Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2005-06-14
2005-06-14
Meislahn, Douglas (Department: 2137)
Cryptography
Video cryptography
Video electric signal modification
C714S780000
Reexamination Certificate
active
06907125
ABSTRACT:
An apparatus and method for processing information, including an error-correcting coding device for encoding information data into at least one error-correcting code, the error-correcting code containing the information data and a parity check code, and an encryption device for encrypting at least a portion of the information data and at least a portion of the parity check code contained in the error-correcting code. In this manner, unauthorized copying of the digital data is prevented and the copyright on the data is protected. In one embodiment, unauthorized users can partially view image data that is not selected for encryption by an encryption selector.
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