CN101060613A - Digital TV broadcasting service receiving and deciphering method, master terminal and its slave terminal - Google Patents
Digital TV broadcasting service receiving and deciphering method, master terminal and its slave terminal Download PDFInfo
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- CN101060613A CN101060613A CNA2006100762674A CN200610076267A CN101060613A CN 101060613 A CN101060613 A CN 101060613A CN A2006100762674 A CNA2006100762674 A CN A2006100762674A CN 200610076267 A CN200610076267 A CN 200610076267A CN 101060613 A CN101060613 A CN 101060613A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
- H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
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- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The disclosed receive and decipher method for digital TV broadcast business comprises: a master terminal applies the copyright object of relative digital TBV broadcast business and/or program for the slave terminal; the latter receives and deciphers the relative business and/or program. This invention enhances flexibility for broadcast business.
Description
Technical field
The present invention relates to the digital TV broadcasting service technical field, especially relate to a kind of receiving and deciphering method of digital TV broadcasting service.
Background technology
In digital TV broadcasting service, the user at first must register at the digital television broadcasting server end by terminal, the user just can provide by terminal subscribes broadcast television content provider after the registration one or multinomial digital TV broadcasting service, subscribe to successfully that the back terminal can obtain that server end issues one professional right objects (the Service RO with this terminal binding, Service Right Object), be used for the digital TV broadcasting service content that radio and television services device end issues is decrypted processing.
In addition, the user also can select pay-per-view to watch digital TV broadcasting service, make when watching digital TV broadcasting service in this way, terminal can receive program right objects (the Program RO that server end issues, Program Right Object), be used for the corresponding digital television broadcasting program that server end issues is decrypted processing, wherein this Program RO will cease to be in force automatically after watching the digital television broadcasting program that this server end issues.
But present most of user is still by registering at server end, what issue with the acquisition server end uses the Service RO of terminal binding with self, and the digital TV broadcasting service that receives is decrypted processing, thereby realize the broadcast television service content of watching that self subscribes to by the Service RO that obtains.Generally, the digital television broadcasting server end is as follows to the main process that the digital TV broadcasting service that issues carries out encryption:
Use ephemeral keys (STK, Short Term Key) that the digital TV broadcasting service that issues is carried out encryption;
Use long term keys (LTK, Long Term Key) that ephemeral keys STK is carried out encryption;
Use right objects encryption key (REK, Right Object Encryption Key) that long term keys LTK is carried out encryption; And
Use terminal public key that right objects encryption key REK is carried out encryption;
Digital TV broadcasting service and ephemeral keys STK after server end will be encrypted are issued to terminal; And
Long term keys LTK after encrypting and right objects encryption key REK be carried among the right objects RO be issued to terminal, also comprise necessary encryption rule information among the RO that issues certainly.
Correspondingly, to be decrypted the main process of processing as follows for the digital TV broadcasting service received of end-on:
The use terminal secret key decrypts the right objects encryption key REK among the RO;
Use right objects encryption key REK decrypts the long term keys LTK among the RO; And
The ephemeral keys STK that uses long term keys LTK deciphering to receive;
Use the ephemeral keys STK after deciphering that the digital TV broadcasting service that receives is decrypted processing.
Please refer to Fig. 1, this figure is the main composition structured flowchart of existing digital TV broadcasting service system, wherein existing digital TV broadcasting service system mainly comprises service application unit (SA, ServiceApplication) 100, distribution of services adaptation unit (SD/A, Service Distribution/Adaptation) 200 subscription management unit (SM,, Subscription Management) 300 right objects issue center (RI,, Right Issuer) 400 and terminal (Terminal) 500, wherein the concrete effect of each component units is as follows:
The digital TV broadcasting service that provides concrete is responsible in service application unit 100;
Distribution of services adaptation unit 200 is responsible for the adaptive of digital TV broadcasting service and distribution, and is responsible for generating relevant information such as service attribute and sends to service application unit 100 or subscription management unit 300; Distribution of services adaptation unit 200 also is responsible for generating ephemeral keys STK or receiving the ephemeral keys STK that subscription management unit 300 generates in addition, and utilizes STK that the digital TV broadcasting service that issues is carried out encryption;
Right objects issue center 400, the long term keys LTK that is responsible for utilizing subscription management unit 300 to generate generates the right objects RO of related service or program and is handed down to terminal 500; Here need to prove: right objects issue center 400 can be an independently logic entity, also can be a functional entity that is present in the subscription management unit 300;
Terminal 500, be responsible for before the user formally subscribes to digital TV broadcasting service, in subscription management unit 300, registering, the certificate of identity verification when carrying out authentication to obtain the user, and the end message of being responsible for providing necessary and user profile are to subscription management unit 300; Terminal 500 also is responsible for receiving the RO that right objects issue center 400 issues, and ephemeral keys STK and digital TV broadcasting service that responsible reception distribution of services adaptation unit 200 issues are also play.
Please refer to Fig. 2, this figure is that the user registers at the digital television broadcasting server end by terminal, and watches the processing procedure schematic diagram of the digital TV broadcasting service that the digital television broadcasting server end issues, wherein:
S1, user register at the digital television broadcasting server end by terminal;
S2, succeed in registration after, the user subscribes to related-program by terminal at the digital television broadcasting server end;
The RO of the related-program that S3, server end generation respective user are subscribed to also is handed down to terminal;
The digital television broadcasting program of having subscribed to that S4, terminal reception server end issue; And
S5, RO that issue based on server end, that also bound together with self carry out follow-up decryption processing to the digital television broadcasting program that receives.
But in above-mentioned processing procedure, because the user uses current terminal subscribes program, the RO to should subscription programs that issues of server end will be in the same place with user's current terminal binding like this, the user can only use current terminal based on the RO of binding the digital TV broadcasting service that receives to be decrypted and to watch, do not support the user to use other-end to watch the ability of the digital television broadcasting program of self having subscribed to, make the user watch that there is shortcoming in the flexibility of the digital television broadcasting program of self having subscribed to.
In addition, also have the technology of " territory RO " in digital copyright management (DRM, Digital Right Management) field, wherein territory RO is meant that one group of equipment is by adding same territory, shared authority that RO gave.Please refer to Fig. 3, this figure is the processing procedure schematic diagram that equipment obtains territory RO in the prior art in the copyright issue center, wherein:
1, equipment sends to copyright issue center (RI, Rights Issuer) and adds territory request message (JoinDomain Request);
2, RI adds territory success message (Join Domain Response) to the equipment feedback, wherein meeting hosting domain key information in the JoinDomain Response message;
Add the territory agreement complete after, will in equipment, set up the territory context, the contextual content in territory mainly comprises the security related information in this territory and domain key information etc., wherein the contextual foundation in territory is the necessary condition that equipment installed and used territory RO later on;
3, equipment is to RI request domain RO;
4, RI uses domain key that territory RO is carried out sending to equipment after the encryption;
5, equipment is decrypted processing based on the domain key in the context of territory to the territory RO that receives, and obtains territory RO.
But be to use territory RO technology, in case an equipment has joined a territory, will obtain all authorities that the territory RO in this territory is given, if equipment just wishes to obtain the part authority that the territory RO in a territory is given, then present territory RO technology also can't realize.
Summary of the invention
The present invention proposes a kind of receiving and deciphering method of digital TV broadcasting service, the user must use the drawback of subscribing to terminal receiving and deciphering digital TV broadcasting service in the prior art to solve, extending user is watched the flexibility of digital TV broadcasting service, and uses the authority of right objects flexibly.
Correspondingly, the invention allows for a kind of master terminal and corresponding from terminal.
For addressing the above problem, the technical scheme that the present invention proposes is as follows:
A kind of receiving and deciphering method of digital TV broadcasting service comprises step:
Master terminal is from the digital TV broadcasting service of the corresponding master terminal subscription of terminal to apply and/or the right objects of program at the digital TV broadcasting service network side;
Based on the right objects of master terminal for self applying for, corresponding digital TV broadcasting service and/or the program subscribed to by master terminal that network side is issued carry out receiving and deciphering from terminal.
Preferably, described master terminal specifically comprises for the process from the terminal to apply right objects:
Master terminal comprises the terminal iidentification from terminal be retrieved as the first required necessary information of the described right objects of application from terminal in described first necessary information;
First necessary information that master terminal will get access to and oneself comprise the master terminal permission from the sign of the digital TV broadcasting service of terminal plays and/or the sign of program as being carried on the subscription management unit that sends to network side the right objects request message from the second required necessary information of the described right objects of terminal to apply in described second necessary information;
The right objects request message that described subscription management unit is sent according to master terminal allows master terminal from the program encryption authenticate key of the sign correspondence of the sign corresponding service encrypting and authenticating key of the digital TV broadcasting service of terminal plays and service regeulations and/or program and the right objects issue center that service regeulations send to network side; And
With first necessary information with do not comprise master terminal and allow to send to the right objects issue center simultaneously from second necessary information of the sign of the sign of the digital TV broadcasting service of terminal plays and/or program;
Professional encrypting and authenticating key and service regeulations and/or program encryption authenticate key and the service regeulations and first necessary information thereof that send according to the subscription management unit described right objects issue center and do not comprise master terminal and allow to generate corresponding right objects from second necessary information of the sign of the sign of the digital TV broadcasting service of terminal plays and/or program; And
According to the terminal iidentification that comprises in first necessary information right objects that generates is handed down to from terminal from terminal.
Preferably, described master terminal specifically comprises in the process of obtaining first necessary information from terminal:
Master terminal is to being the first required necessary information of the described right objects of application from terminal request;
Request from the terminal response master terminal is sent feeds back to master terminal with described first necessary information.
Preferably, described master terminal and from carrying out information interaction based on short range wireless transmission mode or wire transmission mode between the terminal.
Preferably, all master terminals of storage be from terminal to apply right objects when success in the described subscription management unit, and corresponding master terminal identifies and from the mapping relations between the terminal iidentification;
The terminal iidentification that also comprises master terminal in described second necessary information; Described master terminal specifically also comprises for the process from the terminal to apply right objects:
Described subscription management unit is according to all master terminals signs of the terminal iidentification of master terminal and self storage with from the mapping relations between the terminal iidentification, judge master terminal for other from terminal to apply during effective right objects, to master terminal feedback request refuse information; And
Prompting master terminal user makes to other and asks after effective right objects inefficacy of terminal to apply again.
Preferably, the accounts information that also comprises the master terminal user in described second necessary information; Described master terminal specifically also comprises for the process from the terminal to apply right objects:
Described subscription management unit allows from sign and/or the sign of program and master terminal user's the accounts information thereof of the digital TV broadcasting service of terminal plays according to master terminal, when judging master terminal and allow not subscribe in master terminal user's accounts information from the digital TV broadcasting service of terminal plays and/or program, prompting master terminal user subscribes to processing to allowing from the digital TV broadcasting service and/or the program of terminal plays.
Preferably, described right objects issue center generates and also comprises the step of using the right objects encryption key that professional encrypting and authenticating key and/or program encryption authenticate key are encrypted before the right objects.
Preferably, described master terminal specifically also comprises for the process from the terminal to apply right objects:
The right objects issue center is used and from the PKI of terminal the right objects encryption key is encrypted; And
Right objects encryption key after encrypting is handed down to from terminal.
Preferably, described master terminal specifically also comprises for the process from the terminal to apply right objects:
After receiving the right objects that the right objects issue center issues from terminal, send acknowledge message to the subscription management unit;
When the subscription management unit receives from the affirmation message that terminal is sent, with the terminal iidentification of described master terminal with from setting up mapping relations and storage between the terminal iidentification of terminal; And determine whether digital TV broadcasting service and/or the program subscribed to from the terminal plays master terminal are chargeed.
Preferably, described master terminal specifically also comprises for the process from the terminal to apply right objects:
After the subscription management unit received the affirmation message of sending from terminal, the notice master terminal had successfully obtained right objects from terminal.
Preferably, also be included as from the type of the right objects of terminal to apply in described second necessary information and be life cycle from the right objects of terminal to apply;
Described right objects issue center generates the right objects with corresponding types and life cycle according to the type and the life cycle of the right objects that comprises in second necessary information.
Preferably, describedly the process that digital TV broadcasting service and/or program carry out receiving and deciphering is specifically comprised from terminal:
From terminal use self private key the right objects encryption key of encrypting is decrypted; And
Use the right objects encryption key after the deciphering that the professional encrypting and authenticating key and/or the program encryption authenticate key of the encryption that comprises in the right objects is decrypted;
Use professional encrypting and authenticating key and/or program encryption authenticate key after deciphering that the encryption ephemeral keys that the professional adaptive Dispatching Unit of network side issues is decrypted from terminal; And
Use the ephemeral keys after deciphering that enciphered digital visual broadcast service and/or the program that the adaptive Dispatching Unit of business issues carried out receiving and deciphering.
Preferably, the process of corresponding digital TV broadcasting service of subscribing to from the terminal plays master terminal and/or program is subjected to the control of master terminal; Or by controlling voluntarily from terminal.
Preferably, described method also comprises step: master terminal is to controlling and deletion control for upgrading from the right objects of terminal to apply.
Preferably, described master terminal is the portable terminal with digital TV broadcasting service receiving ability; Described is to receive and good common terminal or the car-mounted terminal of broadcast performance from terminal.
A kind of master terminal comprises:
First communication unit is used for and communicates from terminal, obtains the relevant information from terminal;
The right objects application unit, be used for according to described first communication unit obtain from terminal related information, be the digital TV broadcasting service subscribed to from the corresponding master terminal of terminal to apply and/or the right objects of program at the digital TV broadcasting service network side.
Preferably, described master terminal also comprises the second communication unit, be used for and communicate, to playing corresponding digital TV broadcasting service that master terminal subscribe to based on described right objects application unit for the right objects of self application from terminal and/or the process of program is controlled from terminal.
Preferably, described master terminal also comprises third communication unit, be used for and communicate from terminal, to described right objects application unit for upgrade control and deletion control from the right objects of terminal to apply.
A kind of from terminal, comprising:
Communication unit is used for communicating with master terminal, and the relevant information of master terminal requirement is provided to master terminal;
The rights object acquisition unit is used to obtain that the digital TV broadcasting service network side issues is the digital TV broadcasting service subscribed to from the corresponding master terminal of terminal to apply and/or the right objects of program by master terminal;
The receiving and deciphering unit is used for the right objects that gets access to based on described rights object acquisition unit, and corresponding digital TV broadcasting service and/or the program subscribed to by master terminal that network side is issued carry out receiving and deciphering.
Preferably, describedly also comprise control unit, be used for the right objects that gets access to based on described rights object acquisition unit is play corresponding digital TV broadcasting service that master terminal subscribes to and/or the process of program is controlled from terminal.
The beneficial effect that the present invention can reach is as follows:
Technical solution of the present invention by by a master terminal be one from terminal at digital TV broadcasting network side application right objects RO, make from terminal and can watch to the user for digital TV broadcasting service and/or program that the RO that self applies for plays the master terminal subscription based on master terminal, thereby realized one do not subscribe to digital TV broadcasting service and/or program play the digital TV broadcasting service that another master terminal subscribed to and/or the purpose of program from terminal, also realized master terminal is play digital TV broadcasting service and/or program to slave unit control simultaneously, watch the flexibility of the digital TV broadcasting service that self subscribes to thereby well expanded the user, and make the user can use the authority of RO flexibly.
Description of drawings
Fig. 1 is the main composition structured flowchart of existing digital TV broadcasting service system;
Fig. 2 registers at the digital television broadcasting server end by terminal for the user, and watches the processing procedure schematic diagram of the digital TV broadcasting service that the digital television broadcasting server end issues;
Fig. 3 obtains the processing procedure schematic diagram of territory RO in the copyright issue center for equipment in the prior art;
Fig. 4 is the main realization principle flow chart of the receiving and deciphering method of digital TV broadcasting service of the present invention;
Fig. 5 is that master terminal is the concrete processing procedure embodiment schematic diagram from terminal to apply RO in the methods of the invention;
Fig. 6 is the main composition structured flowchart of the master terminal of the present invention's proposition;
The main composition structured flowchart that Fig. 7 proposes for the present invention from terminal.
Embodiment
The present invention provides a kind of technical scheme here, by one have the terminal commonly used (hereinafter referred master terminal) of subscribing to the digital TV broadcasting service function for other in the registration of digital TV broadcasting network side but do not subscribe to non-common terminal (hereinafter referred is from terminal) the application right objects RO of digital TV broadcasting service, can to use master terminal from terminal be the digital TV broadcasting service that the RO receiving and deciphering master terminal of its application is subscribed to thereby make.
Be explained in detail to the main realization principle of technical solution of the present invention, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
Please refer to Fig. 4, this figure is the main realization principle flow chart of the receiving and deciphering method of digital TV broadcasting service of the present invention, and its main implementation procedure is as follows:
Step S10, master terminal is from the digital TV broadcasting service of the corresponding master terminal subscription of terminal to apply and/or the right objects RO of program at the digital TV broadcasting service network side;
Step S20, based on the above-mentioned RO for self applying for of master terminal, corresponding digital TV broadcasting service and/or the program subscribed to by master terminal that network side is issued carry out receiving and deciphering from terminal.
Before the specific implementation process of describing technical solution of the present invention, two preconditions are described earlier; If but in the specific implementation process of technical solution of the present invention, carry out two preconditions here, do not influence the enforcement of technical solution of the present invention yet, because can in time carry out two preconditions mentioning here in the specific implementation process of technical solution of the present invention, adopting this describing mode is the understanding that helps following technical scheme more.
Here two preconditions mentioning are:
1) master terminal and among subscription management cell S M, register respectively from terminal;
2) master terminal and among the RI of copyright issue center, register respectively from terminal.
Because will obtaining the digital TV broadcasting service that network side issues, just must in SM, register any equipment, master terminal and will provide some necessary information to SM respectively during registration from terminal, as terminal iidentification (ID), information such as terminal capability, pass through registration process, master terminal and contract with SM respectively from terminal, and obtain the certificate information that when RI carries out device authentication, needs; Master and slave terminal connects by exchange channels and SM respectively during registration, all the transmitting by this exchange channels alternately of various information.
Because any equipment will receive the RO of RI distribution and just must register in RI, thereby set up a kind of state of mutual trust, after finishing, registration in equipment, sets up RI contextual devices environment, have only in the equipment and set up the RI context, could be by the authentication of RI, thus the RO of RI distribution obtained; When master and slave terminal is registered in RI, also be to connect by exchange channels and RI, all the transmitting alternately of various information by this exchange channels.
In order to implement technical solution of the present invention, can in subscription management cell S M, set up a storage territory in advance, being at any master terminal from terminal to apply RO when success, SM is with the master terminal of correspondence sign and carry out related from terminal iidentification, and with association＜master identification, slave unit sign〉be stored in this storage territory, when a certain master terminal is a certain RO inefficacy from terminal to apply, SM deletes this correspondence＜master identification, slave unit sign in the storage territory〉associated record.
One of them master terminal the digital TV broadcasting network side be one can be as follows from terminal to apply to the detailed process of the RO of the digital TV broadcasting service should master terminal subscribed to and/or program:
A. master terminal is being retrieved as the first required necessary information from terminal to apply RO from terminal, wherein comprises the terminal iidentification (ID) from terminal in this first necessary information and some otherly is application RO required necessary information, and its detailed process is:
A1) master terminal is to being the first required necessary information of application RO from terminal request;
A2) request of sending from the terminal response master terminal was collected the first corresponding necessary information and was fed back to master terminal.
Master terminal and wherein from carrying out information interaction based on short range wireless transmission mode or wire transmission mode between the terminal; That is to say in order to realize that master terminal is to the control from terminal plays digital TV broadcasting service and/or program, need between master and slave terminal, to set up in advance a kind of mutual communication mechanism, be to need to set up in advance information transfering path between the master and slave terminal, the information transfering path here can be realized based on short range wireless transmission technology such as existing infrared or bluetooths, also can realize based on existing wire transmission mode.
B. master terminal wherein comprises the master terminal permission from the sign of the digital TV broadcasting service of terminal plays and/or the sign of program with above-mentioned first necessary information that gets access to from as being carried on the SM that sends to network side the RO request message jointly from the second required necessary information of terminal to apply RO in this second necessary information; The accounts information, desire that also comprises terminal iidentification, the master terminal user of master terminal in addition in second necessary information for from the type of the RO of terminal to apply and desire thereof for from the life cycle of the RO of terminal to apply etc.;
C.SM is according to the above-mentioned RO request message of sending of master terminal, and master terminal is allowed from the program encryption authenticate key (PEAKs) of the sign correspondence of the sign corresponding service encrypting and authenticating key (SEAKs) of the digital TV broadcasting service of terminal plays and service regeulations and/or program and the right objects issue center RI that service regeulations send to network side; And with first necessary information with do not comprise master terminal and allow also to send to RI simultaneously from second necessary information of the sign of the sign of the digital TV broadcasting service of terminal plays and/or program; Wherein professional encrypting and authenticating key (SEAKs) here and/or program encryption authenticate key (PEAKs) are exactly long term keys;
Wherein in step C processing procedure, SM also will be according to all master terminals signs of the terminal iidentification of master terminal and self storage with from the mapping relations between the terminal iidentification associated record, judge master terminal whether for other from terminal to apply also effective RO at present, if, SM is just to master terminal feedback request refuse information, and prompting master terminal user asks after losing efficacy for other effective RO from terminal to apply making again; Otherwise continue following processing, the purpose of Chu Liing is to guarantee can only there be one by synchronization can to use master terminal from terminal be the RO of its application like this, thereby guarantees the copyright protection principle;
SM also will allow from sign and/or the sign of program and master terminal user's the accounts information thereof of the digital TV broadcasting service of terminal plays according to master terminal in addition, judge that master terminal allows whether to subscribe to from the digital TV broadcasting service and/or the program of terminal plays in master terminal user's accounts information, if continue following processing; Otherwise SM prompting master terminal user subscribes to processing to allowing from the digital TV broadcasting service and/or the program of terminal plays;
SEAKs and service regeulations and/or PEAKs and the service regeulations and first necessary information thereof that D.RI sends according to SM and do not comprise master terminal to allowing from second necessary information of the sign of the sign of the digital TV broadcasting service of terminal plays and/or program, generate corresponding RO, have information such as the type of indicating in second necessary information and life cycle as the RO that generates; Wherein RI also will use REK that SEAKs and/or PEAKs are encrypted before generating RO; For the sake of security, RI also will use from the PKI of terminal REK is encrypted;
E.RI is according to being handed down to from terminal from the terminal iidentification of the terminal RO with above-mentioned generation of comprising in first necessary information, and RI also will will use the REK after the terminal public key encryption also to be handed down to from terminal simultaneously; It is specific as follows that it issues mode:
Follow-up, receive the RO that RI issues from terminal after, send an acknowledge message to SM subscription management unit; When SM receives from the affirmation message that terminal is sent, with the terminal iidentification of above-mentioned master terminal with between the terminal iidentification of terminal, set up a mapping relations associated record and be stored in the corresponding storage territory; Simultaneously SM can also here determine whether the processing of chargeing of the digital TV broadcasting service subscribed to from the terminal plays master terminal and/or program; After simultaneously SM receives the affirmation message of sending from terminal, also to notify master terminal from the successful acquisition of terminal master terminal be the RO of its application.
As shown in Figure 5, for master terminal in the methods of the invention is a concrete processing procedure embodiment schematic diagram from terminal to apply RO, wherein master terminal is as follows in the detailed process of digital TV broadcasting network side application RO from terminal:
Establish a communications link between b1, the master and slave terminal, master terminal is to the information that needs when terminal request generates RO, other information of needs when wherein information requested comprises the device identification (Device ID) from terminal and generates RO, wherein Device ID is the global unique identification of equipment, feeds back the master terminal information requested from terminal to master terminal.
B2, master terminal send a request message to the SM of digital TV broadcasting network side, with request SM is from RO by the decision of the parameter the request message of terminal distribution, so that can receive all or part of digital TV broadcasting service and/or the program of playing the master terminal subscription from terminal.Comprise in the request message of this transmission: the device identification of master terminal, master terminal user's accounts information, the device identification of slave unit, master terminal allow the sign of the business of having subscribed to from the master terminal that terminal is used and/or program sign, generate the type of RO, required other information from terminal etc. when generating the life cycle of RO and generating RO.
Each parameter information that to be master terminal comprise in the request message that SM sends is as shown in the table:
| Parameter | Number of parameters | Type | Parameter declaration |
| Master Device ID | 1 | String | The device identification of master terminal |
| User ID | 1 | String | Master terminal user's accounts information |
| Slaver Device ID | 1 | String | Device identification from terminal |
| Program ID | 1 to n | String | The sign of the program that the master terminal that the master terminal permission is used from terminal has been subscribed to |
| Service ID | 0 to n | String | The sign of the business that the master terminal that the master terminal permission is used from terminal has been subscribed to |
| Ro Type | 1 | Interger | The type of RO: Ro Type=0 represents that the life cycle of RO is using once just termination automatically of back, and RO lost efficacy; Ro Type=1 represents that the life cycle of RO calculates by second, after the expiration of life cycle official hour, the RO life cycle finishes, and RO lost efficacy |
| Life Time | 1 | Integer | The life cycle of RO is integer second; When the life cycle of RO was calculated in due order, this numerical value used the total time maximum as one; When the life cycle of RO was calculated by the time, this numerical value was exactly the whole life of RO |
| Device Info | 1 to n | String/other | Generate required other information of RO from terminal |
Wherein the specific explanations of each parameter information field is as follows in the above table:
Master Device ID: the device identification of master terminal, the device identification of this master terminal is included in the solicited message, can make SM according to this device identification master terminal be carried out authentication;
User ID: the accounts information of master terminal, the main purpose that comprises this information in the solicited message is whether to have subscribed to relevant digital TV broadcasting service and/or program according to account information inquiry master terminal user under the account, is used for simultaneously judging whether the Service ID that request message comprises and/or the business and/or the program of Program ID appointment are business and/or the programs of having subscribed under the account information; And owing to might be some communal facilitys from terminal, so use digital TV broadcasting service to charge from terminal, charge information will produce on account information.
Slaver Device ID: from the device identification of terminal, this device identification is mainly used in SM and RI to carrying out authentication from terminal; SM and RI inquire about whether have the log-on message of this equipment according to this device identification in database separately, if can not find this sign appointed equipment log-on message, then point out the user to the registration of being correlated with from terminal.
Service ID and Program ID: digital TV broadcasting service sign and program identification, the master terminal that these two kinds of identification informations all are appointments allows from the business of terminal use and/or the ID of program, SM judges at first after obtaining request message whether the business and/or the programs of the appointment of these two kinds signs are subscribed in master terminal user's accounts information, if do not subscribe to then point out the master terminal user to subscribe to or select and withdraw from.If the business and/or the program of above-mentioned business and/or program identification appointment are all subscribed to, then RI needs after obtaining these two kinds of identification informations to counterpart keys SEAKs and/or the PEAKs of SM request with these business and/or program identification appointment, and the key service regeulations, and then generate the RO that comprises these key informations.
Ro Type:RO type, an important parameter of decision RO life cycle when RO generates, this parameter can allow user flexibility that the occupation mode from terminal acquisition RO of different places is set, if the user uses a certain common equipment conduct from terminal in public places, then for this common equipment application RO the time, Ro Ttype=0 can be set, the life cycle of RO will be calculated in due order like this, and for once, this RO will cease to be in force automatically after obtaining RO from terminal and using once, so just guarantee that the authority that RO has do not used by other users.When the user is for other equipment of oneself such as when mobile unit or RO of family digital television broadcasting receiving device application, Ro Type=1 can be set, the life cycle of RO just will be calculated by the time like this, and the user repeatedly uses RO to carry out the reception and the broadcast of digital TV broadcasting service at slave unit before can finishing in the life cycle of RO.
The life cycle parameter of Life Time:RO, this parameter value have two kinds of purposes, and when Ro Type=0, this parameter value uses the maximum duration of this RO as single, surpasses maximum duration, and RO will cease to be in force automatically; When Ro Type=1, this parameter value is exactly the actual life cycle length of RO; Life cycle is to calculate second.
B3, SM carry out authentication to master terminal, judge whether master terminal is registered at SM, if carry out b5; Otherwise carry out b4;
If the b4 master terminal is not registered at SM as yet, then SM prompting master terminal is registered in SM;
Whether b5, SM, judge and register among SM from terminal carrying out authentication from terminal according to the device identification from terminal that provides in the request message, if carry out b7; Otherwise carry out b6;
If b6 does not register at SM as yet from terminal, then the SM prompting is registered among SM from terminal;
If the master and slave terminal of b7 is registered in SM respectively, then the request message sent according to master terminal of SM is further handled: SM according to the device identification inquiry master terminal of master terminal whether for a certain from terminal to apply RO, if SM does not inquire relevant associated record, show that then master terminal is not any from terminal to apply RO for other, proceed the b9 operation; If can inquire relevant associated record, then carry out b8;
If b8 SM can inquire relevant associated record, then represent master terminal for a certain from terminal to apply RO, and this RO did not lose efficacy as yet, then SM sends the unaccepted message of application to master terminal, and apply for perhaps abandon application again after the RO inefficacy of pointing out the master terminal user can select to apply for last time;
B9, SM inquire about digital TV broadcasting service and/or the program that this user has subscribed to according to the accounts information of master terminal, whether the business used from terminal of the permission that comprises in the solicited message that relatively master terminal is sent and/or program be among business of having subscribed to and/or program, if carry out b11 then; Otherwise carry out b10;
If b10 is not in business of having subscribed to and/or program, then SM prompting master terminal user subscribes to digital TV broadcasting service and/or the program that allows from the terminal use earlier, and this moment, the user also can select to withdraw from;
B11, if business and/or program that the permission that comprises in the solicited message is used from terminal are subscribed to, then SM sends following information to RI: the device identification of master terminal (Master Device ID), device identification (Slaver Device ID) from terminal, the type of RO (Ro Type), the life cycle of RO (LifeTime), permission is from the sign (Service ID) of the digital TV broadcasting service of terminal use and/or the sign (Program ID) of program, from other information (Device Info) of terminal etc., and require RI be SlaverDevice ID appointment from RO who determines by above-mentioned information of terminal distribution, send the response that the SM that finishes waits for RI;
What b12, RI acquisition SM sent is after generating the request message of RO from terminal, and RI is to authenticating from terminal, and RI is according to judging whether registered from terminal from the device identification (Slaver Device ID) of terminal, if execution b14 among RI; Otherwise carry out b13;
If not in the RI registration, as yet not in the RI registration, SM sends information and will register among RI from terminal to master terminal user prompt user RI notice SM b13, thereby is setting up the RI context from terminal from terminal from terminal;
If b14 registers at RI from terminal, then the key production module among RI and the SM communicates, and the key production module of request among the SM sends to RI with the professional encrypting and authenticating key (SEAKs) and/or the program encryption authenticate key (PEAKs) of Service ID and/or Program ID appointment;
Key production module among the SM is to the SEAKs and/or the PEAKs of RI transmission Service ID and/or Program ID appointment, and simultaneously, how SM must will use the service regeulations of SEAKs and PEAKs to send to RI together; Here need to prove that SM also can be in above-mentioned b11 sends to RI together with association key and service regeulations and above-mentioned information, if b12, b13 and b14 will omit like this;
B15, RI generate RO according to the information of above-mentioned acquisition, the generative process of RO mainly is that the packing of finishing key and key service regeulations is handled, the type of RO and the setting of life cycle etc., also need to comprise the device identification (Master Device ID) of master terminal in addition among the RO, this identification information is used to determine to have only the master terminal of this device identification appointment to operate control to this RO, controls as deletion etc.
Wherein RI at first uses REK that SEAKs and/or the PEAKs that SM sends carried out encryption, and then based on the RO of SEAKs after the encryption and/or PEAKs regeneration correspondence, last RI just can be handed down to the RO through above-mentioned processing from terminal; Can use RO in order to make from terminal, RI must also be handed down to REK from terminal simultaneously, and for the sake of security, issuing of REK also needs to use the PKI from terminal to encrypt; From terminal after receiving RO, just can use the terminal secret key deciphering to obtain REK from terminal when using RO at every turn, thereby utilize SEAKs and/or the PEAKs that comprise among the REK deciphering RO by the REK encryption, the SEAKs and/or the PEAKs that comprise among the further acquisition RO are in order to deciphering corresponding service and/or programme content.Process with the public key encryption REK of terminal is exactly the process of RO and terminal binding, because have only the private key of counterpart terminal to decipher.Just can inform behind the RI generation RO and obtain RO, so can send ROAP Trigger message to SM from terminal;
After b16, SM receive ROAP Trigger message, to send ROAP Trigger message from terminal, wherein contain the URL of RI, ROAP trigger message notifying generates from terminal RO, triggers from terminal and sends the request message that obtains RO to RI;
B17, receive the URL that provides according to ROAP Trigger message after the ROAP Trigger message, find RI and obtain RO to the RI request from terminal;
B18, RI carry out issuing of RO after receiving the request message of sending from terminal that obtains RO, and it issues process with reference to the DRM standard, no longer too much gives unnecessary details here;
B19, obtain RO from terminal after, need return an acknowledge message and give SM;
After b20, SM receive the affirmation message of sending from terminal, can select whether produce charging in this step; And send a message to master terminal, inform that the user successfully obtains the RO of master terminal for its application from terminal.
After obtaining be the RO of its application by master terminal from terminal, just can begin based on this RO receiving and deciphering and the permission of playing the master terminal subscription from the digital TV broadcasting service of terminal use and/or program, detailed process is:
Utilize the private key of self to decipher the encryption REK that RI issues from terminal; And
The key (SEAKs and/or PEAKs) that comprises among the RO that utilizes the REK after the deciphering that RI is issued is decrypted;
Utilize the SEAKs that obtains after the deciphering and/or PEAKs to decipher the ephemeral keys that use SEAKs that professional adaptive Dispatching Unit issues and/or PEAKs encrypt then; And
Corresponding digital TV broadcasting service and/or program that the use ephemeral keys of utilizing the ephemeral keys after deciphering that the adaptive Dispatching Unit of business is issued is encrypted carry out receiving and deciphering, to carry out follow-up playback process.
Wherein mentioned MTU can be for having the portable terminal of digital TV broadcasting service receiving ability among the present invention, as being a smart mobile phone that possesses the digital television broadcasting receiving ability, also can be other portable terminals that possess the digital television broadcasting receiving ability etc.; Mentioned among the present invention can be from terminal for receiving and common terminal that broadcast performance is good or car-mounted terminal etc., these can be that the focus place is (as the airport from terminal, ground such as station and market) common terminal equipment by digital TV broadcasting service operator layout, these terminal equipments are registered at SM usually, but do not subscribe to any digital TV broadcasting service and/or program, and these terminal equipments has the advantage that receptivity is good, result of broadcast is good usually; Characteristics that also may have from terminal equipment are to have only a communication interface that communicates with master terminal, and master terminal is controlled the business and/or the program of master terminal subscription being play from terminal of this public arena by this communication interface.Also can be other digital television broadcasting receiving terminals such as some mobile units from terminal equipment in addition, this Terminal Type has operation-interface and the interface of oneself, and master terminal just is responsible for obtaining it usually and is applied for RO from information of terminal equipment and for it.
The process of corresponding digital TV broadcasting service of subscribing to from the terminal plays master terminal and/or program can be subjected to the control of master terminal like this, as for having only saying of the communication interface that communicates with master terminal from terminal, just need master terminal to controlling from the process of terminal plays digital TV broadcasting service and/or program, as the operations such as opening and closing of control from terminal player, operations such as the adjustment of picture size, wherein when master terminal be for the first time some from terminal to apply after the RO success, master terminal can be downloaded corresponding control programs and installs from network side, install the back master terminal just can by communication interface control have only this communication interface carried out the broadcast of digital TV broadcasting service and/or program from terminal; Also can control voluntarily from the corresponding digital TV broadcasting service of terminal plays master terminal subscription and/or the process of program in addition, as for some mobile units etc., because these equipment have oneself operation-interface and control interface, the user can directly control digital TV broadcasting service and/or the program play on terminal at these.
After obtaining master terminal and be the RO of its provisional application from terminal, just had the authority of corresponding digital TV broadcasting service of receiving and deciphering and/programme content, also just can bring into use digital TV broadcasting service.Use digital TV broadcasting service will be subjected to the restriction of RO authority from terminal, and the RO that self obtains is subjected to the control of master terminal again, can controls the operational processes of the RO that obtains from terminal etc. as master terminal, also can control the deletion processing of the RO that obtains from terminal etc.
Accordingly, the method for the corresponding above-mentioned proposition of the present invention, also corresponding here proposition a kind of master terminal and corresponding from terminal.Please refer to Fig. 6, this figure is the main composition structured flowchart of the master terminal that proposes of the present invention, it mainly comprises first communication unit 10, right objects application unit 20, second communication unit 30 and third communication unit 40, and wherein the concrete effect of each component units is as follows:
Right objects application unit 20, be mainly used in according to above-mentioned first communication unit 10 accessed from terminal related information, be the digital TV broadcasting service subscribed to from the corresponding master terminal of terminal to apply and/or the RO of program at the digital TV broadcasting service network side;
Please refer to Fig. 7, this figure is the main composition structured flowchart from terminal that the present invention proposes, and it mainly comprises communication unit 100, rights object acquisition unit 200, receiving and deciphering unit 300 and control unit 400, and wherein the concrete effect of each component units is as follows:
Rights object acquisition unit 200, be mainly used in obtain that the digital TV broadcasting service network side issues be the digital TV broadcasting service subscribed to from the corresponding master terminal of terminal to apply and/or the RO of program by master terminal;
Receiving and deciphering unit 300 is mainly used in based on the accessed RO in above-mentioned rights object acquisition unit 200, and corresponding digital TV broadcasting service of being subscribed to by master terminal that network side is issued and/or program carry out receiving and deciphering to be handled;
The master terminal that proposes of the present invention and other relevant concrete technology realization details from terminal please refer to the associated description the said method of the present invention in addition, no longer give here too much to give unnecessary details.
Row are explained in detail the specific implementation process of technical solution of the present invention for two example two below.
First embodiment:
Suppose that digital TV broadcasting service operator has arranged that at hot zones some receptivities are good, the digital TV broadcasting service receiving terminal that result of broadcast is good, these terminals have a communication interface, but do not have other to be used for the user interface that the control figure visual broadcast service is play, its concrete Play Control can be sent control information by communication interface by master terminal and control and operate.
Suppose that a certain user just has the demand of using digital TV broadcasting service at these hot zones, but this moment, his smart mobile phone was in the not enough state of electric weight, can only receive tens minutes digital TV broadcasting service, so this user uses the smart mobile phone of oneself to receive on the above-mentioned a certain public number visual broadcast service receiver by Bluetooth wireless transmission technical battery, and startup request message editing interface, selection is read from terminal information, through the several seconds, the master terminal information reads and finishes, and added in the request message of editing, this user continues to import other related news of application RO then: set the RO type for using in due order, the business that permission is used from terminal is that the user likes best " sports news ", the life cycle of RO is set at 1 hour, because the user has been about to leave this place after 1 hour.Information editing back user well sends at once, after several seconds, user's intelligent terminal receives the message that SM sends, the user is from terminal ready (promptly having obtained corresponding RO from terminal) in prompting, can begin by from the relevant digital TV broadcasting service of terminal plays, this moment, operator took off in master terminal user's accounts information from the corresponding professional required expense of terminal plays.The user opens the control program in self smart mobile phone, reusing Bluetooth wireless transmission technical battery receives on the public number visual broadcast service receiving terminal, and open the player of public number visual broadcast service receiving terminal by this control program, select to play the channel of sports news, begin to watch sports news.Subsequent user can be closed the player of public number visual broadcast service receiving terminal as required at any time by control program.When the player of terminal cuts out, the user will cease to be in force automatically for the RO from terminal to apply.
Second embodiment:
Suppose to have in a certain user's the private car the digital visual broadcast service receiving equipment of a cover, and the user has used the smart mobile phone of oneself to subscribe to relevant digital TV broadcasting service, but the user wishes to use mobile unit to receive the digital TV broadcasting service that own smart mobile phone is subscribed to when driving, to save the battery electric quantity of smart mobile phone, can not wish again to subscribe to digital TV broadcasting service again for mobile unit.This moment, the user opened the mobile unit of oneself, and couple together by the smart mobile phone and the mobile unit of a data lines with oneself, smart mobile phone is opened RO request message editing interface, the user selects to read from terminal information, through after the several seconds, the smart mobile phone information reads and finishes, the user then imports other required information of request message, as selecting to broadcast on a time period " news flash ", and use between being made as the RO type on time, the life cycle of RO is chosen as week age, clicks after the request message editor finishes to send; After several seconds, user's smart mobile phone receives message and learns that mobile unit is ready, the business that can bring into use the user to subscribe to.The time user of being on duty can be directly at the enterprising line operate of mobile unit, and the channel of selecting to play news flash receives the news information of playing the work hours.And the user can close mobile unit conveniently after arrival company, and the RO that be kept on the mobile unit this moment did not lose efficacy, and the user After Hours can continue to open mobile unit and continue to receive the news flash of playing the quitting time.
In sum, technical solution of the present invention can be implemented in one do not subscribe to digital TV broadcasting service and/or program play digital TV broadcasting service and/or the program that another master terminal has been subscribed to from terminal, can realize simultaneously that master terminal plays the control of digital TV broadcasting service and/or program to slave unit, thereby well expand the flexibility that the user watches the digital TV broadcasting service that self subscribes to.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (20)
1, a kind of receiving and deciphering method of digital TV broadcasting service is characterized in that, comprises step:
Master terminal is from the digital TV broadcasting service of the corresponding master terminal subscription of terminal to apply and/or the right objects of program at the digital TV broadcasting service network side;
Based on the right objects of master terminal for self applying for, corresponding digital TV broadcasting service and/or the program subscribed to by master terminal that network side is issued carry out receiving and deciphering from terminal.
2, the method for claim 1 is characterized in that, described master terminal specifically comprises for the process from the terminal to apply right objects:
Master terminal comprises the terminal iidentification from terminal be retrieved as the first required necessary information of the described right objects of application from terminal in described first necessary information;
First necessary information that master terminal will get access to and oneself comprise the master terminal permission from the sign of the digital TV broadcasting service of terminal plays and/or the sign of program as being carried on the subscription management unit that sends to network side the right objects request message from the second required necessary information of the described right objects of terminal to apply in described second necessary information;
The right objects request message that described subscription management unit is sent according to master terminal allows master terminal from the program encryption authenticate key of the sign correspondence of the sign corresponding service encrypting and authenticating key of the digital TV broadcasting service of terminal plays and service regeulations and/or program and the right objects issue center that service regeulations send to network side; And
With first necessary information with do not comprise master terminal and allow to send to the right objects issue center simultaneously from second necessary information of the sign of the sign of the digital TV broadcasting service of terminal plays and/or program;
Professional encrypting and authenticating key and service regeulations and/or program encryption authenticate key and the service regeulations and first necessary information thereof that send according to the subscription management unit described right objects issue center and do not comprise master terminal and allow to generate corresponding right objects from second necessary information of the sign of the sign of the digital TV broadcasting service of terminal plays and/or program; And
According to the terminal iidentification that comprises in first necessary information right objects that generates is handed down to from terminal from terminal.
3, method as claimed in claim 2 is characterized in that, described master terminal specifically comprises in the process of obtaining first necessary information from terminal:
Master terminal is to being the first required necessary information of the described right objects of application from terminal request;
Request from the terminal response master terminal is sent feeds back to master terminal with described first necessary information.
4, method as claimed in claim 3 is characterized in that, described master terminal and from carrying out information interaction based on short range wireless transmission mode or wire transmission mode between the terminal.
5, method as claimed in claim 2 is characterized in that, all master terminals of storage be from terminal to apply right objects when success in the described subscription management unit, and corresponding master terminal identifies and from the mapping relations between the terminal iidentification;
The terminal iidentification that also comprises master terminal in described second necessary information; Described master terminal specifically also comprises for the process from the terminal to apply right objects:
Described subscription management unit is according to all master terminals signs of the terminal iidentification of master terminal and self storage with from the mapping relations between the terminal iidentification, judge master terminal for other from terminal to apply during effective right objects, to master terminal feedback request refuse information; And
Prompting master terminal user makes to other and asks after effective right objects inefficacy of terminal to apply again.
6, method as claimed in claim 2 is characterized in that, also comprises master terminal user's accounts information in described second necessary information; Described master terminal specifically also comprises for the process from the terminal to apply right objects:
Described subscription management unit allows from sign and/or the sign of program and master terminal user's the accounts information thereof of the digital TV broadcasting service of terminal plays according to master terminal, when judging master terminal and allow not subscribe in master terminal user's accounts information from the digital TV broadcasting service of terminal plays and/or program, prompting master terminal user subscribes to processing to allowing from the digital TV broadcasting service and/or the program of terminal plays.
7, method as claimed in claim 2 is characterized in that, described right objects issue center generates and also to comprise the step of using the right objects encryption key that professional encrypting and authenticating key and/or program encryption authenticate key are encrypted before the right objects.
8, method as claimed in claim 7 is characterized in that, described master terminal specifically also comprises for the process from the terminal to apply right objects:
The right objects issue center is used and from the PKI of terminal the right objects encryption key is encrypted; And
Right objects encryption key after encrypting is handed down to from terminal.
9, method as claimed in claim 2 is characterized in that, described master terminal specifically also comprises for the process from the terminal to apply right objects:
After receiving the right objects that the right objects issue center issues from terminal, send acknowledge message to the subscription management unit;
When the subscription management unit receives from the affirmation message that terminal is sent, with the terminal iidentification of described master terminal with from setting up mapping relations and storage between the terminal iidentification of terminal; And
Determine whether digital TV broadcasting service and/or the program subscribed to from the terminal plays master terminal are chargeed.
10, method as claimed in claim 9 is characterized in that, described master terminal specifically also comprises for the process from the terminal to apply right objects:
After the subscription management unit received the affirmation message of sending from terminal, the notice master terminal had successfully obtained right objects from terminal.
11, method as claimed in claim 2 is characterized in that, also is included as from the type of the right objects of terminal to apply in described second necessary information and is the life cycle from the right objects of terminal to apply;
Described right objects issue center generates the right objects with corresponding types and life cycle according to the type and the life cycle of the right objects that comprises in second necessary information.
12, method as claimed in claim 8 is characterized in that, describedly from terminal the process that digital TV broadcasting service and/or program carry out receiving and deciphering is specifically comprised:
From terminal use self private key the right objects encryption key of encrypting is decrypted; And
Use the right objects encryption key after the deciphering that the professional encrypting and authenticating key and/or the program encryption authenticate key of the encryption that comprises in the right objects is decrypted;
Use professional encrypting and authenticating key and/or program encryption authenticate key after deciphering that the encryption ephemeral keys that the professional adaptive Dispatching Unit of network side issues is decrypted from terminal; And
Use the ephemeral keys after deciphering that enciphered digital visual broadcast service and/or the program that the adaptive Dispatching Unit of business issues carried out receiving and deciphering.
13, the method for claim 1 is characterized in that, the corresponding digital TV broadcasting service of subscribing to from the terminal plays master terminal and/or the process of program are subjected to the control of master terminal; Or
By controlling voluntarily from terminal.
14, the method for claim 1 is characterized in that, also comprises step:
Master terminal is to controlling and deletion control for upgrading from the right objects of terminal to apply.
As the described method of 1～14 arbitrary claim, it is characterized in that 15, described master terminal is the portable terminal with digital TV broadcasting service receiving ability;
Described is to receive and good common terminal or the car-mounted terminal of broadcast performance from terminal.
16, a kind of master terminal is characterized in that, comprising:
First communication unit is used for and communicates from terminal, obtains the relevant information from terminal;
The right objects application unit, be used for according to described first communication unit obtain from terminal related information, be the digital TV broadcasting service subscribed to from the corresponding master terminal of terminal to apply and/or the right objects of program at the digital TV broadcasting service network side.
17, terminal as claimed in claim 16, it is characterized in that, also comprise the second communication unit, be used for and communicate, to playing corresponding digital TV broadcasting service that master terminal subscribe to based on described right objects application unit for the right objects of self application from terminal and/or the process of program is controlled from terminal.
18, terminal as claimed in claim 16 is characterized in that, also comprises third communication unit, be used for and communicate from terminal, to described right objects application unit for upgrade control and deletion control from the right objects of terminal to apply.
19, a kind of from terminal, it is characterized in that, comprising:
Communication unit is used for communicating with master terminal, and the relevant information of master terminal requirement is provided to master terminal;
The rights object acquisition unit is used to obtain that the digital TV broadcasting service network side issues is the digital TV broadcasting service subscribed to from the corresponding master terminal of terminal to apply and/or the right objects of program by master terminal;
The receiving and deciphering unit is used for the right objects that gets access to based on described rights object acquisition unit, and corresponding digital TV broadcasting service and/or the program subscribed to by master terminal that network side is issued carry out receiving and deciphering.
20, terminal as claimed in claim 19, it is characterized in that, also comprise control unit, be used for the right objects that gets access to based on described rights object acquisition unit is play corresponding digital TV broadcasting service that master terminal subscribes to and/or the process of program is controlled.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100762674A CN101060613A (en) | 2006-04-21 | 2006-04-21 | Digital TV broadcasting service receiving and deciphering method, master terminal and its slave terminal |
| PCT/CN2006/003520 WO2007121632A1 (en) | 2006-04-21 | 2006-12-21 | Method for receiving digital television broadcasting service, master terminal and slave terminal thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100762674A CN101060613A (en) | 2006-04-21 | 2006-04-21 | Digital TV broadcasting service receiving and deciphering method, master terminal and its slave terminal |
Publications (1)
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|---|---|
| CN101060613A true CN101060613A (en) | 2007-10-24 |
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| CNA2006100762674A Pending CN101060613A (en) | 2006-04-21 | 2006-04-21 | Digital TV broadcasting service receiving and deciphering method, master terminal and its slave terminal |
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| Country | Link |
|---|---|
| CN (1) | CN101060613A (en) |
| WO (1) | WO2007121632A1 (en) |
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| CN102404407A (en) * | 2011-12-07 | 2012-04-04 | 成都英黎科技有限公司 | Data transmission method and system based on cloud platform |
| CN102821304A (en) * | 2012-04-17 | 2012-12-12 | 国家广播电影电视总局广播科学研究院 | Data push method and device for digital television system and digital television system |
| CN102821304B (en) * | 2012-04-17 | 2015-07-01 | 国家广播电影电视总局广播科学研究院 | Data push method and device for digital television system and digital television system |
| CN111245854A (en) * | 2014-11-27 | 2020-06-05 | 华为终端有限公司 | Media transmission method, media control method and device |
| CN111245854B (en) * | 2014-11-27 | 2022-11-22 | 华为终端有限公司 | Media transmission method, media control method and device |
| CN106844259A (en) * | 2016-12-07 | 2017-06-13 | 硅谷数模半导体（北京）有限公司 | USBType C interface communication between devices establishment of connection method and apparatus |
| CN112868002A (en) * | 2020-02-25 | 2021-05-28 | 海信视像科技股份有限公司 | Information linkage system, terminal device management server, subscriber management server |
| CN115277176A (en) * | 2022-07-25 | 2022-11-01 | 中国电信股份有限公司 | Communication method, communication device, storage medium, and electronic apparatus |
| CN115277176B (en) * | 2022-07-25 | 2024-04-05 | 中国电信股份有限公司 | Communication method, communication device, storage medium, and electronic apparatus |
Also Published As
| Publication number | Publication date |
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| WO2007121632A1 (en) | 2007-11-01 |
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Application publication date: 20071024 |