Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility
Reexamination Certificate
2005-08-16
2005-08-16
Vu, Kim (Department: 2135)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Security kernel or utility
C382S100000, C382S232000
Reexamination Certificate
active
06931531
ABSTRACT:
Selective encryption for object data such that objects having copyrights to-be-protected are encrypted. There are provided a plurality of data compression devices for compressing respective object data respectively corresponding to a plurality of objects which compose a scene, a multiplexor for multiplexing scene description data and compressed object data to produce a multiplexed bit stream MB, a scrambler for encrypting (scrambling) individual streams corresponding to the objects having copyrights to-be-protected in the multiplexed bit stream MB, to produce an encrypted bit stream SB, for outputting the encrypted bit stream SB to a data storage medium or a data transmission medium.
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Klimach Paula
Matsushita Electric - Industrial Co., Ltd.
Vu Kim
Wenderoth , Lind & Ponack, L.L.P.
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