CN101489098A - Service unsubscription method, system and terminal thereof for conditional receiving system - Google Patents
Service unsubscription method, system and terminal thereof for conditional receiving system Download PDFInfo
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- CN101489098A CN101489098A CNA2008100561227A CN200810056122A CN101489098A CN 101489098 A CN101489098 A CN 101489098A CN A2008100561227 A CNA2008100561227 A CN A2008100561227A CN 200810056122 A CN200810056122 A CN 200810056122A CN 101489098 A CN101489098 A CN 101489098A
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Abstract
The invention provides a business quit method of a conditional access system, a system and a terminal thereof. When a terminal user quits the business, the method comprises: the terminal receiving a reverse authorization data package transmitted by a front end, wherein the reverse authorization data package comprises an intelligent card serial number of the terminal user, a product number corresponding to the quit business and reverse authorization confirmation information; acquiring the reverse authorization confirmation information; providing the reverse authorization confirmation information or intelligent card for the front end; the front end quitting the business according to the reverse authorization confirmation information. The invention guarantees the terminal user to really quit the business through the reverse authorization confirmation information, thus effectively protects the service provider's vital interests, and guarantees service provider's proper rights.
Description
Technical field
The present invention relates to digital television techniques, particularly a kind of service unsubscription method of digital television conditional access system, system and terminal thereof.
Background technology
As everyone knows, condition receiving system CAS is meant and is used for controlling the system that the user receives broadcast service, realizes the paid service of broadcast system usually by empowerment management.
Fig. 1 is the digital television conditional access system structural representation.As shown in Figure 1, this CA system comprises front end 101 and terminal 102.Wherein, front end 101 comprises Entitlement Control Message Generator (ECMG:Entitlement Control Message Generator) 104, EMM Generator (EMMG:Entitlement Management Message Generator) 106; Terminal 102 comprises the terminal security unit, can be smart card 112.
As shown in Figure 1, 2, the scrambler/SCS103 of front end 101 utilizes control word (CW:ControlWord) that the digital program stream that broadcasts is carried out scrambling;
ECMG104 receives control word CW, utilizes service key that control word CW is encrypted in ECMG104, together transmits with digital program stream in Entitlement Control Message (ECM:Entitlement Control Message);
Service key also is provided for EMMG106 when giving ECMG104, encrypt transmission in Entitlement Management Message (EMM:Entitlement Management Message) through user key.
In terminal 102, the code stream that the multiplexer 107 of reception/filter element 108 receiving front-ends 101 of terminal 102 is sent receives the EMM authorization message of giving oneself according to the smart card numbering from code stream, then the EMM authorization message is delivered in the smart card 112.
Smart card 112 is preserved this authorization message, and utilizes the user key that is embedded among the memory cell 112a that EMM is decrypted at EMM processing unit 112b, decrypts authorization key (service key), delivers to memory cell 112c and stores.
Reception/the filter element 108 of terminal 102 receives the ECM stream corresponding with selected program from code stream, deliver to the ECM processing unit 112a of smart card then, ECM processing unit 112a is decrypted ECM according to the service key that stores among the memory cell 112c, obtain control word CW, then control word CW is sent smart card 112 and carry out descrambling for descrambler 111.
Above-mentioned smart card 112 general sections adopt eight bit CPU monolithic chip, and the relevant criterion of this smart card is mainly the ISO7816 series standard.The data message that writes in above-mentioned smart card comprises, manufacturer's information data (the information of CAS manufacturer, the smart card numbering), operator's data (write down each operator's manufacturer's information, smartcard version number, identification number etc.), subscriber control information data (record be that the user can revise own information by set-top box), AC information data (recording smart card attribute of user, the area code of using as addressing), encrypted message data (recording user is written into the version of PIN code), machine card corresponding data (record be this numbering that is stuck in the machine card correspondence in the use), wallet data (credit line of each wallet reaches to have spent and counts), IPPV data (record be the information of watching the IPPV of each operator record), key information data (user key, service key etc.).Every sheet smart card all has a unique identification number and numbering in the front end data storehouse.
When the user proposed to quit the subscription of business, front end EMMG106 produced anti-authorization data packets, and flowed down by EMMS and to be dealt into terminal.After terminal intelligent card 112 is received anti-authorization packets, can be the deletion of the product authority record in the smart card 112, terminal 102 just can not be deciphered the program control word CW that quits the subscription of like this, can not watch the scrambled program of quitting the subscription of.
But sometimes because the transmission fault of network, when sending out authorization packets anti-, smart card is objective factor such as start not in box or not, perhaps because artificial subjective reason, the terminal use may can not receive anti-authorization packets or deliberately reject the anti-authorization packets of EMM, and the user can also continue to watch these scrambled program like this; Quit the subscription of the anti-authorization packets of program and front end has sent these, just take for the user and quit the subscription of success, and this professional remaining cost is returned to the user.Therefore, can't guarantee service provider's vital interests effectively, can bring enormous economic loss to the service provider.Along with popularizing of Digital Television, it is more and more urgent that the solution of this problem also becomes.
Summary of the invention
The object of the present invention is to provide a kind of service unsubscription method of condition receiving system; guarantee effectively that by this method the terminal use receives the anti-authorization packets of this business really when quitting the subscription of business; really quit the subscription of business; thereby protected service provider's vital interests effectively, ensured service provider's just rights and interests.
The object of the present invention is to provide a kind of condition receiving system, guarantee that by this system the terminal use really quits the subscription of business, thereby protected service provider's vital interests effectively, ensured service provider's just rights and interests.
The object of the present invention is to provide a kind of digital TV terminal, guarantee that by this terminal the user really quits the subscription of business, thereby protected service provider's vital interests effectively, ensured service provider's just rights and interests.
For achieving the above object, the invention provides a kind of service unsubscription method of condition receiving system, when the terminal use quit the subscription of business, this method comprised:
The anti-authorization data packets that the terminal receiving front-end sends, wherein, described anti-authorization data packets comprises the numbering of this terminal use's smart card, professional corresponding production number and the anti-license confirmation information quit the subscription of;
Obtain described anti-license confirmation information;
Described anti-license confirmation information or smart card are offered described front end;
Described front end is quit the subscription of described business according to described anti-license confirmation information.
For achieving the above object, the invention provides a kind of condition receiving system, this system comprises:
Terminal is used to receive anti-authorization data packets, extracts anti-license confirmation information, shows or sends described anti-license confirmation information; Wherein, described anti-authorization data packets comprises the numbering of this terminal use's smart card, professional corresponding production number and the anti-license confirmation information quit the subscription of;
Front end generates anti-authorization data packets according to terminal use's the service request of quitting the subscription of, and sends extremely described terminal of this anti-authorization data packets; And obtain described anti-license confirmation information by terminal or terminal use, judge whether the described anti-authorization message of obtaining is consistent with the anti-license confirmation information that prestores; If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute.
The present invention also provides a kind of digital TV terminal, and this terminal comprises smart card, and described terminal also comprises:
Receiving element is used for the described anti-authorization data packets of receiving front-end transmission and filters out the anti-authorization data packets corresponding with smart card; Wherein, described anti-authorization data packets comprises the numbering of this terminal use's smart card, professional corresponding production number and the anti-license confirmation information quit the subscription of;
First processing unit is used to receive the anti-authorization data packets that described receiving element transmits, and extracts described anti-license confirmation information;
Display unit is connected with described first processing unit, is used to receive the anti-license confirmation information that described first processing unit transmits, and shows described anti-license confirmation information.
The beneficial effect of embodiment of the present invention is, guarantees that by utilizing anti-license confirmation information the terminal use really quits the subscription of business, thereby protects service provider's vital interests effectively, has ensured service provider's just rights and interests.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is that condition receiving system constitutes schematic diagram in the correlation technique;
Fig. 2 is a condition receiving system scrambling descrambling schematic diagram shown in Figure 1;
Fig. 3 is that front end constitutes schematic diagram in the condition receiving system of embodiment of the present invention;
Fig. 4 is the formation schematic diagram of Service Processing Unit among Fig. 3;
Fig. 5 is that terminal constitutes schematic diagram in the condition receiving system of embodiment of the present invention;
Fig. 6 embodiment of the present invention service unsubscription method flow chart.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in further details below in conjunction with execution mode and accompanying drawing.At this, exemplary embodiment of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
Execution mode one
The invention provides a kind of service unsubscription method of condition receiving system, when the terminal use quits the subscription of business, this method comprises: the anti-authorization data packets that the terminal receiving front-end sends, wherein, this anti-authorization data packets comprises the numbering of this terminal use's smart card, professional corresponding production number and the anti-license confirmation information quit the subscription of; Obtain anti-license confirmation information; Should anti-license confirmation information or smart card offer front end; This front end is quit the subscription of business according to this anti-license confirmation information.
From the above; by anti-license confirmation information being offered service provider's front end; make front end utilize anti-license confirmation information to guarantee that the terminal use really quits the subscription of business, thereby protect service provider's vital interests effectively, ensured service provider's just rights and interests.
In the present embodiment, can comprise the product that one or more are quit the subscription of in advance in each anti-authorization data packets, and for being included in a product in the anti-authorization data packets, front end and terminal there is unique anti-license confirmation information.
In the present embodiment, confirmation can be confirmation code, and this anti-license confirmation sign indicating number can be the numeral of one group of 4 byte, and for example, the sequence by numeral is formed as 1122334455, but is not limited thereto, and also can adopt other mode to replace.
In the present embodiment, after the anti-authorization data packets that the terminal receiving front-end sends, deletion and the professional corresponding authority record of being quit the subscription of.
Terminal is obtained anti-license confirmation information after the anti-authorization data packets that receiving front-end sends, can be in the following way: terminal is extracted the anti-license confirmation information in this anti-authorization data packets; Should anti-license confirmation information store or show.
In an embodiment of the invention, anti-license confirmation information is offered front end can be in the following way: the terminal use obtains anti-license confirmation information from terminal, wherein can read anti-license confirmation information or read anti-license confirmation information by display unit from memory cell, inform the service provider in the mode of informing orally, so that front end obtains this anti-license confirmation information.
In addition, when terminal can be carried out two-way communication, anti-license confirmation information is offered front end also can be in the following way: the anti-license confirmation information that terminal directly will be obtained was sent to front end by network; Front end receives this anti-license confirmation information.
In yet another embodiment of the present invention, the terminal use can offer front end with smart card, so that front end obtains anti-license confirmation information, wherein, if store anti-license confirmation information in this smart card, can be in the following way when then front end is quit the subscription of business according to anti-license confirmation information: front end reads the anti-license confirmation information that stores in the smart card; Judge whether this anti-license confirmation information is consistent with the anti-license confirmation information that prestores; If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute, and returns to the remaining expense of terminal use.
If when not storing anti-license confirmation information in the smart card, can be in the following way when then front end is quit the subscription of business according to anti-license confirmation information: front end utilizes smart card to obtain anti-license confirmation information, wherein can be in the following way, smart card is placed in the terminal equipment of front end, front end sends anti-authorization data packets to smart card, the terminal equipment of this front end receives anti-authorization data packets, extraction also shows anti-license confirmation information, like this, front end can be known anti-license confirmation information according to the anti-license confirmation information that shows.
After front end obtained anti-license confirmation information, front end was quit the subscription of the business that the user will quit the subscription of according to anti-license confirmation information, can adopt following steps: front end judges whether the anti-license confirmation information of obtaining is consistent with the anti-license confirmation information that prestores; If the result who judges is consistent, then anti-license confirmation success, the front end deletion is quit the subscription of professional corresponding anti-authority record with institute, and returns to the remaining expense of terminal use.
In the present embodiment, before the step of the anti-authorization data packets that the terminal receiving front-end sends, comprising: front end sends anti-authorization data packets to terminal.
Send anti-authorization data packets to the terminal at front end, comprising: front end changes the professional corresponding authority record of quit the subscription of into anti-licensing status; Judge whether the business of being quit the subscription of is the product that needs anti-license confirmation information; If the result who judges then produces anti-license confirmation information for being, and this anti-license confirmation information of storage.
In addition, in the present embodiment, front end needs to dispose in advance the product that needs anti-license confirmation information in programme.
Embodiment below in conjunction with 6 pairs of service unsubscription methods of the present invention of accompanying drawing is elaborated.
As shown in Figure 6, step 601, front end disposes the product that needs anti-license confirmation sign indicating number in programme, the service provider need dispose each in the programme of front end need the product of the anti-license confirmation sign indicating number of user feedback, can in programme file (XML), dispose the configuration information whether program needs anti-license confirmation sign indicating number, for example
<ProductDescs>
＜ProductDesc ID=" 1 " DetitleAck=" 1 " Name=" movie channel "/〉
＜ProductDesc ID=" 2 " DetitleAck=" 1 " Name=" central channel for finance and economics "/〉
＜ProductDesc ID=" 3 " DetitleAck=" 0 " Name=" children's Cartoon Network "/〉
</ProductDescs>
Wherein, above-mentioned XML file is the tabulation of 3 programs in the programme file, and wherein program 1 and program 2 need anti-license confirmation sign indicating number, and 3 of programs do not need anti-license confirmation sign indicating number.Parameter declaration is as follows:
ID: program code ID, unique identification one programs; DetitleAck: whether need anti-license confirmation sign indicating number, " 1 " does not need confirmation code for needs confirmation code, " 0 "; Name: programm name.
Wherein, front end sends the EMM packet to terminal, comprises the service key and the effective information such as deciphering time of production number, the encryption of numbering, the purchase of smart card in this EMM packet.
Terminal receives this EMM packet, filters out one's own EMM packet according to the numbering of smart card, utilizes the service key in the user key deciphering EMM packet of the smart card that prestores, and then this service key is stored in the memory cell of smart card.
Like this, scrambling control word after terminal receives the encryption of transmitting in the ECM packet of front end transmission, utilize the scrambling control word in the service key deciphering ECM packet after the deciphering, and the scrambling control word after will decipher is sent smart card and to the descrambling unit digital program is carried out descrambling outward.Behind this digital decrypted descrambling, the user just can watch the product of order by the display unit of terminal.
Step 605 judges whether the business of being quit the subscription of is the product that needs anti-license confirmation sign indicating number;
In step 605, if judged result does not need anti-license confirmation sign indicating number by the business of being quit the subscription of, then execution in step 614, and anti-authorization data packet generation does not have the anti-authorization data packets of anti-license confirmation sign indicating number, after terminal receives this packet, delete the record of the authorizing product in this end-user's mind card.
The anti-authorization data packets that step 608, terminal receiving front-end send, in the deletion smart card with the professional corresponding authorizing product record of quit the subscription of; Wherein, terminal filters out the anti-authorization data packets that belongs to this terminal according to the numbering of smart card; The product key information of professional production number correspondence is quit the subscription of in deletion in the key information data that store in smart card.
Like this, if there is not corresponding product key information in terminal use's the smart card, after then terminal receives the ECM bag, can not correctly decipher scrambling control word CW, the descrambling unit is the descrambling program stream correctly, thereby the user can not watch the business of quitting the subscription of.
Anti-license confirmation sign indicating number or smart card that step 609, terminal will be received offer the service provider, make service provider's front end obtain anti-license confirmation sign indicating number.
Step 611,612, instead authorizes successfully after, front end is deleted the anti-authority record of storage, and stops to send anti-authorization data packets.After confirming, the terminal use just can obtain the expense of moving back of the product of quitting the subscription of.
In step 609, anti-license confirmation sign indicating number or smart card that terminal will be received offer the service provider, make service provider's front end obtain anti-license confirmation sign indicating number, can be according to one-way broadcasting network and bidirectional broadcast net in different ways in concrete enforcement.
Under the situation of one-way broadcasting network, after terminal is received anti-authorization data packets, the user can check anti-license confirmation sign indicating number by the display unit of terminal, this terminal use can be by the mode of informing orally with described anti-license confirmation information notification service provider, so that service provider's front end obtains anti-license confirmation sign indicating number.For example, can the license confirmation sign indicating number be fed back to the service provider by the mode of making a phone call.
Perhaps, the terminal use can deliver to smart card service provider's service provider place, carries out anti-license confirmation by front end.If store anti-license confirmation sign indicating number in this smart card, front end reads the anti-license confirmation information that stores in the smart card by terminal equipment; Judge whether this anti-license confirmation sign indicating number is consistent with the anti-license confirmation sign indicating number that prestores; If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute, and returns to the remaining expense of terminal use.
If when not storing anti-license confirmation information in the smart card, then smart card is placed in the terminal equipment of front end, front end sends anti-authorization data packets to smart card, the terminal equipment of this front end receives anti-authorization data packets, extraction also shows anti-license confirmation information, like this, front end can be known anti-license confirmation information according to the anti-license confirmation information that shows.
Under the situation of bidirectional broadcast net, bidirectional terminal directly offers anti-license confirmation sign indicating number by network service provider's front end.
By above-mentioned execution mode as can be known, service provider's front end can guarantee that the terminal use really quits the subscription of business, thereby protect service provider's vital interests effectively by utilizing anti-license confirmation information, ensure service provider's just rights and interests.
For example, the business of quitting the subscription of as the user is product 1 and product 2, the service provider operates this front end, selection user smart card numbering, anti-authorizing product 1 and product 2, change the authority record of this product 1 and product 2 into anti-licensing status, in database, produce the anti-authorization data packets of EMM, and the anti-authorization data packets of this EMM is sent to terminal numbering that should smart card.
Wherein, for example, this anti-license confirmation sign indicating number is 1122334455, but is not limited thereto, and this EMM is anti-, and the authorization data packet format is as shown in table 1:
Table 1
| Grammer | Note |
| EMMDetitleData(){ | |
| CardSN | The smart card numbering |
| OperatorID | Operator's numbering |
| For(intI＝0；I<N；I++){ | N is the number of anti-authorizing product: be 2 here |
| Product ID | Anti-production number of authorizing: be product 1 and 2 here |
| } | |
| CheckNumber | Anti-license confirmation sign indicating number: 1122334455 |
| } |
The anti-authorization data packets that the terminal receiving front-end sends, the authority record of the product corresponding that stores in the deletion smart card with quit the subscription of business, the anti-license confirmation sign indicating number that terminal will be received feeds back to the service provider, service provider's front end obtains anti-license confirmation sign indicating number and carries out anti-license confirmation, after the anti-license confirmation success, the anti-authority record of the front end deletion product of quitting the subscription of, and stop to send anti-authorization data packets.After confirming, the terminal use just can obtain the expense of moving back of the product of quitting the subscription of.Like this, terminal can not be deciphered the scrambling control word CW of the product of being quit the subscription of, and can not continue to watch the business of quitting the subscription of.
Execution mode two
The present invention also provides a kind of condition receiving system, when the user quits the subscription of business, can adopt the mode of quitting the subscription of of execution mode one.Wherein, this system comprises:
Terminal, this terminal is used to receive anti-authorization data packets, extracts anti-license confirmation information, shows or sends anti-license confirmation information; Wherein, this anti-authorization data packets comprises the numbering of this terminal use's smart card, professional corresponding production number and the anti-license confirmation information quit the subscription of;
Front end, this front end generates anti-authorization data packets according to terminal use's the service request of quitting the subscription of, and sends this anti-authorization data packets to terminal; And obtain anti-license confirmation information by terminal or terminal use, judge whether the anti-authorization message of obtaining is consistent with the anti-license confirmation information that prestores; If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute.
From the above; terminal is by offering anti-license confirmation information service provider's front end; make front end utilize anti-license confirmation information to guarantee that the terminal use really quits the subscription of business, thereby protect service provider's vital interests effectively, ensured service provider's just rights and interests.
Fig. 3 is the structural representation of terminal in the embodiment of the present invention.As shown in Figure 3, this terminal comprises: receiving element 501 is used for the anti-authorization data packets of receiving front-end transmission and filters out the anti-authorization data packets corresponding with this terminal use's smart card;
In the present embodiment, this terminal also can comprise information transmitting unit 505, is connected with first processing unit 502, is used for the anti-license confirmation information that this first processing unit 502 extracts is sent to front end by network, so that front end obtains anti-license confirmation information.
In the present embodiment, terminal also comprises first memory cell 503, and this first memory cell 503 is used to store the anti-license confirmation information that first processing unit 502 extracts.Like this, the terminal use also can check the anti-license confirmation information of storage by terminal push.
As shown in Figure 3, this terminal also comprises smart card 306, and this smart card 306 comprises the second processing unit 306a and the second memory cell 306b; Wherein,
The second processing unit 306a comprises record deletion unit (not shown) at least, this record deletion unit is used to receive the anti-authorization data packets that this receiving element 501 transmits, and according to production number deletion of carrying in the anti-authorization data packets and the professional corresponding authority record of being quit the subscription of; The second memory cell 306b is connected with the second processing unit 306a, is used to store the authority record of the ordered product of terminal use.
In addition, this second processing unit 306a also comprises the extraction unit (not shown), and this extraction unit can extract anti-license confirmation information, and is sent to the second memory cell 306b, and like this, second memory cell also is used to store the anti-license confirmation information of obtaining.
In addition, terminal also comprises EPG processing unit 307, descrambling unit 306, and its effect is similar with correlation technique, repeats no more herein.And smart card 306 also can comprise ECM processing unit 306a, and its effect is similar with correlation technique, repeats no more herein.And the second processing unit 306a of smart card 306 can be the EMM processing unit, and this EMM processing unit 306a is except finishing above-mentioned work, also can resolve the EMM packet that receives according to user key, obtain service key, make ECM processing unit 306c according to this service key decryption control words.
Fig. 4 is an embodiment of the present invention front-end architecture schematic diagram.As shown in Figure 4, front end comprises at least:
Subscription management unit 401, this subscription management unit 401 is used for receiving terminal user's the service request of quitting the subscription of, and obtains anti-license confirmation information and the transmission returned by terminal or terminal use; Wherein, quit the subscription of service request and comprise the professional production number and the numbering of smart card quit the subscription of;
Service Processing Unit 402, this Service Processing Unit 402 is connected with subscription management unit 401.
As shown in Figure 5, this Service Processing Unit 402 comprises packet generation unit 503 at least, quits the subscription of Service Processing Unit 504 and the 3rd memory cell 505; Wherein,
Quit the subscription of Service Processing Unit 504, be used to receive the anti-license confirmation information that subscription management unit 401 transmits, judge whether the anti-license confirmation information of obtaining is consistent with the anti-license confirmation information that prestores,, then delete the anti-authority record that stores if judged result is consistent;
The 3rd memory cell 505 and is quit the subscription of Service Processing Unit 504 and is connected, and is used to store anti-authority record.
In addition, as shown in Figure 5, Service Processing Unit 402 also comprises information generating unit 502, this information generating unit 502 is connected with packet generation unit 503 with subscription management unit 401, be used for generating anti-license confirmation information according to quitting the subscription of service request, and should anti-license confirmation information be sent to the packet generation unit, the packet generation unit produces anti-authorization data packets like this, wherein the numbering of portability end-user's mind card, professional production number and the anti-license confirmation information quit the subscription of.
In Fig. 5, Service Processing Unit 402 also can comprise judging unit 501, be connected with information generating unit 502 with subscription management unit 401, be used for judging the whether anti-license confirmation information of confirmation request of the business quit the subscription of according to the professional production number of quit the subscription of, if judged result is for being then to send this and quit the subscription of service request to information generating unit 502.
In Fig. 5, Service Processing Unit 402 also comprises information process unit 506, this information process unit 506 is connected with the 3rd memory cell 505 with subscription management unit 401, be used for receiving and quit the subscription of service request, and change the authority record of this production number corresponding service of storing in the 3rd memory cell 505 into anti-authority record according to the numbering of user terminal smart card and production number.
In the present embodiment, front end also can comprise EPG unit 403, and this EPG unit is used for the product in the anti-license confirmation information of programme configuration needs.
In the present embodiment, Service Processing Unit 402 can adopt EMMG, and like this, anti-authorization data packets is the EMM bag.In addition, this Service Processing Unit 402 also can comprise service order unit (not shown), and is similar with existing correlation technique, repeats no more herein.
Below the workflow of this system is described:
Front end dispose the product of the anti-license confirmation information of needs by EPG unit 403 in programme, concrete configuration repeats no more as described in the enforcement mode one herein.
The terminal use is by front end subscription management unit 401 order business, like this, the service order unit of front end EMMG402 sends the EMM packet to terminal, comprises the service key and the effective information such as deciphering time of production number, the encryption of numbering, the purchase of smart card in this EMM packet; Terminal receives this EMM packet, filters out one's own EMM packet according to the numbering of smart card, utilizes the service key in the user key deciphering EMM packet of the smart card that prestores, and then this service key is stored in the memory cell of smart card.Like this, scrambling control word after terminal receives the encryption of transmitting in the ECM packet of front end transmission, utilize the scrambling control word in the service key deciphering ECM packet after the deciphering, and the scrambling control word after will decipher is sent smart card and to the descrambling unit digital program is carried out descrambling outward.Behind this digital decrypted descrambling, the user just can watch the product of order by the display unit of terminal.
When the terminal use quits the subscription of business to the business hall, subscription management unit 401 announcement information processing units change the authority record of product that this terminal use quits the subscription of into anti-licensing status, become anti-authority record; And whether the business that judgment unit judges is quit the subscription of is the product that needs anti-license confirmation sign indicating number; If the result who judges is for being, unique anti-license confirmation sign indicating number of information generating unit 502 generations then; And should be sent to packet generation unit 503 by anti-license confirmation sign indicating number; Packet generation unit 503 generates anti-authorization data packets, and should anti-authorization data packets be sent to terminal.
After the anti-authorization data packets that the terminal receiving front-end sends, filter out the anti-authorization data packets that belongs to this terminal; The product key information of professional production number correspondence is quit the subscription of in deletion in the key information data that store in smart card.Like this, if there is not corresponding product key information in terminal use's the smart card, after then terminal receives the ECM bag, can not correctly decipher scrambling control word CW, the descrambling unit is the descrambling program stream correctly, thereby the user can not watch the business of quitting the subscription of.
Anti-license confirmation sign indicating number or smart card that terminal will be received offer the service provider, make front end obtain anti-license confirmation sign indicating number, and detailed process repeats no more as described in the enforcement mode one herein.
Front end carries out anti-license confirmation after obtaining anti-license confirmation sign indicating number, judges whether anti-license confirmation sign indicating number is consistent with the anti-license confirmation sign indicating number that prestores; If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute, anti-license confirmation success, thus quit the subscription of described anti-authorizing product corresponding service, return the remaining expense of terminal use.Therefore, the service provider guarantees that by confirming anti-license confirmation sign indicating number the terminal use really quits the subscription of business, avoids service provider's loss.
From the above, the service provider guarantees that by confirming anti-license confirmation sign indicating number the terminal use really quits the subscription of business, avoids service provider's loss.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (33)
1. the service unsubscription method of a condition receiving system is characterized in that, when the terminal use quit the subscription of business, this method comprised:
The anti-authorization data packets that the terminal receiving front-end sends, wherein, described anti-authorization data packets comprises the numbering of this terminal use's smart card, professional corresponding production number and the anti-license confirmation information quit the subscription of;
Obtain described anti-license confirmation information;
Described anti-license confirmation information or smart card are offered described front end;
Described front end is quit the subscription of described business according to described anti-license confirmation information.
2. method according to claim 1 is characterized in that, after the anti-authorization data packets that described terminal receiving front-end sends, also comprises: deletion and the professional corresponding authority record of being quit the subscription of.
3. method according to claim 1 is characterized in that, describedly obtains anti-license confirmation information, comprising:
Described terminal is extracted the anti-license confirmation information in the described anti-authorization data packets;
Should anti-license confirmation information store or show.
4. method according to claim 1 is characterized in that, describedly anti-license confirmation information is offered front end comprises:
The terminal use obtains described anti-license confirmation information from described terminal;
Inform the service provider in the mode of informing orally, so that described front end obtains described anti-license confirmation information.
5. method according to claim 1 is characterized in that, described anti-license confirmation information is offered front end, comprising:
The described anti-license confirmation information that described terminal will be obtained is sent to described front end by network;
Described front end receives described anti-license confirmation information.
6. according to claim 4 or 5 described methods, it is characterized in that described front end is quit the subscription of described business according to anti-license confirmation information, comprising:
Judge whether described anti-license confirmation information is consistent with the anti-license confirmation information that prestores;
If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute.
7. method according to claim 3 is characterized in that, described smart card is offered front end, and specifically refer to: the smart card that the terminal use will store described anti-license confirmation information offers described front end.
8. method according to claim 7 is characterized in that, described front end is quit the subscription of described business according to anti-license confirmation information, comprising:
Described front end reads the described anti-license confirmation information that stores in the described smart card;
Judge whether described anti-license confirmation information is consistent with the anti-license confirmation information that prestores;
If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute.
9. method according to claim 1 is characterized in that, described smart card is offered front end, and specifically refer to: the terminal use offers described front end with smart card;
Described front end is quit the subscription of described business according to anti-license confirmation information, comprising:
Described front end utilizes described smart card to obtain anti-license confirmation information;
Judge whether described anti-license confirmation information is consistent with the anti-license confirmation information that prestores;
If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute.
10. method according to claim 9 is characterized in that, described front end utilizes described smart card to obtain anti-license confirmation information, comprising:
Described smart card is placed in the terminal equipment of front end;
Described front end sends described anti-authorization data packets to described smart card;
The terminal equipment of described front end receives described anti-authorization data packets, extracts and shows described anti-license confirmation information;
Described front end is known described anti-license confirmation information according to the described anti-license confirmation information that shows.
11. method according to claim 1 is characterized in that, before the step of the anti-authorization data packets that the terminal receiving front-end sends, comprising: described front end sends anti-authorization data packets to described terminal.
12. method according to claim 11 is characterized in that, sends anti-authorization data packets to the terminal at described front end, comprising:
Described front end changes the professional corresponding authority record of quit the subscription of into anti-licensing status;
Judge whether the business of being quit the subscription of is the product that needs anti-license confirmation information;
If the result who judges is for being then to produce described anti-license confirmation information.
13. method according to claim 12 is characterized in that, also comprises: described front end stores described anti-license confirmation information.
14. method according to claim 12 is characterized in that, before the user quits the subscription of business, comprising: described terminal use orders described business.
15. method according to claim 14 is characterized in that, before described terminal use orders described business, comprising: described front end disposes the product of the anti-license confirmation information of needs in programme.
16. method according to claim 1 is characterized in that, described anti-license confirmation information is confirmation code, and this confirmation code is unique.
17. a condition receiving system is characterized in that, described system comprises:
Terminal, described terminal is used to receive anti-authorization data packets, extracts anti-license confirmation information, shows or sends described anti-license confirmation information; Wherein, described anti-authorization data packets comprises the numbering of this terminal use's smart card, professional corresponding production number and the anti-license confirmation information quit the subscription of;
Front end, described front end generates anti-authorization data packets according to terminal use's the service request of quitting the subscription of, and sends this anti-authorization data packets to described terminal; And obtain described anti-license confirmation information by terminal or terminal use, judge whether the described anti-authorization message of obtaining is consistent with the anti-license confirmation information that prestores; If the result who judges is consistent, then deletion is quit the subscription of professional corresponding anti-authority record with institute.
18. system according to claim 17 is characterized in that, described terminal comprises:
Receiving element is used to receive the described anti-authorization data packets of described front end transmission and filter out the anti-authorization data packets corresponding with described smart card;
First processing unit is used to receive the anti-authorization data packets that described receiving element transmits, and extracts described anti-license confirmation information;
Display unit is connected with described first processing unit, is used to receive the anti-license confirmation information that described first processing unit transmits, and shows described anti-license confirmation information.
19. system according to claim 17 is characterized in that, described terminal comprises:
Receiving element is used to receive the described anti-authorization data packets of described front end transmission and filter out the anti-authorization data packets corresponding with described smart card;
First processing unit is connected with described receiving element, is used to receive the anti-authorization data packets that described receiving element transmits, and extracts described anti-license confirmation information;
Information transmitting unit is connected with described first processing unit, is used for described anti-license confirmation information is sent to described front end.
20. according to claim 18 or 19 described systems, it is characterized in that described terminal also comprises first memory cell, described first memory cell is used to store described anti-license confirmation information.
21. system according to claim 17 is characterized in that, described terminal also comprises smart card, and this smart card comprises second processing unit and second memory cell; Wherein,
Described second processing unit comprises the record deletion unit at least, and this record deletion unit is used to receive the described anti-authorization data packets that described receiving element transmits, and according to described production number deletion and the professional corresponding authority record of being quit the subscription of;
Second memory cell is connected with described second processing unit, is used to store described authority record.
22. system according to claim 21 is characterized in that, described second processing unit also comprises extraction unit, and this extraction unit is used to extract described anti-license confirmation information, and is sent to described second memory cell;
Described second memory cell also is used to store described anti-license confirmation information.
23. system according to claim 17 is characterized in that, described front end comprises:
Subscription management unit, described subscription management unit are used for receiving terminal user's the service request of quitting the subscription of, and obtain anti-license confirmation information and the transmission returned by terminal or terminal use; The described service request of quitting the subscription of comprises the professional production number and the numbering of smart card quit the subscription of;
Service Processing Unit, described Service Processing Unit is connected with described subscription management unit, comprises the packet generation unit at least, quits the subscription of Service Processing Unit and the 3rd memory cell; Wherein,
Described packet generation unit is used for generating anti-authorization data packets according to the described service request of quitting the subscription of, and should anti-authorization data packets be sent to described terminal;
The described Service Processing Unit of quitting the subscription of, be used to receive the anti-license confirmation information that described subscription management unit transmits, judge whether described anti-license confirmation information is consistent with the described anti-license confirmation information that prestores,, then delete the anti-authority record that stores if judged result is consistent;
Described the 3rd memory cell is connected with the described Service Processing Unit of quitting the subscription of, and is used to store anti-authority record.
24. system according to claim 23, it is characterized in that, described Service Processing Unit also comprises information generating unit, described information generating unit is connected with the packet generation unit with described subscription management unit, be used for generating anti-license confirmation information, and should anti-license confirmation information be sent to described packet generation unit according to the described service request of quitting the subscription of.
25. system according to claim 24, it is characterized in that, described Service Processing Unit also comprises judging unit, be connected with described information generating unit with described subscription management unit, be used for judging the whether described anti-license confirmation information of confirmation request of the business quit the subscription of according to described production number, if judged result, then sends this for being and quits the subscription of extremely described information generating unit of service request.
26. system according to claim 23, it is characterized in that, described Service Processing Unit also comprises information process unit, this information process unit is connected with the 3rd memory cell with described subscription management unit, be used to receive the described service request of quitting the subscription of, and change the authority record of this production number corresponding service of described the 3rd cell stores into anti-authority record according to the numbering of described smart card and production number.
27. system according to claim 23 is characterized in that, described front end also comprises the EPG unit, and described EPG unit is used for the product in the anti-license confirmation information of programme configuration needs.
28. system according to claim 17 is characterized in that, described anti-license confirmation information is confirmation code, and this confirmation code is unique.
29. a digital TV terminal, this terminal comprises smart card, it is characterized in that, described terminal comprises:
Receiving element, described receiving element are used for the described anti-authorization data packets of receiving front-end transmission and filter out the anti-authorization data packets corresponding with smart card; Wherein, described anti-authorization data packets comprises the numbering of this terminal use's smart card, professional corresponding production number and the anti-license confirmation information quit the subscription of;
First processing unit, described first processing unit are used to receive the anti-authorization data packets that described receiving element transmits, and extract described anti-license confirmation information;
Display unit, described display unit are used to receive the anti-license confirmation information that described first processing unit transmits, and show described anti-license confirmation information.
30. terminal according to claim 29 is characterized in that, described terminal also comprises:
Information transmitting unit is connected with described first processing unit, is used for described anti-license confirmation information is sent to described front end.
31. terminal according to claim 29 is characterized in that, described terminal also comprises first memory cell, and described first memory cell is used to store described anti-license confirmation information.
32. terminal according to claim 29 is characterized in that, described smart card comprises second processing unit and second memory cell; Wherein,
Described second processing unit comprises the record deletion unit at least, and this record deletion unit is used to receive the described anti-authorization data packets that described receiving element transmits, and according to described production number deletion and the professional corresponding authority record of being quit the subscription of;
Second memory cell is connected with described second processing unit, is used to store described authority record.
33. terminal according to claim 32 is characterized in that, described second processing unit also comprises extraction unit, and this extraction unit is used to extract described anti-license confirmation information, and is sent to described second memory cell;
Described second memory cell also is used to store described anti-license confirmation information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100561227A CN101489098A (en) | 2008-01-14 | 2008-01-14 | Service unsubscription method, system and terminal thereof for conditional receiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100561227A CN101489098A (en) | 2008-01-14 | 2008-01-14 | Service unsubscription method, system and terminal thereof for conditional receiving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101489098A true CN101489098A (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100561227A Pending CN101489098A (en) | 2008-01-14 | 2008-01-14 | Service unsubscription method, system and terminal thereof for conditional receiving system |
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| CN (1) | CN101489098A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717550A (en) * | 2013-12-13 | 2015-06-17 | 国家广播电影电视总局广播电视卫星直播管理中心 | Method and device for writing off direct broadcast satellite broadcasting television service |
-
2008
- 2008-01-14 CN CNA2008100561227A patent/CN101489098A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717550A (en) * | 2013-12-13 | 2015-06-17 | 国家广播电影电视总局广播电视卫星直播管理中心 | Method and device for writing off direct broadcast satellite broadcasting television service |
| CN104717550B (en) * | 2013-12-13 | 2018-05-08 | 国家广播电影电视总局广播电视卫星直播管理中心 | The cancellation method and device of direct broadcasting satellite broadcasting television service |
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