CN1858765A - Method and device for sharing content protected by digital copyright - Google Patents
Method and device for sharing content protected by digital copyright Download PDFInfo
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- CN1858765A CN1858765A CN 200610034677 CN200610034677A CN1858765A CN 1858765 A CN1858765 A CN 1858765A CN 200610034677 CN200610034677 CN 200610034677 CN 200610034677 A CN200610034677 A CN 200610034677A CN 1858765 A CN1858765 A CN 1858765A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000007639 printing Methods 0.000 claims description 10
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Abstract
This invention discloses a method and a device for sharing digital copyright protection content including: User device A sends the content protected by digital copyright DRM protection to user device B via MMS, B receives said MMS and analyses the content protected by DRM to get the copyright object RO of the content protected by DRM and use the content protected by DRM based on the rule in RO.
Description
Technical Field
The present invention relates to the technical field of mobile communication multimedia messages, and in particular, to a method and an apparatus for sharing digital copyright protection content.
Background
Mms (multimedia Messaging service) is capable of providing point-to-point, point-to-application, and application-to-point multimedia message storage and forwarding services that are extremely rich in content. The message may be non-real-time content composed of plain text, pictures, video, audio, and other media formats.
Various applications can be developed using MMS, for example, in the OMA MMS version 1.3 of the open mobile alliance OMA (open mobile alliance), a post card service PostCard application of MMS is defined, which is: user a (with MMS client) creates an MMS message (possibly using an MMS template) containing pictures and text, while filling in the postal address and zip code of user B. Then sent to a PostCard server which prints out the PostCard and then hands it to a post office which sends it to user B by means of traditional postal mail.
When the user applies the PostCard service, the pictures, texts and the like sent by the user by using MMS may be from digital media protected by digital rights drm (digital Right management). When a user forwards digital media of interest, such as music, movies, etc., to other users, the content that he forwards may also originate from DRM-protected digital media.
DRM is a technology that has been developed to protect digital media, such as games, ring tones, images, audio, video, etc., from illegal copying and illegal use. The DRM system specified in OMA DRM2.0 comprises a terminal DRM Agent, a content center ci (content issue), and an authorization center ri (rights issue). As shown in fig. 1, there is a DRM Agent in the user equipment, and the process of using DRM-protected digital media by the user is:
browsing a CI website by a user to acquire interested media Content, wherein the Content is in a DRM Content format DCF (DRM Content Format);
the user equipment connects RI to obtain rights object RO (right object) of DCF, and DRM Agent uses DCF according to the rule in RO. If there is no RO or the rights usage rule specified in the RO has expired, the user will not be able to use the DCF any more.
Therefore, when a user uses the PostCard service, if the user wants to print copyrighted picture content on a PostCard, the PostCard Server cannot be realized because it does not have an RO. Also, the user may have such a problem when using similar MMS services.
Disclosure of Invention
The present invention is directed to overcoming the problems of the prior art and providing a method for sharing digital rights protected content. The method comprises the following steps:
the user equipment A sends the content protected by the digital copyright DRM to the user equipment B through the MMS;
after receiving the MMS, the user equipment B analyzes the content protected by the DRM from the MMS;
the user equipment B acquires the rights object RO of the DRM protected content;
the user equipment B uses the DRM-protected content according to the rights usage rule in the RO.
The method for the user equipment B to acquire the RO is as follows:
user a provides the authorization center RI with identifying information of user B and requests to send the RO for the DRM protected content to user device B. Or,
the user A requests the RI to distribute the copyright usage right owned by the RI to the user B, and provides the RI with the identification information of the user B, and the RI generates the RO of the user B according to the distributed authority of the user B.
If user A distributes the copyright usage right part to user B, RI sends new RO generated for the residual copyright usage right of user A to user device A, and informs user device A that the original RO is invalid.
User equipment B parses the DRM protected content in the MMS, extracts the URL of RI therefrom, connects to RI and obtains the RO requested by user a for him.
The method for the user equipment B to acquire the RO may further be:
user A or user B connects RI to register and join some domain;
another user connects RI to register and join the same domain;
a user A acquires a domain RO of a content after acquiring the content protected by DRM;
user a carries the domain RO in an MMS that sends DRM protected content to user B, or sends the domain RO separately.
The user equipment B is a post card PostCard server in the MMS post card application, the PostCard server is connected with RI to register and join a certain domain, and the user A is connected with RI to register and join the same domain.
The user equipment B is provided with a DRM Agent program DRM Agent.
The user device B is a PostCard server in an MMS PostCard application.
User a also contains the content of the PostCard in the MMS of the DRM protected content sent to the PostCard server.
The copyright usage rule contained in the RO acquired by the PostCard server is valid for one or more prints.
It is another object of the present invention to provide an apparatus for enjoying digital rights protected contents. The device includes: MMS parser and DRM Agent, wherein:
the MMS resolver is used for resolving the content of the MMS, distinguishing the DCF and the acquisition mode of the RO, and informing the DRM Agent of the acquisition mode of the RO;
and the DRM Agent is used for acquiring the RO according to the RO acquisition mode sent by the MMS resolver, acquiring the DCF from the MMS resolver and using the DCF according to the requirements in the RO.
The device is arranged on a PostCard PostCard server in an MMS PostCard application;
the MMS parser is also used for distinguishing the content used for printing the postcard;
the device further comprises:
and the printing module is used for executing the operation of printing the PostCard according to the content of the PostCard provided by the MMS parser and the DRM Agent.
By the method and the device, the user can share the content protected by the DRM to the third party for use, and the content is still well protected by copyright when the third party uses the content protected by the DRM. Therefore, the application of the invention can expand the application range of the DRM protected content, promote the development of DRM and provide wider space for the application of MMS. The technical scheme of the invention has good development prospect.
Drawings
FIG. 1 is a prior art RO acquisition flow diagram;
FIG. 2 is a flowchart illustrating RO acquisition according to a first embodiment of the present invention;
FIG. 3 is a flow chart of RO acquisition according to a second embodiment of the present invention;
FIG. 4 is a flowchart of a RO acquisition process according to a third embodiment of the present invention;
fig. 5 is a system configuration diagram of a fourth embodiment of the present invention.
Detailed Description
The main idea of the invention is as follows: when user A forwards the content protected by DRM to user B through MMS, user B purchases RO or distributes the RO owned by user B to user B, and user B receives MMS and obtains RO from the appointed RI. Thereby enabling user a to enable user B to share media content of interest to him.
In order to implement the method of the present invention, the user devices of both user a and user B must be provided with DRM agents.
As shown in fig. 2, the first embodiment of the present invention is:
when the user A forwards the DCF interested by the user A to the user B, the process of independently purchasing the RO for the user B comprises the following steps:
the user A browses a CI website to obtain an interested DCF;
the user A browses the website of the RI, provides the identification information of the user B to the RI and requests to send the RO of the DCF to the user B;
user A sends MMS containing DCF to user B;
the user equipment parses the content of the DCF. The Rights-issue in the DCF format records the universal resource locator URL of the copyright Issuer. And the user equipment B is connected to the RI after resolving the URL of the RI to acquire the RO.
The universal resource locator URL of the copyright Issuer is recorded in the Rights-issue. And the user equipment B is connected to the RI after resolving the URL of the RI to acquire the RO.
After obtaining the RO, the user device B can access the DFC through the DRM Agent, and use the DFC according to the rules in the RO.
As shown in fig. 3, the second embodiment of the present invention is:
when the user A forwards the DCF interested by the user A to the user B, the user A distributes the copyright usage authority of the user A to the user B, and the process is as follows:
the user A browses a CI website to obtain an interested DCF;
the user equipment A connects with RI to obtain the rights object RO of DCF, the RO may contain many kinds of rights usage rules, such as the number of times or time that the DCF can be browsed, the time that the DCF can reside locally, the number of times that it can be printed, etc.;
user A sends MMS containing DCF to user B;
and if the user A distributes the copyright use right part to the user B, the RI generates a new RO aiming at the residual copyright use right of the user A and sends the new RO to the user equipment A, and informs the user equipment A that the original RO is invalid.
After receiving MMS sent by user A, user equipment B analyzes URL of RI from it, connects to RI to obtain RO distributed by user A.
As shown in fig. 4, the third embodiment of the present invention is:
the domain sharing approach using OMA DRM2.0 enables user a to have user B share media content of interest to him. The process is as follows:
user A or user B connects RI to register and join some domain;
user B or user A connects RI to register and join the same domain;
the user A browses a CI website to obtain an interested DCF;
user equipment A connects RI to obtain domain RO of DCF;
user a sends an MMS to user B, which contains the DCF content and the domain RO.
After receiving MMS, the user equipment analyzes DCF and domain RO.
The fourth embodiment of the present invention is:
the method of the present invention may be used in combination with the PostCard application of OMA MMS 1.3, in which case the server of the PostCard needs to be added with a DRM Agent and the PostCard server is considered as user B in the method of the present invention. When used in conjunction with a PostCard application, the MMS sent by subscriber a containing the DCF also contains the content of the PostCard.
For example, if the content of the DCF is a picture, the PostCard server may obtain the RO and the DCF by any one of the three embodiments, and solve the picture in the DCF. The PostCard is then printed out and mailed in the traditional postal manner, with the pictures and other parts of the MMS arranged regularly in the MMS-expressed part (e.g., SMIL), such as text messages, etc.
In order to protect digital rights, in this embodiment, the usage rule for rights in RO purchased by user a for the PostCard server may be defined as: one or more prints are available.
When the third embodiment is used in conjunction with a PostCard application, a domain may be registered and added by the PostCard server for more convenient operation, and user a or another user may be added to the domain registered by the PostCard server when using the PostCard service.
Fig. 5 is a system configuration diagram of the present embodiment. The system includes user equipment, an RI, and a PostCard Server.
The user equipment comprises a DRM Agent and an MMS editor.
The MMS sent by the user equipment to the PostCard server contains a header and a body, and the DCF is present in the DATA part of the MMS body and is described in the MMS rules part.
The PostCard server comprises an MMS parser, a DRM Agent and a printing module.
And the MMS resolver is used for resolving the content of the MMS, distinguishing the content for printing the postcard, distinguishing the DCF and the acquisition mode of the RO, and informing the DRM Agent of the acquisition mode of the RO.
And the DRM Agent is used for acquiring the RO according to the RO acquisition mode sent by the MMS resolver, acquiring the DCF from the MMS resolver and using the DCF according to the requirements in the RO.
And the printing module is used for executing the operation of printing the PostCard according to the content of the PostCard provided by the MMS parser and the DRM Agent.
The above description is a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (13)
1. A method of distributing digital rights protected content, comprising:
the user equipment A sends the content protected by the digital copyright DRM to the user equipment B through the MMS;
after receiving the MMS, the user equipment B analyzes the content protected by the DRM from the MMS;
the user equipment B acquires the rights object RO of the DRM protected content;
the user equipment B uses the DRM-protected content according to the rights usage rule in the RO.
2. The method of enjoying digital rights protected content according to claim 1, wherein user equipment B acquires the RO in such a manner that:
user a provides the authorization center RI with identifying information of user B and requests to send the RO for the DRM protected content to user device B.
3. The method of claim 1, wherein the user equipment B acquires the RO by:
the user A requests the RI to distribute the copyright usage right owned by the RI to the user B, and provides the RI with the identification information of the user B, and the RI generates the RO of the user B according to the distributed authority of the user B.
4. A method for enjoying digital rights protected content according to claim 3, wherein if the user a assigns its rights usage part to the user B, the RI generates a new RO for the remaining rights usage of the user a to the user device a and notifies the user device a of the failure of the original RO.
5. A method for enjoying digital rights protected content according to any one of claims 2 to 4, wherein after parsing out the DRM protected content in MMS, user equipment B extracts URL of RI therefrom, connects to RI and acquires RO requested by user A for it.
6. The method of claim 1, wherein the user equipment B acquires the RO by:
user A or user B connects RI to register and join some domain;
another user connects RI to register and join the same domain;
a user A acquires a domain RO of a content after acquiring the content protected by DRM;
user a carries the domain RO in an MMS that sends DRM protected content to user B, or sends the domain RO separately.
7. The method for enjoying digital rights protected content according to claim 6, wherein said user equipment B is a post card PostCard server in an MMS post card application, the PostCard server is connected to the RI registration to join a domain, and the user a is connected to the RI registration to join the same domain.
8. The method for enjoying digital rights protected content according to any one of claims 1, 2, 3, 4, 6 and 7, wherein a DRM agent DRMAgent is provided in said user equipment B.
9. The method for sharing drm content according to any one of claims 1, 2, 3 and 4, wherein the user equipment B is a post card PostCard server in an MMS post card application.
10. The method of claim 8, wherein the user a further includes the contents of the PostCard in the MMS of the DRM-protected contents transmitted to the PostCard server.
11. The method of claim 9, wherein the rights usage rule included in the RO acquired by the PostCard server is valid for one or more prints.
12. An apparatus for distributing digital rights protected content, comprising: MMS parser and DRM Agent, wherein:
the MMS resolver is used for resolving the content of the MMS, distinguishing the DCF and the acquisition mode of the RO, and informing the DRM Agent of the acquisition mode of the RO;
and the DRM Agent is used for acquiring the RO according to the RO acquisition mode sent by the MMS resolver, acquiring the DCF from the MMS resolver and using the DCF according to the requirements in the RO.
13. The apparatus for enjoying digital rights protected content according to claim 12, wherein said apparatus is provided on a post card PostCard server in an MMS post card application;
the MMS parser is also used for distinguishing the content used for printing the postcard;
the device further comprises:
and the printing module is used for executing the operation of printing the PostCard according to the content of the PostCard provided by the MMS parser and the DRM Agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610034677 CN1858765A (en) | 2006-03-24 | 2006-03-24 | Method and device for sharing content protected by digital copyright |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610034677 CN1858765A (en) | 2006-03-24 | 2006-03-24 | Method and device for sharing content protected by digital copyright |
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| Publication Number | Publication Date |
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| CN1858765A true CN1858765A (en) | 2006-11-08 |
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| CN 200610034677 Pending CN1858765A (en) | 2006-03-24 | 2006-03-24 | Method and device for sharing content protected by digital copyright |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007121632A1 (en) * | 2006-04-21 | 2007-11-01 | Huawei Technologies Co., Ltd. | Method for receiving digital television broadcasting service, master terminal and slave terminal thereof |
| CN105378741A (en) * | 2013-06-08 | 2016-03-02 | 微软技术许可有限责任公司 | Continuous digital content protection |
-
2006
- 2006-03-24 CN CN 200610034677 patent/CN1858765A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007121632A1 (en) * | 2006-04-21 | 2007-11-01 | Huawei Technologies Co., Ltd. | Method for receiving digital television broadcasting service, master terminal and slave terminal thereof |
| CN105378741A (en) * | 2013-06-08 | 2016-03-02 | 微软技术许可有限责任公司 | Continuous digital content protection |
| CN105378741B (en) * | 2013-06-08 | 2018-06-12 | 微软技术许可有限责任公司 | Continuous number content protecting |
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