Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2006-12-19
2006-12-19
Reagan, James A. (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S052000, C705S053000, C705S054000, C705S055000, C705S056000, C705S057000, C705S058000, C705S059000, C705S050000, C380S201000, C707S793000, C707S793000, C713S182000, C713S183000, C713S184000, C713S185000, C713S186000
Reexamination Certificate
active
07152046
ABSTRACT:
A method and system for managing the state of a protected resource in a system for granting access to a protected resource in accordance with usage rights. The usage rights include at least one state variable indicating a status of an associated protected resource. A message related to the state variable is transmitted from a resource control device to an interface framework. The resource control device is coupled to the resource to control use of the resource by enforcing the usage right. A state controller operative to track the value of the state variable is loaded into the framework and instructed to manipulate the value of the state variable in accordance with said message. For example, the message can be a query of the current value of the state variable.
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Chen Eddie J.
DeMartini Thomas
Gilliam Charles P.
Ham Manuel
Lao Guillermo
ContentGuard Holdings Inc.
Kaufman Marc S.
Nixon & Peabody LLP
Reagan James A.
Villamar Carlos R.
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