Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2011-04-19
2011-04-19
Fischer, Andrew J. (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S050000, C705S059000, C709S223000, C709S226000, C709S229000, C709S224000, C726S005000
Reexamination Certificate
active
07930250
ABSTRACT:
A method for managing a specific domain (or user domain), for example leaving the domain by a specific device after fully returning a Rights Object (RO) taken by the specific device, instead of deactivating the RO, when leaving the specific domain, the method in which the device desiring to leave the specific domain moves its RO to another device desiring to join the specific domain and thereafter leaves the specific domain under the control of a Domain Authority/Domain Enforcement Agent (DA/DEA).
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Chu Youn-Sung
Keshavamurthy Kiran Kumar
Kim Te-Hyun
Lee Seung-jae
Birch & Stewart Kolasch & Birch, LLP
Fischer Andrew J.
LG Electronics Inc.
Obeid Mamon
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