CN103037255B - A kind of CAM cards automatic adaptation method - Google Patents
A kind of CAM cards automatic adaptation method Download PDFInfo
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- CN103037255B CN103037255B CN201110300560.5A CN201110300560A CN103037255B CN 103037255 B CN103037255 B CN 103037255B CN 201110300560 A CN201110300560 A CN 201110300560A CN 103037255 B CN103037255 B CN 103037255B
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- cam
- cam cards
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- automatic adaptation
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Abstract
The present invention provides a kind of CAM cards automatic adaptation method, and the method includes：Judge whether inserted CAM cards are legal；If the CAM engages method, the information in the CAM cards is recognized, and the information in the CAM cards is sent to server end；Corresponding CA databases are searched according to the CAM card informations；Data in the CA databases are written to the CAM cards.The present invention can be by gathering the CA library files of various regions, and the set of CA storehouses is safeguarded, is updated, realize the unified management to various regions broadcasting and TV CA schemes, facilitate television manufacturer to realize the access of DTV, be television set access various regions Broadcasting Cable Network during needed for CA automatic adaptations and automatic updating and management function provide efficient solution route.
Description
Technical field
The present invention relates to CAM (Condition Access Module) cards, particularly a kind of CAM cards automatic adaptation method.
Background technology
Digital TV integrated machine is the direction of domestic digital Polarizations for Target Discrimination in Clutter, and digital TV integrated machine includes main frame and CAM
(Conditional Access Module condition receptions) card composition, is connected by pcmcia interface between the two, and according to
The agreement of DVB-CI (Digital Video Broadcasting (DVB) CommonInterface) relevant criterion defined is entered
Row communication.It is probably to be realized by different hardware and software platforms because main frame and CAM are stuck in actual environment, so for driving
Portable and compatibility have requirement very high.
Digital TV integrated machine is the another product after drawback occurs in Set Top Box, and it just can be straight without using Set Top Box
Receive and show data signal, it is that digital received, decoding combine together with display.All-in-one has had both the solution of Set Top Box
Close function, is the combination by CAM (Conditional Access Module) cards and smart card (smart card), comes real
The function of now decrypting.
CPU and memory of the digital television intelligent card with secured feature, possess temporarily or permanently data storage capacities,
The encryption and decryption treatment of data can be realized.The information such as the mandate payment of user are preserved in digital television intelligent card, as numeral
One opening and closing method identity card of TV user.Intelligent card chip is packaged into portable card, DTV intelligence is just constituted
Can card.
When digital subscriber is after corresponding expense is paid, condition receiving system can send program authorization message to user terminal,
It is authorized, and payment information is stored within a smart card, and after the authorization message on smart card is read, user can just see receiver
To the digital television program that oneself is ordered.
It is similar with cellphone subscriber, watch that the validated user of digital television program needs to obtain identity validation in operator there
Smart card, equivalent to a key for untiing encrypted content is obtained, smart card key is inserted DTV STB by user
In, it is possible to watch digital television program.
Separation between machine and card：Here " machine " refers to Set Top Box or digital television receiver, and " card " refers to the program to encrypting
Stream, is decrypted the device of processing function.The implication of separation between machine and card refers to by the function of conversion digital signal and ciphertext data stream
Function it is separate, realize two kinds of different functions respectively by two equipment being physically isolated.
Treatment of the common Set Top Box to ciphered program stream, is the special processor that Cipher Processing is performed by band, for holding
Be placed on not for this kind of special treatment by row interpretation key, the operation of message and decryption program stream, different set-top box designs
On same position.
Smart card mode：Decryption device places decryption program stream in Set Top Box and smart card, in Set Top Box respectively must be located
Reason device and Conditional Access Module；User key and authorized user message are placed in smart card, this is that a kind of confidentiality requirement is higher
Processor, the decryption oprerations of programme content are realized by both combinations.This is that machine card is not separated, or binding machine and card side
Formula.
Security module mode：Decryption device is completely contained in a pluggable module, realizes decryption program and machine top
The form that box other functions are kept completely separate, binding machine and card and separation between machine and card both modes can be realized to program stream well
Must decrypt, its safe coefficient is suitable.Because be integrated into program decryption device in set top box main chip by binding machine and card mode, its group
Synthesis is originally relatively lower than separation between machine and card mode.
Separation between machine and card refers to just based on DVB-CI (Digital Video Broadcasting
CommonInterface) the digital TV integrated machine of relevant criterion, and dismountable Conditional Access Module CAM compositions, both it
Between by pcmcia interface connect.According to the standard of separation between machine and card, condition receiving system provider is by descrambler and special solution
Compact part part is concentrated on a dismountable CAM card, and CAM cards are inserted on the pcmcia interface of main frame, and main frame connects from wired network
Scrambled transport stream is received, CAM is given by pcmcia interface, specified program is descrambled by CAM.Generation unencryption
Program stream, then sends back to main frame again by pcmcia interface, and program data is processed by main frame, is shown to user, this
The scheme of kind has carried out clear and definite division to the function of main frame and CAM cards, and main frame can either be made to carry out independent exploitation, can pass through again
Main frame meets the diversified market demand from the combination of different CAM cards.
Because binding machine and card mode needs an embedded software module for condition reception in Set Top Box, it is by condition reception
Manufacturer is provided separately with authorization, due to CA systems all disunities that the broadcasting and TV company of various regions uses, causes receiver
If inheriting the software of some CA system, cannot just arrive using the area decryption program of other CA, how allow consumer electronics factory
Business's batch and manufacturer's standard apparatus of digital television receiving on a large scale, allow the user of different operators, by different CAM cards,
The each different smart card of convenient use turns into a problem for needing to solve.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of method of CAM cards automatic adaptation, to solve in the prior art not
Same CAM cards cannot automatically adapt to the defect of different operators.
To achieve the above object, the present invention provides a kind of CAM cards automatic adaptation method, and the method includes：Judgement is inserted
CAM cards it is whether legal；If CAM engaging method, the information in the CAM cards is recognized, and by the information in the CAM cards
Send to server end；Corresponding CA databases are searched according to the CAM card informations；By the number in the CA databases
According to being written to the CAM cards.
Judge inserted CAM cards it is whether legal including：Read and TV services business identity information is provided；Judge described
Whether TV services business identity information is identical with service provider belonging to the CAM cards, is if the same judged to CAM engagings
Method, otherwise for illegal.
Information in the CAM cards at least includes sequence number and encryption method.
Sequence number in information in the CAM cards searches corresponding CA databases.
CAM cards automatic adaptation method of the invention by gathering the CA library files of various regions, and can be carried out to the set of CA storehouses
Safeguard, update, realize the unified management to various regions broadcasting and TV CA schemes, facilitate television manufacturer to realize the access of DTV, be
The required CA automatic adaptations during various regions Broadcasting Cable Network is accessed of television set and automatic updating and management function provide efficient solution
Certainly approach.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, not
Constitute limitation of the invention.In the accompanying drawings：
Fig. 1 is the flow chart of CAM cards automatic adaptation method of the present invention；
Fig. 2 is the connection system structural representation that CAM cards automatic adaptation method of the present invention is related to.
Specific embodiment
For the purpose, technical scheme and advantage for making the embodiment of the present invention become more apparent, with reference to embodiment and attached
Figure, is described in further details to the embodiment of the present invention.Here, schematic description and description of the invention is used to explain this
Invention, but it is not as a limitation of the invention.
Fig. 1 is referred to, Fig. 1 is the flow chart of CAM cards automatic adaptation method of the present invention, as illustrated, CAM cards of the invention
Automatic adaptation method includes：
Step 110：Judge whether inserted CAM cards are legal；
In this step, judge inserted CAM cards it is whether legal including：
Read and TV services business identity information is provided；
Judge whether the TV services business identity information is identical with service provider belonging to the CAM cards, if identical
CAM engaging methods are then judged to, otherwise for illegal.
Step 120：If CAM engaging method, the information in the CAM cards is recognized, and by the information in the CAM cards
Send to server end；
Information in the CAM cards at least includes sequence number and encryption method etc. information.
Step 130：Corresponding CA databases are searched according to the CAM card informations；
In this step, it is that sequence number in information in the CAM cards searches corresponding CA databases.
Step 140：Data in the CA databases are written to the CAM cards.
Again as shown in Fig. 2 being achieved in that for CA can be downloaded for television set：
According to the smart card automatic identification of insertion, which CA system this card belongs to all-in-one, then goes on server to download institute
Run on CA plug-in units to the local internet TV integrated machine for needing.Manufacturer no longer needs to complete the integrated work of CA, including
Transplanting, certification, upgrading of CA etc., these CA functions will be realized by operator.Internet television terminal can be no longer limited to
The limitation of region.
In the middle of practical application, technical scheme has put forward the concept of cloud CA schemes, and cloud CA schemes are mutual
On the basis of networked digital TV integrated machine, by it is integrated can dynamic adaptation CA, with reference to platform is uniformly accessed into, allow television set lead to
Unified Mode integrating is crossed, live telecast is smoothly accessed the various regions broadcasting and TV system of differentiation, realize the business of live telecast
Function unification represents.Be television set access various regions Broadcasting Cable Network during needed for CA automatic adaptations and automatic updating and management function
There is provided efficient solution route.
Cloud CA schemes by gathering the CA library files of various regions broadcasting and TV, and can be safeguarded, updated to the set of CA storehouses, be realized
Unified management to various regions broadcasting and TV CA schemes, facilitates television manufacturer to realize the access of DTV.
Thus, the feature of cloud CA schemes：
1st, highly versatile：Cloud CA schemes provide the CA library files of unified standard, it is to avoid it is pre- that manufacturer for area carries out CA
The work of integrated customization.
2nd, cost advantage：Support that cloud CA schemes chip solution need to only support the Smartcard I/O of standard, therefore need not increase
Plus new hardware cost, simultaneously as stronger software phase lock loop, reduces the human cost that development brings.
3rd, future development trend is met：Support that cloud CA schemes do not need specific peripheral hardware or interface, even if future, television set was adopted
It is Mini CA cards, cloud CA schemes can also accomplish perfect support.
4th, it is easy to maintain：Cloud CA schemes employ unified standard, manufacturer is carried out after-sales service in China
Cost is substantially reduced.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, should be understood that and the foregoing is only specific embodiment of the invention, the guarantor being not intended to limit the present invention
Shield scope, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included in this
Within the protection domain of invention.
Claims (4)
1. a kind of CAM cards automatic adaptation method, it is characterised in that the method includes：
Judge whether inserted CAM cards are legal；
If the CAM engages method, the information in the CAM cards is recognized, and the information in the CAM cards is sent to server
End；
Corresponding CA databases are searched according to the CAM card informations；
Data in the CA databases are written to the CAM cards.
2. CAM cards automatic adaptation method according to claim 1, it is characterised in that judge whether inserted CAM cards close
Method includes：
Read and TV services business identity information is provided；
Judge that whether the TV services business identity information is identical with service provider belonging to the CAM cards, if the same sentences
It is CAM engaging methods, otherwise for illegal.
3. CAM cards automatic adaptation method according to claim 1 and 2, it is characterised in that：
Information in the CAM cards at least includes sequence number and encryption method.
4. CAM cards automatic adaptation method according to claim 3, it is characterised in that：
Sequence number in information in the CAM cards searches corresponding CA databases.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103037255A CN103037255A (en) | 2013-04-10 |
| CN103037255B true CN103037255B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107343212B (en) * | 2017-07-19 | 2020-07-10 | 海信视像科技股份有限公司 | Descrambling method of digital television, digital television and CAM card |
| CN111131869B (en) * | 2019-12-31 | 2021-12-28 | 国微集团(深圳)有限公司 | Method and system for dynamically switching multiple CA systems in real time |
| 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 |
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 |
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| Publication number | Publication date |
|---|---|
| CN103037255A (en) | 2013-04-10 |
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