| Patent application number | Description | Published |
|---|
| 20080271155 | METHOD AND APPARATUS FOR OBTAINING DRM CONTENT PACKETS - A method for obtaining DRM content packets is provided. The method enables a terminal to obtain another DCF when the terminal is unable to use a downloaded DCF. The method includes receiving the first content packet, which includes media content types and corresponding URLs, and resolving the first content packet; selecting a media content type and the corresponding URL in the first content packet; downloading the second content packet from the selected URL. | 10-30-2008 |
| 20090037493 | METHOD AND DEVICE FOR UPDATING AN OBJECT WITH COPYRIGHT ATTRIBUTE - The present invention discloses a method for updating an object with copyright attribute, thereby solving the problem of the prior art that a terminal equipment (TE) can still consume the original Media Object (MO) after a MO is updated. The method comprises: obtaining a MO which is changed from a server, and obtaining a corresponding new Copyright Object (RO) from a Copyright Issuance (RI) server, by a TE; and installing the changed MO and deleting the original MO and the original RO corresponding to the original MO by the TE. At the same time, the invention further discloses a TE. | 02-05-2009 |
| 20090151001 | METHOD AND APPARATUS FOR OPERATING RIGHTS - A method for operating a Right For Contents (R4C) includes: obtaining, by a terminal, a hybrid RO generated by the RI server, with the R4C items and the operation Rights For Rights (R4Rs) carried in the hybrid RO; operating the R4C items in the hybrid RO according to the R4R. A method for adding an R4R includes: a terminal receives a hybrid RO that includes the existing rights of the terminal and the newly added R4R; the terminal operates the R4C in the hybrid RO according to the new R4R. The present invention also discloses a terminal and a server. The present invention enables the RI to control the rights at a finer granularity, intensifies the RI's control on the rights, and provides a mechanism of purchasing an R4R after an RO is purchased. | 06-11-2009 |
| 20090158440 | SYSTEM AND METHOD FOR EXPORTING LICENSE - A method for exporting permission is provided to solves the problem that the permission can not be exported multiple times among several DRM systems in the prior art; the method includes that: determining that a license is permitted to be exported to a system that a target device belongs to; determining whether an export permission in the license is permitted to be exported; and exporting the export permission in the license to the target device if the export permission in the license is permitted to be exported, which enables the target device to export the license to another device. A terminal apparatus, a server and a communication network are also disclosed. | 06-18-2009 |
| 20090240983 | METHOD AND SYSTEM FOR LICENSE INTERACTION AND INTERACTION RECOVERY AFTER INTERRUPTION - A method for license interaction and interaction recovery after interruption overcomes the problems of mobility loss and waste of rights of the license due to interruption of communication during the license interaction. This method includes: when a first device and a second device interact on license information, both devices record the interaction related information; after the interaction is interrupted and the connection is re-established, the first device and the second device continue the interaction when determining that the interaction is uncompleted according to the recorded information. A communication device and a digital rights management (DRM) system are also disclosed. | 09-24-2009 |
| 20100017888 | METHOD, DEVICE AND SYSTEM FOR TRANSFERRING LICENSE - The present invention discloses a method for transferring licenses, a device for issuing licenses, and a communication system, and relates to the Digital Rights Management (DRM) technology. The method includes: the first issuing device receives a request of transferring a license issued by the second issuing device; the first issuing device transfers the license after determining that a relationship is set up with the second issuing device. The license issuing device includes: a receiving module, a setup module, a determining module, and a sending module. The communication system includes: a first issuing device, a second issuing device, and a device requesting to transfer a license. Through the present invention, an issuing device may transfer the licenses issued by other issuing devices, thus improving the flexibility of transferring the licenses. | 01-21-2010 |
| 20100215181 | METHOD FOR IMPORTING RIGHTS OBJECT AND RIGHTS ISSUER - A method for importing or moving a rights object (RO) is provided, which includes the following steps. A rights issuer (RI) receives a request message of importing or moving an RO to a target device, the request message including key information encapsulated by a public key of the target device; the RI generates the RO according to the request message, the RO including the key information encapsulated by the public key of the target device; and the RI provides the RO for the target device. An RI is also provided. In the present invention, the key information encapsulated by the public key of the target device is provided for the RI, and the real key is hidden from the RI, such that the un-trust RI cannot generate the illegal RO for other devices except the target device, thereby enhancing the security of importing or moving the RO through the RI. | 08-26-2010 |
