New applications are published on Thursdays. Both of today's Spotlight Applications concern aspects of digital rights management. Assigned to Huawei, the first application discloses techniques for media information access control, and digital home multimedia system. Assigned to Netflix, the second application discloses aspects of fast-expiring licenses used to speculatively authorize access to streaming media content.
20150082395, "Method and apparatus for media information access control, and digital home multimedia system," assigned to Huawei Device Co., Ltd. (CN).
The present invention is applicable to the field of digital home networks and provides a method and apparatus for media information access control, and a digital home multimedia system. The method includes aggregating media information and access rights information of the media information on a first media server. The method also includes returning, to a control device that sends a media access request, a media information list which the control device has rights to access. The media information list is returned according to the aggregated media information and the aggregated access rights information of the media information. The present invention ensures security of the media information in the digital home multimedia system when the media information in the digital home multimedia system is aggregated for browsing.
20150074818, "Fast-expiring licenses used to speculatively authorize access to streaming media content," assigned to Netflix.
Techniques are disclosed for improving user experience of multimedia streaming over computer networks. More specifically, techniques presented herein reduce (or eliminate) latency in playback start time for streaming digital media content resulting from digital rights management (DRM) authorizations. A streaming media client (e.g., a browser, set-top box, mobile telephone or tablet "app") may request a "fast-expiring" license for titles the streaming media client predicts a user is likely to begin streaming. A fast-expiring license is a DRM license (and associated decryption key) which is valid for only a very limited time after being used for playback. During the validity period of such a license, the client device requests a "normal" or "regular" license to continue accessing the title after the fast-expiring license expires.
Media information access control, and digital home multimedia system