Microsoft Technology Licensing, LLC

Hany Farag

Yongjun Wu

Shyam Sadhwani

Kedarnath Atmaram Dubhashi

Brian Patrick Evans

Samuel John Wenker

Sumedh N Barde

Corneliu I Lupu

John A Bocharov

Shawn Michael Murphy

Gilles Khouzam

Gregory W Nichols

Kiran Kumar

Andre F Vachon

Lucia Darsa

Gabriel J Aul

Fedir Yuriyovych Kyslov

Kinshuman Kinshuman

Lossy data stream decoder techniques are described herein. In response to a request for decoded content from a consuming application, a decoder may validate headers and identify portions of the data that are considered pertinent to the request. The decoder then performs lossy extraction to form incomplete data that is provided to the consuming application in response to the request. The full data for the data stream is not exposed to the consuming application or other downstream components. In this way, the consuming application is provided data sufficient to perform requested graphics processing and resource management operations, while at the same time the risk of piracy is mitigated since the consuming application is unable to get a full version of the data in the clear and the data have been validated by the decoder.

Lossy data stream decoder

Innovations in the area of hardware-protected digital rights management ('DRM') systems are presented. For example, a hardware-protected DRM system includes a trusted layer and untrusted layer. In the untrusted layer, a control module receives source media data that includes encrypted media data. The control module processes metadata about the media data. The metadata, possibly exposed by a module in the trusted layer, is not opaque within the untrusted layer. In the trusted layer, using key data, a module decrypts encrypted media data, which can be the encrypted media data from the source media data or a transcripted version thereof. A module in the trusted layer decodes the decrypted media data. A host decoder in the untrusted layer uses the metadata to manage at least some aspects of the decoding, rendering and display in the trusted layer, without exposure of decrypted media data or key data within the untrusted layer.

Media decoding control with hardware-protected digital rights management

Various embodiments for software application verification are disclosed. Software application verification applies digital rights management to applications that run protected content on a playback device. In this way, protected content may be provided to approved applications and withheld from applications that have not been approved to run the protected content.

Software application verification

Various embodiments provide a mapping layer to translate DRM system requirements from one DRM system, such as a source system, to another DRM system, such as a target system. In at least some embodiments, DRM system requirement translation is performed using a signed data structure that maps DRM system requirements from one DRM system to one or more other DRM systems. By mapping DRM system requirements from one system to another, licenses associated with DRM-protected content and associated content can be safely transferred between systems.

Translating DRM system requirements

A vertical can be a series of computer-executable instructions that, in response to an incident, collect information regarding that incident and transmit the information for analysis and possible helpful feedback to the user. A general purpose vertical can address types of incidents, such as crashes or hangs, across a variety of applications, while a custom vertical can be written to address application-specific incidents. Verticals can access underlying support mechanisms through an infrastructure, which can also enable applications to request that additional data be collected by the verticals, and set other preferences. Once the data is collected and transmitted, a vertical may receive feedback, that can be a request for additional information or feedback to the user. The feedback to the user can attempt to identify the incident and aid the user in recovering from it and avoiding it in the future.

Method and system for an incidental feedback platform

Growing community of inventors

Redmond, WA, United States of America

Hany Farag