Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2006-08-10
2009-12-22
Worjloh, Jalatee (Department: 3685)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S001100, C705S050000, C705S052000, C705S059000, C380S231000, C382S254000
Reexamination Certificate
active
07636692
ABSTRACT:
A management center registers user information that includes user identification information for identifying a user terminal and improvement-information identification information for identifying improvement information recorded in an optical disk and processed by the user terminal. When a user terminal requests improvement information through a network, the management center searches for another user terminal that can provide necessary information, according to user information, and obtains the improvement information from the another user terminal searched for, through the network. The management center then provides the obtained improvement information for the user terminal that requested it, through the network.
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Ando Kazutaka
Tange Akira
Frommer William S.
Frommer & Lawrence & Haug LLP
Levy Paul A.
Sony Corporation
Worjloh Jalatee
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