Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network monitoring
Reexamination Certificate
2011-01-25
2011-01-25
Harrell, Robert B (Department: 2442)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network monitoring
Reexamination Certificate
active
07877473
ABSTRACT:
A method of exchanging content between a source device and a connected device based on a detected transfer mode. In a first mode, the source device retrieves data from a connected device and revokes the access right information corresponding to the content at the connected device. In a second mode, which is based on the detection of a group identification scheme included in the content, the content may be copied back and forth between the source device and the connected device without any revocation of access rights.
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Harrell Robert B
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sony Corporation
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