摘要:
Methods for embedding data, such as digital watermarks, in video objects segmented from video frames. Watermarks are embedded such that they move with the object in the video frames. Interframe motion of video objects is estimated and used to modify the watermark accordingly. Methods for detecting embedded data from video objects are also disclosed.
摘要:
Systems and methods provide a content encryption schema for integrating digital rights management (DRM) in a multicast/broadcast encryption system. In one implementation, an exemplary integrated key schema provides content encryption keys that can be employed by a multicast or broadcast process, while providing DRM protection of recorded multicast content via a single DRM decryption secret. The integrated key schema provides high security and allows encrypted multicast content to be saved directly to local files. A license server can efficiently manage and generate DRM keys to be delivered to clients because only a single key needs to be delivered per license to a client. The integrated key schema can be applied together with conventional broadcast or multicast encryption techniques.
摘要:
Disclosed are compounds, compositions and methods for treating various diseases, syndromes, conditions and disorders, including pain. Such compounds are represented by Formula (I) as follows: wherein Y, Z, R1, and s are defined herein.
摘要:
Disclosed are compounds, compositions and methods for treating various diseases, syndromes, conditions and disorders, including pain. Such compounds are represented by Formula (I) as follows: wherein Y, Z, R1, and s are defined herein.
摘要:
Disclosed are compounds, compositions and methods for treating various diseases, syndromes, conditions and disorders, including pain. Such compounds are represented by Formula (I) as follows: wherein Y, Z, R1, and s are defined herein.
摘要:
Disclosed are compounds, compositions and methods for treating various diseases, syndromes, conditions and disorders, including pain. Such compounds are represented by Formula (I) as follows: wherein Y, Z, R1, and s are defined herein.
摘要:
Techniques described herein provide security for communications in web mashups. Some implementations secure web mashups by specifying and monitoring a lifecycle of one or more web applications that communicate with each other through implementation of lifecycle declarations. Furthermore, some implementations herein may use access tickets to provide access control between web applications in a web mashup.
摘要:
Key management is performed to generate a single key allowing of the decoding of all authorized levels of a plurality of access types within a scalable codestream. An access node set is derived from sets representing access types having hierarchies representable by fully ordered sets, such as resolution and layer levels, and hierarchies representable by partially ordered sets, such as tile and precinct levels. The access node set derived is a partially ordered set representing the combinations of levels of the access types included within the codestream. A hierarchical key management system is applied to the access node set to assign a key to each of the access nodes, generate content encryption keys, and encrypt the codestream. A client receiving the codestream, access node set, and other public information uses the key to derive additional keys to decrypt the codestream.
摘要:
A method and system for separated image compression are disclosed. According to one embodiment a computer-implemented method comprises initiating transfer of a screen image, preparing the screen image for separation, separating the screen image into image blocks, compressing the image blocks into image packets, and transmitting the image packets.
摘要:
A public licensing infrastructure (PLI) for a digital rights management (DRM) system is described. In an implementation, a method includes generating a formal license for content. The formal license includes a decryption key for decrypting the content and access rules for accessing the content. A plurality of license authorities is configured to provide a plurality of partial licenses. The plurality of partial licenses is combinable to form the formal license. Each license authority provides a respective partial license.