Loading patent…
AssigneeMicrosoft Technology Licensing, LLC
InventorsYongjun Wu, Balachandar Sivakumar, Shyam Sadhwani
Estimating the term…
Video content is protected using a digital rights management (DRM) mechanism, the video content having been previously encrypted and compressed for distribution, and also including metadata such as closed captioning data, which might be encrypted or clear. The video content is obtained by a system of a computing device, the metadata is extracted from the video content and provided to a video decoder, and the video content is provided to a secure DRM component. The secure DRM component decrypts the video content and provides the decrypted video content to a secure decoder component of a video decoder. As part of the decryption, the secure DRM component drops the metadata that was included in the obtained video content. However, the video decoder receives the extracted metadata in a non-protected environment and thus is able to provide the extracted metadata and the decoded video content to a content playback application.
A method implemented in a computing device, the method comprising:
A method implemented in a computing device, the method comprising:
A computing device comprising:
Dependencies are inferred from the claim text.