Multiple DRM management

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9406066
APP PUB NO 20090210698A1
SERIAL NO

12386629

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A DRM packager has a programmed processor for receipt of licensing information including a plurality of encryption keys for a corresponding plurality of DRM encryption algorithms and for receipt of content from a content provider. An encrypter encrypts the content under each of the plurality of DRM algorithms to produce multiple DRM selectively encrypted content, where the multiple DRM selectively encrypted content has segments of the specified content that are unencrypted, and selected segments of the content which are duplicated to produce one copy of the selected content for each of the DRM algorithms with each duplicate copy of the selected segments encrypted under a different one of the DRM algorithms, and where the unencrypted segments of content are assembled together with each of the DRM encrypted duplicate selected segments to produce a single unified content assembly that can be played on any of the player devices. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

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Patent Owner(s)

  • SONY CORPORATION;SONY ELECTRONICS INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Candelore, Brant L Escondido, US 205 9966

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