CN101820525A - Televiewing control method and device - Google Patents
Televiewing control method and device Download PDFInfo
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- CN101820525A CN101820525A CN200910078929.5A CN200910078929A CN101820525A CN 101820525 A CN101820525 A CN 101820525A CN 200910078929 A CN200910078929 A CN 200910078929A CN 101820525 A CN101820525 A CN 101820525A
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Abstract
The invention provides a televiewing control method and device. The method comprises the following steps: a subordinate user terminal receives superior entitlement control messages sent by a superior conditional access system (CAS), wherein the superior entitlement control messages include program identities, broadcast attributes and encrypted descrambled control words; the subordinate user terminal judges whether the programs corresponding to the program identities are entitled by the superior CAS and the subordinate CAS; and if so, the subordinate user terminal decrypts the superior entitlement control messages to obtain the descrambled control words. By the method, the subordinate user terminal can watch the superior programs only after being entitled by the superior CAS and the subordinate CAS simultaneously, thereby effectively ensuring the benefits of the subordinate and superior network operators. The method is simple to implement and low in cost.
Description
Technical field
The present invention is about the condition receiving system of Digital Television, especially in regard to televiewing control method and device thereof.
Background technology
As everyone knows, condition receiving system (CAS:Conditional Access System) is meant and is used for controlling the system that the user receives broadcast service, be that the user can only receive the broadcast service through authorizing, its objective is the paid service that realizes broadcast system by empowerment management.
A typical digital television system mainly partly is made up of front end, receiving terminal etc.
At front end: Subscriber Management System (SMS) be used for to programme information, user equipment information, program predetermination information, user authorization management information, financial information etc. handle, maintenance and management; Condition receiving system (CAS) is used to finish processing such as the acquisition, generation, transmission of subscriber authorisation control information and user authorization management information; Encryption device uses public key algorithm that information is encrypted; Scrambling equipment (comprising multiplexer, scrambling unit), the DVB scrambling algorithm scrambled program information of employing standard and private data etc.At receiving terminal: the receiving and processing equipment by two separation is formed: i.e. set-top box and safety device.
Wherein, each user's authorization data package informatin is different, at receiving terminal, each user's set-top box at first goes out one's own packet according to the filtering user information of oneself, and send this packet to subscriber secure device, safety device utilizes the product key in the user key decrypt authorized packet, product key after the deciphering is stored in the safety device, and be used to decipher scrambling control word CW, scrambling control word after the deciphering is sent safety device to descrambling module digital program is carried out descrambling outward, the user can watch the program behind the descrambling.
At present, in the CAS transportation, higher level CAS and the CAS of subordinate be operation on the same stage often, how to receive and watches higher level's program, how to realize the control of operator of the superior and the subordinate to program, user and mandate for terminal, and guarantee that the problem of two-stage operator interests does not also have effective method to solve.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of televiewing control method and device thereof, conditional receiving system in two stages.Just can watch higher level's program when making that by this method user terminal obtains the mandate of higher level CAS and the CAS of subordinate at the same time, thereby guarantee the interests of undernet operator and higher level's Virtual network operator effectively, this method realizes that simple cost is low.This device is simple, cost is low.
For achieving the above object, the embodiment of the invention provides a kind of televiewing control method, this method comprises: subordinate user terminal receives the superior entitlement control messages that higher level's condition receiving system sends, and this superior entitlement control messages comprises program identification, plays attribute and encrypted descrambling control word; Judge whether higher level's program of this program identification correspondence obtains the mandate of higher level and subordinate; If judged result is for being, then this subordinate user terminal is decrypted this superior entitlement control messages, with the acquisition descrambled control words.
For achieving the above object, the embodiment of the invention provides a kind of acceptance control device, and this device comprises:
The Entitlement Control Message receiving element is used to receive the superior entitlement control messages that higher level's condition receiving system sends, and this superior entitlement control messages comprises program identification, plays attribute and encrypted descrambling control word;
Information process unit is used to judge whether higher level's program of this program identification correspondence obtains the mandate of higher level and subordinate;
Decrypting device is if the result of this information process unit is for being that then this decrypting device is used for this superior entitlement control messages is decrypted, with the acquisition descrambled control words.
For achieving the above object, the embodiment of the invention provides a kind of televiewing control method, this method comprises: generate the superior entitlement control messages of higher level's program correspondence, this superior entitlement control messages comprises program identification, pre-configured broadcast attribute and encrypted descrambling control word; This superior entitlement control messages is sent to subordinate user terminal.
For achieving the above object, the embodiment of the invention provides a kind of acceptance control device, and this device comprises: higher level's condition receiving system and subordinate's condition receiving system; Wherein,
This higher level's condition receiving system comprises:
The Entitlement Control Message generation unit, this Entitlement Control Message generation unit is used to generate the superior entitlement control messages of higher level's program correspondence, and this Entitlement Control Message comprises program identification, pre-configured broadcast attribute, encrypted descrambling control word;
The Entitlement Control Message transmitting element, this Entitlement Control Message transmitting element is used for this Entitlement Control Message is sent to subordinate user terminal.
The beneficial effect of embodiment of the present invention is, just can watch higher level's program when making that by this method user terminal obtains the mandate of higher level CAS and the CAS of subordinate at the same time, thereby the interests of undernet operator and higher level's Virtual network operator have been guaranteed effectively, this method need not set up other equipment can realize that the simple cost of implementation method is low.
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 the televiewing control method flow chart of the embodiment of the invention 1;
Fig. 2 is the televiewing control method flow chart of the embodiment of the invention 2;
Fig. 3 is the conditional receiving system in two stages televiewing control method flow chart of the embodiment of the invention 3;
Fig. 4 is the flow chart of obtaining the authorization management information and Entitlement Management Message is handled in the embodiment of the invention 3;
Fig. 5 is that the acceptance control device of the embodiment of the invention 4 constitutes schematic diagram;
Fig. 6 is that the acceptance control device of the embodiment of the invention 5 constitutes schematic diagram;
Fig. 7 is that the acceptance control device of the embodiment of the invention 6 constitutes schematic diagram;
Fig. 8 is that the subordinate user terminal of the embodiment of the invention 6 constitutes schematic diagram.
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.
Below in conjunction with accompanying drawing embodiments of the present invention are elaborated.
Embodiment 1
The embodiment of the invention provides a kind of televiewing control method, as shown in Figure 1, this method comprises: generate the superior entitlement control messages of higher level's program correspondence, this superior entitlement control messages comprises program identification, plays attribute, encrypted descrambling control word (CW) (seeing step 101); This superior entitlement control messages is sent to user terminal (seeing step 102).
Like this, this user terminal can be handled this Entitlement Control Message, obtaining descrambled control words, according to this descrambled control words higher level's program of scrambling is carried out descrambling, makes the user can watch TV programme.
In the present embodiment, this Entitlement Control Message can be the ECM packet.
In the present embodiment, the broadcast attribute that is provided with of higher level operator can be and plays this higher level's program standard and broadcast the conditioned disjunction condition of prohibiting broadcasting.For example, if the condition of prohibiting broadcasting, this condition of prohibiting broadcasting can be provided with arbitrarily, for example, utilize a characteristic value of the safety device correspondence of this subordinate user terminal to dispose this condition of prohibiting broadcasting, be " CHR3*0x80000000=0x00000000 " as this condition of prohibiting broadcasting, wherein, this CHR3 represents the characteristic value 3 (safety device can have a plurality of characteristic values) of this safety device, this condition of prohibiting broadcasting is represented: the characteristic value 3 of this safety device and 0x80000000 be 0x00000000 with computing the time, can determine not satisfy the rating condition, forbid playing; That is to say that if the highest order of the characteristic value 3 of this safety device is just to satisfy this condition of prohibiting broadcasting at 0 o'clock, terminal can not be watched higher level's program.In like manner, also configurable broadcast condition, similar with the configuration condition of prohibiting broadcasting, repeat no more herein.And, the invention is not restricted to configuration feature value 3, also can adopt the further feature value or the property value of safety device to be configured.
Like this, after subordinate's user terminal receives this ECM packet, can handle this ECM packet, judge whether to exist the Entitlement Management Message of this higher level's program and whether satisfy the rating condition, if all satisfying this user terminal just can handle this ECM packet, to obtain descrambled control words.
From the above, just can watch higher level's program when making that by this method user terminal obtains the mandate of higher level CAS and the CAS of subordinate at the same time, thereby guarantee the interests of undernet operator and higher level's Virtual network operator effectively that this method realizes that simple cost is low.
Embodiment 2
The embodiment of the invention provides a kind of televiewing control method, as shown in Figure 2, this method comprises: subordinate user terminal receives the superior entitlement control messages that higher level's condition receiving system sends, and this superior entitlement control messages comprises program identification, plays attribute and encrypted descrambling control word (seeing step 201); Judge whether the program of this program identification correspondence obtains the mandate of higher level and subordinate (seeing step 202); If judged result is for being, then this user terminal is decrypted this superior entitlement control messages, with acquisition descrambled control words (seeing step 203).
In the present embodiment, in step 202, if judged result is that then this user terminal is not done any processing to this Entitlement Control Message, like this, this user can not watch this mandate program.
In step 202, judge whether this higher level's program obtains higher level's mandate, can be in the following way: judge whether this user terminal exists the product key of this higher level's program correspondence,, can determine that then this higher level's program obtains higher level's mandate if exist.But, at this moment, this Entitlement Control Message is not decrypted processing, but judge further whether this higher level's program obtains the mandate of subordinate, promptly judge according to this broadcast condition and pre-stored characteristics information whether this higher level's program satisfies the rating condition, wherein, this broadcast attribute can be as the criterion and broadcast the conditioned disjunction condition of prohibiting broadcasting, as described in embodiment 1, this characteristic information can be brought into this standard and broadcast conditioned disjunction and prohibit broadcasting in the expression formula of condition.If prohibit broadcasting expression formula, when meeting this expression formula, can determine not satisfy the rating condition, do not obtain subordinate and authorize; Otherwise satisfy the rating condition, obtain subordinate and authorize.In like manner as can be known,, when meeting this expression formula, determine to satisfy the rating condition, obtain subordinate and authorize if standard is broadcast expression formula; Otherwise do not satisfy the rating condition, do not obtain subordinate and authorize.
For example, if this broadcast attribute is the condition of prohibiting broadcasting, the expression formula of this condition of prohibiting broadcasting is " CHR3*0x80000000=0x00000000 ".This user terminal can be judged according to this expression and pre-stored characteristics information, when if the highest order of the characteristic value 3 of this safety device that this subordinate user terminal prestores is " 1 ", bring this value into this expression formula of prohibiting broadcasting, like this, do not satisfy this expression formula, then the rating condition is satisfied in explanation, has obtained subordinate and has authorized.This shows that the characteristic value 3 that can be used for being provided with this safety device is authorized by subordinate, i.e. " CHR3=0x80000000 ", like this, this safety device does not just satisfy the described expression formula of prohibiting broadcasting, and the terminal use just can watch higher level's program.
From the above, when having only the mandate that obtains higher level CAS and the CAS of subordinate simultaneously, just can handle this higher level's program this higher level's program, to obtain descrambled control words, make the user can watch higher level's program, thereby guaranteed the interests of undernet operator and higher level's Virtual network operator effectively, this method realizes that simple cost is low.
Embodiment 3
The invention provides a kind of televiewing control method, below in conjunction with accompanying drawing 3, is that example describes this method with the conditional receiving system in two stages, and this two-stage receiving system comprises higher level's condition receiving system and subordinate's condition receiving system.
At conditional receiving system in two stages:
In the conditional receiving system in two stages terminal:
In the present embodiment, in step 304, the judged result that whether obtains higher level's mandate as if higher level's program of judging this program identification correspondence is the mandate that does not obtain the higher level, then this Entitlement Control Message is not dealt with the not mandate of prompting program.
In the present embodiment, in step 305,, point out this program to be prohibited broadcasting if judged result is not then done any processing to this Entitlement Control Message for not obtaining the mandate of subordinate yet.
In the present embodiment, at conditional receiving system in two stages:
After carrying out scrambling to higher level's program, higher level's condition receiving system is sent to subordinate's condition receiving system; This subordinate's condition receiving system receives higher level's program that this higher level's condition receiving system transmits, and this higher level's program is not dealt with, and directly is sent to subordinate user terminal.Like this, this subordinate user terminal can utilize the descrambled control words of acquisition that this higher level's program is carried out descrambling, makes the user watch this higher level's program.
In the present embodiment, at conditional receiving system in two stages, can authorize respectively this higher level's program, and this higher level and subordinate's Entitlement Management Message be sent to this subordinate user terminal, make this subordinate user terminal obtain corresponding higher level and subordinate's Entitlement Management Message, its concrete mode as shown in Figure 4.
Like this, as shown in Figure 4, can comprise the steps: at front end
In the present embodiment, can send this subscription request by subordinate's service management unit.
In subordinate:
In the present embodiment, this subordinate's Entitlement Management Message can be the EMM of subordinate packet.
The higher level:
Step 405 generates higher level's Entitlement Management Message according to this subscription request, and this higher level's Entitlement Management Message comprises program identification and product key.
In the present embodiment, this higher level's Entitlement Management Message can be higher level EMM packet.
In subordinate user terminal:
Step 408 is handled the EMM of this subordinate packet, in the present embodiment, can utilize user key that the EMM of this subordinate packet is handled, to obtain the characteristic information of this subordinate user terminal, i.e. " CHR3=0x80000000 ".
Step 409 stores this this characteristic information.Like this, when this subordinate user terminal receives the ECM packet, and when judging whether this higher level's program obtains the mandate of subordinate, can judge whether to satisfy the expression formula of prohibiting broadcasting according to this characteristic information of storage, if do not satisfy the described expression formula of prohibiting broadcasting, the terminal use just can watch higher level's program.
Step 411 can utilize user key that this higher level EMM packet is handled, to obtain the program identification and the product key of this higher level's program correspondence.
Step 412 stores this program identification and this product key.
Wherein, in step 407～step 412, the processing procedure of this higher level and the EMM of subordinate packet can be carried out or carry out according to sequencing simultaneously, can handle as the case may be, above-mentioned flow process only is embodiments of the invention.
In the present embodiment, after obtaining the subordinate of this higher level's program and higher level and authorizing, this subordinate user terminal just can be handled this higher level's program, makes the user watch this higher level's program.
In addition, in the present embodiment, this subordinate user terminal watches the process of subordinate's program and prior art similar, repeats no more herein.
From the above, when having only the mandate that obtains higher level CAS and the CAS of subordinate simultaneously, just can handle this higher level's program this higher level's program, to obtain descrambled control words, make the user can watch higher level's program, thereby guaranteed the interests of undernet operator and higher level's Virtual network operator effectively, this method realizes that simple cost is low.
Embodiment 4
The embodiment of the invention also provides a kind of acceptance control device, and as shown in Figure 5, this device comprises higher level's condition receiving system 501 and subordinate's condition receiving system 502; Wherein, this higher level's condition receiving system 501 comprises Entitlement Control Message generation unit 501b and Entitlement Control Message transmitting element 501c; Wherein, this Entitlement Control Message generation unit 501b is used to generate the superior entitlement control messages of this higher level's program correspondence, and this Entitlement Control Message comprises program identification, plays attribute, encrypted descrambling control word; This Entitlement Control Message transmitting element 501c is used for this Entitlement Control Message is sent to subordinate user terminal.
In the present embodiment, this device can use separately, also can with the conditional receiving system in two stages use that combines, can use according to actual conditions.The course of work of this device repeats no more as described in the embodiment 1 herein.
From the above, this installs the broadcast attribute of configurable higher level's program, and generate corresponding ECM packet and be sent to subordinate user terminal, make when this higher level's program has only the mandate that obtains higher level CAS and the CAS of subordinate simultaneously, this subordinate user terminal just can be handled this higher level's program, to obtain descrambled control words, makes the user can watch higher level's program, thereby guaranteed the interests of undernet operator and higher level's Virtual network operator effectively, this method realizes that simple cost is low.
Embodiment 5
The invention provides a kind of acceptance control device, as shown in Figure 6, this device comprises Entitlement Control Message receiving element 601, information process unit 602 and decrypting device 603; Wherein, this Entitlement Control Message receiving element 601 is used to receive the superior entitlement control messages that higher level's condition receiving system sends, and this superior entitlement control messages comprises program identification, plays attribute and encrypted descrambling control word; This information process unit 602 is used to judge whether the program of this program identification correspondence obtains the mandate of higher level and subordinate; If the result of this information process unit is for being that then this decrypting device 603 is used for this superior entitlement control messages is decrypted, with the acquisition descrambled control words.
In the present embodiment, this device also can comprise descrambling unit 604 and display unit 605; Wherein, this descrambling unit 604 is used to utilize this descrambled control words that the higher level's program that receives by subordinate's condition receiving system is carried out descrambling; This display unit 605 is used to show the program behind the descrambling.
Like this, obtain this descrambled control words after, can utilize this descrambled control words that higher level's program that user terminal receives is carried out descrambling, make the user watch the program behind the descrambling.
In the present embodiment, this information process unit 602 can comprise first judging unit and second judging unit; Wherein, this first judging unit is used to judge whether the product key of higher level's program of this program identification correspondence exists; If the judged result of this first judging unit is for existing, then this second judging unit is used for whether satisfying the rating condition according to this broadcast determined property; If judged result then notifies 603 pairs of described superior entitlement control messages of this decrypting device to be decrypted for satisfying.Wherein, concrete deterministic process repeats no more as described in the embodiment 3 herein.
This device can use separately, also can with the user terminal use that combines, use according to actual conditions.The course of work of this device repeats no more as described in the embodiment 2 herein.
From the above, when having only the mandate that obtains higher level CAS and the CAS of subordinate simultaneously, just can handle this higher level's program this higher level's program, to obtain descrambled control words, make the user can watch higher level's program, thereby guaranteed the interests of undernet operator and higher level's Virtual network operator effectively, this method realizes that simple cost is low.
Embodiment 6
The embodiment of the invention also provides a kind of acceptance control device, is that example is elaborated to this device below in conjunction with accompanying drawing 7, with conditional receiving system in two stages and subordinate user terminal.
At conditional receiving system in two stages:
As shown in Figure 7, this device comprises higher level's condition receiving system 501 and subordinate's condition receiving system 502.This higher level's condition receiving system 501 comprises dispensing unit 501a, Entitlement Control Message generation unit 501b and Entitlement Control Message transmitting element 501c, this dispensing unit 501a is used to dispose the broadcast attribute of higher level's program, effect and the embodiment 4 of Entitlement Control Message generation unit 501b and Entitlement Control Message transmitting element 501c are described, repeat no more herein.
In addition, this higher level's condition receiving system 501 also can comprise memory cell 709, and the user stores the broadcast attribute of this configuration.At this moment, this Entitlement Control Message generation unit 501b can generate corresponding ECM data according to the broadcast attribute that stores.
In the present embodiment, as shown in Figure 7, this higher level's condition receiving system 501 also comprise the higher level multiplexing/scrambling unit 701, be used for this higher level's program is carried out scrambling and higher level's program of scrambling is sent to subordinate's condition receiving system.In the present embodiment, this higher level multiplexing/scrambling unit 701 can combine use with multiplexer, higher level's program is sent to this subordinate's condition receiving system by this multiplexer.And Entitlement Control Message transmitting element 501c and this higher level be multiplexing/scrambling unit 701 merges and uses, use this higher level multiplexing/scrambling unit 701 sends these EMC packets (not shown this Entitlement Control Message transmitting element 501c in the accompanying drawing 7).
This subordinate's condition receiving system 502 also comprise subordinate multiplexing/scrambling unit 702, this subordinate is multiplexing/higher level's program of multiplexing/this scrambling that scrambling unit 701 transmits that scrambling unit 702 is used to receive this higher level, and higher level's program of this scrambling is sent to subordinate user terminal.In the present embodiment, this subordinate multiplexing/scrambling unit 702 can combine use with multiplexer, higher level's program is sent to this subordinate user terminal by this multiplexer.
As shown in Figure 7, this subordinate's condition receiving system 502 also comprises subordinate's Entitlement Management Message generation unit (EMMG of subordinate) 703 and subordinate's Entitlement Management Message transmitting element (EMMS of subordinate) 704; Wherein,
The EMMG of this subordinate 703 is used for generating according to the subscription request of higher level's program of the user of subordinate order subordinate's Entitlement Management Message of this higher level's program correspondence, and this subordinate's Entitlement Management Message comprises the numbering and the corresponding characteristic information of the safety device of this subordinate user terminal; The EMMS of this subordinate 704 is used for this subordinate's Entitlement Management Message is sent to user terminal.
In the present embodiment, can adopt subordinate's subscription management unit 705 to order this higher level's program, and send subscription request, authorize this higher level's program is carried out subordinate according to the user of subordinate request.
In addition, also can adopt subordinate's subscription management unit 705 by the VPN network this subscription request to be sent to higher level's subscription management unit 706, this higher level's subscription management unit 706 is sent to higher level's condition receiving system with this subscription request.
As described in Figure 7, this higher level's condition receiving system 501 also comprises higher level's Entitlement Management Message generation unit 707 and higher level's Entitlement Management Message transmitting element 708; Wherein, this higher level EMMG 707 is used for generating higher level's Entitlement Management Message according to the subscription request that receives, i.e. higher level EMM packet, and this higher level EMM packet comprises program identification and product key.This higher level EMMS 708 is used for this higher level EMM packet is sent to this subordinate user terminal.
In the present embodiment, the higher level: when this higher level EMM packet is sent to subordinate user terminal, this higher level EMMS 708 can send this higher level EMM packet to subordinate's condition receiving system 502 by/scrambling unit 701 multiplexing by the higher level, then by subordinate multiplexing/scrambling unit 702 is sent to subordinate user terminal with this higher level EMM packet, but be not limited thereto, also can directly this higher level EMM packet be sent to this subordinate user terminal by network.
In addition, this ECMS 501c can send these higher level ECM packets to subordinate's condition receiving system 502 by/scrambling unit 701 multiplexing by the higher level, then by subordinate multiplexing/scrambling unit 702 is sent to subordinate user terminal with this higher level ECM packet.But be not limited thereto, also can directly this higher level ECM packet be sent to this subordinate user terminal by network.
In subordinate user terminal:
This device comprises Entitlement Control Message receiving element 601, information process unit 602 and decrypting device 603, descrambling unit 604 and display unit 605, and its effect is similar to Example 4, repeats no more herein.
As shown in Figure 8, this subordinate user terminal also comprises first receiving element 801 and first processing unit 802; Wherein, this first receiving element 801 is used to receive the higher level EMM packet of higher level's program that the user of subordinate that this higher level's condition receiving system sends orders, and this higher level EMM packet comprises program identification and product key; This first processing unit 802 is used for this higher level EMM packet is handled, to obtain the product key of this higher level's program correspondence.
In the present embodiment, this higher level EMM packet handled being meant: utilize the user key that prestores that this EMM packet is decrypted, to obtain the product key of this higher level's program correspondence.
As shown in Figure 8, this subordinate user terminal also comprises second receiving element 803 and second processing unit 804; Wherein, this second receiving element 803 is used to receive the EMM of the subordinate packet that the user of subordinate that subordinate's condition receiving system sends orders higher level's program, and the EMM of this subordinate packet comprises this characteristic information.This second processing unit 804 is used for the EMM of this subordinate packet is handled, to obtain this characteristic information.
In the present embodiment, the EMM of this subordinate packet handled being meant: utilize the user key that prestores that this EMM packet is decrypted, to obtain this characteristic information.
As shown in Figure 8, this subordinate user terminal also comprises memory cell 805, and this memory cell 805 is used to store product key, the characteristic information of this higher level's program correspondence.Like this, when the higher level ECM packet that receives when 502 pairs of this information process units is handled, can determine whether this higher level's program obtains subordinate and the higher level authorizes according to the above-mentioned information that this memory cell 805 stores, concrete judgment mode repeats no more as described in the embodiment 3 herein.
In the present embodiment, be that example describes this acceptance control device with conditional receiving system in two stages and subordinate user terminal, concrete workflow repeats no more as described in the embodiment 3 herein.
From the above, can be at the broadcast attribute of higher level's condition receiving system configuration higher level program, and generate corresponding ECM packet and be sent to subordinate user terminal, make when this higher level's program has only the dual-license that obtains higher level CAS and the CAS of subordinate simultaneously, this subordinate user terminal just can be handled this higher level's program, to obtain descrambled control words, make the user can watch higher level's program, thereby guaranteed the interests of undernet operator and higher level's Virtual network operator effectively, this method realizes that simple cost is low.
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 (20)
1. a televiewing control method is characterized in that, described method comprises:
Subordinate user terminal receives the superior entitlement control messages that higher level's condition receiving system sends, and described superior entitlement control messages comprises program identification, plays attribute and encrypted descrambling control word;
Judge whether higher level's program of described program identification correspondence obtains the mandate of higher level and subordinate;
If judged result is for being, then described subordinate user terminal is decrypted described superior entitlement control messages, with the acquisition descrambled control words.
2. method according to claim 1 is characterized in that, described method also comprises:
Utilize described descrambled control words that the higher level's program that receives by subordinate's condition receiving system is carried out descrambling;
Described higher level's program behind the demonstration descrambling.
3. method according to claim 1 is characterized in that, describedly judges that whether higher level's program of program identification correspondence obtains the mandate of higher level and subordinate, comprising:
Whether the product key of judging higher level's program of described program identification correspondence exists;
If judged result for existing, is then determined to obtain higher level's mandate, and is further judged whether to satisfy the rating condition according to described broadcast attribute and pre-stored characteristics information;
If judged result for satisfying, then determines to obtain the mandate of subordinate.
4. method according to claim 1 is characterized in that, receives in subordinate user terminal before the superior entitlement control messages of higher level's condition receiving system transmission, and described method also comprises:
Receive higher level's Entitlement Management Message of higher level's program that the user of subordinate that described higher level's condition receiving system sends orders, described higher level's Entitlement Management Message comprises program identification and product key;
Described higher level's Entitlement Management Message is handled, to obtain the product key of described higher level's program correspondence.
5. method according to claim 1 is characterized in that, receives in subordinate user terminal before the Entitlement Control Message of higher level's condition receiving system transmission, and described method also comprises:
Subordinate's Entitlement Management Message of higher level's program that the user of subordinate that reception subordinate condition receiving system sends orders, described subordinate Entitlement Management Message comprise the numbering and the corresponding characteristic information of the safety device of described subordinate user terminal;
Described subordinate Entitlement Management Message is handled, to obtain described characteristic information.
6. an acceptance control device is characterized in that, described device comprises:
Entitlement Control Message receiving element, described condition control information receiving element are used to receive the superior entitlement control messages that higher level's condition receiving system sends, and described superior entitlement control messages comprises program identification, plays attribute and encrypted descrambling control word;
Information process unit, described information process unit are used to judge whether higher level's program of described program identification correspondence obtains the mandate of higher level and subordinate;
Decrypting device is if the result of described information process unit is for being that then described decrypting device is used for described superior entitlement control messages is decrypted, with the acquisition descrambled control words.
7. device according to claim 6 is characterized in that, described device also comprises:
Descrambling unit, described descrambling unit are used to utilize described descrambled control words that the higher level's program that receives by subordinate's condition receiving system is carried out descrambling;
Display unit, described display unit are used to show the described higher level's program behind the descrambling.
8. device according to claim 6 is characterized in that, described processing unit comprises:
First judging unit, described first judging unit are used to judge whether the product key of higher level's program of described program identification correspondence exists;
Second judging unit, if the judged result of described first judging unit is for existing, then described second judging unit is used for judging whether to satisfy the rating condition according to described broadcast attribute and pre-stored characteristics information; If judged result then notifies described decrypting device that described superior entitlement control messages is decrypted for satisfying.
9. device according to claim 6 is characterized in that, described device also comprises:
First receiving element, described first receiving element are used to receive higher level's Entitlement Management Message of higher level's program that the user of subordinate that described higher level's condition receiving system sends orders, and described higher level's Entitlement Management Message comprises program identification and product key;
First processing unit, described first processing unit are used for described higher level's Entitlement Management Message is handled, to obtain the product key of described higher level's program correspondence.
10. device according to claim 6 is characterized in that, described device also comprises:
Second receiving element, described second receiving element is used to receive subordinate's Entitlement Management Message of higher level's program that the user of subordinate that subordinate's condition receiving system sends orders, and described subordinate Entitlement Management Message comprises the numbering and the corresponding characteristic information of the safety device of described subordinate user terminal;
Second processing unit, described second processing unit are used for described subordinate Entitlement Management Message is handled, to obtain described characteristic information.
11., it is characterized in that described device also comprises according to claim 9 or 10 described devices:
Memory cell, described memory cell are used to store the product key of described higher level's program correspondence, described characteristic information.
12. a televiewing control method is characterized in that, described method comprises:
Generate the superior entitlement control messages of higher level's program correspondence, described superior entitlement control messages comprises program identification, pre-configured broadcast attribute and encrypted descrambling control word;
Described superior entitlement control messages is sent to subordinate user terminal.
13. method according to claim 12 is characterized in that, described method also comprises:
The subscription request that subordinate's condition receiving system is ordered higher level's program according to the user of subordinate generates subordinate's Entitlement Management Message of described higher level's program correspondence, and described subordinate Entitlement Management Message sent to subordinate user terminal, described subordinate Entitlement Management Message comprises the numbering and the corresponding characteristic information of the safety device of described subordinate user terminal;
Described higher level's condition receiving system is ordered subscription request generation higher level's Entitlement Management Message of higher level's program according to the user of subordinate and described higher level's Entitlement Management Message is sent to described subordinate user terminal, and described higher level's Entitlement Management Message comprises program identification and product key.
14. method according to claim 12, its feature just are that described method also comprises:
Described higher level's condition receiving system is sent to subordinate's condition receiving system with higher level's program of scrambling;
Described subordinate condition receiving system is sent to subordinate user terminal with higher level's program of described scrambling.
15. method according to claim 12 is characterized in that, described method also comprises:
Described higher level's condition receiving system disposes the broadcast attribute of described higher level's program;
Store described broadcast attribute.
16. an acceptance control device is characterized in that, described device comprises: higher level's condition receiving system and subordinate's condition receiving system; Wherein,
Described higher level's condition receiving system comprises:
The Entitlement Control Message generation unit, described Entitlement Control Message generation unit is used to generate the superior entitlement control messages of higher level's program correspondence, and described Entitlement Control Message comprises program identification, pre-configured broadcast attribute, encrypted descrambling control word;
The Entitlement Control Message transmitting element, described Entitlement Control Message transmitting element is used for described Entitlement Control Message is sent to subordinate user terminal.
17. device according to claim 16 is characterized in that, described subordinate condition receiving system comprises:
Subordinate's Entitlement Management Message generation unit, described subordinate Entitlement Management Message generation unit is used to receive the subscription request that the user of subordinate orders higher level's program, and generating subordinate's Entitlement Management Message of described higher level's program correspondence according to described subscription request, described subordinate Entitlement Management Message comprises the numbering and the corresponding characteristic information of the safety device of described subordinate user terminal;
Subordinate's Entitlement Management Message transmitting element, described subordinate Entitlement Management Message transmitting element is used for described subordinate Entitlement Management Message is sent to described subordinate user terminal.
18. device according to claim 17 is characterized in that, described higher level's condition receiving system also comprises:
Higher level's Entitlement Management Message generation unit, described higher level's Entitlement Management Message generation unit are used for generating higher level's Entitlement Management Message according to described subscription request, and described higher level's Entitlement Management Message comprises program identification and product key;
Higher level's Entitlement Management Message transmitting element, described higher level's Entitlement Management Message transmitting element is used for described higher level's Entitlement Management Message is sent to described subordinate user terminal.
19. device according to claim 16, its feature just are that described higher level's condition receiving system also comprises higher level's scrambling unit, are used for described higher level's program is carried out scrambling and higher level's program of scrambling is sent to subordinate's condition receiving system;
Described subordinate condition receiving system also comprises subordinate's scrambling unit, and described subordinate scrambling unit is used to receive higher level's program of the described scrambling that described higher level's scrambling unit transmits, and higher level's program of described scrambling is sent to subordinate user terminal.
20. device according to claim 16 is characterized in that, described higher level's condition receiving system also comprises:
Dispensing unit, described dispensing unit are used to dispose the broadcast attribute of described higher level's program;
Memory cell, described memory cell are used to store described broadcast attribute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910078929.5A CN101820525A (en) | 2009-02-27 | 2009-02-27 | Televiewing control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910078929.5A CN101820525A (en) | 2009-02-27 | 2009-02-27 | Televiewing control method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101820525A true CN101820525A (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910078929.5A Pending CN101820525A (en) | 2009-02-27 | 2009-02-27 | Televiewing control method and device |
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| Country | Link |
|---|---|
| CN (1) | CN101820525A (en) |
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2009
- 2009-02-27 CN CN200910078929.5A patent/CN101820525A/en active Pending
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Application publication date: 20100901 |