Microsoft Technology Licensing, LLC

Amit Jain

Brian Patrick Evans

Benjamin Brooks Cutter, Jr

Clifford Paul Strom

Clifford Paul Storm

Vlad Riscutia

Carlos Peza Ramirez

Axel Alejandro Gutierrez Olivo

Michael Yui-Kwan Siu

Andrei Scripniciuc

Sinduja Ramanujam

Carlos E Peza Ramirez

A system activates an application on a computing device based on a prior activation of an isolated counterpart application on the computing device. An application that is restricted from sharing a license with a counterpart application locally on the computing device is enabled to instead communicate with an application license manager to manage license data corresponding to the counterpart application. For example, when a license is obtained at the computing device for a container application, the application license manager may update license data in association with a native application so that a counterpart license can be obtained automatically by the native application, and vice versa. Thus, once a user has responded to an activation prompt for either one of the container application or the native application, whichever application the user has not manually activated will be automatically activated at the computing device based on communications with the application license manager.

Activation of an application based on prior activation of an isolated counterpart application

A method of generating a device certificate. A method of generating a device certificate comprising, constructing a device certificate challenge at a device, sending information to a device certificate individualization server in response to the device certificate challenge, validating the device certificate challenge by the device certificate individualization server, and validating the device certificate response by the device.

Device certificate individualization

A system of controlling playback of digital media. A system of controlling playback of digital media comprising a CE device having a secure clock and a license having a specified grace period disposed upon the CE device in which a digital media file governed by the license may be played for the grace period upon failure of the secure clock.

Secure clock with grace periods

Described herein are one or more implementations for transforming (e.g., transcoding) DRM-protected digital media content while retaining associated DRM-information (e.g., a user license its related information).

Retention of information about digital-media rights in transformed digital media content

Generating a device certificate. A method of generating a device certificate comprising forming a template that will generate a device certificate upon the occurrence of a triggering event, filling in an authorization root certificate section of the template; filling in an authorization certificate section of the template, filling in a group certificate section of the template, and forming a device certificate section of the template.

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Sammamish, WA, United States of America

Amit Jain