Key sharing for DRM interoperability

United States of America Patent

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Nov 23, 2010
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Jun 30, 2006
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Jul 1, 2005

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Abstract

According to one embodiment, a method comprises generating a cryptographic key and sharing the cryptographic key with a plurality of digital rights management (DRM) systems supplied by different providers. This provides flexibility in using any DRM system by media receiving devices targeted to receive media.

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Patent Owner(s)

Patent Owner	Address
SONY CORPORATION	1-7-1 KONAN MINATO-KU TOKYO 1080075 ?1080075
SONY ELECTRONICS INC	1 SONY DRIVE PARK RIDGE NJ 07656

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G06F:ELECTRIC DIGITAL DATA PROCESSING

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Inventor Name	Address	# of filed Patents	Total Citations
Candelore, Brant L	San Digeo, US	208	10494

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Key sharing for DRM interoperability

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11479404

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US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
November 23, 2010	US,7840489,B2 US7840489B2	GRANTED PATENT AS SECOND PUBLICATION
January 04, 2007	US,20070005506,A1 US20070005506A1	FIRST PUBLISHED PATENT APPLICATION

PATENT NO	7840489
SERIAL NO	11479404
DOCKET NO

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11479404

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