System for controlling the distribution and use of digital works using digital tickets

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United States of America Patent

PATENT NO 7664708
SERIAL NO

11240569

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Abstract

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A method, system and software for controlling the number of times that a usage right associated with a digital work can be exercised, including creating a digital work; determining a usage right for the digital work, the usage right specifying a digital ticket, the digital ticket indicating a number of times the usage right may be exercised; requesting access to the digital work including an identification of the usage right; determining the validity of the usage right based on a number of times the digital ticket has been used; granting or denying access to the digital work based on the result of the determining step; and updating the digital ticket if access to the digital work is granted.

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Patent Owner(s)

Patent OwnerAddress
CONTENTGUARD HOLDINGS INC103 FOULK ROAD SUITE 200-M WILMINGTON DE 19803

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pirolli, Peter L T San Francisco, US 58 4325
Stefik, Mark J Portola Valley, US 151 10940

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