CN102075808A - Method for realizing multi-conditional access (CA) coexistence in set top box - Google Patents
Method for realizing multi-conditional access (CA) coexistence in set top box Download PDFInfo
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- CN102075808A CN102075808A CN 201110026859 CN201110026859A CN102075808A CN 102075808 A CN102075808 A CN 102075808A CN 201110026859 CN201110026859 CN 201110026859 CN 201110026859 A CN201110026859 A CN 201110026859A CN 102075808 A CN102075808 A CN 102075808A
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Abstract
The invention discloses a method for realizing multi-conditional access (CA) coexistence in a set top box and belongs to the technical field of set top boxes. The method for realizing multi-CA coexistence in the set top box comprises the following steps: a, identifying the state of an intelligent card, and executing a step b if the intelligent card is inserted, or executing a step e if the intelligent card is pulled out; b, performing resetting operation on the intelligent card by using intelligent card parameters corresponding to CAn in turn, judging if an average true range (ATR) value is matched with the CAn if the resetting is successful, and executing a step c if the ATR value is matched with the CAn; if the ATR value is unmatched with the CAn, determining the CAn is unmatched with the intelligent card; c, identifying the intelligent card as CAn, setting communication parameters, realizing communication, and activating a matched CAn; d, if all CAs cannot be reset or matched successfully, determining all CAs are not matched with the intelligent card; e, if the intelligent card is pulled out, suspending a current CAn. The method for realizing the multi-conditional access (CA) coexistence in the set top box can automatically match or activate corresponding CAs according to the currently inserted intelligent card, support the coexistence of multiple CAs, allows a user to change a signal source without changing the set top box and save cost for operators and the user, and is very flexible, compatible and reliable.
Description
Technical field
The present invention relates to the technical field of set-top box, the implementation method of the many CA coexistences of especially a kind of set-top box.
Background technology
In international, domestic DTV extension process, government can introduce a plurality of CA front ends usually for preventing corner on the market, and the domestic consumer selects to be fit to the STB receiving digital signals of oneself according to the demand of oneself.In the traditional approach, a set-top box can only be deciphered the TV signal that some CA encrypt, if the user will select other operators, needs to change set-top box, and a set-top box a plurality of CA that can not coexist simultaneously, this causes bigger economic pressures just for operator and user.Application number is 200820224209.6, the applying date is on November 25th, 2008, name is called the Chinese utility model patent of the mutually integrated CA terminal of a kind of and digital TV set-top box, this patent disclosure a kind of CA terminal, use be that IC-card system and SMD IC chip (built-in CA terminal) are selected wherein a kind of CA terminal by power change-over switch, and select CA deciphering terminal by hardware, its complicated operation, and with high costs, compatibility and reliability are bad, fragile.
Summary of the invention
Goal of the invention of the present invention is: at the problem of above-mentioned existence, provide a kind of CA that can finish automatically to select, can support a plurality of CA coexistences, need not change set-top box when allowing the user change TV signal, for operator and user save cost, and the implementation method of the many CA coexistences of all extraordinary set-top box of flexibility, compatibility and reliability.
The technical solution used in the present invention is as follows:
The implementation method of the many CA coexistences of set-top box of the present invention, it may further comprise the steps:
A, identification intelligent card are in and insert or extract state, if be in the insertion state, then enter step b, if be in the state of extracting, then enter step e;
B, with the smart card parameter of N compatible in the set-top box CA correspondence smart card is carried out reset operation, described N is more than or equal to 2: use CA successively
nCorresponding smart card parameter is carried out reset operation to smart card, and the value of described n is 1,2 ... N:, and judge that whether and CA ATR value that smart card returns if reset operation success is then returned the ATR value to smart card
nCoupling is if coupling then enters step c; Otherwise CA
nDo not match with current smart card;
The sign of the smart card of c, current insertion is set to CA
n, the ATR value of returning according to smart card arranges messaging parameter, and STB is realized the data communication with smart card, activates the CA with current smart card pairing
n
The success or the match is successful if a d N CA all can not reset, then the CA in the STB does not all mate with current smart card;
Be in the state of extracting if e recognizes smart card, then suspend the CA that current data communication is used
n
Owing to adopted said method, so that a plurality of CA coexist as in the STB, and by the automatic identification intelligent card of STB, and automatically select to activate the CA that is fit to smart card, namely automatically select the CA suitable with existing smart card, thereby guarantee the data communication of STB realization CA and smart card.When extracting smart card, with the CA of current data communication use
nSuspend, stop the CA module work of STB, guarantee safety.The implementation method of the many CA of this STB coexistence need not be changed STB when allowing the user change TV signal, and for operator and user save cost, and flexibility, compatibility and reliability are all very good.
The implementation method of the many CA coexistences of STB of the present invention, after realizing data communication among the step c, can realize that program switches by following steps: the network data of f, monitoring equipment top box front end, when program switches, during data variation, with network data transmission to the current data employed CAn that communicates by letter.
Owing to adopted said method, when the user is switched program source, only need to insert corresponding smart card, STB can be according to the smart card that inserts, automatically identification activates the CA that mates with current smart card, need not the user and do the function that any unnecessary operation namely can be finished the CA switching, use convenience very.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1. the implementation method of the many CA of STB of the present invention coexistence, simple to operate, easy to use, flexibility is good, is fit to promote;
2. the implementation method of the many CA coexistences of STB of the present invention can be finished the switching of CA automatically according to the smart card that inserts, and can support a plurality of CA coexistences, need not change STB when allowing the user change TV signal;
3. the implementation method of the many CA of STB of the present invention coexistence can be saved cost for operator and user, and compatible and reliability is all very good.
Description of drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the workflow diagram of the many CA coexistences of set-top box of the present invention;
Fig. 2 is the workflow diagram that user's program switches among the present invention.
Embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The implementation method of the many CA of set-top box of the present invention coexistence wherein can N CA of compatible coexistence in the set-top box, N 〉=2, and CAn is among N the CA of set-top box compatibility, at CA
nIn the value of subscript n be 1,2,3 ... N is and distinguishes the mark that a plurality of CA cards are done.Smart card resets and defers to the ISO7816 standard, because the parameter difference of the smart card that each company adopted, therefore under the situation of deferring to the ISO7816 standard, according to each smart card CA
nA plurality of parameters in the pairing classic indicator parameter are carried out reset operation, to realize resetting of smart card.Described ATR value is the response value that response reset operation smart card provides.
Embodiment 1 is an example with the set-top box of two CA coexistence as depicted in figs. 1 and 2, shows the implementation method of a plurality of CA coexistences.Therefore, the set-top box with N CA coexistence is embodiment below, tells about the implementation method of the many CA coexistences of set-top box of the present invention, may further comprise the steps:
A, identification intelligent card are in and insert or extract state, if be in the insertion state, then enter step b, if be in the state of extracting, then enter step h;
B, use CA
1The smart card corresponding parameters is carried out reset operation to smart card, if reset success, smart card returns the ATR value, judges whether and CA according to the ATR value
1Coupling, as be complementary, then the sign with smart card is made as CA
1, according to CA
1The ATR value of returning is provided with transmission parameter, selects related protocol, communicates;
If ATR value and CA that c resets failure or returns
1Do not mate, then use CA
2The parameter that smart card is corresponding is carried out reset operation to smart card, if reset success, then judges whether and CA according to the ATR value of returning
2Coupling, as be complementary, then identifier is arranged to CA
2, and according to CA
2The ATR value of returning arranges transformation parameter, selects related protocol, communicates;
If d, by that analogy is CA
N-1The smart card failure that resets, the ATR value and the CA that perhaps return
N-1Do not match, then use CA
nThe smart card corresponding parameters is carried out reset operation to smart card, if reset success, and the ATR value and the CA that return
nBe complementary, identifier is arranged to CA
n, and according to CA
nThe ATR value of returning is set to transmission parameter and communicates;
If e is CA
nThe failure that resets, the ATR value and the CA that perhaps return
nDo not match, then identifier is arranged to and is discerned; (if the success or the match is successful if N CA all can not reset, then the interior CA of set-top box does not all match with current smart card)
F, according to the ATR value that smart card returned of the above-mentioned success that resets transmission parameter is set, agreement and smart card communicate by appointment;
The network of g, set-top box application monitoring CAT PMT(top box front end) data when program switches, during data variation, transfer data to the CA of current activation according to the specific requirement of CA
n
Be in the state of extracting if h recognizes smart card, then suspend the CA that current data communication is used
n
The implementation method of the many CA coexistences of STB of the present invention, so that a plurality of CA are stored in the STB, and by the automatic identification intelligent card of STB, and the automatic CA that selects to activate intelligent card corresponding, namely automatically select the CA suitable with existing smart card, thereby guarantee the data communication of STB realization CA and smart card.The implementation method of the many CA of STB of the present invention coexistence need not be changed STB when allowing the user change TV signal, and for operator and user save cost, and flexibility, compatibility and reliability are all very good.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (2)
1. the implementation method of the many CA coexistences of a set-top box, it is characterized in that: it may further comprise the steps:
A, identification intelligent card are in and insert or extract state, if be in the insertion state, then enter step b, if be in the state of extracting, then enter step e;
B, with the smart card parameter of N compatible in the set-top box CA correspondence smart card is carried out reset operation, described N is more than or equal to 2: use CA successively
nCorresponding smart card parameter is carried out reset operation to smart card, and the value of described n is 1,2 ... N:, and judge that whether and CA ATR value that smart card returns if reset operation success is then returned the ATR value to smart card
nCoupling is if coupling then enters step c; Otherwise CA
nDo not match with current smart card;
The sign of the smart card of c, current insertion is set to CA
n, the ATR value of returning according to smart card arranges messaging parameter, and STB is realized the data communication with smart card, activates the CA with current smart card pairing
n
The success or the match is successful if a d N CA all can not reset, then the CA in the STB does not all mate with current smart card;
Be in the state of extracting if e recognizes smart card, then suspend the CA that current data communication is used
n
2. the implementation method of the many CA of STB according to claim 1 coexistence, it is characterized in that: after step c realizes data communication, can realize that program switches: the network data of f, monitoring equipment top box front end by following steps, when program switches, during data variation, with network data transmission to the current data employed CA that communicates by letter
n
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| CN 201110026859 CN102075808A (en) | 2011-01-25 | 2011-01-25 | Method for realizing multi-conditional access (CA) coexistence in set top box |
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| CN 201110026859 CN102075808A (en) | 2011-01-25 | 2011-01-25 | Method for realizing multi-conditional access (CA) coexistence in set top box |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103929675A (en) * | 2014-03-28 | 2014-07-16 | 深圳市九洲电器有限公司 | Communication implementation method of set top box and set top box |
| CN103997678A (en) * | 2014-04-24 | 2014-08-20 | 深圳创维－Rgb电子有限公司 | Multi-CAS seamless switching method and multi-CAS seamless switching system |
| CN104052713A (en) * | 2013-03-11 | 2014-09-17 | 李华 | Novel network trust guarantee service method and device |
| CN104581318A (en) * | 2015-01-22 | 2015-04-29 | 青岛海信宽带多媒体技术有限公司 | Method and terminal capable of achieving dynamic plug response of intelligent card |
| CN105187860A (en) * | 2015-08-18 | 2015-12-23 | 四川长虹电器股份有限公司 | System and method for acquiring digital television program database |
| CN107172464A (en) * | 2017-05-19 | 2017-09-15 | 浙江帝恒实业有限公司 | A kind of automatic turning card machine top box |
| CN108574865A (en) * | 2018-03-30 | 2018-09-25 | 青岛海信电器股份有限公司 | The scramble process method, apparatus and terminal of terminal |
| CN111131869A (en) * | 2019-12-31 | 2020-05-08 | 国微集团(深圳)有限公司 | Method and system for dynamically switching multiple CA systems in real time |
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| CN107682722A (en) * | 2017-05-19 | 2018-02-09 | 浙江帝恒实业有限公司 | A kind of automatic turning card machine top box |
| CN107172464B (en) * | 2017-05-19 | 2020-06-19 | 嘉兴晟源工业设计有限公司 | Automatic card turning-over set-top box |
| CN107682722B (en) * | 2017-05-19 | 2020-06-19 | 周孝银 | Automatic card turning-over set-top box |
| CN108574865A (en) * | 2018-03-30 | 2018-09-25 | 青岛海信电器股份有限公司 | The scramble process method, apparatus and terminal of terminal |
| CN111131869A (en) * | 2019-12-31 | 2020-05-08 | 国微集团(深圳)有限公司 | Method and system for dynamically switching multiple CA systems in real time |
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Application publication date: 20110525 |