New pending patent applications are published by the USPTO on Thursdays. Both of today's Spotlight Applications concern aspects of digital rights management. Assigned to Ericsson (SE), the first application discloses techniques for video distribution control. Assigned to Viaaccess (FR), the second application discloses techniques for broadcasting protected multimedia contents.
20170374422, "Video distribution control," assigned to Ericsson (SE).
A biststream of encoded video data captured by a camera of a user device is received and decoded into a stream of decoded video frames. A light pattern representing a VLC signal captured by the camera is identified in at least one decoded video frame and decoded into a DRM identifier. Distribution of the bitstream is controlled based on a comparison of the DRM identifier and a defined DRM identifier. Hence, VCL is used to add watermarks to recorded video data and where such watermarks can be used to control distribution of copyright or digital rights protected video content.
20170373778, "Method for broadcasting protected multimedia contents," assigned to Viaccess (FR).
A method for broadcasting protected multimedia content includes, at predetermined intervals, having an access-rights server broadcast each new right of access to the broadcast multimedia content only to those terminals whose logins are included in a broadcast list. In response to a predetermined event, a terminal sends, to the access-rights server, via a point-to-point connection, a status message indicating, to the access-rights server, that the terminal is in its ready state. Alternatively, if the terminal is occupied, it avoids sending a status message. In the absence of reception of the status message that was expected in response to the predetermined event, the access-rights server automatically removes the identifier of the terminal from the broadcast list.