CN101764992A - Web TV time shift method and device - Google Patents
Web TV time shift method and device Download PDFInfo
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- CN101764992A CN101764992A CN200810207742A CN200810207742A CN101764992A CN 101764992 A CN101764992 A CN 101764992A CN 200810207742 A CN200810207742 A CN 200810207742A CN 200810207742 A CN200810207742 A CN 200810207742A CN 101764992 A CN101764992 A CN 101764992A
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Abstract
The invention discloses a web TV time shift method and device, which realizes to continuously and automatically play the program contents of a channel when shifting channels through keeping the time point information for a step top box to leave one channel and sending a request to play corresponding program on the channel from the time point to a streaming server when receiving a command of reselecting the channel.
Description
Invention field
The present invention relates to a kind of Web TV technology, relate in particular to a kind of method and device that network TV program is carried out time shifting broadcasting.
Technical background
As everyone knows, the conventional television broadcast technology is unidirectional transmission TV programme, and promptly the user is merely able to select the channel that will see and receives in real time, passively on this channel just in live TV programme, and can not select to begin to see from certain time point of this program.That is to say, can not watch continuously because of some reason and to have missed the partial programme content, then can not " review " this part programme content of having play again when the user is watching in the process.Visual angle from the user, an example as shown in Figure 1, the user is live football match program on viewing channel 1 just, a moment before shooting, the user switches to channel 2 and has seen news program a little while, when gaining channel 1 again, just missed the splendid moment of shooting, and can only see from the current live moment.
If time point from concrete TV programme broadcast, as shown in Figure 2, suppose that the user begins program on the viewing channel 1 from 9:00AM, after 9:13AM switches to channel 2 and has seen two minutes, switching to channel 3 again saw three minutes, when gaining channel 1 again, can only be from the program on the 9:18AM viewing channel 1, and 5 minutes the programme content that channel 1 is play in the middle of this all will be missed.
Along with the development of information technology, the Internet has entered huge numbers of families, and people wish to listen to TV reception by the Internet, and the people that develop into of stream media technology provide this possibility.TV has enriched the Internet itself as typical multimedia more with its abundant programme content, and the combination of TV and the Internet becomes development trend gradually, and Web TV arises at the historic moment.
Web TV claims IPTV (Internet Protocol Television) again, be the infrastructure of utilizing broadband internet, with television set, PC and handheld device as display terminal, by set-top box or computer accessing to wide band network, and provide the multiple digital media service that comprises TV programme and the technology of value-added service thereof by Internet protocol (IP).The advantage of Web TV maximum is " interactive " and " watching as required ", the characteristics of traditional tv One-to-All Broadcast have thoroughly been changed, also changed passive in the past television viewing mode, by services such as time shift (Time-shift) TV, interactive TV are provided, the user can realize to TV programme watch as required, with seeing with stopping.
Though utilize the time-moving television technology can allow the user that the program of having play is reviewed, oneself the going of user selected the time point that will review, in other words if the user need begin from specific time point to review, and then must oneself searching and select this time point.
Be example still with the situation among aforementioned Fig. 1, when the user when channel 2 switches back channel 1, the user wishes from shooting preceding that time, being the user began to review from that times that channel 1 switches to before the channel 2, but the user might not know the time point that this is definite, therefore he must retreat program long period of time and browses, and begins to review to find this definite time point.And the user has to repeatedly review some program fragments and could determine this time point sometimes, such as when repeatedly occurring certain similar scene in the program.These all can be reviewed program to the user and bring many inconveniences.
Summary of the invention
One of purpose of the present invention is to propose a kind of Web TV time shift method and device that can carry out continued broadcasting automatically, and by to leaving the record of channel time point, but automatic connection leaves preceding programme content and plays when switching back this channel.
According to a kind of Web TV time shift method of the present invention, comprise step:
A, play program from first channel;
B, when the instruction of receiving from second channel of selection of user, preserve the time point information that leaves first channel;
C, if receive the instruction of choosing first channel once more from the user, then send a request of carrying out time shifting broadcasting based on described time point information; And
D, play from first channel through the program after the time shift.
According to a kind of Web TV time shift device of the present invention, comprise a set-top box that is used for the playing network television program, it is characterized in that: this set-top box also is used to preserve the time point information that it leaves a channel, and when receiving the instruction of choosing this channel once more, send a request of carrying out time shifting broadcasting based on described time point information.
According to a kind of Web TV time shift of the present invention system, comprising:
Streaming media server is used for the network TV program in buffer memory a period of time, and sends program in its buffer memory, the corresponding time period after receiving the time shifting broadcasting request; And
Set-top box, be used to receive and the playing network television program, also be used to preserve the time point information that it leaves a channel, and when receiving the instruction of choosing this channel once more, send a requirement begins to play respective program on this channel from the described time point that leaves this channel time shifting broadcasting request to described streaming media server.
As seen from the above, Web TV time shift method of the present invention and device are when users with channel switches, can carry out record to the time point information that leaves channel, when switching back this channel, can carry out time shifting broadcasting from this time point automatically, thereby realize the continuous broadcast of programme content, the user no longer needs oneself to go to search the program that misses.
By with reference to below in conjunction with the content in the description of the drawings and claims, and along with more complete understanding of the invention, other purposes of the present invention and effect will become clear more and easy to understand.
The accompanying drawing summary
In conjunction with the accompanying drawings the present invention is described in more detail now, wherein:
Fig. 1 shows a kind of variation situation of traditional tv television image when carrying out the channel switching;
Fig. 2 shows traditional tv at the variation schematic diagram that carries out the Pgmtime point that channel play on each channel when switching;
Fig. 3 shows the variation schematic diagram of the Pgmtime point of being play on one embodiment of the invention each channel when carrying out the channel switching;
Fig. 4 shows the workflow diagram of each equipment in the embodiments of the invention shown in Figure 3; And
Fig. 5 shows a kind of variation situation of using Web TV time shift method of the present invention and device television image when carrying out the channel switching.
Embodiment
For existing Web TV, though the service of time shifting broadcasting can be provided, but owing to will be selected by the user from when carrying out time shifting broadcasting, therefore when users with channel switched, the playing programs of being given tacit consent on each channel may remain real-time.If the user gets back to the channel of having seen before, and the content of wanting to continue when leaving this channel just now plays, then must own searching and selection leave the time point of this channel, ask corresponding time shifting broadcasting.Content when Web TV time shift method of the present invention and device then can automatic connection leave this channel is play, just when the user gets back to the channel of having seen before, the content of playing on this channel just in time is the content when leaving this channel just now of having continued.
On the angle of the time point of program, can be with reference to shown in Figure 3, according to one embodiment of the invention, suppose that the user begins program on the viewing channel 1 from 9:00AM, after 9:13AM switches to channel 2 and seen two minutes, switch to channel 3 again and saw three minutes, when gaining channel 1 again, program on the channel of being seen 1 is from 9:13AM, and promptly the user leaves the moment of channel 1.The rest may be inferred, and no matter the user gets back to channel 1,2 thereafter still is 3, and the content of being seen all is to begin to play from the moment that this user leaves current channel for the last time.Like this, the time point that the user does not only need own removal search and the determining content before continuing to review, and can freely between several channels, switch and need not any programme content of fear missing.
According to this embodiment scene of Fig. 3, the workflow that is used for each equipment of playing network television accordingly can be with reference to shown in Figure 4.Wherein, set-top box 3 receives and plays the TV programme that is sent by the IP multicast from IPTV network 1, and streaming media server 2 is used to provide time shifting broadcasting with the TV programme of buffer memory certain hour length simultaneously.The user is chosen in by remote controller or other frequency channel-selection assemblys (not shown) at the beginning and watches TV programme (step S101) on the channel 1.Then, the user selects to switch to channel 2, and at this moment set-top box 3 time point information that will leave channel 1 is saved in its electric program menu that moves (EPG or ElectronicProgram Guide) system, and switches to channel 2 (step S102).Because at this moment channel 2 is selected first, what therefore at this moment channel 2 acquiescences play is institute's program of broadcast in real time on the current point in time.Equally, when the user selects to switch to channel 3, at this moment set-top box 3 time point information that will leave channel 2 is saved among its EPG that moves, and switches to channel 3 (step S103).Because channel 3 also is selected first, what therefore at this moment channel 3 acquiescences play also is institute's program of broadcast in real time on its current point in time.
If at this moment the user selects to switch back channel 1, the time point information that set-top box 3 will be left channel 3 is saved among its EPG that moves, and switches to channel 1.Because channel 1 is once more selected, so leave the time point information of channel 1 before having among the EPG of set-top box 3, set-top box 3 will be asked by the program (step S104) on the time shifting broadcasting channel 1 to streaming media server 2 according to this information.And streaming media server 2 is according to the time point information that comprises in this request, sends programme content in its buffer memorys, that begin from this time point to set-top box 3.No matter the user gets back to channel 1,2 or 3 afterwards, its process is all similar with above-mentioned situation of getting back to channel 1, and concrete visible step S105 shown in S106 and the S107, no longer describes in detail.Simultaneously, in order to realize automatic time shift continued broadcasting when the user is switched any channel repeatedly, what guarantee to be preserved in the EPG of set-top box 3 is the time point information that leaves each channel for the last time all the time.
From user's visual experience, the user is in that time of switching back channel 1, and the picture that meets one's eyes remains its picture when leaving for the last time, as shown in Figure 5.Concerning the user, that sensuously leaves seems that during this period of time program has been fixed, and then continues again after returning to play, and therefore can not miss any content.
Shown in Figure 4 only is a kind of embodiment of the present invention, can carry out multiple variation according to concrete needs in actual applications, Media Stream (comprising the Media Stream through time shift) such as program both can also can send to set-top box 3 by clean culture by multicast, the time point information that leaves channel both can be kept at user side (as set-top box 3) and also can be kept at local side (as streaming media server 2), even can also be with the metadata cache of Media Stream that is used for time shifting broadcasting to set-top box 3, or the like.Because these concrete schemes all can design according to existing IPTV technical standard, and are not the emphasis that the present invention will discuss, therefore repeat no more.
In addition, because each user's conditions of demand are different, therefore whether need when switching, channel carry out automatic time shift continued broadcasting by the solution of the present invention, can set by system default, also can select whether to open this function by set-top box 3 by the user, can also select only this function of binding on some specific channel, such as selecting only when switching back channel 1, to carry out automatic time shift continued broadcasting, change to other channels and still carry out real-time playing programs, at this moment the EPG of set-top box 3 will only note down the time point information that leaves channel 1.
From foregoing description as can be seen, Web TV time shift method of the present invention and device are when users with channel switches, can carry out record to the time point information that leaves channel, when switching back this channel, can carry out time shifting broadcasting from this time point automatically, thereby realize the continuous broadcast of programme content, the user no longer needs oneself to go to search the program that misses.
Should be noted that; the foregoing description is used for explanation and unrestricted the present invention; and; under the prerequisite of the protection range that does not break away from claims; those skilled in the art are to be understood that; to disclosed Web TV time shift method of the invention described above and device, can also on the basis that does not break away from content of the present invention, make various improvement.Therefore, protection scope of the present invention should be determined by the content of appending claims.In addition, any reference marker in the claim should be interpreted as limiting the protection range of claim.
Claims (10)
1. Web TV time shift method comprises step:
A, play program from first channel;
B, when the instruction of receiving from second channel of selection of user, preserve the time point information that leaves first channel;
C, if receive the instruction of choosing first channel once more from the user, then send a request of carrying out time shifting broadcasting based on described time point information; And
D, play from first channel through the program after the time shift.
2. the method for claim 1, wherein step b is that the time point information that will leave first channel is kept at electric program menu (EPG) system that is moved.
3. method as claimed in claim 1 or 2 wherein is to send described request to the equipment that a storage is used for the program of time shifting broadcasting among the step c.
4. method as claimed in claim 3 is that the program that begins from the described time point that leaves first channel is play in requirement in request described in the step c wherein.
5. method as claimed in claim 3, wherein said equipment are streaming media server.
6. Web TV time shift device, comprise a set-top box that is used for the playing network television program, it is characterized in that: this set-top box also is used to preserve the time point information that it leaves a channel, and when receiving the instruction of choosing this channel once more, send a request of carrying out time shifting broadcasting based on described time point information.
7. device as claimed in claim 6, wherein said set-top box are that the time point information that will leave described channel is kept at electric program menu (EPG) system that is moved.
8. as claim 6 or 7 described devices, wherein said set-top box is to send described request to the equipment that a storage is used for the program of time shifting broadcasting.
9. device as claimed in claim 8, wherein said request are that requirement begins to play corresponding program on this channel from the described time point that leaves this channel.
10. Web TV time shift system comprises:
Streaming media server is used for the network TV program in buffer memory a period of time, and sends program in its buffer memory, the corresponding time period after receiving the time shifting broadcasting request; And
Set-top box, be used to receive and the playing network television program, also be used to preserve the time point information that it leaves a channel, and when receiving the instruction of choosing this channel once more, send a requirement begins to play respective program on this channel from the described time point that leaves this channel time shifting broadcasting request to described streaming media server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810207742A CN101764992A (en) | 2008-12-25 | 2008-12-25 | Web TV time shift method and device |
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| CN200810207742A CN101764992A (en) | 2008-12-25 | 2008-12-25 | Web TV time shift method and device |
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| CN101764992A true CN101764992A (en) | 2010-06-30 |
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| CN200810207742A Pending CN101764992A (en) | 2008-12-25 | 2008-12-25 | Web TV time shift method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634540A (en) * | 2012-08-20 | 2014-03-12 | 联想(北京)有限公司 | A control method, a data terminal and a data transmitting device |
| CN105763890A (en) * | 2014-12-18 | 2016-07-13 | 中国电信股份有限公司 | Channel switching method, channel switching apparatus, set-top box and IPTV terminal |
| CN114786021A (en) * | 2021-01-22 | 2022-07-22 | 青岛海信宽带多媒体技术有限公司 | Method and device for controlling playing of live program |
-
2008
- 2008-12-25 CN CN200810207742A patent/CN101764992A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634540A (en) * | 2012-08-20 | 2014-03-12 | 联想(北京)有限公司 | A control method, a data terminal and a data transmitting device |
| CN105763890A (en) * | 2014-12-18 | 2016-07-13 | 中国电信股份有限公司 | Channel switching method, channel switching apparatus, set-top box and IPTV terminal |
| CN114786021A (en) * | 2021-01-22 | 2022-07-22 | 青岛海信宽带多媒体技术有限公司 | Method and device for controlling playing of live program |
| CN114786021B (en) * | 2021-01-22 | 2024-04-05 | 青岛海信宽带多媒体技术有限公司 | Method and device for controlling playing of live program based on intelligent set top box |
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Application publication date: 20100630 |