CN103561286A - Method, device and system for medium distribution - Google Patents
Method, device and system for medium distribution Download PDFInfo
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- CN103561286A CN103561286A CN201310542802.0A CN201310542802A CN103561286A CN 103561286 A CN103561286 A CN 103561286A CN 201310542802 A CN201310542802 A CN 201310542802A CN 103561286 A CN103561286 A CN 103561286A
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Abstract
The invention provides a method, device and system for medium distribution. The method includes the steps of receiving digital media, user information and order information which are sent by a media management system, wherein the user information comprises user names and user passwords; receiving verification requests sent by a terminal, wherein the verification requests comprise user names and user passwords; judging whether the digital media are in a usable state or not according to the order information if the user names and the user passwords contained in the user information are identical with the user names and the user passwords contained in the verification requests; decoding the digital media to obtain decoded digital media if the digital media are in the usable state; sending the decoded digital media to the terminal to enable the terminal to broadcast the decoded digital media. Therefore, the problem that in the prior art, a built-in operating system of a television is hard compatible with emerging formats of the digital media is solved, and user experience is improved on the basis of effectively protecting the digital copyright.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of media distribution method, device and media delivery service.
Background technology
In prior art, when TV carries out program request, order and plays Digital Media, in TV built-in operating system by user interface to user provide can program request Digital Media, when user selects to want after the Digital Media of program request, operating system and media management system built-in in TV carry out alternately, the Digital Media that program request subscribed users is selected, media management system sends to operating system built-in in TV by the Digital Media of order, so that built-in operating system is decoded to Digital Media and plays in TV.
Yet in prior art, built-in operating system should realize program request, order and the decoding function of Digital Media in TV, complete again the broadcasting of Digital Media and providing and management function of user interface.Because the function that operating system built-in in TV need to realize is too many, cause operating system built-in in TV to be difficult to upgrade, thereby make built-in operating system be difficult to compatible emerging Digital Media form, affect user's experience.
Summary of the invention
The invention provides a kind of media distribution method, device and media delivery service, for solving the built-in operating system of prior art TV, be difficult to compatible emerging Digital Media form, affect the problem that user experiences.
First aspect of the present invention is to provide a kind of media distribution method, comprising:
Digital Media, user profile and ordering information that the user that receiving media management system sends orders, described user profile comprises user name and user cipher;
The checking request that receiving terminal sends, described checking request comprises user name and user cipher;
If the user name that described user profile comprises is consistent with user name and user cipher that described checking request comprises with user cipher, according to described ordering information, judge that whether described Digital Media is in up state;
If described Digital Media, in up state, decodes to described Digital Media, obtain decoded Digital Media;
Decoded Digital Media is sent to described terminal, so that decoded Digital Media described in described terminal plays.
Another aspect of the present invention provides a kind of distribution of media device, comprising:
Receiver module, Digital Media, user profile and ordering information that the user who sends for receiving media management system orders, described user profile comprises user name and user cipher;
Described receiver module, the checking request also sending for receiving terminal, described checking request comprises user name and user cipher;
Judge module, when the user name comprising with described checking request with user cipher for the user name comprising in described user profile and user cipher are consistent, judges that according to described ordering information whether described Digital Media is in up state;
Decoder module, for, described Digital Media being decoded during in up state in described Digital Media, obtains decoded Digital Media;
Sending module, for decoded Digital Media is sent to described terminal, so that decoded Digital Media described in described terminal plays.
Another aspect of the present invention provides a kind of media delivery service, comprising: above-mentioned distribution of media device, media management system and terminal.
In the present invention, the Digital Media that the user who sends by receiving media management system orders, user profile and ordering information, the checking request that receiving terminal sends, the user name comprising in user profile is consistent with user name and user cipher that user cipher comprises with checking request, and determine that according to ordering information Digital Media is when the up state, Digital Media is decoded, decoded Digital Media is sent to terminal, so that terminal can be play-overed decoded Digital Media, thereby solved the problem that the built-in operating system of TV in prior art is difficult to compatible emerging Digital Media form, on the basis of effectively protecting digital publishing rights, improved user's experience.
Accompanying drawing explanation
Fig. 1 is the flow chart of an embodiment of media distribution method provided by the invention;
Fig. 2 is the structural representation of an embodiment of distribution of media device provided by the invention;
Fig. 3 is the structural representation of an embodiment of media delivery service provided by the invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the flow chart of an embodiment of media distribution method provided by the invention, as shown in Figure 1, comprising:
101, Digital Media, user profile and ordering information that the user that receiving media management system sends orders, user profile comprises user name and user cipher.
Wherein, media distribution method provided by the invention can be carried out by distribution of media device, and the concrete manifestation form of distribution of media device can be USB (Universal Serial BUS, the USB) equipment after expansion.USB device after expansion can be decoded to Digital Media, and decoded Digital Media is sent to terminal, can also verify terminal.Terminal is specifically as follows the terminal that TV or other can playing digital mediums.Terminal can configure USB interface, the decoded Digital Media sending for receiving USB device.The form of Digital Media is specifically as follows picture, music or video etc.Optionally, the decoded Digital Media that terminal receives from USB device can be: the audio stream of the video flowing of rgb format, the video flowing of yuv format, PCM form, the picture of BMP form etc.Media management system can be arranged in the equipment such as PC or server.Optionally, distribution of media device can be connected by USB interface with media management system.
Before Digital Media, user profile and ordering information that the user that USB device receiving media management system sends orders, media management system can carry out alternately with terminals such as TVs, for example, operating system built-in in TV provides the Digital Media that can select to user by user interface, and after the Digital Media that user selects to need, operating system built-in in TV can be carried out alternately with media management system, the Digital Media that subscribed users is selected.
In addition, in USB device, can also preserve user interface, when user need to select Digital Media, operating system built-in in TV can send request to USB device, the Digital Media list that USB device can be selected sends to TV, so that user selects the Digital Media that will play.After the Digital Media that user selects to play, media management system can send to USB device by Digital Media, user profile and ordering information wireless or that wired mode is selected user.
Optionally, media management system can adopt digest algorithm, such as MD5 etc., according to the user name in user profile and user cipher generating user information summary, and the PKI that the certificate that adopts distribution of media device comprises is encrypted Profile Summary, Profile Summary after being encrypted, i.e. user ID, sends to distribution of media device with the form of user ID by user name and user cipher.
Further, in order to guarantee that the Digital Media in distribution of media device is only conducted interviews by the media management system of grant a certificate, before step 101, can also comprise:
The checking request that receiving media management system sends; Default certificate and hardware identifier are sent to media management system, so that media management system judges default certificate is whether effective;
Corresponding, step 101 is specifically as follows:
If default certificate is effective, Digital Media, user profile and ordering information that the user that receiving media management system sends orders;
Or, if default certificate is invalid, Digital Media, user profile and ordering information that the user that receiving media management system sends orders, and media management system is according to the certificate of hardware identifier generation.
Wherein, in the first, implement under scene, media management system judges that the whether effective mode of default certificate is specifically as follows: according to hardware identifier, Generate Certificate, and whether the certificate that judgement generates according to hardware identifier is identical with default certificate; If identical, default certificate is effective; If not identical, default certificate is invalid.
At the second, implement under scene, media management system judges that the whether effective mode of default certificate is specifically as follows: media management system is resolved the program information of the grant a certificate comprising in default certificate, according to program information, judge whether default certificate is signed and issued by oneself, if signed and issued by oneself, default certificate is effective; If not default certificate is invalid.
In the situation that default certificate is invalid, Digital Media, user profile and ordering information that the user who sends when distribution of media device receiving media management system orders, and media management system is according to before the certificate of hardware identifier generation, distribution of media device can also send request to media management system, so that media management system is deleted the Digital Media preserving in distribution of media device according to the request of distribution of media device.
102, the checking request that receiving terminal sends, checking request comprises user name and user cipher.
If the user name that 103 user profile comprise is consistent with user name and user cipher that user cipher comprises with checking request, according to ordering information, judge that whether Digital Media is in up state.
When the form of media management system with user ID sends to user name and user cipher after distribution of media device, distribution of media device judges that user name and the whether consistent mode of user cipher that user name that user profile comprises comprises with checking request with user cipher are specifically as follows: user name and user cipher that distribution of media device comprises according to checking request, adopt digest algorithm, generate new Profile Summary, be called Profile Summary 1; And adopt private key to be decrypted to user ID, and obtain the Profile Summary that media management system sends, be called Profile Summary 2; Judge that whether Profile Summary 1 is identical with Profile Summary 2, if identical, illustrate that the user name that user profile comprises is consistent with user name and user cipher that user cipher comprises with checking request; If not identical, illustrate that user name and user cipher that user name that user profile comprises and user cipher and checking request comprise are inconsistent.In the user name that the user name comprising in user profile and user cipher and checking request comprise and the inconsistent situation of user cipher, distribution of media playing device can be refused absolute number media and decodes and decoded Digital Media is sent to terminal.
Further, ordering information can comprise can broadcasting time, can play number of days and can the number of terminals of playing digital medium at least one parameter;
According to ordering information judge Digital Media whether the process in up state be specifically as follows:
Whether the value that judges all parameters that ordering information comprises is not all 0; If the value of all parameters that ordering information comprises is not all 0, determine that Digital Media is in up state; If the value of any one parameter is 0 in all parameters that ordering information comprises, determine that Digital Media is in non-working condition.
Wherein, media management system can adopt digest algorithm, according to ordering information, generates purchase order information summary, and uses the public key encryption of distribution of media playing device, and the purchase order information summary after being encrypted, orders sign.To order sign and ordering information and send to distribution of media device.
Distribution of media device receives after the order sign and ordering information that media management system sends, and can first check that whether order sign correct, and then judge that according to ordering information whether Digital Media is in up state.Sign is ordered in the inspection of distribution of media device, and whether correct mode can be: use the private key of media management system to be decrypted ordering sign, obtain purchase order information summary, be called purchase order information summary 1.And use purchase order information to generate and order summary, be called purchase order information summary 2.Contrast purchase order information summary 1 and ordering information summary 2, if identical, illustrate that purchase order information is correct, otherwise, think purchase order information mistake.
104,Ruo Digital Media decodes in up state ，Ze Dui Digital Media, obtains decoded Digital Media.
Further, for the Digital Media that guarantees to preserve in distribution of media device is difficult to be play by other-end after being replicated, further effectively protect the digital publishing rights of Digital Media, the Digital Media that user orders can be for adopting the Digital Media after encryption keys, and the default certificate in effective status or the certificate generating according to described hardware identifier comprise PKI;
Before step 104, can also comprise:
Encryption key and private key corresponding to PKI that receiving media management system sends, encryption key is for adopting the encryption key after public key encryption;
Corresponding, step 104 specifically can comprise:
Adopt private key to be decrypted the encryption key after encrypting, obtain encryption key;
Adopt encryption key to be decrypted Digital Media, the Digital Media after being deciphered;
Digital Media after deciphering is decoded, obtain decoded Digital Media.
105, decoded Digital Media is sent to terminal, so that the decoded Digital Media of terminal plays.
Wherein, if distribution of media device is before sending to terminal by decoded Digital Media, also receive the display parameters that terminal sends, display parameters comprise: at least one parameter in screen size, color depth and audio format that terminal is supported, distribution of media device can carry out format conversion to decoded Digital Media according to display parameters, so that Digital Media and display parameters after conversion match.
Corresponding, distribution of media device specifically can send to terminal by the Digital Media after conversion.
In addition, if preserve a plurality of Digital Medias in distribution of media device, in step 103, distribution of media device judges that according to ordering information Digital Media is whether during in up state, distribution of media device need to send to terminal by the Digital Media list that comprises above-mentioned a plurality of Digital Medias, so that terminal use selects the Digital Media that will play, then whether the distribution of media device Digital Media that corresponding ordering information judgement will be play according to the Digital Media that will play is in up state.
In the present embodiment, the Digital Media that the user who sends by receiving media management system orders, user profile and ordering information, the checking request that receiving terminal sends, the user name comprising in user profile is consistent with user name and user cipher that user cipher comprises with checking request, and determine that according to ordering information Digital Media is when the up state, Digital Media is decoded, decoded Digital Media is sent to terminal, so that terminal can be play-overed decoded Digital Media, thereby solved the problem that the built-in operating system of TV in prior art is difficult to compatible emerging Digital Media form, on the basis of effectively protecting digital publishing rights, improved user's experience.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, when carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Fig. 2 is the structural representation of an embodiment of distribution of media device provided by the invention, as shown in Figure 2, comprising:
Sending module 24, for decoded Digital Media is sent to terminal, so that the decoded Digital Media of terminal plays.
Further, in order to guarantee that the Digital Media in distribution of media device is only conducted interviews by the media management system of grant a certificate, receiver module 21 also for, before Digital Media, user profile and ordering information that the user who sends in receiver module 21 receiving media management systems orders, the checking request that receiving media management system sends;
Sending module 24 also for, default certificate and hardware identifier are sent to media management system, so that media management system judges default certificate is whether effective;
In Digital Media, user profile and ordering information that the user that receiver module 21 receiving media management systems send orders, receiver module 21 specifically for,
If default certificate is effective, Digital Media, user profile and ordering information that the user that receiving media management system sends orders;
Or, if default certificate is invalid, Digital Media, user profile and ordering information that the user that receiving media management system sends orders, and media management system is according to the certificate of hardware identifier generation.
Further, ordering information comprise can broadcasting time, can play number of days and can the number of terminals of playing digital medium at least one parameter;
Whether the value that judges all parameters that ordering information comprises is not all 0;
If the value of all parameters that ordering information comprises is not all 0, determine that Digital Media is in up state;
If the value of any one parameter is 0 in all parameters that ordering information comprises, determine that Digital Media is in non-working condition.
Again further, for the Digital Media that guarantees to preserve in distribution of media device is difficult to be play by other-end after being replicated, further effectively protect the digital publishing rights of Digital Media, the Digital Media that user orders can be for adopting the Digital Media after encryption keys, and the default certificate in effective status or the certificate generating according to hardware identifier comprise PKI;
Adopt encryption key to be decrypted Digital Media, the Digital Media after being deciphered;
Digital Media after deciphering is decoded, obtain decoded Digital Media.
Again further, in order to guarantee that the display parameters of Digital Media and terminal match, distribution of media device can also comprise: modular converter;
Before sending module 24 sends to terminal by decoded Digital Media, the display parameters that receiver module 21 also sends for, receiving terminal, display parameters comprise: at least one parameter in screen size, color depth and audio format that terminal is supported;
Modular converter, for according to display parameters, decoded Digital Media being carried out to format conversion, so that Digital Media and display parameters after conversion match.
In the present embodiment, the Digital Media that the user who sends by receiving media management system orders, user profile and ordering information, the checking request that receiving terminal sends, the user name comprising in user profile is consistent with user name and user cipher that user cipher comprises with checking request, and determine that according to ordering information Digital Media is when the up state, Digital Media is decoded, decoded Digital Media is sent to terminal, so that terminal can be play-overed decoded Digital Media, thereby solved the problem that the built-in operating system of TV in prior art is difficult to compatible emerging Digital Media form, on the basis of effectively protecting digital publishing rights, improved user's experience.
Fig. 3 is the structural representation of an embodiment of media delivery service provided by the invention, as shown in Figure 3, comprising: distribution of media device 31, media management system 32 and terminal 33.
Digital Media, user profile and ordering information that the user that distribution of media device 31 receiving media management systems 32 send orders, user profile comprises user name and user cipher;
The checking request that distribution of media device 31 receiving terminals 33 send, checking request comprises user name and user cipher;
If the user name that user profile comprises is consistent with user name and user cipher that user cipher comprises with checking request, distribution of media device 31 judges that according to ordering information whether Digital Media is in up state;
If Digital Media is in up state, distribution of media device 31Dui Digital Media decodes, and obtains decoded Digital Media;
Distribution of media device 31 sends to terminal 33 by decoded Digital Media, so that the Digital Media after terminal 33 broadcast decoders.
Further, in order to guarantee that the Digital Media in distribution of media device 31 is only conducted interviews by the media management system 32 of grant a certificate, before Digital Media, user profile and ordering information that the user that distribution of media device 31 sends in receiving media management system 32 orders, the checking request that receiving media management system 32 sends;
Distribution of media device 31 sends to media management system 32 by default certificate and hardware identifier, so that whether media management system 32 judges default certificate effective;
If default certificate is effective, Digital Media, user profile and ordering information that the user that distribution of media device 31 sends specifically for, receiving media management system 32 orders;
Or, if default certificate is invalid, Digital Media, user profile and ordering information that the user that distribution of media device 31 receiving media management systems 32 send orders, and media management system 32 is according to the certificate of hardware identifier generation.
Further, in order to guarantee that the Digital Media preserving in distribution of media device 31 is difficult to be play by other-end after being replicated, further effectively protect the digital publishing rights of Digital Media, the Digital Media that user orders can be for adopting the Digital Media after encryption keys, and the default certificate in effective status or the certificate generating according to hardware identifier comprise PKI;
Distribution of media device 31 also for, in Digital Media, in up state Shi，Dui Digital Media, decode, before obtaining decoded Digital Media, encryption key and private key corresponding to PKI that receiving media management system 32 sends, encryption key is for adopting the encryption key after public key encryption;
Adopt private key to be decrypted the encryption key after encrypting, obtain encryption key;
Adopt encryption key to be decrypted Digital Media, the Digital Media after being deciphered;
Digital Media after deciphering is decoded, obtain decoded Digital Media.
Again further, ordering information comprise can broadcasting time, can play number of days and can the number of terminals of playing digital medium at least one parameter;
Distribution of media device 31 judges that according to ordering information Digital Media is whether in up state, distribution of media device 31 specifically for,
Whether the value that judges all parameters that ordering information comprises is not all 0;
If the value of all parameters that ordering information comprises is not all 0, determine that Digital Media is in up state;
If the value of any one parameter is 0 in all parameters that ordering information comprises, determine that Digital Media is in non-working condition.
Again further, in order to guarantee that the display parameters of Digital Media and terminal 33 match, distribution of media device 31 can also be for, before decoded Digital Media is sent to terminal 33, the display parameters that receiving terminal 33 sends, display parameters comprise: at least one parameter in screen size, color depth and audio format that terminal is supported;
According to display parameters, decoded Digital Media is carried out to format conversion, so that Digital Media and display parameters after conversion match.
In the present embodiment, the Digital Media that the user who sends by distribution of media device receiving media management system orders, user profile and ordering information, the checking request that distribution of media device receiving terminal sends, the user name comprising in user profile is consistent with user name and user cipher that user cipher comprises with checking request, and determine that according to ordering information Digital Media is when the up state, Digital Media is decoded, decoded Digital Media is sent to terminal, so that terminal can be play-overed decoded Digital Media, thereby solved the problem that the built-in operating system of TV in prior art is difficult to compatible emerging Digital Media form, on the basis of effectively protecting digital publishing rights, improved user's experience.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (11)
1. a media distribution method, is characterized in that, comprising:
Digital Media, user profile and ordering information that the user that receiving media management system sends orders, described user profile comprises user name and user cipher;
The checking request that receiving terminal sends, described checking request comprises user name and user cipher;
If the user name that described user profile comprises is consistent with user name and user cipher that described checking request comprises with user cipher, according to described ordering information, judge that whether described Digital Media is in up state;
If described Digital Media, in up state, decodes to described Digital Media, obtain decoded Digital Media;
Decoded Digital Media is sent to described terminal, so that decoded Digital Media described in described terminal plays.
2. method according to claim 1, is characterized in that, before Digital Media, user profile and ordering information that the user that described receiving media management system sends orders, also comprises:
Receive the checking request that described media management system sends;
Default certificate and hardware identifier are sent to described media management system, so that described media management system judges that whether described default certificate is effective;
Digital Media, user profile and ordering information that the user that described receiving media management system sends orders, comprising:
If described default certificate is effective, receive Digital Media, user profile and the ordering information of user's order of described media management system transmission;
Or, if described default certificate is invalid, receive Digital Media, user profile and the ordering information of user's order of described media management system transmission, and described media management system is according to the certificate of described hardware identifier generation.
3. method according to claim 2, is characterized in that, the Digital Media that described user orders is for adopting the Digital Media after encryption keys, and described default certificate in effective status or the certificate generating according to described hardware identifier comprise PKI;
If described Digital Media, in up state, decodes to described Digital Media, before obtaining decoded Digital Media, also comprise:
Receive encryption key and private key corresponding to described PKI that described media management system sends, described encryption key is for adopting the encryption key after described public key encryption;
Described described Digital Media is decoded, obtains decoded Digital Media, comprising:
Encryption key after adopting described private key to described encryption is decrypted, and obtains described encryption key;
Adopt described encryption key to be decrypted described Digital Media, the Digital Media after being deciphered;
Digital Media after described deciphering is decoded, obtain decoded Digital Media.
4. method according to claim 1, is characterized in that, described ordering information comprises can broadcasting time, can play number of days and can play at least one parameter in the number of terminals of described Digital Media;
Describedly according to described ordering information, judge that described Digital Media, whether in up state, comprising:
Whether the value that judges all parameters that described ordering information comprises is not all 0;
If the value of all parameters that described ordering information comprises is not all 0, determine that described Digital Media is in up state;
If the value of any one parameter is 0 in all parameters that described ordering information comprises, determine that described Digital Media is in non-working condition.
5. according to the method described in claim 1-4 any one, it is characterized in that, described decoded Digital Media is sent to described terminal before, also comprise:
Receive the display parameters that described terminal sends, described display parameters comprise: at least one parameter in screen size, color depth and audio format that described terminal is supported;
According to described display parameters, described decoded Digital Media is carried out to format conversion, so that Digital Media and described display parameters after conversion match.
6. a distribution of media device, is characterized in that, comprising:
Receiver module, Digital Media, user profile and ordering information that the user who sends for receiving media management system orders, described user profile comprises user name and user cipher;
Described receiver module, the checking request also sending for receiving terminal, described checking request comprises user name and user cipher;
Judge module, when the user name comprising with described checking request with user cipher for the user name comprising in described user profile and user cipher are consistent, judges that according to described ordering information whether described Digital Media is in up state;
Decoder module, for, described Digital Media being decoded during in up state in described Digital Media, obtains decoded Digital Media;
Sending module, for decoded Digital Media is sent to described terminal, so that decoded Digital Media described in described terminal plays.
7. device according to claim 6, it is characterized in that, described receiver module also for, before Digital Media, user profile and ordering information that the user who sends in described receiver module receiving media management system orders, receive the checking request that described media management system sends;
Described sending module also for, default certificate and hardware identifier are sent to described media management system, so that described media management system judges that whether described default certificate effective;
In Digital Media, user profile and ordering information that the user that described receiver module receiving media management system sends orders, described receiver module specifically for,
If described default certificate is effective, receive Digital Media, user profile and the ordering information of user's order of described media management system transmission;
Or, if described default certificate is invalid, receive Digital Media, user profile and the ordering information of user's order of described media management system transmission, and described media management system is according to the certificate of described hardware identifier generation.
8. device according to claim 7, is characterized in that, the Digital Media that described user orders is for adopting the Digital Media after encryption keys, and described default certificate in effective status or the certificate generating according to described hardware identifier comprise PKI;
Described receiver module also for, described decoder module is in described Digital Media during in up state, described Digital Media is decoded, before obtaining decoded Digital Media, receive encryption key and private key corresponding to described PKI that described media management system sends, described encryption key is for adopting the encryption key after described public key encryption;
Described decoder module specifically for, the encryption key after adopting described private key to described encryption is decrypted, and obtains described encryption key;
Adopt described encryption key to be decrypted described Digital Media, the Digital Media after being deciphered;
Digital Media after described deciphering is decoded, obtain decoded Digital Media.
9. device according to claim 6, is characterized in that, described ordering information comprises can broadcasting time, can play number of days and can play at least one parameter in the number of terminals of described Digital Media;
Described judge module judges that according to described ordering information described Digital Media is whether in up state, described judge module specifically for,
Whether the value that judges all parameters that described ordering information comprises is not all 0;
If the value of all parameters that described ordering information comprises is not all 0, determine that described Digital Media is in up state;
If the value of any one parameter is 0 in all parameters that described ordering information comprises, determine that described Digital Media is in non-working condition.
10. according to the device described in claim 6-9 any one, it is characterized in that, also comprise: modular converter;
Before described sending module sends to described terminal by decoded Digital Media, described receiver module also for, receive the display parameters that described terminal sends, described display parameters comprise: at least one parameter in screen size, color depth and audio format that described terminal is supported;
Described modular converter, for according to described display parameters, described decoded Digital Media being carried out to format conversion, so that Digital Media and described display parameters after conversion match.
11. 1 kinds of media delivery services, is characterized in that, comprising: distribution of media device, media management system and terminal as described in claim 6-10 any one.
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| CN1558676A (en) * | 2004-01-19 | 2004-12-29 | 大唐电信科技股份有限公司光通信分公 | Multimedia information demanding system and demanding method |
| CN101150405A (en) * | 2006-09-22 | 2008-03-26 | 华为技术有限公司 | Method and system for multicast and broadcast service authentication and authorization |
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| CN103024523A (en) * | 2012-12-07 | 2013-04-03 | 康佳集团股份有限公司 | Method and system for sharing television programs based on set top box (STB) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105847890A (en) * | 2016-03-30 | 2016-08-10 | 深圳市宽宏科技有限公司 | OTT digital copyright-based management system |
| CN108540842A (en) * | 2018-04-18 | 2018-09-14 | 广州华多网络科技有限公司 | Audio-frequence player device, audio frequency playing method, equipment and storage medium |
| CN108540842B (en) * | 2018-04-18 | 2021-02-12 | 广州华多网络科技有限公司 | Audio playing device, audio playing method, audio playing device and storage medium |
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