CN101562724A - Method for realizing switching between two CA systems on set-top box - Google Patents
Method for realizing switching between two CA systems on set-top box Download PDFInfo
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- CN101562724A CN101562724A CNA2009100156146A CN200910015614A CN101562724A CN 101562724 A CN101562724 A CN 101562724A CN A2009100156146 A CNA2009100156146 A CN A2009100156146A CN 200910015614 A CN200910015614 A CN 200910015614A CN 101562724 A CN101562724 A CN 101562724A
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Abstract
The invention relates to a method for realizing switching between two CA systems on a set-top box, including the followings steps: (1) turning on the set-top box; (2) reading and recording the information of CAS1 and CAS2; (3) loading Conditional Access System CAS1; (4) receiving program data, and judging the scrambling information of programs; (5) if the programs are scrambled, then turning to step (6) , or turning to step (14); (6) if the programs use CAS1 for scrambling, turning to step (7), or turning to step (9); (7) using the CAS1 for scrambling the programs; (8) if the scrambling is successful, turning to step (14); (9) if the programs use CAS2 for scrambling, turning to step (10), or turning to step (13); (10) unloading the CAS1, and loading the CAS2; (11) using the CAS2 for scrambling the programs; (12) if the scrambling is successful, turning to step (14); (13) promoting program scrambling, and turning to step (15); (14) playing the programs, and turning to step (15); (15) waiting for operation by a user.
Description
Technical field
The present invention relates to Digital Television and mobile multimedia field, provide a kind of in the method that realizes on the set-top box switching between two kinds of CA systems.
Background technology
Condition reception (Conditional Access is called for short CA) system is meant and is used for controlling the system that the user receives digital television business that promptly the user can only watch the digital television program (containing audio frequency, video, data etc.) through authorizing.Its basic purpose is that operator carries out authorization control and empowerment management to the user in television system, thereby realizes the paid service of digital television system.In digital television system, operator utilizes condition receiving system to transmit in broadcasting network after the TV programme of broadcasting is encrypted, and only obtains the TV programme that user that operator authorizes could watching encrypted at receiving terminal (user).Operator can utilize condition receiving system that various value-added services such as pay TV programs, video request program, information service, the Internet are provided, condition receiving system is that operator carries out value-added service, increasing income originates provides the necessary technology assurance, thereby it is basic to become in the digital television system one, also is most important component.
The applicant has provided the set-top box platform and the method for down loading thereof of a kind of digital television application software and hardware separation in No. 200810159329.7 patents of invention of first to file, and this set-top box platform is made up of hardware platform and software platform two parts.Hardware platform is meant general digital TV set-top box, and it comprises set-top box processes device chip, random asccess memory SDRAM, program and data storage FLASH, the first-class top-set hardware equipment of high frequency; Software platform comprises operating system module OS, Hardware drive module Driver, system software module System Software, software download upgrading module Boot Loader and application interface module API.In software platform, operating system module OS and Hardware drive module Driver and top-set hardware tight association are responsible for hardware is operated; System software module System Software is the basic software that operates on the set-top box, and can be invoked at the application software execution of developing on this software platform; Software download upgrading module Boot Loader is responsible for the down loading updating of software; Application interface module API provides the application interface of function unanimity to application program.
With regard to present circumstances, a kind of set-top box software is only supported a kind of CAS basically, if operator wants to change CAS, can only carry out software upgrading to set-top box, changes set-top box software.Even a kind of set-top box software can be supported multiple CAS simultaneously, also be that multiple CAS is integrated in the set-top box software simultaneously, it is integrated that this need carry out CA to a plurality of CA system, cause the set-top box software construction cycle long, development cost is high.200810159329.7 propose in number patent of invention, CA can be downloaded in the set-top box as an independent application software and carry out, if but the CA application software need be supported multiple CA simultaneously, it is integrated to need that also a plurality of CA system is carried out CA, has the problem that software development cycle is long, development cost is high equally.In addition, if having a kind of CA to change among the integrated multiple CA, this carries out integrated again to these several CA with regard to needs, and is not only time-consuming but also increase cost.
Summary of the invention
Purpose of the present invention is exactly long in order to solve the software development cycle of supporting multiple CA to exist simultaneously in a kind of set-top box, the software development cost height, problem such as expensive during CA part replacement cost has proposed a kind of in the method that realizes on the set-top box switching between two kinds of CA systems.Realize the digital television application software that the method switched between two kinds of CA systems provides based on the applicant and the set-top box platform of hardware separation in No. 200810159329.7 patents of invention of first to file, it leaves two kinds of different CA systems in the set-top box in as two independent CA application software, set-top box only loads a kind of CAS in system, loads appropriate C AS so as required and can realize on the set-top box switching between two kinds of CA systems.Utilize this method, another kind of CAS can be replaced by with a kind of CAS very easily in operator, and does not need to upgrade the software in the set-top box, simultaneously when wherein a kind of CAS need change, only need independent this CA application software of upgrading to get final product, neither need the integrated again of multiple CA, also do not influence other CA.
To achieve these goals, the present invention adopts following technical scheme:
A kind of in the method that realizes on the set-top box switching between two kinds of CA systems, the digital television application software that it provides in No. 200810159329.7 patents of invention of first to file based on the applicant and the set-top box platform of hardware separation, it leaves two kinds of different CA systems in the set-top box in as two independent application software respectively, and set-top box only loads a kind of appropriate C AS operation as required.Its step is:
(1) the set-top box start that powers on;
(2) information of condition receiving system CAS1 and CAS2 in the reading machine top box, and record;
(3) the condition receiving system CAS1 of load default, and current C AS is set is CAS1;
(4) program receiving data are judged the scramble information of current program;
(5) if current program is a scrambled program, then turn to step (6); If current program is not a scrambled program, then turn to step (14);
(6) if current program uses the CAS1 scrambling, then turn to step (7); If current program is not to use the CAS1 scrambling, then turn to step (9);
(7) use CAS1 that current program is carried out descrambling, turn to step (8);
(8) if the success of program descrambling turns to step (14); If the failure of program descrambling turns to step (9);
(9) if current program uses the CAS2 scrambling, then turn to step (10); If current program does not use the CAS2 scrambling, then turn to step (13);
(10) unloading current C AS is CAS1, loads CAS2, and it is CAS2 that current C AS is set, and turns to step (11);
(11) use CAS2 that current program is carried out descrambling, turn to step (12);
(12) if the success of program descrambling then turns to step (14); If the failure of program descrambling then turns to step (13);
(13) provide the program scrambling information, turn to step (15);
(14) play current program, turn to step (15);
(15) wait for user's operation.
Above-mentioned steps (1)～(15) are that set-top box powers in the start process to being implemented in the operation that switching is carried out between two kinds of CA systems, behind set-top-box opening, in the described step (15),, the user switches the program operation if carrying out, then two kinds of CA systems carry out work according to the methods below in the set-top box
1) user is switched program;
2) program receiving data are judged the scramble information of current program;
3) judge that current program is a scrambled program, if turn to step 4); If not, turn to step 15);
4) judge whether current program uses current C AS scrambling, if turn to step 5); If not, turn to step 7);
5) use current C AS descrambling program, turn to step 6);
6) judge whether the program descrambling is successful, if success turns to step 15); If failure turns to step 7);
7) judge that current C AS is CAS1, if turn to step 8); If not, turn to step 10);
8) judge whether current program uses the CAS2 scrambling, if turn to step 9); If not, turn to step 14);
9) unloading current C AS is CAS1, loads CAS2, and it is CAS2 that current C AS is set, and turns to step 12);
10) judge whether current program uses the CAS1 scrambling, if turn to step 11); If not, turn to step 14);
11) unloading current C AS is CAS2, loads CAS1, and it is CAS1 that current C AS is set, and turns to step 12);
12) use current C AS descrambling program;
13) judge whether the program descrambling is successful, if success then turns to step 15); If failure then turns to step 14);
14) provide the program scrambling prompting, turn to step 16);
15) play current program, turn to step 16);
16) wait for user's operation.
Described two kinds of CA systems are present in the set-top box as two independent application software, and these two kinds of CA application software can be independent upgrades and change.
The invention has the beneficial effects as follows: support freely to switch between two kinds of CA systems, make operator under the condition of not changing set-top box software, to change front end with close CA; Support the method for multiple CA to compare with realize set-top box software by integrated multiple CA, the method for the invention does not need multiple CA is carried out integrated, and the CA software development cycle is short, and development cost are low; Can change any CA in the set-top box very easily, neither need the integrated again of multiple CA, also not influence other CA.In addition, on this method basis, can expand to easily between the two or more CA system of realization on the set-top box and freely switch.
Description of drawings
Fig. 1 is the flow chart of two kinds of CA system works in the set-top-box opening process of the present invention;
Fig. 2 is that user of the present invention is switched the flow chart that program is operated back two kinds of CA system works.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrated embodiment of the present invention and explanation thereof are used to explain the present invention, and improper qualification of the present invention in pairs inadequately.
The digital television application software that provides in based on No. 200810159329.7 patents of invention of applicant in the method that realizes on the set-top box switching between two kinds of CA systems of the present invention and the set-top box platform of hardware separation in first to file, it leaves two kinds of different CA systems in the set-top box in as two independent CA application software, and set-top box loads appropriate C A application software as required and carries out work.
Fig. 1 is the flow chart of two kinds of CA system works in the set-top-box opening process of the present invention, and its step is,
(1) the set-top box start that powers on;
(2) information of condition receiving system CAS1 and CAS2 in the reading machine top box, and record;
(3) the condition receiving system CAS1 of load default, and current C AS is set is CAS1;
(4) program receiving data are judged the scramble information of current program;
(5) if current program is a scrambled program, then turn to step (6); If current program is not a scrambled program, then turn to step (14);
(6) if current program uses the CAS1 scrambling, then turn to step (7); If current program is not to use the CAS1 scrambling, then turn to step (9);
(7) use CAS1 that current program is carried out descrambling, turn to step (8);
(8) if the success of program descrambling turns to step (14); If the failure of program descrambling turns to step (9);
(9) if current program uses the CAS2 scrambling, then turn to step (10); If current program does not use the CAS2 scrambling, then turn to step (13);
(10) unloading current C AS is CAS1, loads CAS2, and it is CAS2 that current C AS is set, and turns to step (11);
(11) use CAS2 that current program is carried out descrambling, turn to step (12);
(12) if the success of program descrambling then turns to step (14); If the failure of program descrambling then turns to step (13);
(13) provide the program scrambling information, turn to step (15);
(14) play current program, turn to step (15);
(15) wait for user's operation.
Fig. 2 is that user of the present invention is switched the flow chart that program is operated back two kinds of CA system works, and its step is,
1) user is switched program;
2) program receiving data are judged the scramble information of current program;
3) judge that current program is a scrambled program, if turn to step 4); If not, turn to step 15);
4) judge whether current program uses current C AS scrambling, if turn to step 5); If not, turn to step 7);
5) use current C AS descrambling program, turn to step 6);
6) judge whether the program descrambling is successful, if success turns to step 15); If failure turns to step 7);
7) judge that current C AS is CAS1, if turn to step 8); If not, turn to step 10);
8) judge whether current program uses the CAS2 scrambling, if turn to step 9); If not, turn to step 14);
9) unloading current C AS is CAS1, loads CAS2, and it is CAS2 that current C AS is set, and turns to step 12);
10) judge whether current program uses the CAS1 scrambling, if turn to step 11); If not, turn to step 14);
11) unloading current C AS is CAS2, loads CAS1, and it is CAS1 that current C AS is set, and turns to step 12);
12) use current C AS descrambling program;
13) judge whether the program descrambling is successful, if success then turns to step 15); If failure then turns to step 14);
14) provide the program scrambling prompting, turn to step 16);
15) play current program, turn to step 16);
16) wait for user's operation.
According to of the present invention in the method that realizes on the set-top box switching between two kinds of CA systems; this area person skilled can be implemented between the multiple CA system easily to be switched, and also belongs to protection range of the present invention according to the method for switching between the multiple CA system of revising in the method for the invention.
Claims (3)
1, a kind ofly it is characterized in that its step is in the method that realizes on the set-top box switching between two kinds of CA systems,
(1) the set-top box start that powers on;
(2) information of condition receiving system CAS1 and CAS2 in the reading machine top box, and record;
(3) the condition receiving system CAS1 of load default, and current C AS is set is CAS1;
(4) program receiving data are judged the scramble information of current program;
(5) if current program is a scrambled program, then turn to step (6); If current program is not a scrambled program, then turn to step (14);
(6) if current program uses the CAS1 scrambling, then turn to step (7); If current program is not to use the CAS1 scrambling, then turn to step (9);
(7) use CAS1 that current program is carried out descrambling, turn to step (8);
(8) if the success of program descrambling turns to step (14); If the failure of program descrambling turns to step (9);
(9) if current program uses the CAS2 scrambling, then turn to step (10); If current program does not use the CAS2 scrambling, then turn to step (13);
(10) unloading current C AS is CAS1, loads CAS2, and it is CAS2 that current C AS is set, and turns to step (11);
(11) use CAS2 that current program is carried out descrambling, turn to step (12);
(12) if the success of program descrambling then turns to step (14); If the failure of program descrambling then turns to step (13);
(13) provide the program scrambling information, turn to step (15);
(14) play current program, turn to step (15);
(15) wait for user's operation.
2, according to claim 1 in the method that realizes on the set-top box switching between two kinds of CA systems, it is characterized in that described step (15) when the user is switched program, is carried out work according to following method between two kinds of CA systems,
1) user is switched program;
2) program receiving data are judged the scramble information of current program;
3) judge that current program is a scrambled program, if turn to step 4); If not, turn to step 15);
4) judge whether current program uses current C AS scrambling, if turn to step 5); If not, turn to step 7);
5) use current C AS descrambling program, turn to step 6);
6) judge whether the program descrambling is successful, if success turns to step 15); If failure turns to step 7);
7) judge that current C AS is CAS1, if turn to step 8); If not, turn to step 10);
8) judge whether current program uses the CAS2 scrambling, if turn to step 9); If not, turn to step 14);
9) unloading current C AS is CAS1, loads CAS2, and it is CAS2 that current C AS is set, and turns to step 12);
10) judge whether current program uses the CAS1 scrambling, if turn to step 11); If not, turn to step 14);
11) unloading current C AS is CAS2, loads CAS1, and it is CAS1 that current C AS is set, and turns to step 12);
12) use current C AS descrambling program;
13) judge whether the program descrambling is successful, if success then turns to step 15); If failure then turns to step 14);
14) provide the program scrambling prompting, turn to step 16);
15) play current program, turn to step 16);
16) wait for user's operation.
3, the method for switching between two kinds of CA systems of realization as claimed in claim 1 or 2, it is characterized in that, described two kinds of CA systems are present in the set-top box as two independent application software, and these two kinds of CA application software can be independent upgrades and change.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100156146A CN101562724B (en) | 2009-05-21 | 2009-05-21 | Method for realizing switching between two CA systems on set-top box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100156146A CN101562724B (en) | 2009-05-21 | 2009-05-21 | Method for realizing switching between two CA systems on set-top box |
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| CN101562724A true CN101562724A (en) | 2009-10-21 |
| CN101562724B CN101562724B (en) | 2011-05-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098575A (en) * | 2010-12-31 | 2011-06-15 | 青岛海信宽带多媒体技术有限公司 | Migration method compatible with multiple conditional access (CA) systems and CA method |
| CN103647986A (en) * | 2013-12-04 | 2014-03-19 | 乐视致新电子科技（天津）有限公司 | Version upgrading method and apparatus |
| CN104883594A (en) * | 2015-06-04 | 2015-09-02 | 深圳市九洲电器有限公司 | Method and system for switching card CA (conditional access) and card-free CA of set-top box |
| CN105282590A (en) * | 2015-09-17 | 2016-01-27 | 国家新闻出版广电总局广播电视规划院 | Set top box |
-
2009
- 2009-05-21 CN CN2009100156146A patent/CN101562724B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098575A (en) * | 2010-12-31 | 2011-06-15 | 青岛海信宽带多媒体技术有限公司 | Migration method compatible with multiple conditional access (CA) systems and CA method |
| CN102098575B (en) * | 2010-12-31 | 2012-12-05 | 青岛海信宽带多媒体技术有限公司 | Migration method compatible with multiple conditional access (CA) systems and CA method |
| CN103647986A (en) * | 2013-12-04 | 2014-03-19 | 乐视致新电子科技（天津）有限公司 | Version upgrading method and apparatus |
| CN103647986B (en) * | 2013-12-04 | 2017-01-25 | 乐视致新电子科技（天津）有限公司 | Version upgrading method and apparatus |
| CN104883594A (en) * | 2015-06-04 | 2015-09-02 | 深圳市九洲电器有限公司 | Method and system for switching card CA (conditional access) and card-free CA of set-top box |
| CN105282590A (en) * | 2015-09-17 | 2016-01-27 | 国家新闻出版广电总局广播电视规划院 | Set top box |
| CN105282590B (en) * | 2015-09-17 | 2018-10-12 | 国家新闻出版广电总局广播电视规划院 | Set-top box |
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| CN101562724B (en) | 2011-05-04 |
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Owner name: SHANDONG TAIXIN ELECTRONIC CO., LTD. Free format text: FORMER NAME: SHANDONG TAIXIN ELECTRONICS CO., LTD. |
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Address after: Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 silver bearing No. 2008 building 1-501-1 Patentee after: Shandong Taixin Electronics Co., Ltd. Address before: Lixia District, Shandong city of Ji'nan Province Cultural Road 250012 No. 13 Haichen building 6 floor Patentee before: Shandong Taixin Electronics Co., Ltd. |