System and method for managing multimedia contents in intranet
First Claim
Patent Images
1. A system for managing multimedia contents in an intranet, comprising:
- a server, comprising a processor and a memory, wherein if the server receives multimedia contents from one of a plurality of DRM server groups having a unique DRM solution respectively, the server performs communication relating to services with the corresponding DRM server group according to the DRM solution of the received multimedia contents, converts the received multimedia contents into multimedia contents having a format suitable for at least one client of the intranet and transmits the converted multimedia contents to the client;
wherein the server comprises a plurality of proxy managers constructed according to DRM server groups, the proxy managers each comprising;
a platform authentication unit operable to request a license for multimedia contents from a corresponding DRM server group which provides the multimedia contents, and performing registration of the client;
a content conversion unit operable to decrypt multimedia contents received from the corresponding DRM server group, and converting the decrypted multimedia contents into multimedia contents having a format suitable for the client; and
a license translation unit operable to translate a license received from the corresponding DRM server group into a license having a format suitable for the client,wherein each DRM server group has the unique DRM solution to be executable on different applications,wherein the converted multimedia contents are encrypted and transmitted to the client; and
wherein the encrypted is performed using a group key of the server.
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Abstract
A system and method for managing non-free multimedia contents in an intranet. The system includes proxy managers provided in a server of the intranet, for example, a media center or set-top box, and clients, for example, DRM smart clients in wired/wireless digital information appliances, such as Digital TVs or PDAs. Various kinds of encrypted multimedia contents and license information are converted by the proxy managers into multimedia contents and license information having a format executable by the DRM smart clients.
63 Citations
24 Claims
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1. A system for managing multimedia contents in an intranet, comprising:
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a server, comprising a processor and a memory, wherein if the server receives multimedia contents from one of a plurality of DRM server groups having a unique DRM solution respectively, the server performs communication relating to services with the corresponding DRM server group according to the DRM solution of the received multimedia contents, converts the received multimedia contents into multimedia contents having a format suitable for at least one client of the intranet and transmits the converted multimedia contents to the client; wherein the server comprises a plurality of proxy managers constructed according to DRM server groups, the proxy managers each comprising; a platform authentication unit operable to request a license for multimedia contents from a corresponding DRM server group which provides the multimedia contents, and performing registration of the client; a content conversion unit operable to decrypt multimedia contents received from the corresponding DRM server group, and converting the decrypted multimedia contents into multimedia contents having a format suitable for the client; and a license translation unit operable to translate a license received from the corresponding DRM server group into a license having a format suitable for the client, wherein each DRM server group has the unique DRM solution to be executable on different applications, wherein the converted multimedia contents are encrypted and transmitted to the client; and wherein the encrypted is performed using a group key of the server. - View Dependent Claims (2, 3, 4)
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5. A system for managing multimedia contents in an intranet, comprising:
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at least one client operable to receive and execute multimedia contents, converted by a server, comprising a processor and a memory, of the intranet into multimedia contents having a format suitable for the client of the intranet, wherein if the server receives multimedia contents from one of a plurality of DRM server groups having a unique DRM solution respectively, the server performs communication relating to services with the corresponding DRM server group according to the DRM solution of the received multimedia contents, converts the received multimedia contents into multimedia contents having a format suitable for at least one client of the intranet and transmits the converted multimedia contents to the client; wherein the server comprises a plurality of proxy managers constructed according to DRM server groups, the proxy managers each comprising; a platform authentication unit operable to request a license for multimedia contents from a corresponding DRM server group which provides the multimedia contents, and performing registration of the client; a content conversion unit operable to decrypt multimedia contents received from the corresponding DRM server group, and converting the decrypted multimedia contents into multimedia contents having a format suitable for the client; and a license translation unit operable to translate a license received from the corresponding DRM server group into a license having a format suitable for the client, wherein each DRM server group has the unique DRM solution to be executable on different applications; wherein the license translated by the server is encrypted and transmitted to the client; wherein the encryption of the license is performed using a group key of the server; and wherein the client comprises; a rights management unit operable to decrypt the license which is encrypted and transmitted, and to check whether decrypted multimedia contents are executed in the client to be suitable for the decrypted license. - View Dependent Claims (6, 7, 8, 9, 10, 11, 24)
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12. A method of managing multimedia contents in an intranet, comprising:
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a server, comprising a processor and a memory, of the intranet performing communication relating to services with the corresponding DRM server group according to the DRM solution of the received multimedia contents if receiving multimedia contents from one of a plurality of DRM server groups having a unique DRM solution respectively, converting the received multimedia contents into multimedia contents having a format suitable for at least one client of the intranet and transmitting the converted multimedia contents to the client; wherein the server comprises a plurality of proxy managers constructed according to DRM server groups, the proxy managers each comprising; a platform authentication unit operable to request a license for multimedia contents from a corresponding DRM server group which provides the multimedia contents, and performing registration of the client; a content conversion unit operable to decrypt multimedia contents received from the corresponding DRM server group, and converting the decrypted multimedia contents into multimedia contents having a format suitable for the client; and a license translation unit operable to translate a license received from the corresponding DRM server group into a license having a format suitable for the client, encrypting the converted multimedia contents, wherein each DRM server group has the unique DRM solution to be executable on different applications, and wherein the encryption is performed using a group key of the server. - View Dependent Claims (13, 14, 15, 16)
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17. A method of managing multimedia contents in an intranet, comprising:
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receiving and executing multimedia contents, converted by a server, comprising a processor and a memory, of the intranet into multimedia contents having a format suitable for at least one client of the intranet, by the client, wherein if the server receives multimedia contents from one of a plurality of DRM server groups having a unique DRM solution respectively, the server performs communication relating to services with the corresponding DRM server group according to the DRM solution of the received multimedia contents, converts the received multimedia contents into multimedia contents having a format suitable for at least one client of the intranet and transmits the converted multimedia contents to the client; wherein the server comprises a plurality of proxy managers constructed according to DRM server groups, the proxy managers each comprising; a platform authentication unit operable to request a license for multimedia contents from a corresponding DRM server group which provides the multimedia contents, and performing registration of the client; a content conversion unit operable to decrypt multimedia contents received from the corresponding DRM server group, and converting the decrypted multimedia contents into multimedia contents having a format suitable for the client; and a license translation unit operable to translate a license received from the corresponding DRM server group into a license having a format suitable for the client, wherein each DRM server group has the unique DRM solution to be executable on different applications, wherein the license translated by the server is encrypted and transmitted to the client; and wherein the encryption of the license is performed using a group key of the server; and checking whether the decrypted multimedia contents are executed in the client to be suitable for a decrypted license. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification