Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2006-10-10
2006-10-10
Louis-Jacques, Jacques (Department: 2134)
Cryptography
Video cryptography
Video electric signal modification
C713S153000, C725S031000, C725S071000
Reexamination Certificate
active
07120253
ABSTRACT:
A key protected data stream and an encryption key are received at a gateway device. The gateway devices unprotects the data stream based upon the encryption key. The unprotected received data is modified by the gateway to generate a modified data. The modified data is protected based upon the encryption key to generate a key protected modified data. The gateway then transmits the key protected modified data to one or more clients along with the encryption key.
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Ducharme Paul
Eng Steven
Heneghan Matthew
Louis-Jacques Jacques
VIXS Systems, Inc.
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