On Tuesdays the USPTO issues new patents. Both of today's Spotlight Patents addresses aspects of digital rights management. Assigned to Intertrust (Hi Talal), the first patent concerns techniques for retrofitting electronic appliances to accept different content formats. Assigned to Microosoft, the second patent concerns peer-to-peer networks with protections.
7,987,514, "Systems and methods for retrofitting electronic appliances to accept different content formats," assigned to Intertrust Technologies.
Systems and methods are disclosed for using an arbitrary fixed channel to carry third-party information. In one embodiment, the present invention provides systems and methods for enabling existing content rendering devices to accept content encoded in a proprietary format, such as an encoding format used by a digital rights management system. The encoded content is rendered by the device in the normal manner, and decoded by a retrofitting appliance connected to the device's output. The retrofitting appliance may apply decoded rules and controls to the decoded content, thereby managing use of the content.
7,987,368, "Peer-to-peer networks with protections," assigned to Microsoft.
In a peer-to-peer environment, copyrights and users' privacies can be protected by a tracking mechanism. In described implementations, tracking mechanisms can use certificates that are produced using random numbers to protect the privacy of users and/or certificates that are produced responsive to at least one hardware identifier to enable uploader to be identified to protect copyrights.