Data providing system, device, and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7073073
SERIAL NO

09786516

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Abstract

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A content provider 101 distributes a secure container 104 storing content data encrypted using content key data, content key data encrypted using distribution key data, and encrypted usage control policy data indicating the handling of the content data to a SAM 105.sub.1 of a user home network 103 etc. The SAM 105.sub.1 etc. decrypts the content data and usage control policy data stored in the secure container 104 and determines the purchase mode and usage mode and other handling of the content data based on said decrypted usage control policy data.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATIONTOKYO JAPAN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ezaki, Tadashi Tokyo, JP 53 1680
Nonaka, Akira Tokyo, JP 10 703

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