiliary storage portion 208 is the storage parts that are used to store the program of being carried out by CPU, be ROM (ReadOnly Memory) or SD card, Compact Flash (registered trade mark), HDD non-volatile memory mediums such as (Hard Disk Drive), link to each other with I/F214.
Input unit 209 is that the user's operational transformation that will be used to control the program recording regenerating unit is the signal of telecommunication, and sends to the input equipment of program recording regenerating unit, links to each other with I/F218.
Recording/reproduction control part 210 is can control a plurality of content-datas that send from tuner or lan adapter or output to display or the LSI of the content-data of loud speaker, links to each other with data store 211, I/F216.
Data store 211 is to store the IC memory or the HDD memory devices such as (Hard Disk Drive) of the content-data of obtaining from tuner or network, links to each other with recording/reproduction control part 210.Data store 211 can be built in the program recording regenerating unit, also can be recording medium (removable media) removably.
CPU212 is the central arithmetic unit that is used for carrying out the program of launching at memory, links to each other with memory 207, I/F213, I/F217, I/F214, I/F219, I/F215, I/F216, I/F218.
I/F213 is can be from the interface of miscellaneous equipment by total line traffic control display unit.
I/F214 is can be from the interface of miscellaneous equipment by total line traffic control auxiliary storage portion.
I/F215 is can be from the interface of miscellaneous equipment by total line traffic control tuner.
I/F216 is can be from the interface of miscellaneous equipment by total line traffic control recording/reproduction control part.
I/F217 is can be from the interface of miscellaneous equipment by the bus control loudspeaker.
I/F218 can receive the signal of telecommunication that sends from input unit, and sends the interface of the signal of telecommunication to miscellaneous equipment by bus.
I/F219 is can be from the interface of miscellaneous equipment by total line traffic control lan adapter.
Bus 220 is to connect each equipment via each interface, and can carry out the communication path of data transmit-receive.
Network 221 is internet or CDN broadband networks such as (Content Delivery Network), links to each other with lan adapter 205.
I/F222 is can be from the interface of miscellaneous equipment by total line traffic control department of resource management.
Department of resource management 223 is monitor bus capacity or cpu busy percentage, memory span, judges LSI or program that the stream of the video recording that whether can implement to broadcast, content regeneration, VOD, download video recording etc. is handled, links to each other with I/F222.
When downloading content, from the user interface in display unit 202 promptings, during content that the user selects to wish by remote controller operation etc., CPU212 obtains from the server on the network via lan adapter 205 needs the meta file (metafile) downloaded.The URI that in meta file, has put down in writing in content or in downloading process as menu screen and to the information of the content of user prompt.
Whether CPU212 is when beginning to download, sufficient to the capacity of recording/reproduction control part 210 inquiry storages.Download needed capacity if can guarantee content, then obtain utilization of resources permission from department of resource management 223.CPU or bus in department of resource management 223 office terminals judge that whether can carry out new stream receives.When being judged as by department of resource management 223 can receive the time, CPU212 begins to download via lan adapter 205, network 221, and the short of request that stops from department of resource management 223 is just in received content stage end download process to the end.Stream in the download is stored in the data store 221 via lan adapter 205 and bus 220.
When the stream beyond downloading was handled, CPU212 confirmed whether to exist enough resources in department of resource management 223.Defined the priority that each stream is handled in department of resource management 223, when inadequate resource, the stream that temporary transient interrupt orders is low is handled, and perhaps reduces processing such as throughput.This priority can determine according to the service of program recording regenerating unit utilization.Usually, set the priority of downloading lower, with the priority of flow transmission (streaming) set higher getting final product, but also can at random set.
At this, when the content in the downloading process is regenerated,, reproduction position downloads the completing place for being no more than, and need make speed of download identical with reproduction speed or more than reproduction speed.In program recording regenerating unit 206, when the content in downloading is carried out Regeneration Treatment, department of resource management 223 improve download process order in advance, increase the communication bandwidth control that utilizable communication bandwidth in downloading etc. is no more than reproduction position to download the completing place.When carrying out a plurality of download process, preferred priority improves the bus bandwidth of content in the download of carrying out Regeneration Treatment or the occupancy of CPU.
In addition, equipment on the home network is in order to communicate with outdoor Distributor etc. and via home gateway, therefore, in order to increase communication bandwidth, preferably guarantee to ask to guarantee communication bandwidth in the home network by send bandwidth from 205 pairs of home gateways 102 of lan adapter.Therefore, when the stream that receives by program recording regenerating unit 206 utilize bandwidth change the time, in home gateway 102, can guarantee to ask in home gateway, to confirm whether can change then by bandwidth to changing in the communication throughput that home network allows.
Fig. 4 is an example of guaranteeing to ask from the bandwidth that 206 pairs of home gateways of program recording regenerating unit send.In guaranteeing to ask, bandwidth comprises the service identifier of representing institute's requested service, the bandwidth on demand of representing the bandwidth of utilization in this service.
As mentioned above, for example because the content of utilizing outdoor network download is carried out Regeneration Treatment etc., and when needing the change of communication bandwidth, the program recording regenerating unit of home network guarantees that with bandwidth request sends to home gateway, and this bandwidth guarantees to ask to comprise the bandwidth of utilizing of the service identifier of " PDL " of progressive download shown in Figure 4 and corresponding with it " 20Mbps ".Receive bandwidth and guarantee the home gateway of asking, can with department of resource management 223 similarly, according to the service of program recording regenerating unit utilization, be that bandwidth is guaranteed the service that the requested service identifier is represented, decide the priority of the stream that will transmit.Usually, set the priority of downloading lower, set the priority of flow transmission (streaming) higher, but also can set the relative importance value of progressive download more high, at random set.
In addition, when service is when downloading, even when not guaranteeing bandwidth capacity that the bandwidth that sends guarantees to ask, also the bandwidth capacity that can lack by the bandwidth capacity of guaranteeing than the bandwidth that sends to ask is downloaded.For example, surpass in the summation of the capacity that utilizes bandwidth of the service that is utilized under the situation of bandwidth capacity of home network, when making flow transmission preferential, be controlled to from the entire belt tolerance of home network and deduct the bandwidth of in flow transmission, utilizing, remaining bandwidth is used for downloading, therefore, do not guarantee the bandwidth capacity of asking though guarantee the bandwidth that is sent, in this case, even the bandwidth capacity that the bandwidth capacity of guaranteeing to ask than bandwidth lacks also can be downloaded.
Then, the home gateway in the system configuration of Fig. 1 is described.Fig. 3 is an example of the home gateway among the present invention, is equivalent to the home gateway 102 of Fig. 1.NAT (the Network Address Translator) function that is connected with LAN with WAN has been installed, has carried out the Control on Communication in the home network 302.
In the figure, symbol 301 is outdoor networks, and symbol 302 is home networks, symbol 303 is lan adapters, and symbol 304 is I/F, and symbol 305 is WAN adapters, symbol 306 is home gateways, and symbol 307 is memories, and symbol 308 is auxiliary storage portions, symbol 309 is bandwidth control parts, and symbol 310 is I/F, and symbol 312 is CPU, symbol 314 is I/F, symbol 315 is I/F, and symbol 319 is I/F, and symbol 320 is buses.
I/F304 is can be from the interface of miscellaneous equipment by total line traffic control lan adapter.
Bandwidth control part 309 is when carrying out bandwidth control when a plurality of program recording regenerating units are distributed some program datas, make to carry out LSI and the program that program data at a high speed receives, linking to each other with I/F310.
I/F310 is can be from the interface of miscellaneous equipment by total line traffic control lan adapter.
CPU312 is the central arithmetic unit that is used for carrying out the program of launching at memory, links to each other with memory 307, I/F314, I/F319, I/F315, I/F304, I/F310.
I/F314 is can be from the interface of miscellaneous equipment by total line traffic control auxiliary storage portion.
I/F315 is can be from the interface of miscellaneous equipment by total line traffic control tuner.
I/F319 is can be from the interface of miscellaneous equipment by total line traffic control WAN adapter.
The network of outdoor (the outdoor network) of home gateway 306 general using and indoor (home network) has functions such as firewall functionality, protocol conversion.At this, further specify and the mode of guaranteeing to ask corresponding bandwidth control from the bandwidth of program recording regenerating unit.
Home gateway when receiving from data that the program recording regenerating unit sends via home network, launches the data that receive in memory 307 via lan adapter 303.Before the content that obtains from server by the request of program recording regenerating unit, judge whether to send by home network 302 stream of the content of being asked.When existing by home gateway when outdoor network 301 receives the session of stream, be considered as flowing the service of processing, restriction becomes the utilized bandwidth of the session of object.In this said service is flow transmission, download or progressive download, and the restriction as utilized bandwidth for example has: if the program recording regenerating unit that is utilizing download service then reduces its throughput etc. in home network.
When a plurality of program recording regenerating units in family's network have been implemented the Regeneration Treatment in the download, even receiving the progressive download of this program recording regenerating unit, home gateway begins request, also can't guarantee in bandwidth is guaranteed to ask, to comprise utilize the represented bandwidth of bandwidth the time, the situation that can't carry out institute's processing of request sends to the program recording regenerating unit of having asked progressive download as mistake.
Guarantee request from the bandwidth that the program recording regenerating unit sends to home gateway, utilize the head part of agreements such as common HTTP that in the content distribution, is utilized or RTSP.As previously mentioned, Fig. 4 is that bandwidth is guaranteed request.For example utilize the extension header of HTTP or RTSP to send bandwidth and guarantee request.Bandwidth guarantees that the requested service identifier comprises the ID that is used to discern flow transmission or download, progressive download, utilizes bandwidth to send the capacity of wanting the communication bandwidth that utilizes by home gateway.
Then, progressive download is described.Fig. 5 is the example of flow chart of all flow processs of the progressive download in the expression program recording regenerating unit 206.
At first, make the contents list in the display unit prompting download that links to each other with the program recording regenerating unit, content (step 501) in the download of therefrom selecting to regenerate.Content in the download is to utilize the html browser that is installed in the program recording regenerating unit to be connected, to obtain contents list, the user that can distribute with Distributor therefrom to select to have begun then downloaded contents.
Then, the program recording regenerating unit is guaranteed request to the bandwidth that home gateway sends Fig. 4, notice beginning progressive download.In guaranteeing to ask, bandwidth put down in writing the size (bit rate (bit rate)) of the bandwidth of the service identifier of progressive download and its utilization.The so-called bit rate that utilizes is the identical or value (step 502) more than it of bit rate with this content.
Then, home gateway carries out bandwidth control, guarantees the bandwidth (step 503) of asking by bandwidth so that guarantee the program recording regenerating unit.
Then, carry out resource management (step 504) by the program recording regenerating unit.At this, the program recording regenerating unit, when receiving expression from home gateway and can guarantee to guarantee to ask the notice of the bandwidth of being asked by bandwidth, whether checking can guarantee the resource in the program recording regenerating unit.
During resource in can guaranteeing the program recording regenerating unit, cut off the reception stream of the content in this download temporarily, begin to download (step 505) with bit rate once more to the home gateway request.That is, temporarily stop to download, stop session, change begins after downloading execution speed once more.Each router on the path is according to the bandwidth control information of having set, preferentially sends the packet of this content of sending from Distributor to home gateway.
When normally beginning to download, regeneration selected content (step 506) in display unit.When this content arrival finished to download at last, download process finished voluntarily, but Regeneration Treatment is proceeded.
So, when carrying out progressive download, by carry out bandwidth control etc. can regenerate with download in the corresponding content of network environment perhaps.
One example of the flow chart of the bandwidth control and treatment in the home gateway of the step 503 of Fig. 6 presentation graphs 5.In on display unit, selecting the content displayed tabulation to download during content, send bandwidth from the program recording regenerating unit and guarantee request, but when having the function that to implement bandwidth control from Distributor to family's gateway, can carry out more stable progressive download.
At first, the bandwidth control and treatment (step 601) of enforcement from the home gateway to the content distributing server.Utilize the function of the router between Distributor and home gateway to implement the initial treatment that bandwidth is controlled.
Then, judge whether to guarantee specified download execution speed (step 602).For example, utilize SIP functions such as (Session Initiation Protocol), when the session of guaranteeing between Distributor and the home gateway, carry out guaranteeing of bandwidth control.If can guarantee specified download execution speed (step 602 is), then enter step 603.If can't guarantee specified download execution speed, then enter step 606.
In step 603, the bandwidth of finishing from the program recording regenerating unit to content distributing server is guaranteed.
Step 604 is to guarantee the processing of bandwidth to user notification.On display unit, show and to guarantee communication bandwidth, do not carry out Regeneration Treatment, proceed the download process of carrying out before this.
One example of the flow chart of the processing of guaranteeing the resource in the program recording regenerating unit of the step 504 of Fig. 7 presentation graphs 5.At this, the coordination approach when having carried out a plurality of handle in the program recording regenerating unit is described.A plurality of processing are managed by department of resource management, when implementing to handle, to the situation that department of resource management confirms CPU, memory or bus, carry out this processing when securing permission.
At first, needed download execution speed (bit rate) when progressive download is carried out in department of resource management's input is implemented the checking request (step 701) that whether can carry out.
Then, at the download execution speed of input in step 701, whether the resource in the investigation program recording regenerating unit inadequate (step 702).Whether department of resource management confirms can carry out with the download execution speed of input in the step 701 and downloads according to the treatment situation in the current program recording regenerating unit.
When the resource in the program recording regenerating unit is inadequate (step 702 is), be created on the guide look of the task in handling in the current program recording regenerating unit, enter step 703 then.(step 702 not), finishes to guarantee the processing of resource, is transferred to the processing of reproducing contents when the necessary resource in the program recording regenerating unit is sufficient.
To be CPU obtain the processing of the resource information (task list) that task when pre-treatment and each task just utilizing from department of resource management to step 703.Obtained task list is launched in memory.
In step 704, according to the task list that CPU obtains from department of resource management, whether investigation exists the task in the stream processing.When the task in the existence processing (step 704 is), enter step 705.If the task (step 704 denys) that does not exist stream to handle then enters step 708.
Step 705 is to select the processing of the candidate of interrupt flow processing.At this, select the recording schedule of broadcasting to handle task in addition.The video recording of broadcasting with download differently, can't carry out then, therefore from the tabulation of the candidate of interrupt flow processing, delete.
Step 706 is that (suspend) selected task handling is hung up in department of resource management's request.At this moment, the low task of priority is risen, consider the flow transmission, download of VOD for example etc.In this case, for flow transmission, be judged as the user in the audiovisual process, for download, request is hung up.
Step 707 is to import this download execution speed, verify the processing that whether can carry out to department of resource management in the download process that will carry out the stream processing.
Step 708 is to guarantee the processing of resource to user notification.When resource is inadequate, cancel listed this download process, utilize display unit not implement to handle and finish to user notification.
So,, can more cosily carry out from storage, the audiovisual of the content of server distribution by carry out the management of bandwidth control or resource according to network environment etc.
In addition, by reducing forward rate at transmitter side, carry out both throughput control at receiver side, processing load that can receiver control is controlled a plurality of download process, action when carrying out with flow transmission.At this, fixed the control of receiver side, the influence of the receiver in the expression forward rate control be Fig. 8.
Fig. 8 is the forwarding bit rate variation that makes the distribution side, measures the cpu busy percentage of download process of receiver side of this moment and the result that obtains.With respect to 52.1% cpu busy percentage under the holding state, be about 60% at the following lower limit of 20Mbps.Its reason is that the buffer of receiver side is fixed, and implements writing to HDD by progressively handling.
(the 2nd execution mode)
In the 2nd execution mode, illustrate in the network within the family, not only, also can realize structure of the present invention by the general BB router that utilizes by the home gateway of H.D service can be provided.
Fig. 9 is a system construction drawing.
It is an example of the system configuration imagined among the present invention.
In the figure, symbol 901 is content distributing servers, and symbol 902 is broadband routers, and symbol 903 is content subscribing clients 1, and symbol 904 is content subscribing clients 2, and symbol 905 is networks, and symbol 906 is home networks.
Content distributing server 901 is contents such as stored images, and the device according to the request distributing contents of the client computer that connects via network links to each other with network 905.Broadband router 902 is the devices on the border of the network (home network) that is positioned at family and outside network (internet etc.), links to each other with network 905, content subscribing client 1903, content subscribing client 2904.Content subscribing client 1903 and content subscribing client 2904 are can be with the content stores that sends from content distributing server by network the data store that the content subscribing client has and the information processor of regenerating.Usually, it is equivalent to receive television set or the HDD video tape recorder and the PC of VOD service.The content subscribing client is notified mutual state by means of communication such as UPnP each other, and the content subscribing client can utilize disclosed service.At this,, can provide the progressive download environment to the user by managing mutual VOD service reception situation, being controlled at the communication bandwidth of the VOD service that utilizes in the content subscribing client in the home network mutually.
About the hardware configuration of content subscribing client, in the program recording regenerating unit of Fig. 9, represent, but the communication that also can be undertaken based on UPnP by lan adapter 905.In auxiliary storage portion 908, stored service describing 925, the service that provides by UPnP has been provided this service describing 925, when the state of content subscribing client is changed, when other content subscribing client update notifications information, utilize the service describing 925 of storage in auxiliary storage portion 908 to revise the more laggard row transmission of new portion.The content subscribing client is present in the home network, links to each other with broadband router 902, can communicate via broadband router 902 and content distributing server 901.
Network 905 is so-called internet or CDN broadband networks such as (Content Delivery Network), links to each other with content distributing server 901, broadband router 902.Home network 906 is the internal home networks that connected indoor each device by WLAN, wired lan, router and HUB etc., by broadband router 902, content subscribing client 1903, content subscribing client 2904 and can constitute with the information processors such as PC (not shown) that miscellaneous equipment communicates.
Figure 10 is the figure of the program recording regenerating unit that utilizes in the present embodiment of expression.
In the figure, symbol 1001 is antennas, and symbol 1002 is display unit, symbol 1003 is loud speakers, and symbol 1004 is tuners, and symbol 1005 is lan adapters, symbol 1006 is program recording regenerating units, and symbol 1007 is memories, and symbol 1008 is auxiliary storage portions, symbol 1009 is input units, and symbol 1010 is recording/reproduction control parts, and symbol 1011 is data store, symbol 1012 is CPU, symbol 1013 is I/F, and symbol 1014 is I/F, and symbol 1015 is I/F, symbol 1016 is I/F, symbol 1017 is I/F, and symbol 1018 is I/F, and symbol 1019 is I/F, symbol 1020 is buses, symbol 1021 is networks, and symbol 1022 is I/F, and symbol 1023 is departments of resource management, symbol 1024 is programs, symbol 1025 is service describings, and symbol 1026 is I/F, and symbol 1027 is bandwidth control table storage parts.
Program recording regenerating unit 1006 is made of following each one: tuner 1004, lan adapter 1005, memory 1007, auxiliary storage portion 1008, recording/reproduction control part 1010, data store 1011, CPU1012, I/F1013, I/F1014, I/F1015, I/F1016, I/F1017, I/F1018, I/F1019, bus 1020, I/F1022, department of resource management 1023, I/F1026, bandwidth control table storage part 1027.
Additional storage 1008 is the storage parts that are used to store the program of being carried out by CPU, be ROM (ReadOnly Memory) or SD card, Compact Flash, HDD non-volatile memory mediums such as (Hard Disk Drive), constitute by program 1024, service describing 1025, link to each other with I/F1014.
Input unit 1009 is that the user's operational transformation that will be used to control the program recording regenerating unit is the signal of telecommunication, and sends to the equipment of program recording regenerating unit, links to each other with I/F1018.
Recording/reproduction control part 1010 is can control a plurality of content-datas that send from tuner or lan adapter or be used for LSI to the content-data of display or loud speaker output, links to each other with data store 1011, I/F1016.
CPU1012 is the central arithmetic unit that is used for carrying out the program of launching at memory, links to each other with memory 1007, I/F1013, I/F1017, I/F1014, I/F1019, I/F1015, I/F1016, I/F1018, I/F1026.
I/F1013 is can be from the interface of miscellaneous equipment by total line traffic control display unit.I/F1014 is can be from the interface of miscellaneous equipment by total line traffic control auxiliary storage portion.I/F015 is can be from the interface of miscellaneous equipment by total line traffic control tuner.I/F1016 is can be from the interface of miscellaneous equipment by total line traffic control recording/reproduction control part.I/F1017 is can be from the interface of miscellaneous equipment by the bus control loudspeaker.I/F1018 can receive the signal of telecommunication that sends from input unit, and sends the interface of the signal of telecommunication to miscellaneous equipment by bus.I/F1019 is can be from the interface of miscellaneous equipment by total line traffic control lan adapter.Bus 1020 is to connect each equipment via each interface, and can carry out the communication path of data transmit-receive.Network 1021 is internet or CDN broadband networks such as (Content Delivery Network), links to each other with lan adapter 1005.I/F1022 is can be from the interface of miscellaneous equipment by total line traffic control department of resource management.
Department of resource management 1023 is monitor bus capacity or cpu busy percentage, memory span, judges LSI or program that the stream of the video recording that whether can implement to broadcast, content regeneration, VOD, download video recording etc. is handled, links to each other with I/F1022.Program 1024 is to be used for guaranteeing to ask to login program at bandwidth control table storage part with UPnP service and with the bandwidth of other content subscribing client transmitting-receiving.Service describing 1025 is the service description file by the UPnP of descriptions such as XML.Program utilizes service describing to provide UPnP service to other content subscribing client.I/F1026 is can be from the interface of miscellaneous equipment by bus control bandwidth admin table.
Bandwidth control table storage part 1027 is storage parts of having stored the network bandwidth that the VOD service guide look that just moving in the content subscribing client and each VOD service utilized.Be IC memory or HDD memory devices such as (Hard Disk Drive) built-in in the content subscribing client, link to each other with I/F1026.
Figure 11 is the figure of expression bandwidth control table 1101.Bandwidth control table 1101 is the table information of storing in the bandwidth control table storage part in the content subscribing client, has stored the bandwidth guide look that utilizes in the guide look of the VOD service that is performed in each the content subscribing client in the home network and each VOD service.The login of the table managed in each content subscribing client has identical information, when new enforcements VOD service, utilizes bandwidth evaluation by what bandwidth control table 1101 that each content subscribing client is had and new VOD served, judges whether and can carry out.About estimating, be meant that comparison serves the bandwidth of using in needed bandwidth and the bandwidth control table 1101 of utilizing based on the maximum communication bandwidth of the WAN side of the rule of thumb, the maximum communication bandwidth and the new VOD of each content subscribing client WAN side management or that obtain corresponding to the broadband router that UPnP IGD (Internet GatewayDevice) has been installed.
Then, by Figure 12 handling process in the progressive download in the present embodiment is described.Step 1201 is processing of the content during the user selects to download.Content guide look in show downloading on TV set image, the user operates by remote controller and selects the content of wishing.
Claims (13)
1. one kind by the content distribution method of terminal to regenerating from the content of server, it is characterized in that,
Described terminal sends the request that just begins to regenerate in downloaded contents to the home gateway of described server and described terminal room,
Described home gateway is controlled the transmission bandwidth of described server and described terminal room according to the request of described transmission,
Described terminal is guaranteed the resource of needed this terminal of described download, changes the execution speed of described download, the described content of regenerating.
2. content distribution method according to claim 1 is characterized in that,
The described requests for content that begins to regenerate comprises the information of the needed transmission bandwidth of download of representing this content.
3. content distribution method according to claim 2 is characterized in that,
The control of the server that described home gateway carries out and the transmission bandwidth of terminal room, if can guarantee the represented transmission bandwidth of information of the needed transmission bandwidth of download of this content of in the described requests for content that begins to regenerate, comprising, then guarantee this transmission bandwidth; If cannot guarantee the represented transmission bandwidth of information of the needed transmission bandwidth of download of this content, then the notice expression can't be guaranteed the order of transmission bandwidth.
4. content distribution method according to claim 1 and 2 is characterized in that,
Thereby described terminal interrupts guaranteeing resource by the task that this terminal is being handled.
5. content distribution method according to claim 4 is characterized in that,
The task of interrupting is the processing task in addition of broadcast program recording.
6. according to claim 4 or 5 described content distribution methods, it is characterized in that,
Select the task of interrupting according to predefined relative importance value.
7. a receiving system is characterized in that,
Have:
The acceptance division of received content;
The storage part of the content that storage is received by described acceptance division;
Efferent, the interior content of perhaps in described storage part, storing that output is received by described acceptance division; And
Control part when receiving the indication of being regenerated by the content in the described acceptance division receiving course, interrupts handling of task.
8. receiving system according to claim 7 is characterized in that,
Described control part interrupts the processing processing in addition of broadcast program recording.
9. according to claim 7 or 8 described receiving systems, it is characterized in that,
Described control part is selected the task of interrupting according to predefined relative importance value.
10. one kind by the content distribution method of terminal to regenerating from the content of server, it is characterized in that,
When beginning reproduction terminal during just in downloaded contents, according to the content needed transmission bandwidth of regenerating, the transmission bandwidth that each terminal in the Control Network is being utilized,
Described terminal is guaranteed the resource of needed this terminal of described download, changes the execution speed of described download, the described content of regenerating.
11. content distribution method according to claim 10 is characterized in that,
The described requests for content that begins to regenerate comprises the information of the needed transmission bandwidth of download of representing this content.
12. content distribution method according to claim 11 is characterized in that,
The control of the server that carries out at described each terminal room and the transmission bandwidth of terminal room, if can guarantee the represented transmission bandwidth of information of the needed transmission bandwidth of download of this content of in the described requests for content that begins to regenerate, comprising, then guarantee this transmission bandwidth; If cannot guarantee the represented transmission bandwidth of information of the needed transmission bandwidth of download of this content, then the notice expression can't be guaranteed the order of transmission bandwidth.
13. receiving system according to claim 7 is characterized in that,
Have:
Be used for the identifier that the reception in each terminal course of action is handled;
Store the storage part that needed transmission bandwidth is handled in described reception; And
Acceptance division receives the reception of being logined by each terminal via network and handles notice.
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Cited By (1)
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| WO2012072045A1 (en) * | 2010-12-03 | 2012-06-07 | 华为技术有限公司 | Method, network node and system for data transmission in cdn network |
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| US8909807B2 (en) * | 2005-04-07 | 2014-12-09 | Opanga Networks, Inc. | System and method for progressive download using surplus network capacity |
| EP2048541A4 (en) | 2006-08-04 | 2010-12-01 | Jsr Corp | Method of forming pattern, composition for forming upper-layer film, and composition for forming lower-layer film |
| JP2013513992A (en) * | 2009-12-09 | 2013-04-22 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | Policy for content download and content upload |
| WO2012157033A1 (en) * | 2011-05-17 | 2012-11-22 | パナソニック株式会社 | Stream processing device |
| KR101904053B1 (en) | 2012-03-13 | 2018-11-30 | 삼성전자 주식회사 | Apparatus and method for processing a multimedia data in terminal equipment |
| JP2014093655A (en) | 2012-11-02 | 2014-05-19 | Sony Corp | Information processing device, information processing method, and program |
| JP6432947B2 (en) * | 2016-09-12 | 2018-12-05 | ▲ホア▼▲ウェイ▼技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Data packet processing method, system, and device |
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| JP2002290948A (en) * | 2001-03-28 | 2002-10-04 | Ntt Advanced Technology Corp | Method for distributing/reproducing video contents, program for carrying out the method and video contents distribution/reproduction system |
| JP2004222042A (en) * | 2003-01-16 | 2004-08-05 | Toshiba Corp | Content distribution apparatus and method therefor |
| JP2005051486A (en) * | 2003-07-28 | 2005-02-24 | Matsushita Electric Ind Co Ltd | System for distributing content |
| JP2006279843A (en) * | 2005-03-30 | 2006-10-12 | Nippon Telegraph & Telephone West Corp | Content distribution system and content reproduction device |
| JP2006333338A (en) * | 2005-05-30 | 2006-12-07 | Kyocera Corp | Transmission request informing method and mobile terminal device, and computer program |
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| WO2012072045A1 (en) * | 2010-12-03 | 2012-06-07 | 华为技术有限公司 | Method, network node and system for data transmission in cdn network |
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| JP2009188981A (en) | 2009-08-20 |
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