Recording of scrambled digital data

Details Recording of scrambled digital data Recording of scrambled digital data

2011-01-18

2011-01-18

Lanier, Benjamin E (Department: 2432)

Cryptography

Video cryptography

Video electric signal modification

C380S210000, C380S211000, C380S230000, C380S239000, C705S051000, C705S052000, C705S055000, C705S058000

Reissue Patent

active

RE042044

ABSTRACT:
A system for transmitting and recording digital data is included. Further, a system for transmitting transmit scrambled audio data that is to be recorded on a mini disc reader is included. A system for transmission and recording of digital data includes transmission means adapted to prepare and transmit scrambled digital data together with at least one encrypted control word and a digital recording device adapted to receive and record the scrambled digital data and encrypted control word on a digital support. The digital recording device further includes an access control means adapted to decrypt the control word and thereafter descramble the digital data during playback.

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