CN1845551A - Contents sharing apparatus and contents sharing method - Google Patents
Contents sharing apparatus and contents sharing method Download PDFInfo
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- CN1845551A CN1845551A CN 200610072584 CN200610072584A CN1845551A CN 1845551 A CN1845551 A CN 1845551A CN 200610072584 CN200610072584 CN 200610072584 CN 200610072584 A CN200610072584 A CN 200610072584A CN 1845551 A CN1845551 A CN 1845551A
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Abstract
When a content is playbacked via a network, if a transmission-sided terminal of the content is under stopping condition, then a lengthy time is required until the content is playbacked. When an activation time of a recorder is measured and contents are recorded on this recorder, a content corresponding to the activation time is copied to another recorder so as to be shared by the own recorder and another recorder. In the case that the content is playbacked via the network, the content held in the own recorder is firstly playbacked, and when the recorder holding the content is activated, so that the content can be transmitted, the own recorder directly receives the content from the recorder holding the content to playback the received content.
Description
Related application
The application requires Japanese patent application 2005-111511 number of proposing on April 8th, 2005 and Japanese patent application 2006-018366 number the priority that proposed on January 27th, 2006.Here it is for reference to introduce its content in this application.
Technical field
The present invention relates to share the content share system and the content sharing means of content by network soon suitablely.
Background technology
Spread to the family is that VTR (Video Tape Recorder) register, DVD (Digital Versatile Disc) register and HDD (the Hard Disk Drive) using method that register is general at center is: mainly be to reproduce after playing the ripple record, or will reproduce hiring out the content of leasing or buying in video tape shop and video tape shop, export image and sound to television set.
These record cells and television set are when obtaining popularizing, and price reduces rapidly, generally has many in one family.In addition, especially, what selling is towards general family, by based on IEEE1394 and businessman communicating by letter of communication standard etc. independently, from the product of the television set operation note unit in the place of distance more than several meters.
On the other hand, along with popularizing of the Internet, generally set up IP in the family (InternetProtocol) network.
Like this, attempt sending and receiving AV (AuthorizedVersion) content within the family on the IP network, particularly because the appearance of DLNA (Digital Living Network Alliance) standard, universally has a realistic meanings by what the content in the family of IP network in the family was shared.
Content is shared in the one family many HDD record cells is connected with the used as television network in the family, shares mutually.Utilize present technique, can just can share content, for example, can be simply the content that is recorded in the record cell in bedroom be reproduced in real time so long as can IP under the network environment of communication.
; reproduce under the situation of content in the content record unit that uses map network, by network; reproducing time that the time that needs before the content of transmit leg and network send needs, be the stand-by period for the user from the summation of time of receiving the reproduction needs; so for example compare, react very slow with simulated television.
On the other hand, awareness of saving energy in recent years improves, no matter and be what record cell, awaiting electric energy all becomes problem, requires to become when not using hibernation mode.Only start the recording schedule function under hibernation mode, the Min. that CPU (Central Processing Unit) needs starts.
In order to obtain content from WOL (Wake On LAN) the corresponding record unit of hibernation mode by network, the special IP packets of information that will be called magic packet (magic packet) usually sends to the record cell that keeps content, after starting record cell, need obtain content from record cell.
Be generally the start-up time of record cell the several seconds～tens of second.The startup of network function is the processing that needs the time especially, for example utilizes the general start-up times that need more than 10 seconds such as situation of DHCP (Dynamic Host ConfigurationProtocol) server.Just, from the record cell of hibernation mode to obtaining to need tens of seconds above times before the content.
In order to solve such problem, generally adopt the method for reading to download (or received signal) in advance of high-speed cache and data.
So-called high-speed cache is to keep temporary transient part or all data of using in advance, is using under the same data conditions then, by reading from cache memory, realizes the conventional method of raising speed.
As content read the example that receives in advance, in (spy opens the 2003-009113 communique), narrated the method for reproducing after reading content in advance.
The composition of cache memory generally uses CPU and web browser.The method is very effective under the high situation of (hit) rate of hitting of cache memory, but in order to improve the hit rate of cache memory, statistical disposition is necessary, so have shortcoming in essence, promptly to make a spot of content hit cache, must carry out high-speed cache full content.
Just, use the method for cache memory,, the content of having reproduced all must be kept for the record cell from hibernation mode obtains content at a high speed.In addition, because there is not caches in the content that does not have to reproduce, so can not obtain at a high speed.
In order to solve such problem, realized downloading the method for content before with being loaded in user's operation under the data pre-head.It is the method for downloading the data that are predicted as down less important download (acquisition) in advance that what is called is read to download in advance.
For example, a part makes web browser improve the software of speed, adopts this utilization to read to obtain the method for the content of connecting object in advance before user's operation.
This pre-head method be as predicting next user operation really, then is unusual effective method.In the method, the information of user's input is many more, the next user's of easy more prediction operation.In addition, the action of said network browsing generally after obtaining content, has the regular hour in next time before the operation, so read in advance during this period, can download content effectively.
, in the method for reading in advance, exist behind user's starting drive, do not read in advance at once, can not use the shortcoming of the method for reading in advance.In addition, read the middle shortcoming that takies many network bands that exists in advance.Just, utilizing under the situation about reading in advance, the terminal of operating a side will start the record cell in stopping in advance, obtains content in advance.Obtain content owing to this can inadvertently start other record cells, thus power consumption many aspect and take the many aspects of storage areas such as memory and hard disk, this has just become problem.
Adduciblely as the derived method of reading in advance be, in case user-initiated actions terminal, the just methods that other record cells are all started.So,, obtain content by network and also can use the relatively shorter time owing to can shorten start-up time., have the problem of the power consumption that will increase record cell quantity.
In addition, can consider when hibernation mode, only to start the method for network function, but not wish for obsolete function almost and a direct acting.
Just, the problem that solves is: in the content record unit corresponding to network as the content sharing means, when reproducing content,, before reproduction of content, need this problem of time in case the transmission-sided terminal of content is in hibernation mode by network.
Summary of the invention
In order to solve described problem, the present invention is the start-up time of measuring record cell, in case in this recording unit records content, then the start-up time of content replication is partly carried out the shared content sharing means in other record cells, in content sharing means, comprising: the unit that keeps the time of startup content sharing means needs with function of sharing content by network; Send the unit of the content of the time be equivalent to start needs in advance to other devices; Make and upgrade the unit of the index that remains on the content in the content sharing means; And make index and the shared unit of other guide sharing means, and send the content of the time that is equivalent to described startup needs in advance to the other guide sharing means, content is shared, can realize the high-speed retrieval function.
In addition, in the present invention, also comprise the startup needs of measuring described content sharing means time the unit and make and upgrade the unit of the index that is equivalent to start the content that needs the time, make the network address that keeps content in the index.
In addition, in the present invention, will be equivalent to the content indexing that described startup needs the time, and be included in the zone after the content indexing that keeps in the described content sharing means expanded and manage.
In addition, in the present invention, to be equivalent to described startup and to need the content of time and other devices to share in order to make in advance, comprise start-up time in index, other devices are equivalent to the content of start-up time by request to be shared in advance.
In addition, in the present invention, content is carried out comprise in the content sharing means of sharing functionality having: the unit that from the other guide sharing means, obtains index by network; Obtain the unit of a part of content in advance from the other guide sharing means; Obtain the unit of the further part of the content that obtains in advance from other guide sharing means, when the content of reproducing by described index appointment, reproduce the content that obtains in advance, after the content that obtains in advance, continue to reproduce the further part of content with content.
In addition, in the present invention, a part of content that will obtain in advance, it is the content as content representation that should in content sharing means shared content index, obtain in advance, in addition, being equivalent to obtain from the content sharing means length of content start time, is to specify in the time will obtaining content and the length of a part of content of obtaining in advance.
In addition, in the present invention, when reproducing content, indicate to start the other guide sharing means, reproduce the content that obtains in advance, continue the content of acquisition in advance, reproduce the further part of content.
In addition, in content sharing method of the present invention, comprising:, make or be updated in the step of the index of the content that keeps in the content sharing means for the index and the other guide sharing means of content are shared; Send the step of the content of the start-up time be equivalent to the content sharing means in advance, send in advance and be equivalent to corresponding with the content of the index of reference appointment content sharing means content of start-up time.
In addition, in content sharing method of the present invention, comprising: the step that obtains a part of content from the other guide sharing means in advance; With remain on content indexing in the content sharing means specify the content that will reproduce, and instruction reproduce the step of content; The step that the content that obtains in advance by reproduction instruction is reproduced; With the step of the further part of the content that obtains from other guide sharing means to obtain in advance, after the content that obtains in advance, continue the further part of reproduction content with the content that will reproduce.
Record cell of the present invention, the startup of the record of share service device one sidelights in advance unit needs the content of time.Therefore, during before the record cell of server one side starts, the content that use accumulates in the client computer one sidelights record unit is reproduced, in case the record cell of server one side starts, that then can utilize the content of being undertaken by network sends the reproduction content, have and to pass through in the indication of client computer one side by the reproduction of content of index appointment, the instantaneous effect that begins to reproduce.
In addition, as other mode, record cell of the present invention will start at the record cell of server one side in advance needs the internal volume of time portion to exist in other record cells.In other record cell, the ratio of the time that is starting in the record cell that use can connect by network big or start-up time early.The terminal of client computer one side before the record cell of server one side of accumulating content starts during, the content that use accumulates in other the record cell is reproduced, in case server one sidelights record unit starting can utilize by the content of network and send the reproduction content.So, do not accumulate a part of content even have in client computer one side, also can instantaneously begin to reproduce the advantage of content.
Description of drawings
Fig. 1 is the overall diagram of apparatus of the present invention.
Fig. 2 reproduces with the flow process before the content immediately shared.
Fig. 3 is the flow process of reproducing under the content situation.
Fig. 4 is a flow process of measuring start-up time.
Fig. 5 is the key diagram of index.
Fig. 6 is the example that the expression index is selected.
Fig. 7 is the detailed process that makes subsequent content request.
Fig. 8 is the key diagram of request subsequent content.
Fig. 9 is illustrated in the figure that flows of data when reproducing content and reproducing with content immediately.
Figure 10 is the figure of the relation of expression content whole, the content of reproduction usefulness immediately, subsequent content.
Figure 11 is illustrated in to limit under the situation of duplicating, the figure of the relation of content whole, the content of reproduction usefulness immediately and subsequent content.
Figure 12 is the flow process in the situation of server one side deletion content.
Figure 13 is the overall diagram of the embodiment of the invention 2.
Figure 14 is the basic procedure of the embodiment of the invention 2.
Figure 15 is the example that keeps reproducing immediately with the table of selecting the result of the record cell of content.
Figure 16 is a flow process of reproducing the situation of content.
Figure 17 is the key diagram of index.
Figure 18 is the basic procedure that reproduces and reproduce again corresponding to stopping.
Figure 19 is the key diagram that reproduces the tabulation of using content immediately corresponding to arrestment.
Figure 20 is expression content whole and the figure that reproduces the relation of using content immediately.
Embodiment
Use figure that embodiments of the invention 1 are described below.
In the present invention, by network during,, realize shortening the purpose that client computer is selected behind the index of the content that will reproduce the time before the reproduced image with the use amount of client computer one side storage area minimum by the content of client computer playback server.
Fig. 1 is the overall diagram of apparatus of the present invention.110,120 and 130 is record cells of sharing content by network 100.Have, so-called content comprises photo that the TV programme recorded and film, user take, the music by network download and the music of duplicating from the CD (CompactDisc) that buys etc. again.In addition, content also can comprise the data of the content of representing contents such as programme information itself etc.In order to share, in posting field, have index zone 111 and content area 115.
Content area is the zone of recorded content, for example under the situation of recording TV program, is recorded in the one's respective area.The index zone is in order to share by network, the zone that is kept as index with the URL (Uniform Resource Locator) of the position on the exercise question of representing content and content, the network etc.Be connected between all record cells of network, also can be synchronous for making index, have same index.
Fig. 5 is the example of index.
From 112 to 114 is index of the URL of expression content AAA, content BBB and content CCC position.For example in index 112 as can be seen, can obtain content AAA from record cell 1.112 URL is simple and easy statement in addition, and the URL as using wants classification, in addition also can the recording document name and its other information etc.
116 and 117 is contents.The 118th, the content of reproduction immediately of speciality of the present invention.The 118 first head part of content C particularly are to reproduce immediately with the long length of content.In addition, it is when client computer one side user indicates reproduction that what is called is reproduced with content immediately, remains on the content in client computer one side in order directly to begin to reproduce.Long as the reproduction immediately of reproducing immediately with content with content-length, set for and finish content than server one side to send the time before of preparing long.
In addition, so-called server one side is a side that keeps content, and so-called client computer one side is to reproduce content one side.For example in Fig. 1, for content AAA, record cell 1 is server one side, and record cell 2 and record cell 3 are client computer one sides.Content BBB is also identical.For content CCC, record cell 2 is server one sides, and record cell 1 and record cell 3 are client computer one sides.
Fig. 2 and Fig. 3 are the flow charts of the action of expression apparatus of the present invention.Fig. 2 represent client computer one side receive reproduce immediately finish with content before, Fig. 3 represents to reproduce the situation of content.
At first describe reproducing immediately with the shared flow process before of content with Fig. 2.In server one side,, just detect the start-up time (201) that is used to start the record cell needs in case begin to handle by dropping into power supply etc.In Fig. 4, to describe in detail 201 steps.In addition, 201 steps also can be when dropping into power supply etc. be not each execution under the situation.
Server one side recorded content (202) then.This processing for example function with the recorded content of recording TV program etc., general record cell is identical.Server one side makes the index (203) of content then.Under the situation that index has existed, also can upgrade.
112 and Fig. 5 of Fig. 1 is the example of content indexing.When making or upgrade index, server one side is index and client computer one side synchronous (204 and 214).The synchronous timing that generates index may not be make index at once after, also can for termly, want synchronous index to accumulate to a certain degree after, determine the time etc. again.
In addition, there is the situation that becomes server one side in client computer one side, so the synchronous triggering of this situation is carried out from client computer one side as from other content.In synchronously, carry out duplicating of index in the mode that the index of all record cells is equal, also can import other method for synchronous according to the purpose difference.
For example, under the situation of not wanting to make content CCC in record cell 3, to reproduce, become record cell 1 and record cell 2 do not provide structure from the index of content CCC to record cell 3.So record cell 3 is not owing to knowing the existence of meaningful CCC, so can not reproduce from index.
Client computer one side sends immediately and reproduces with requests for content (215) then.Record is reproduced under the situation of the URL that uses content immediately in index, and client computer one side is implemented to reproduce immediately to use requests for content.Server one side in case receive is reproduced immediately with requests for content (205), server one side will since start-up time measures requirement, reproduce content immediately with content length, send (206) as reproducing immediately with content.Client computer one side joint is received to reproduce immediately and is used content, is kept at content area (216).
With Fig. 3 the flow process of reproducing the content situation is described below.
In client computer one side, the user for example uses operation screen shown in Figure 6, selects index (311).So client computer one side direction server one side sends and starts request (312).Starting request also can the affirmation of double as for starting.For example, server one side can directly send content receiving under the situation that moment of starting request started.
In this case, the notice of finishing the notice of startup or having started is directly sent to client computer one side.So client computer one side is not reproduced to reproduce immediately and is used content, and can directly reproduce the content of sending from server.In this case, client computer one side does not implement 313,315 from request content ahead.
Under the situation that server one side is not activated in 302, begin to start (303).This also can be to use the startup of WOL.In WOL, be to send the specific information bag that is called magic packet from other equipment by network interface, start the structure of main body through network interface.
Then, finish, then send to start and finish notice (304) to client computer one side that has started book server in case start.In 312,, then reproduce the content (313) of reproduction immediately that is recorded in client computer one side in case the transmission of client computer one side direction server one side starts request.The position of reproducing with content is logged in the index as URL immediately.Because URL is in this record cell, so network address also can be used as local host (local host).Start the notice of finishing (314) in case receive, then reproduce the subsequent content of using content and obtaining immediately, carry out contactless ground and reproduce (seamless-reproduced) by network 315 laggard being about to.
At first, make the request of subsequent content, the further part (315) with content is reproduced in request immediately.With Fig. 7 315 steps are elaborated.Then, the request with subsequent content sends to server one side (316).Server one side joint is received the request (306) of subsequent content, makes the further part that reproduces immediately with content from content, sends (307) as subsequent content.Cut out content by using, make subsequent content from the byte long ahead of content or suitable time.
In case client computer one side joint is received subsequent content (317), connect immediately and reproduce with content and subsequent content, carry out seamless-reproduced (318).Seamless-reproduced is originally to be one and be divided into two content, the processing of reproducing as a content.In reproducing content, particularly in image, there is no need all data are launched in main storage.Owing to generally be the data about the several seconds of reproduction needs to be read successively reproduce, so, can only change the origin of reading for seamless-reproduced.
Fig. 4 represents the flow process that start-up time of 201 is measured.In case drop into power supply, then hardware-initiated (401) to record cell.Then, os starting (402).In case os starting or startup to a certain degree, then since application software or similar its software can start, so the mensuration application software of start detection start-up time begins to measure start-up time (403).
Start various application software (404) then.In case necessary software all starts, and then finishes startup (405), carve at this moment and measure application software terminating operation (406).In 405 steps, need carry out sending the preparation of content by network.
Calculate start-up time (407) then.In the calculating of start-up time, the time that will be used for hardware and os starting is added in the start-up time of mensuration.Owing to can not measure the time that is used for hardware and os starting sometimes, also can when dispatching from the factory, set in advance.
Can measure the start-up time as hardware or operating system, then also can use as described value with the value of measuring.In addition, also can constitute start-up time with common value replacement.The device that also can for example make grade 1 is that 5 seconds, the device of grade 2 are 10 seconds, and the grade point of setting when dispatching from the factory is as using start-up time.
Fig. 5 is the key diagram of index.In the present example, between record cell, share 5 contents.Give context number 501 on each content, the name of expression content in 502.The 503rd, the URL of content, the 504th, the corresponding reproduction immediately URL of content.In the present example, network address is: localhost, this expression is present in the record cell that keeps index.The 505th, reproduce length immediately with content.
Fig. 6 is that the example of (311) selected in the expression index.The 601st, the picture of TV etc., the 602nd, content name, the 603rd, the writing time of content, the 604th, the date and time of recorded content, the kind of 605 expression contents.The 606th, be used for the button area of the details of displaying contents, selecting to show 608 such buttons in 606.Also show 609 confirming button this moment, in case press 609 confirming button, shows details.The 607th, can move up and down the radio check mark (focus) of chosen content.In a single day in radio check mark, press the reproduction button of remote control, then reproduce this content.
Fig. 7 is the detailed process that makes subsequent content request 315.At first, the setting by record cell etc. are judged whether all to reproduce immediately and are reproduced with contents (701).Under situation about all reproducing, because from the further part request content, so from reproducing the starting position (702) of calculating content immediately with the length gauge of content.The starting position of so-called content be for example with whole length of content as under 100 the situation, be decided to be 5 as the length that will reproduce immediately with content, the starting position of content is 6 so.
On the other hand, stop halfway reproducing and reproduce immediately, determine to reproduce the stop position (703) that reproduces immediately with content with under the situation of content.Reproducing stop position is set in than the long position of time that is used for obtaining from server one side the content needs.Calculate starting position (704) from reproducing stop position then.The starting position is identical with 702, is decided to be near after the reproduction stop position.Make subsequent content request (705) then from the starting position that calculates.Describe in detail with Fig. 8 about the subsequent content request that makes.
Subsequent content request is made of the starting position (803) of the chronomere of the starting position (802) of the byte unit of the URL801 of content, content or content at least.As 802 and 803 expression same positions, also can two all put down in writing.The URL that the URL of content equals 503.The starting position of content is specified near reproducing and is reproduced immediately with after the byte location or the position of time of end of text.In Fig. 8, reproduce immediately with content in 48325949 bytes or end of reproduction before 15.5 seconds.In addition, as the content starting position being decided to be 0 byte or 0 second, subsequent content request then is the common content requests from beginning to reproduce ahead.
Fig. 9 is the figure that flows that is illustrated in the data when reproducing content and reproducing with content immediately.900 expression client computer, one sidelights record unit, 910 expression servers, one sidelights record unit.In case instruction content reproduces, and reproduces at first immediately with content and reads to main storage 902 from the posting field 903 of client computer one side, reproduces with image and sound recapiulation 901.In case arrive the terminal point or the stop position that reproduce immediately with content, be transformed into follow-up content with reading object.Follow-up content is from the posting field 912 of server one side, by network interface 911 and network interface 904, read in the main storage 902,, then reproduce immediately with content and continue to reproduce with image and sound recapiulation being connected to reproduction immediately on the main storage with on the terminal point of content.
Figure 10 is the figure that represents the relation of content whole, the content of reproduction usefulness immediately and subsequent content from the viewpoint of length.Length is byte long or time in addition, when all is same figure.The 1001st, content whole, length are t1.The 1002nd, to reproduce immediately and use content, length is t2, the 1003rd, subsequent content, length are t4.Wherein, have overlapping t3 in 1002 and 1003.T3 uses as obtaining subsequent content time enough and to spare before.
For example, use reproduction of content finish time reproducing immediately, follow-up content is recorded the unit as reaching client computer one sidelights, and t3 also can be near 0 value., send by network and the situation of received content under, be provided for absorbing the buffer of the fluctuation of network service speed usually.This buffer is equivalent to t3.Buffer also can be the buffer that is used for other purposes in addition.
Figure 11 is under to the situation of duplicating conditional content, and is identical with Figure 10, represents content whole, reproduces figure with the relation of content and subsequent content immediately from the viewpoint of length.In addition, content 1101 is duplicated freedom for first head part,, limits duplicating after the time through t2.
Under these circumstances, reproduction must be decided to be t2＞t4 with content 1102 immediately.Under the situation of t2＜t4,, copy limit uses content because can not sending to reproduce immediately sometimes to client-side.In addition, because the time that t2 is the person of making of content to be determined, so can be the value that some leeway are arranged in t5.For example t2=120 is during second, and the possibility of start-up time that can all cover general device is very big.T6 and t7 are equivalent to t3 and the t4 of Figure 10 respectively.
Figure 12 is the flow process of the situation after the server one side deletion content.In a single day server one side deletes content (1201), from content area deletion content.Then, server one side is upgraded index (1202).Whether in index, append the information that URL to the content of having deleted has deleted or deleted.
Then, make index ((1203 and 1213) synchronously in server one side and client computer one side.Client computer one side compares index and reproduces immediately and use content, exist or there are (1214) in the content that records the meaning of deletion in index in case confirmed in index reproducing immediately of not record, delete this from posting field and reproduce immediately with content (1215) with content.
By keep reproducing immediately to use content on each record cell, its effect is like this: do not wait server one sidelights record unit starting to finish, client computer one sidelights record can directly be reproduced content on the unit.In addition, be the degree of the start-up time of server one sidelights record unit by making the length of reproducing immediately with content, have the effect of the posting field of saving client computer one sidelights record unit.
The embodiment 2 of second embodiment of the present invention is described to Figure 20 with Figure 13 below.In addition, the difference with embodiment 1 is: will reproduce immediately to remain in other record cells and under the situation that stops to reproduce with content near the content the stop position is used as reproducing with content immediately.To keep immediately reproducing record cell with content below is called maintenance and reproduces immediately and use the content record unit.
Figure 13 is the overall diagram of embodiments of the invention 2.With the difference of Fig. 1 be: do not keep the equipment 1370 in the zone of content to be connected on the network 1300.1310,1330 and 1350 is record cells of sharing content by network 1300.The 1370th, share the television set of contents by network 1300, with 1310,1330 and 1350 difference be: the zone that does not keep content.In addition, the television set in this explanation, record cell are substantially the same terminals.Reproducing immediately under the situation with the zone of content having maintenance on 1370, is the formation identical with 1310 record cell, and difference is not keep content body.In addition, in this formation since 1350 be start-up time early or the record cell that always starts, so use the content record unit, compare with other record cells as there being reproduction immediately to reproduce immediately with the maintenance of content, have many contents of reproduction immediately.
The 1311st, the posting field of the URL of maintenance content.From 1312 to 1314 is index of URL of the position of expression content AAA, content BBB and content CCC.For example, in index 1312, as can be seen, can obtain content AAA from record cell 1.In addition, 1312 URL is simple and easy statement, and the URL as using wants classification, in addition, and also can the recording document name and its other information etc.From 1315 to 1317 is respectively the URL that reproduces the usefulness content immediately that is used to reproduce content AAA, content BBB and content CCC.The 1318th, the content area of recorded content main body.1319 and 1320 is contents.
1330 expression record cells 2 are with record cell 1 (1310) same formation.1350 expression record cells 3 with record cell 1 (1310) same formation, but in the present example, are preserved to reproduce immediately in content area 1358 and are used content.For example, comparing with record cell 2 with record cell 1, the toggle speed of record cell 3 is compared with record cell 2 soon or with record cell 1, under the general long situation of the time that starting of record cell 3, television set 1370 obtains after the content time that reality obtains content from request, and the shortest possibility of record cell 3 (1350) is very big.Therefore, select record cell 3 to use the content record unit, use content, then after user's reproduction request, can at first begin to reproduce, reproduce from other record cells thereupon from record cell 3 as keeping reproducing immediately as keeping reproducing immediately.In addition, also can in content area 1358, preserve content body.The selection of reproducing immediately with the content record unit with 1411 pairs of maintenances of Figure 14 describes.
The 1370th, there is not the television set in the zone of recorded content.Remain on the memory 1371 from the URL1372 to 1374 of each content with from 1375 to 1377 of URL ahead.In addition, 1371 also can be in the HDD beyond the memory etc.
In above formation, for example on record cell 1 (1310), make under the situation that content CCC begins to reproduce, because content body is not on content area 1318, so need obtain from other equipment.Cross index 1314, the URL of content CCC is a record cell 2 (1330), sends content by network requests.Simultaneously the URL (1317) of the first head part of content CCC is a record cell 3, so to the first head part (1361) of record cell 3 request content CCC.Record cell 3 with content ahead portion C CC (1361) send to record cell 1, record cell 1 reproduces after receiving.In addition, in a single day record cell 1 receives the content to record cell 2 requests, and content elder generation's head part (1361) and content body (1339) are carried out contactless and reproduced.In addition, under the situation of implementing to narrate later about midway reproducing again, be added on the foregoing elder generation head part, partly keeping of content midway as reproducing with content immediately.At this moment, reproduce immediately to become sometimes a plurality of situations is arranged after a content with content.
With Figure 14 the basic procedure of embodiment 2 is described below.Basic procedure can be divided into three from big aspect.It at first is the selection course 1410 that keeps reproducing immediately with the content record unit.This process is only carried out once just passable, also can repeatedly carry out according to user's indication or regular timing.Next is the shared procedure in advance 1420 of content.This process was carried out in the moment of new recorded content or regular timing.Be reproduction of content process 1430 then.In this process, carry out reproduction of content.
Below, describe basic procedure in detail.At first in the selection course that keeps reproducing immediately with the content record unit, from the record cell of the content that can write down a plurality of existence, select the record cell (1411) that should keep reproducing immediately with content.The benchmark of selecting is adducible be toggle speed time scale fast or that in a day, start long and power consumption low.At least select one as keeping reproduction content record unit immediately with these parameters.Then, with other record cell (1412) of the result notification selected.The record cell that has received the result who selects makes table shown in Figure 15 and preserves.Then, when recording action etc., update content as record cell, record cell update content tabulation (1421).Contents list and other record cells and television set are shared.
Then, keep reproduction immediately to obtain to reproduce with content (1422) immediately with the content record unit.The method that obtains has following two kinds.First method is: the record cell after the tabulation of recorded content etc. and update content, be used in the RUL that the update notification of explanation in 1502 is used, and the update notification of content is kept reproducing immediately using the content record unit.Keep reproducing immediately with the content record unit and obtain to reproduce immediately to use content according to notice.Second method is: keep reproducing with the content record unit immediately in a single day tabulating by update content, detect and append content, then obtain the corresponding content of reproduction immediately.In addition, content and reproduce immediately with the correspondence of content with shown in Figure 5 corresponding identical, the localhost with 504 changes to the network address of the record cell of maintenance content.In a single day in addition, detect the deletion content in 1421, discarded this reproduces immediately and uses content in 1422.
As making television set or record cell reproduce content, then reproduce immediately and reproduce then with content (1431) by network by network.In 1431 steps, simultaneously other record cell requests are sent content.After this, arrive from the record cell that keeps content body as content, the content in continuing to reproduce in 1431 is carried out and is reproduced (1432).More than finish processing.In 1431, the content in the reproduction also can be interrupted midway.In 1431, the content in also can obtaining to continue to reproduce also can obtain to reproduce immediately with content and content body provisionally simultaneously.
In addition, also may not carry out, also can carry out by block (block) independent repetition separately according to 1410,1420,1430 order.
With Figure 15 the result's who selects of each record cell maintenance table is described below.The 1501st, the terminal number on this table only has 1 and 2 in this table.The 1502nd, use URL to the content update notice that keeps reproducing immediately with the content record unit, can the update notifications content with this URL.1503 expressions keep reproducing immediately the priority position with the content record unit, for example set and notify when only upgrading a content, 1511 contents of announcement high to the priority position upgrade, and as setting two contents of update notifications, then 1511 and 1512 contents of announcement are upgraded.The 1504th, keep reproducing immediately start-up time with the content record unit.
This time and start-up time poor that keeps the record cell of content body are should be with content as the length of reproducing immediately with the content of content maintenance.For example, be 1.5 seconds 1511 start-up times, as keep be decided to be 20 seconds the start-up time of the record cell of certain content EEE, then from keep reproducing immediately with behind the content record unit starting till keep content EEE record cell to start, have 18.5 seconds.Therefore, be more than 18.5 seconds as reproducing with content, then in reproducing immediately, keep the record cell startup of content to finish with reproduction of content, can send content.
The record cell that keeps content concerning the user, can be watched content as sending follow-up content after 1.5 seconds.Comprise the setting-up time of network above-mentioned start-up time.In addition, owing to do not take the buffer that needs in the transmission of appearance and reception, coding or the decoding into account, so the time of aforementioned calculation need be considered their time.The structure of update notifications content also can be utilized the structure that is used for sharing content body or contents list.For example,, detect the renewal of content, also can obtain to reproduce immediately to use content by the update content tabulation.
Describe with the flow process of Figure 16 when reproducing content below.As initial condition, share the index of content.So-called server one side is meant the terminal of the record cell that keeps content etc., and so-called client computer one side is meant the terminal of the television set of watching content etc.
Once you begin handle the index (1631) of the content that the selection of client computer one side will be reproduced.With Figure 17 index is elaborated.Use the content record unit for server one side with keeping reproducing immediately then, send to start by network and ask (1632).Keep reproducing with content record unit and server one side immediately receiving startup request (1621 and 1611) respectively.Under the situation that server one side has started, finish notice owing to there is no need to reproduce to reproduce immediately use content, server one side directly to send to start, client computer one side is directly from server one side acquisition content.
Then, keep reproducing immediately, send to start to client computer one side and finish notice (1623) with content record unit starting (1622).In a single day client computer one side receives to start finishes notice (1633), at first in order to reproduce immediately with content record unit (1634) from keeping reproduction immediately to use the content record unit to obtain content, will reproduce immediately to send to maintenance with content requests.Keep reproducing immediately with the reception in a single day of content record unit and reproduce with content requests (1624) immediately, then begin to send reproduction content (1625) immediately.Client computer one side then begins to reproduce immediately with reproduction of content (1636) in case reception is reproduced immediately with content (1635).1634,1624,1625,1635 steps also can reproduced with carrying out repeatedly in the reproduction of content immediately.
In case sending to start, startup of server (1612) then, server one side direction client computer one side finish notice (1613).Client computer one side is finished notice (1637) in case receive startup, then makes follow-up content requests (1638).So-called follow-up content is the content that continues to reproduce immediately with content playback, and for example reproducing with content immediately is from ahead under the situation of k byte, asks since the k+1 byte as follow-up content.Follow-up content may not be from reproducing immediately with after the end of text, reproducing immediately and partly repeat also passable with content and subsequent content.
Then, client computer one side sends subsequent content request (1639).In a single day server one side receives subsequent content request (1614), then sends subsequent content (1615).In a single day client computer one side receives subsequent content (1640), then sends to stop to send immediately to reproduce with content requests (1641).1641 may not be the transmission that stops to ask, and for example, also can substitute transmission with the connection of cutting off network and stop request.Keep reproduction immediately to keep reproduction with content requests (1626) in case reception stops to send, then stop transmission and reproduce with content (1627) immediately with the content record unit.Client computer one side is then reproduced immediately with content and is proceeded to reproduce (1642) in the 1640 follow-up contents that receive.1642 also can before 1641, carry out in addition.Above end process.
With Figure 17 concordance list is described below.
The 1701st, the context number in the tabulation has 1 to 5 in this tabulation.The 1702nd, the content name.The 1703rd, be used to obtain the URL of server one side of content.The 1704th, be used to obtain to reproduce immediately the URL that uses content.The 1705th, reproduce the time with content immediately, when for example being content AAA, reproducing immediately with content and can obtain 30 seconds at most.
With Figure 18 the reproduction immediately supporting to stop to reproduce content and the reproduce content again flow process with content is described below.At first client computer one side stops to reproduce (1831).Then, stop to send request (1832) in the transmission of client computer one side direction server one side.Server one side then stops to send (1812) in case reception stops to send request (1811).In addition, the client computer one side position that will stop to reproduce sends to maintenance and reproduces immediately with content record unit (1833).Keep reproducing immediately in a single day receiving stop position (1821), send immediately to server one side and reproduce with content requests (1822) with the content record unit.
Reproduce immediately with content requests is the content of one side start-up time of server of the content of request start-up time of beginning server one side from stop position or stop position front and back.Reproduce immediately with content requests (1813) in case receive, server one side is used content as reproducing immediately, the content of the length of being asked is sent to maintenance reproduce immediately, receive the content (1823) of reproduction immediately that receives with the content record unit with keeping reproducing immediately with content record unit (1814).The content that receives is kept at content area, upgrades the tabulation (1824) that content is used in the reproduction immediately that keeps simultaneously.In 1833 destinations that send stop position also can be server one side.In this case, server one side sends to maintenance with stop position and reproduces immediately and use the content record unit.Keep reproducing immediately and continue to carry out 1822 later steps with the content record unit.
With Figure 19 the tabulations of reproducing with content immediately in 1824 renewals are described below.From 1901 to 1903 with identical to 1703 from 1701.The 1904th, reproduce the URL with content immediately, in a single day client computer one side visits this URL, compares with the address 1905 of client computer one side, can obtain the corresponding entity 1906 that reproduces immediately with content.For example, certain device access reproduce immediately when use URL1904, be one as reproducing immediately with content, can send content corresponding to URL, but exist under a plurality of situations reproducing immediately with content, send reproduction content immediately corresponding to arrestment 1905.In addition, for the acquisition request of the equipment of the tabulation of never putting into arrestment, send content ahead from beginning.
Below, with Figure 20 to content whole and the relation of reproducing immediately with content describe.2000 expression content whole.From 2001 to 2004 expressions are reproduced immediately and are used content, and particularly 2001 is to reproduce immediately to use content, and from 2002 to 2004 is to reproduce content midway again.In addition, under the situation that each content does not overlap, carry out two contents simultaneously and record, another content image pattern 20 separates like that, then can make to reproduce immediately to use content.In this case, can use two tuners simultaneously.
Like this, remain in the record cell different, have shortening from reproduce the effect of back in client computer one side indication to the actual time before beginning to reproduce with the record cell that keeps content body by reproducing immediately with content.In addition, stop position notice is kept reproducing immediately use the content record unit, by obtaining near the content the stop position from server one side, have to make the content that the stopped effect of reproduction again at high speed.
Claims (24)
1. content sharing means, it has the function of sharing content by network, it is characterized in that, comprising:
The unit of the time that maintenance startup content sharing means needs;
Send the unit of the content of the time be equivalent to start needs in advance to other devices;
Make and upgrade the unit of the index that remains on the content in the content sharing means; And
The unit that index and other guide sharing means are shared,
Send the content of the time that is equivalent to described startup needs in advance to the other guide sharing means.
2. content sharing means as claimed in claim 1 is characterized in that,
Unit with time of the startup needs of measuring described content sharing means.
3. content sharing means as claimed in claim 1 is characterized in that,
Have making and upgrade the unit of the index that is equivalent to start the content that needs the time.
4. content sharing means as claimed in claim 3 is characterized in that,
Has the unit that in described index, keeps the network address of content.
5. content sharing means as claimed in claim 3 is characterized in that,
To be equivalent to described startup needs the content indexing of time, is included in the zone after the content indexing that keeps in the described content sharing means expanded to manage.
6. content sharing means as claimed in claim 1 is characterized in that,
To be equivalent to described startup and to need the content of time and other devices to share in order to make in advance, comprise start-up time in index, other devices are equivalent to the content of start-up time by request to be shared in advance.
7. content sharing means, it has the function of sharing content by network, it is characterized in that, comprising:
From the other guide sharing means, obtain the unit of index;
Obtain the unit of a part of content in advance from the other guide sharing means;
Obtain the unit of the further part of the content of acquisition in advance from other guide sharing means with content,
When the content of reproducing by described index appointment, reproduce the content that obtains in advance, after the content that obtains in advance, continue to reproduce the further part of content.
8. content sharing means as claimed in claim 7 is characterized in that,
The described a part of content that obtains in advance is the content that is equivalent to the length of the start-up time that the content sharing means provides.
9. content sharing means as claimed in claim 7 is characterized in that,
The described a part of content that obtains in advance is the content that is expressed as the content that should obtain in the shared content index in the content sharing means in advance.
10. content sharing means as claimed in claim 7 is characterized in that,
By when obtaining content, specifying the length that is equivalent to from the content start time that the content sharing means obtains, obtain a part of content in advance.
11. content sharing means as claimed in claim 7 is characterized in that,
When reproducing content, indication starts the other guide sharing means, reproduces the content that obtains in advance, continues to reproduce the further part of content after the content that obtains in advance.
Share the content function 12. the content sharing method of a content sharing means, this content sharing means have by network, it is characterized in that, comprising:
For the index and the other guide sharing means of content are shared, make or be updated in the step of the index of the content that keeps in the content sharing means; With
Send the step of the content of the start-up time that is equivalent to the content sharing means in advance,
Transmission is corresponding to the content of index.
Share the content function 13. the content sharing method of a content sharing means, this content sharing means have by network, it is characterized in that, comprising:
Obtain the step of a part of content in advance from the other guide sharing means;
With remain on content indexing in the content sharing means specify the content that will reproduce, and instruction reproduce the step of content;
The step that the content that obtains in advance by reproduction instruction is reproduced; With
Obtain the step of the further part of the content of acquisition in advance from other guide sharing means with the content that will reproduce,
After the content that obtains in advance, continue to reproduce the further part of content.
14. content sharing means as claimed in claim 1 is characterized in that,
Comprise and from described other guide sharing means, select specific content sharing means, as the means that keep a content part promptly to be equivalent to starting the sharing means of the content that needs the time.
15. content sharing means as claimed in claim 14 is characterized in that,
The selected cell of described specific content sharing means is to compare with the other guide sharing means, selects in every day long method start-up time.
16. content sharing means as claimed in claim 14 is characterized in that,
The selected cell of described specific content sharing means is to compare with the other guide sharing means, selects the fast method of toggle speed.
17. content sharing means as claimed in claim 14 is characterized in that,
In the selected cell of described specific content sharing means, comprise the unit of the content sharing means of selecting being notified other content sharing means.
18. content sharing means as claimed in claim 14 is characterized in that,
Comprise and when obtaining content, the acquisition of content is notified the unit of the content sharing means of selecting.
19. content sharing means as claimed in claim 1 is characterized in that, comprising:
The unit of content has been appended in detection in described index; And the unit that obtains the first head part of detected content in advance.
20. content sharing means as claimed in claim 14 is characterized in that, comprising:
Receive the unit of the notice of the described content sharing means of selecting; And the network address that will obtain a part of content that obtains in advance from the content sharing means of selecting is logged into the unit in the described index.
21. a content sharing means, it has the function of sharing content by network, it is characterized in that, comprising:
Obtain the unit of index from the other guide sharing means;
Obtain and reproduce the unit of a part of content from the other guide sharing means;
Obtain content, the unit of after described a part of content, proceeding to reproduce from the other guide sharing means.
22. content sharing means as claimed in claim 21 is characterized in that, comprising:
Interrupt the unit of described reproduction of content; And the unit that the information of the position of interrupting is sent to the other guide sharing means.
23. content sharing means as claimed in claim 1 is characterized in that, comprising:
Receive the unit of the information of the position of interrupting from the other guide sharing means; Near and the unit of the content the position that obtains to interrupt from the other guide sharing means.
24. content sharing means as claimed in claim 1 is characterized in that, comprising:
Detect and send the unit that content is interrupted; Near and the unit of the indication of the content the other guide sharing means sends the detected position of acquisition.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005111511 | 2005-04-08 | ||
| JP2005111511 | 2005-04-08 | ||
| JP2006018366 | 2006-01-27 |
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| CN1845551A true CN1845551A (en) | 2006-10-11 |
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| CN 200610072584 Pending CN1845551A (en) | 2005-04-08 | 2006-04-07 | Contents sharing apparatus and contents sharing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101193345B (en) * | 2006-11-24 | 2012-08-08 | 华为技术有限公司 | Terminal and its content share method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101193345B (en) * | 2006-11-24 | 2012-08-08 | 华为技术有限公司 | Terminal and its content share method and system |
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