CN102026036B - Conditional access device and method for implementing electronic program guide (EPG) therein - Google Patents
Conditional access device and method for implementing electronic program guide (EPG) therein Download PDFInfo
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- CN102026036B CN102026036B CN 201010585332 CN201010585332A CN102026036B CN 102026036 B CN102026036 B CN 102026036B CN 201010585332 CN201010585332 CN 201010585332 CN 201010585332 A CN201010585332 A CN 201010585332A CN 102026036 B CN102026036 B CN 102026036B
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Abstract
The invention provides a conditional access device and a method for implementing an electronic program guide (EPG) therein, wherein the method comprises the following steps of: acquiring EPG data including a program list and playing parameter information by the conditional access device; acquiring an EPG application script from the conditional access device by a host, and executing the EPG application script and displaying an executing result by using a browser; and carrying out EPG information interaction between the conditional access device and the host through a communication interface (CI) port, wherein the EPG application script uses a script language which is adaptive with the browser of the host. The invention can broaden the business scope of the conditional access device and expand an implementing carrier of the EPG, is beneficial to the demand of an operator and customizes the personalized EPG with completely uniform style to carry out unified management.
Description
Technical field
The present invention relates to the electronic program guides (EPG) in a kind of digital television techniques, especially relate to a kind of method that in conditional receiving device, realizes EPG, and the conditional receiving device that uses this method.
Background technology
Over nearly 20 years, because for example development of cable TV, satellite television and other digital television system of broadcast technology, the available program of televiewer is selected the hurried growth of number.Today, many televiewers select from a hundreds of television channel possibly.
(Electronic Program Guide EPG) arranges with matrix form and the program of display of broadcast, and can upgrade EPG at any time, to reflect the variation in the program log electronic program guides; Also have, EPG can transmit the very detailed description of each program of listing, can be all spectators comprising performer, broadcast time, classification or type and program in the outline of program, the play and admits or have only adult spectators' admittance.Owing to can store a large amount of programme informations, so can classify or sort out EPG information according to program category or theme usually.This just allows spectators to specify his or she programs of interest type, and only watches these to meet the program inventory of spectators' specified type.
Since the appearance facility of EPG TV user, thereby, at currently marketed set-top box (Set Top Box, STB) and digital TV integrated machine (this EPG binds with television set for Integrated Digital TV, iDTV) general integrated EPG, just be fixed up after dispatching from the factory, different vendor or different classes of television set have the EPG of different-style, are unfavorable for so very much operator's unified management, and are inconvenient to carry out professional expansion.
In addition, condition receives (Conditional Access, CA) device conduct and the personalized closely-related product of operator, be used for controlling the user and watch digital television program (containing audio frequency, video, data etc.) through authorizing, can allow digital-TV operator in television system, the user be carried out authorization control and empowerment management by conditional receiving device, thereby realize the paid service of digital television program.
Current, only as authorized descrambling module, function ratio is more single on function for conditional receiving device, can't the user realizes the requirement of the new function of personalized customization at conditional receiving device.
Summary of the invention
The present invention proposes a kind of conditional receiving device, realizes the method for EPG in conditional receiving device, to satisfy the user realizes the new function of personalized customization at conditional receiving device requirement.
The present invention has adopted following technical scheme to realize: a kind of method that in conditional receiving device, realizes EPG, and it comprises: conditional receiving device obtains the EPG data that comprise the rendition list and play parameter information;
Main frame obtains the EPG application scenarios from conditional receiving device, uses browser to carry out this EPG application scenarios, and utilizes the EPG data to generate EPG; Conditional receiving device and main frame carry out the EPG information interaction by the CI interface; Wherein, the EPG application scenarios uses the script suitable with the browser of main frame.
Wherein, one of them obtains the EPG data to described conditional receiving device from following approach at least: resolve from the transport stream of main frame by the CI interface and obtain the EPG data; Resolve the transport stream of the digital television signal receiver module output that carries from conditional receiving device and obtain the EPG data; From other transport stream resolvers, obtain the EPG data by network.
Wherein, the step of the described EPG of obtaining application scenarios comprises: conditional receiving device and main frame consulting session passage; The utility command that conditional receiving device is initiated the request of an EPG application start to main frame, the utility command that main frame is replied by the EPG application start is made answer; The utility command of main frame by file request be to conditional receiving device request EPG application scenarios, and the utility command that conditional receiving device is replied by file is with the EPG application scenarios or send to main frame.
Wherein, conditional receiving device and main frame all adopt the communication protocol of CI and extension standards thereof; The CI interface is pcmcia interface; The EPG application scenarios is stored in the memory of conditional receiving device inside or external smart card.
Conditional receiving device disclosed by the invention, by CI interface and main-machine communication, this conditional receiving device comprises at least: EPG information collection module, be used for obtaining transport stream by the CI interface from main frame, extract the EPG data that comprise the rendition list and play parameter information; The EPG application manager is used for management EPG data and makes generation EPG when carrying out the EPG application scenarios; The EPG information memory cell is for code and the EPG content information of storage EPG application scenarios; Obtain the EPG application scenarios by main frame from conditional receiving device, use browser to carry out this EPG application scenarios and show execution result, and conditional receiving device and main frame carry out the EPG information interaction by the CI interface; Wherein, the EPG application scenarios uses the script suitable with the browser of main frame.
Wherein, conditional receiving device and main frame adopt and to meet the order of CI communication protocol application layer and carry out the EPG information interaction; The CI interface is pcmcia interface.
Compared with prior art, the present invention has following useful technique effect:
1) traditional E PG just is implemented on set-top box or the television set, and the present invention realizes EPG at conditional receiving device, has not only increased the scope of business of conditional receiving device, has also enlarged the realization carrier of EPG simultaneously.
2) traditional EPG is solidificated on set-top box or the television set, and the style of EPG is different variant because of manufacturer.And the EPG that utilizes the present invention to realize at conditional receiving device is customizable, can be at the demand of operator, and the personalized EPG of customization complete unity style, this is conducive to operator's unified management.
3) traditional EPG is just as the demonstration of programme information, the EPG of the present invention on conditional receiving device can realize more service application, as: can realize the real-time advertising business of operator at EPG, can need at the user, realize the regularly function of broadcast, etc.
Description of drawings
Fig. 1 is the model schematic diagram of " browser-script ";
Fig. 2 is the structural representation that conditional receiving device is realized EPG;
Fig. 3 is conditional receiving device and the information interaction schematic diagram of main frame in realizing the EPG process.
Embodiment
The invention provides a kind of method that in conditional receiving device, realizes EPG, to satisfy the user realizes the new function of personalized customization at conditional receiving device requirement.
Traditional EPG mainly solves two problems: the collection of the one, EPG data, that is: and from transport stream (Transport Stream, TS) middle tabulation and the play parameter of extracting program provider broadcast items.According to the EPG national standard, the EPG data owner will comprise two parts: based on the basic EPG data of SI (Service Information, information on services) with based on the expansion EPG data of XML; The 2nd, make up an EPG figure layer picture, the EPG data by certain layout, are shown to digital cable customers with form intuitively, make the user can receive, select digital television program easily.
The present invention realizes EPG in conditional receiving device, except needs solve above two problems, also need consider two other problem: the one, realize standardized communication protocol, make EPG graphical interfaces and EPG data to be transferred to main frame (set-top box or the television set of band CI interface) by the CI interface, carried out and demonstration EPG picture by the browser (as: MHEG-5 Browser) of CI main frame; Two are to use the script suitable with the main frame browser (as: MHEG-5 script), realization is by the EPG graphical interfaces of carrier customization---by the CI interface, conditional receiving device is carried out script with the EPG that realizes and is sent a CI main frame, show the EPG interface at video screen behind the main frame browser execution script, simultaneously main frame also can be told conditional receiving device by the CI interface with user's remote controller Action Events, thereby reaches mutual between user's operation and the conditional receiving device.
Among the present invention, the EPG data refer to realize information such as the necessary the rendition list of EPG and broadcast information, can obtain from number of ways: such as, resolve from the transport stream of main frame by the CI interface and to obtain; And for example, conditional receiving device can carry television signal receiver module (this module comprises the tuner that switches to intermediate-freuqncy signal for the TV programme signal that will receive from high-frequency signal; Being used for the intermediate-freuqncy signal of tuner output is reconciled the demodulator that is processed into transport stream) transport stream of output obtains; Even, can also by network from other external transport stream resolvers (such as, the front-end server of Digital Television or website) in obtain information such as the rendition list and broadcast information.
And the EPG application scenarios is different from the EPG data, is a kind of script that may operate at the main frame browser, and it is to realize the personalized graphical interfaces of EGP that the EPG application scenarios mainly acts on.The EPG application scenarios can customize in conditional receiving device according to the demand of operator in addition, is stored in the memory of conditional receiving device in advance; Certainly the EPG application scenarios also can transmit from packing by transport stream when conditional receiving device moves, or other equipment obtain on the network.
The present invention is mainly used in digital television card piece-rate system, and main frame can be set-top box or the digital TV integrated machine that adopts the CI interface; Conditional receiving device adopts memory interface to be connected with smart card, and such as pcmcia interface, SD interface etc., industry standard generally is to adopt pcmcia interface.Wherein, main frame adopts the CI interface to be connected with conditional receiving device, apparatus of digital television receiving-separation between machine and card standard of announcing in the Ministry of Information industry: the standard to the CI interface in " SJ/T 11337-2006 digital television receiver condition receiving interface standard " literary composition has a detailed description, and this paper no longer describes in detail; The CI interface generally adopts pcmcia interface to realize.
Main employing of the present invention " browser-script " pattern is similar to web webpage executive mode.Main frame is used as a browser---quite and the browser of PC, to be integrated in the EPG script of conditional receiving device---be equivalent to webpage, send to main frame by the CI interface, the CI main frame is carried out the EPG script at browser after receiving script, and shows implementation effect at screen.
Be " browser-script " model as Fig. 1.Application scenarios (script, be to use a kind of specific descriptive language, the executable file that the certain form of foundation is write, be called grand or autoexec again) be a kind of scripted code, can carry out on the browser of main frame, application scenarios is stored among the smart card or other memory of conditional receiving device, has write the contour structure of EPG in script, script also can be carried out event action, communicates by letter with conditional receiving device by the CI interface.
Under existing standard, support the conditional receiving device of CI Plus specification (writing a Chinese character in simplified form CI+) standard can utilize the main frame of support CI Plus specification standard to finish the EPG function, as shown in Figure 2, it comprises the collection of EPG content information and carries out the process that EPG shows at main frame.Wherein: the CI+ main frame refers to support set-top box or the all-in-one of CI Plus specification standard; CI+CAM refers to support the conditional receiving device of CI Plus specification standard, i.e. so-called kilocalorie; Browser engine refers to meet the MHEG-5 browser engine of CI Plus specification standard; Display control module is control output execution result after the CI+ main frame is carried out EPG to use step, receives user's operational order (comprising that key command on the control panel of main frame, user are by the remote manipulation instruction of remote controller) simultaneously; CI+ communication protocol refers to CI Plus specification standard, is the expansion on EN50221 and TS101699; EPG information collection module mainly by from the tabulation of standard filtrating program and play parameter such as NIT, the SDT of TS stream, EIT, is supported also can to obtain from the carrier server front end by network under the two-way mode situation; The EPG application manager is to concentrate the explorer that various EPG are used among the CI+CAM, comprises that the rendition list and the play parameter information obtained according to EPG information collection module generate the EPG application scenarios; The EPG information memory cell mainly is code and the EPG content information of storage EPG application scenarios.
Shown in Figure 3 is that CI+CAM realizes the EPG set-up procedure, the application layer order that meets CIPlus specification standard-required that associative list one is involved:
Table one
Realize that the process that EPG uses comprises:
At first, after the CI+CAM initialization is finished, send the session channel request to the CI+ main frame; After the CI+ main frame is received this request, distribute a session channel of conversing with CI+CAM and reply, the session channel that distributes is informed CI+CAM.
Secondly, CI+CAM utilizes the session channel that distributes to initiate EPG application start request (RequestStart) to the CI+ main frame, after the CI+ main frame was received the EPG application request, the CI+ main frame was made the answer that the EPG application start is replied (RequestStartAck) to CI+CAM.
Again, after the EPG application start, the CI+ main frame is asked EPG application scenarios or other guide (picture by file request (FileRequest) utility command to CI+CAM; The EPG data, such as EPG framework (layout) or figure layer picture data, etc.); CI+CAM replys (FileAcknowledge) by file EPG application scenarios or other guide is replied the CI+ main frame.
Then, the browser of CI+ main frame is carried out the EPG application scenarios, and with execution result output, such as exporting video screen to, shows the EPG interface at video screen after making the browser execution EPG application scenarios of main frame.
After showing the EPG interface, user's remote controller Action Events sends EPG information request by the CI interface to CI+CAM by the CI+ main frame, by CI+CAM at this remote controller Action Events, after calling its inner EPG application management resource execution respective handling, the CI+ main frame is sent the EPG information answer, thereby reach user's mutual between the straighforward operation at EPG interface on the CI+ main frame and the CI+CAM.
When CI+CAM or CI+ main frame required to withdraw from EPG and use, wherein a side can be to the opposing party by sending the cancellation request (AppAbortRequest) of using, and the opposing party replys and uses cancellation and reply (AppAbortAck) response and withdraw from request.
To sum up, main employing of the present invention " browser-script " pattern, main frame is used as a browser---quite and the browser of PC, the EPG application scenarios of conditional receiving device will be integrated in, send to main frame by the CI interface, received behind the script by main frame and to carry out the EPG script at browser, and show implementation effect at screen, and conditional receiving device and main frame adopt and meet CI and the EPG information interaction is carried out in the order of extension standards application layer, thereby realize generation and the application of EPG in conditional receiving device.
Claims (6)
1. a method that realizes EPG in conditional receiving device is characterized in that, comprising:
Conditional receiving device obtains the EPG data that comprise the rendition list and play parameter information;
Main frame obtains the EPG application scenarios from conditional receiving device, uses browser to carry out this EPG application scenarios, and utilizes the EPG data to generate EPG;
Conditional receiving device and main frame carry out the EPG information interaction by the CI interface;
Wherein, the EPG application scenarios uses the script suitable with the browser of main frame;
The step of the described EPG of obtaining application scenarios comprises:
The utility command that conditional receiving device is initiated the request of an EPG application start to main frame, the utility command that main frame is replied by the EPG application start is made answer;
Main frame passes through the utility command of file request to conditional receiving device request EPG application scenarios, and the utility command that conditional receiving device is replied by file sends to main frame with the EPG application scenarios.
2. according to the described method that in conditional receiving device, realizes EPG of claim 1, it is characterized in that one of them obtains the EPG data to described conditional receiving device from following approach at least:
Obtain the EPG data by the CI interface from the transport stream parsing of main frame;
Resolve the transport stream of the digital television signal receiver module output that carries from conditional receiving device and obtain the EPG data;
From other transport stream resolvers, obtain the EPG data by network.
3. according to the described method that in conditional receiving device, realizes EPG of claim 1, it is characterized in that, before conditional receiving device is initiated the request of an EPG application start to main frame, also comprise the step of conditional receiving device and main frame consulting session passage.
4. according to the described method that in conditional receiving device, realizes EPG of claim 1, it is characterized in that conditional receiving device and main frame all adopt the communication protocol of CI and extension standards thereof.
5. according to the described method that in conditional receiving device, realizes EPG of claim 1, it is characterized in that the CI interface is pcmcia interface.
6. according to the described method that in conditional receiving device, realizes EPG of claim 1, it is characterized in that, the EPG application scenarios is stored in the memory of conditional receiving device inside or external smart card, and perhaps, the EPG application scenarios is obtained from transport stream or network by conditional receiving device.
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| CN 201010585332 CN102026036B (en) | 2010-12-10 | 2010-12-10 | Conditional access device and method for implementing electronic program guide (EPG) therein |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102307317A (en) * | 2011-08-10 | 2012-01-04 | 深圳国微技术有限公司 | System for implementing data value-added service (VAS) by CAM (conditional access module) card |
| CN103491420B (en) * | 2013-09-18 | 2017-05-10 | 深圳Tcl新技术有限公司 | Bidirectional video-on-demand method and digital television all-in-one machine |
| CN103561326B (en) * | 2013-11-01 | 2017-04-05 | 深圳国微技术有限公司 | A kind of player method based on digital television browser |
| CN103618932B (en) * | 2013-11-21 | 2018-02-16 | 深圳Tcl新技术有限公司 | Show the method and system of operator's advertisement |
| CN105323641B (en) * | 2014-06-10 | 2018-09-25 | 深圳Tcl新技术有限公司 | Bidirectional video-on-demand method and system based on CAM cards |
| CN105744315A (en) * | 2014-12-10 | 2016-07-06 | 深圳Tcl数字技术有限公司 | Method and system for obtaining electronic program menus |
| CN112637639B (en) | 2019-09-24 | 2024-01-19 | 中兴通讯股份有限公司 | Control method, system, equipment and medium of unified play control system |
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| CN1929587A (en) * | 2005-09-09 | 2007-03-14 | 上海乐金广电电子有限公司 | Edition method for electronic program guidebooks |
| CN101132497A (en) * | 2006-08-24 | 2008-02-27 | 佳能株式会社 | Information processing apparatus and control method therefor |
| CN101399809A (en) * | 2007-09-26 | 2009-04-01 | 北京数字太和科技有限责任公司 | Set/card separated graphical interface system based on client/server structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| MXPA05005696A (en) * | 2002-12-03 | 2005-08-16 | Nagracard Sa | Method of managing the display of event specifications with conditional access. |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1929587A (en) * | 2005-09-09 | 2007-03-14 | 上海乐金广电电子有限公司 | Edition method for electronic program guidebooks |
| CN101132497A (en) * | 2006-08-24 | 2008-02-27 | 佳能株式会社 | Information processing apparatus and control method therefor |
| CN101399809A (en) * | 2007-09-26 | 2009-04-01 | 北京数字太和科技有限责任公司 | Set/card separated graphical interface system based on client/server structure |
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