| 摘要 |
Methods and systems for preventing reception of licensed protected content prior to reception of a license, in a content rendering device wherein, the license corresponds to the licensed protected content and to the content rendering device. The license may be stored on the content rendering device in a database that may be searchable by a key. The license and the key may be associated within a file comprising the licensed protected content. A proxy computer may handle operations for the content rendering device, a DRM license server and a content server. Media Transfer Protocol (MTP) features regarding GetDeviceInfo, SendObjectInfo and SendObjectPropList operations may be utilized to activate DRM license protection for receiving the license prior to the corresponding license protected content. The content rendering device may reject transmission of and reject rendering the corresponding license protected content if the license is not resident in its database. |
