Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2011-01-18
2011-01-18
Reagan, James A (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S051000, C705S052000, C705S053000, C705S054000, C705S055000, C705S057000, C705S058000, C705S059000, C380S201000, C380S202000, C380S203000, C380S204000, C380S227000, C380S228000, C380S229000, C380S230000, C726S004000, C726S021000, C726S027000, C726S028000
Reexamination Certificate
active
07873578
ABSTRACT:
An on-line service manages downloads of purchased digital content. Information regarding the digital content items that are purchased by each user and the terms of use of those purchased items is maintained. Information regarding the formats of digital content items that each device is adapted to receive is maintained. Upon determining that a user wishes to download a digital content item, the requested digital content is downloaded in an appropriate format for a particular digital device provided the recorded information indicates the content item has been purchased by the user and the download is within the quantity of downloads authorized by the terms of the purchase.
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Fowler J. Clinton Paul
Hook Jerry P.
Johnson Jerry Alan
Krishnamoorthy Shyam
Microsoft Corporation
Reagan James A
Woodcock & Washburn LLP
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