MEDIA DECODING CONTROL WITH HARDWARE-PROTECTED DIGITAL RIGHTS MANAGEMENT

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 medi...

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Hauptverfasser:	SADHWANI, Shyam, EVANS, Brian P, FARAG, Hany, WENKER, Samuel J, WU, Yongjun, DARSA, Lucia
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator	SADHWANI, Shyam EVANS, Brian P FARAG, Hany WENKER, Samuel J WU, Yongjun DARSA, Lucia
description	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.
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subjects	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
title	MEDIA DECODING CONTROL WITH HARDWARE-PROTECTED DIGITAL RIGHTS MANAGEMENT
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