CN100512434C - Method for displaying preview of programs in digital multimedia broadcast - Google Patents
Method for displaying preview of programs in digital multimedia broadcast Download PDFInfo
- Publication number
- CN100512434C CN100512434C CNB2006101119827A CN200610111982A CN100512434C CN 100512434 C CN100512434 C CN 100512434C CN B2006101119827 A CNB2006101119827 A CN B2006101119827A CN 200610111982 A CN200610111982 A CN 200610111982A CN 100512434 C CN100512434 C CN 100512434C
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- program
- media stream
- descrambling
- user
- preview
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Abstract
After the user end starts the digital multimedia broadcast service, enters into the electronic program guide and selects the programs not being subscribed, the method comprises: a) terminal starts the time-terminated module to count time, and starts the decoding and descrambling module to decode and descramble the media stream, and then outputs the decoded and descrambled media stream to the player in order to provide a preview for user; b) when the preview time reaches the threshold preset by the time-terminated module, the decoding and descrambling to the media stream are stopped; c) ending the preview of programs.
Description
Technical field
The present invention relates to the DMB field, the method for display program preview in particularly a kind of DMB.
Background technology
In DMB, the user is according to electronic program guides (EPG:Electronic ProgramGuide, the system that has also is referred to as electronic service guidebooks, the tabulation of electron service instruction or electronic programming) select oneself to want channel and the program watched, order then.From user perspective, before final definite the order, hope can be seen the preview fragment of program, so that programme content is had an impression intuitively.In the middle of present digital multimedia broadcasting system, can in electronic program guides, comprise the previewing programs fragment, the purpose of preview is exactly after the user enters electronic program guides, selected a program of not ordering as yet, terminal plays to the user with the fragment of this program and watches, allow the user except the program introduction of watching literal, can also an impression intuitively be arranged to programme content, so that the user determines whether to order this program.This previewing programs fragment is the content that operator makes in advance, adds in the electronic program guides in system side then.
In the resourceful system of cable digital TV equiband, in electronic program guides, comprise the previewing programs fragment of making in advance, the distribution of bandwidth resources there is not big influence.But in mobile multimedia broadcast system such as mobile TV system, because wireless bandwidth resource is limited, if in electronic program guides, comprise a large amount of previewing programs fragments, the available bandwidth of multimedia programming Media Stream is significantly reduced, be unfavorable for effective use of bandwidth resources.
Summary of the invention
The technical problem to be solved in the present invention provides the method for display program preview in a kind of DMB that reduces occupying system resources and bandwidth.
For addressing the above problem, the invention provides the method for display program preview in a kind of DMB, start digital multimedia broadcasting service at user's operating terminal, enter electronic program guides, behind the program of selecting not order, carry out following processing:
(a) the starting terminal module of prescribing a time limit picks up counting, and start the deciphering and descrambling module to the Media Stream of the selected program that receives be decrypted, descrambling, export player plays to, for this program of user's preview;
When (b) time of the selected program of user's preview arrives the thresholding in limited time of module settings in limited time, stop that Media Stream to selected program is decrypted, descrambling;
(c) previewing programs finishes.
Described step (a) is decrypted at the Media Stream to the selected program that receives, descrambling simultaneously, also the Media Stream of deciphering and descrambling stores in the memory, as the previewing programs fragment.
Described step (b) stops that Media Stream to selected program is decrypted, behind the descrambling, the terminal repeat playing is stored in the described previewing programs fragment in the memory, withdraws from this previewing programs up to the user, again execution in step (c).
After described step (c) previewing programs finished, the user can carry out the repetition preview by operating terminal, and the described previewing programs fragment that will store this moment again outputs to player plays.
After thresholding was prescribed a time limit in the arrival of user's preview time in the described step (b), the viewing area of previewing programs fragment originally can show ordered information, the logo of operator or advertising message.
During the player plays previewing programs, can be displayed in full screen, electronic program guide information is hidden; Also can on screen, show together by the electronic program guide information relevant with this program.
During described step (a) media stream, withdraw from this previewing programs as user's operating terminal, at this moment, module resets in limited time, and the deciphering and descrambling module stops the Media Stream of this program is handled, and stops to play, and finishes.
In the present invention, system side need not to make in advance and store a large amount of previewing programs fragments, directly intercepts a fragment but adopt by terminal in program media stream, presents to user's preview, has saved bandwidth resources greatly, and has alleviated the burden of system side.
Description of drawings
Fig. 1 is the structured flowchart of embodiment of the invention DMB programme prebrowsing system;
Fig. 2 is the flow chart of embodiment of the invention DMB method for previewing programs.
Embodiment
Below in conjunction with accompanying drawing embodiment is described in further detail.
Fig. 1 is a DMB programme prebrowsing system structured flowchart of the present invention, mainly comprise module 130 in limited time, deciphering and descrambling module 140, player 150, memory 180 and control module 190, wherein the Media Stream 120 of program 110 is a program fragment 160 after by deciphering and descrambling module 140 deciphering and descramblings, play to the user with electronic program guide data 170 by player 150, simultaneously program fragment 160 is stored in memory 180.Module 130 qualifications in limited time are to the time of program 110 deciphering and descramblings, by thresholding T decision in limited time in addition.Control module 190 is used for finishing the previewing programs process according to each module of operational coordination of user.
Prescribe a time limit module, memory, deciphering and descrambling module of above-mentioned player all is to realize on terminal.In limited time module, the deciphering and descrambling module can be realized by hardware, also can be a software submodules total playout software under, this can be specifically definite according to actual conditions when making terminal by manufacturer terminal.The deciphering and descrambling module is embodied as with hardware because will handle Media Stream immediately but in general.
Fig. 2 is an embodiment of the invention DMB previewing programs flow chart, and this method mainly comprises following steps:
Step 210: user's operating terminal starts digital multimedia broadcasting service, opens player;
Step 220: the user enters electronic program guides, selects a program of not ordering;
Step 230: control module starts the module of prescribing a time limit and picks up counting, start the deciphering and descrambling module to the Media Stream of the selected program that receives be decrypted, descrambling, export player plays to, simultaneously with this previewing programs fragment of deciphering and descrambling record in the memory;
Terminal after playing deciphering, descrambling Media Stream or during the previewing programs fragment of storage, can be displayed in full screen, electronic program guide information is hidden; Also can on screen, show together by the electronic program guide information relevant with this program.
Step 240: the time of playing this program media stream, control deciphering and descrambling module stopped the Media Stream of selected program is decrypted descrambling when arriving the thresholding in limited time of the module settings of prescribing a time limit;
Step 250: export the previewing programs fragment of preserving in the memory to the player repeat playing;
Step 260: the user withdraws from previewing programs, stops to play, and finishes.
In addition, in step 230, during media stream,, the user do not arrive thresholding in limited time even browsing the time of this program, the user also can withdraw from this previewing programs by operating terminal, at this moment, module resets in limited time, and the deciphering and descrambling module is also no longer handled the Media Stream of this program.
In another embodiment of the present invention, step 210 to 240 is all same as the previously described embodiments, but arrives thresholding in limited time in step 250, stop deciphering and descrambling after, can directly finish previewing programs, repeat playing automatically.But the user can carry out the repetition preview by operating terminal, and output to player plays with the previewing programs fragment of storage this moment again.
In further embodiment of this invention, can not want memory, promptly do not preserve the Media Stream of deciphering and descrambling, prescribe a time limit thresholding not then, normal deciphering and descrambling is play selected program media stream; When thresholding arrives in limited time, play and finish, no Media Stream exports in the terminal player, and the viewing area of previewing programs fragment originally can show orders information, the logo of operator or advertising message etc.
Claims (7)
1, the method for display program preview in a kind of DMB starts digital multimedia broadcasting service at user's operating terminal, enters electronic program guides, behind the program of selecting not order, carries out following processing:
(a) the starting terminal module of prescribing a time limit picks up counting, and start the deciphering and descrambling module to the Media Stream of the selected program that receives be decrypted, descrambling, export player plays to, for this program of user's preview;
When (b) time of the selected program of user's preview arrives the thresholding in limited time of module settings in limited time, stop that Media Stream to selected program is decrypted, descrambling;
(c) previewing programs finishes.
2, the method for claim 1 is characterized in that: described step (a) is decrypted at the Media Stream to the selected program that receives, descrambling simultaneously, also the Media Stream of deciphering and descrambling stores in the memory, as the previewing programs fragment.
3, method as claimed in claim 2, it is characterized in that: described step (b) stops that Media Stream to selected program is decrypted, behind the descrambling, the terminal repeat playing is stored in the described previewing programs fragment in the memory, withdraws from this previewing programs up to the user, again execution in step (c).
4, method as claimed in claim 2 is characterized in that: after described step (c) previewing programs finished, the user can carry out the repetition preview by operating terminal, and the described previewing programs fragment that will store this moment again outputs to player plays.
5, the method for claim 1 is characterized in that: after thresholding was prescribed a time limit in the arrival of user's preview time in the described step (b), the viewing area of carrying out previewing programs originally can show ordered information, the logo of operator or advertising message.
6, the method for claim 1 is characterized in that: during the player plays previewing programs, can be displayed in full screen, electronic program guide information is hidden; Also can on screen, show together by the electronic program guides relevant with this program.
7, the method for claim 1 is characterized in that: during described step (a) media stream, withdraw from this previewing programs as user's operating terminal, at this moment, module resets in limited time, and the deciphering and descrambling module stops the Media Stream of this program is handled, stop to play, finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101119827A CN100512434C (en) | 2006-08-30 | 2006-08-30 | Method for displaying preview of programs in digital multimedia broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101119827A CN100512434C (en) | 2006-08-30 | 2006-08-30 | Method for displaying preview of programs in digital multimedia broadcast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960483A CN1960483A (en) | 2007-05-09 |
| CN100512434C true CN100512434C (en) | 2009-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101119827A Expired - Fee Related CN100512434C (en) | 2006-08-30 | 2006-08-30 | Method for displaying preview of programs in digital multimedia broadcast |
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| Country | Link |
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| CN (1) | CN100512434C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567742B (en) * | 2008-04-23 | 2011-04-20 | 中兴通讯股份有限公司 | Transmitting system, receiving terminal and method of multimedia program preview information |
| CN103108236A (en) * | 2011-11-15 | 2013-05-15 | 中兴通讯股份有限公司 | Method for previewing and playing of mobile television (TV) programs and corresponding system |
| CN104717566A (en) * | 2015-04-06 | 2015-06-17 | 丁铁梅 | Video display method and device |
| JP6450409B2 (en) * | 2017-02-24 | 2019-01-09 | 智慧行動傳播科技股▲分▼有限公司 | Electronic device and decryption program |
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2006
- 2006-08-30 CN CNB2006101119827A patent/CN100512434C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1960483A (en) | 2007-05-09 |
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Granted publication date: 20090708 Termination date: 20200830 |