Cryptography – Communication system using cryptography – Pseudo-random sequence scrambling
Reexamination Certificate
2005-02-08
2005-02-08
Peeso, Thomas R. (Department: 2132)
Cryptography
Communication system using cryptography
Pseudo-random sequence scrambling
C380S202000, C380S210000
Reexamination Certificate
active
06853731
ABSTRACT:
The present invention may be regarded as a digital video recorder (DVR) comprising a storage device for storing an encrypted video program, a unique ID for interlocking the encrypted video program with the digital video recorder, and a cryptography facility. The cryptography facility comprises an encoder, responsive to the unique ID, for encrypting a plaintext video program into the encrypted video program stored on the storage device, and a decoder, responsive to the unique ID, for decrypting the encrypted video program stored on the storage device into the plaintext video program during playback.
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Boyle William B.
Rice Alan P.
Keen Personal Media, Inc.
Keen Personal Technologies, Inc.
Peeso Thomas R.
Shara, Esq. Milad G.
Sheerin, Esq. Howard H.
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