CN103037255A - Automatic adaptive method for conditional access module (CAM) card - Google Patents
Automatic adaptive method for conditional access module (CAM) card Download PDFInfo
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- CN103037255A CN103037255A CN2011103005605A CN201110300560A CN103037255A CN 103037255 A CN103037255 A CN 103037255A CN 2011103005605 A CN2011103005605 A CN 2011103005605A CN 201110300560 A CN201110300560 A CN 201110300560A CN 103037255 A CN103037255 A CN 103037255A
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Abstract
The invention provides an automatic adaptive method for a conditional access module (CAM) card. The method comprises judging whether the inserted CAM card is legal; if the CAM card is legal, identifying information in the CAM card, and sending the information in the CAM card to a server-side; searching a conditional access (CA) database corresponding to the CAM card information according to the CAM card information; and writing data in the CA database into the CAM card. By assembling CA library files in various regions and maintaining and updating the CA library assembly, unified management of broadcasting and television CA schemes in various regions is achieved, access of a digital television is facilitated for television manufacturers, and efficient solutions are provided for CA automatic adaption and automatic updating management functions required for the process of television access of the broadcast and television net in various regions.
Description
Technical field
The present invention relates to CAM (Condition Access Module) card, particularly a kind of CAM card automatic adaptation method.
Background technology
Digital TV integrated machine is the direction of domestic Digital Television development, digital TV integrated machine comprises that main frame and CAM (Conditional Access Module condition reception) card form, connect by pcmcia interface between the two, and carry out communication according to the agreement of DVB-CI (Digital Video Broadcasting (DVB) CommonInterface) relevant criterion defined.Because it may be to be realized by different hardware and software platforms that main frame is stuck in the actual environment with CAM, so for the portable and compatibility that drives very high requirement is arranged.
Digital TV integrated machine is the another product after drawback appears in set-top box, and it need not to use set-top box just can directly accept and show digital signal, and it is that digital received, decoding and demonstration are combined together.All-in-one has had both the decipher function of set-top box, is by the combination of CAM (Conditional Access Module) card and smart card (smart card), realizes the function of deciphering.
Digital television intelligent card possesses temporary transient or permanent data storage capacities with CPU and the memory of secured feature, can realize that the encryption and decryption of data is processed.The mandate of preserving the user in the digital television intelligent card information such as pay the fees becomes an opening and closing method identity card of digital cable customers.Intelligent card chip is packaged into portable card, has just consisted of digital television intelligent card.
After digital subscriber is being paid corresponding expense, condition receiving system can send the program authorization message to user side, its mandate, and payment information is stored in the smart card, receiver is after the authorization message that reads on the smart card, and the user just can see the digital television program oneself ordered.
Similar with the cellphone subscriber, watch that the validated user of digital television program need to obtain in operator the smart card of identity validation there, be equivalent to obtain a key of untiing encrypted content, the user inserts the smart card key in the digital TV set-top box, just can watch digital television program.
Separation between machine and card: here " machine " refers to set-top box or digital television receiver, and " card " refers to and can to the program stream of encrypting, be decrypted the device of processing capacity.The implication of separation between machine and card refers to the function of the function of conversion digital signal and decrypted data stream separate, realizes respectively two kinds of different functions by two equipment that separate physically.
Common set-top box is the special processor of being carried out cryptographic processing by band to the processing of ciphered program stream, is used for carrying out the decipher key, the operation of message and deciphering program stream, and the processing that this class is special of different set-top box design has been placed on the different positions.
The smart card mode: decryption device in set-top box and smart card, is placed the deciphering program stream and is got processor and Conditional Access Module respectively in the set-top box; Place user key and authorized user message in the smart card, this is that a kind of confidentiality requires higher processor, realizes the decryption oprerations of programme content by both combination.This is that the machine card does not separate, perhaps the binding machine and card mode.
The security module mode: decryption device is completely contained in the pluggable module, realize the form that other functions of deciphering program and set-top box are separated fully, this dual mode of binding machine and card and separation between machine and card can be realized must deciphering program stream well, and its safe coefficient is suitable.Because the binding machine and card mode is integrated into the program decryption device in the set-top box master chip, its combination cost is lower than the separation between machine and card mode relatively.
Separation between machine and card just refer to digital TV integrated machine based on DVB-CI (Digital Video Broadcasting CommonInterface) relevant criterion, and dismountable Conditional Access Module CAM forms, and connects by pcmcia interface between the two.Standard according to separation between machine and card, condition receiving system provider concentrates on descrambler and special-purpose deciphering parts on the dismountable CAM card, the CAM card is inserted on the pcmcia interface of main frame, main frame receives from wired network by the transport stream of scrambling, give CAM by pcmcia interface, by CAM the program of appointment is carried out descrambling.Generate the unencrypted program stream, then send back to again main frame by pcmcia interface, by main frame program data is processed, be shown to the user, this scheme has been carried out clear and definite division to the function of main frame and CAM card, main frame is independently developed, can be satisfied the diversified market demand from the combination of different CAM card by main frame again.
Because the binding machine and card mode need to embed the software module of a condition reception in set-top box, it is provided separately with authorization by condition reception manufacturer, because the CA system that the broadcasting and TV company of various places adopts is disunity all, inherit the software of some CA system if caused receiver, just can't arrive the area deciphering program that uses other CA, how to allow consumer electronics manufacturer manufacturer's standard apparatus of digital television receiving in batches and on a large scale, allow the user of different operators, by different CAM cards, the convenient problem of using different separately smart cards to become a needs solution.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of method of CAM card automatic adaptation, can't automatically adapt to the defective of different operators with different CAM card in the solution prior art.
For achieving the above object, the invention provides a kind of CAM card automatic adaptation method, the method comprises: judge whether the CAM card that inserts is legal; If described CAM engaging method is identified the information in the described CAM card, and the information in the described CAM card is sent to server end; Search with it corresponding CA database according to described CAM card information; Data in the described CA database are written to described CAM card.
Judge the CAM card insert legal comprising whether: reading provides the TV services merchant identity information; Judge whether the affiliated service provider of described TV services merchant's identity information and described CAM card is identical, if the same be judged to this CAM engaging method, otherwise be illegal.
Information in the described CAM card comprises sequence number and encryption method at least.
Search corresponding with it CA database according to the sequence number in the information in the described CAM card.
CAM card automatic adaptation method of the present invention can be by the CA library file of set various places, and CA storehouse set safeguarded, upgrades, realization is to the unified management of various places broadcasting and TV CA scheme, make things convenient for television manufacturer to realize the access of Digital Television, for television set required CA automatic adaptation and auto-update management function in the Broadcasting Cable Network process of access various places provides efficient solution route.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, does not consist of limitation of the invention.In the accompanying drawings:
Fig. 1 is the flow chart of CAM card automatic adaptation method of the present invention;
Fig. 2 is the connected system structural representation that CAM card automatic adaptation method of the present invention relates to.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with embodiment and accompanying drawing, the embodiment of the invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
See also Fig. 1, Fig. 1 is the flow chart of CAM card automatic adaptation method of the present invention, and as shown in the figure, CAM card automatic adaptation method of the present invention comprises:
Step 110: judge whether the CAM card that inserts is legal;
In this step, judge the CAM card insert legal comprising whether:
Reading provides the TV services merchant identity information;
Judge whether the affiliated service provider of described TV services merchant's identity information and described CAM card is identical, if the same be judged to this CAM engaging method, otherwise be illegal.
Step 120: if described CAM engaging method is identified the information in the described CAM card, and the information in the described CAM card is sent to server end;
Information in the described CAM card comprises sequence number and encryption method etc. information at least.
Step 130: search with it corresponding CA database according to described CAM card information;
In this step, be to search corresponding with it CA database according to the sequence number in the information in the described CAM card.
Step 140: the data in the described CA database are written to described CAM card.
Again as shown in Figure 2, the CA of implementation can download to(for) television set is:
All-in-one is automatically identified this card according to the smart card that inserts and is belonged to which CA system, then removes to download on the server required CA plug-in unit and moves to the local internet TV integrated machine.Manufacturer no longer needs to finish the integrated work of CA, comprises transplanting, authentication, upgrading of CA etc., and these CA functions will be realized by operator.Internet television terminal can no longer be confined to the restriction of region.
In the middle of practical application, technical scheme of the present invention has put forward the concept of cloud CA scheme, cloud CA scheme is on the basis of the Internet digital TV integrated machine, by the adaptive CA of integrated capable of dynamic, in conjunction with unified access platform, make television set integrated by unified pattern, live telecast is accessed smoothly the various places broadcasting and TV system of differentiation, realize that the business function unification of live telecast represents.For television set required CA automatic adaptation and auto-update management function in the Broadcasting Cable Network process of access various places provides efficient solution route.
Cloud CA scheme can be passed through the CA library file of set various places broadcasting and TV, and the set of CA storehouse is safeguarded, upgraded, and realizes the unified management to various places broadcasting and TV CA scheme, makes things convenient for television manufacturer to realize the access of Digital Television.
Thus, the feature of cloud CA scheme:
1, highly versatile: cloud CA scheme provides the CA library file of unified standard, has avoided manufacturer to carry out the work of the pre-integrated customization of CA for the area.
2, cost advantage: support cloud CA scheme chip solution only need support the Smartcard I/O of standard, thus do not need to increase new hardware cost, simultaneously because stronger software generic has reduced the human cost that development brings.
3, meet future development trend: support the not specific outer if interface of needs of cloud CA scheme, even television set adopts in the future is Mini CA card, cloud CA scheme also can be accomplished perfect the support.
4, be easy to safeguard: cloud CA scheme has adopted unified standard, and the cost that makes manufacturer carry out after-sales service in China reduces greatly.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; the protection range that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a CAM card automatic adaptation method is characterized in that, the method comprises:
Judge whether the CAM card that inserts is legal;
If described CAM engaging method is identified the information in the described CAM card, and the information in the described CAM card is sent to server end;
Search with it corresponding CA database according to described CAM card information;
Data in the described CA database are written to described CAM card.
2. CAM card automatic adaptation method according to claim 1 is characterized in that, judges the CAM card insert legal comprising whether:
Reading provides the TV services merchant identity information;
Judge whether the affiliated service provider of described TV services merchant's identity information and described CAM card is identical, if the same be judged to this CAM engaging method, otherwise be illegal.
3. CAM card automatic adaptation method according to claim 1 and 2 is characterized in that:
Information in the described CAM card comprises sequence number and encryption method at least.
4. CAM card automatic adaptation method according to claim 3 is characterized in that:
Search corresponding with it CA database according to the sequence number in the information in the described CAM card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110300560.5A CN103037255B (en) | 2011-09-30 | 2011-09-30 | A kind of CAM cards automatic adaptation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110300560.5A CN103037255B (en) | 2011-09-30 | 2011-09-30 | A kind of CAM cards automatic adaptation method |
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| Publication Number | Publication Date |
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| CN103037255A true CN103037255A (en) | 2013-04-10 |
| CN103037255B CN103037255B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110300560.5A Expired - Fee Related CN103037255B (en) | 2011-09-30 | 2011-09-30 | A kind of CAM cards automatic adaptation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306975A (en) * | 2015-11-06 | 2016-02-03 | 北京视博数字电视科技有限公司 | Control word safe transmission method and system without binding smart card with set top box |
| CN107343212A (en) * | 2017-07-19 | 2017-11-10 | 青岛海信电器股份有限公司 | A kind of de-scrambling method of DTV, DTV and CAM cards |
| 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 |
| CN114189724A (en) * | 2021-12-06 | 2022-03-15 | 国微集团(深圳)有限公司 | Technology upgrading module of condition receiving card |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004112385A1 (en) * | 2003-06-13 | 2004-12-23 | Television And Wireless Applications Europe Ab | Adapter arrangement, method, system and user terminal for conditional access |
| CN1835552A (en) * | 2005-12-31 | 2006-09-20 | 北京东方广视科技有限责任公司 | Device and method of realizing expendable machine card separation in digital television system |
| CN101042718A (en) * | 2006-03-21 | 2007-09-26 | 北京汉辰科技有限公司 | Network hand-hold multimedia terminals with security authentication and implementing method thereof |
-
2011
- 2011-09-30 CN CN201110300560.5A patent/CN103037255B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004112385A1 (en) * | 2003-06-13 | 2004-12-23 | Television And Wireless Applications Europe Ab | Adapter arrangement, method, system and user terminal for conditional access |
| CN1835552A (en) * | 2005-12-31 | 2006-09-20 | 北京东方广视科技有限责任公司 | Device and method of realizing expendable machine card separation in digital television system |
| CN101042718A (en) * | 2006-03-21 | 2007-09-26 | 北京汉辰科技有限公司 | Network hand-hold multimedia terminals with security authentication and implementing method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306975A (en) * | 2015-11-06 | 2016-02-03 | 北京视博数字电视科技有限公司 | Control word safe transmission method and system without binding smart card with set top box |
| CN105306975B (en) * | 2015-11-06 | 2018-10-23 | 北京视博数字电视科技有限公司 | The method and system of control word safe transmission without binding machine and card |
| CN107343212A (en) * | 2017-07-19 | 2017-11-10 | 青岛海信电器股份有限公司 | A kind of de-scrambling method of DTV, DTV and CAM cards |
| 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 |
| CN114189724A (en) * | 2021-12-06 | 2022-03-15 | 国微集团(深圳)有限公司 | Technology upgrading module of condition receiving card |
| CN114189724B (en) * | 2021-12-06 | 2024-06-04 | 国微集团(深圳)有限公司 | Technology upgrading module of conditional access card |
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| Publication number | Publication date |
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| CN103037255B (en) | 2017-06-30 |
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