Digital video signal process apparatus for use in a video tape r

Details Digital video signal process apparatus for use in a video tape r Digital video signal process apparatus for use in a video tape r

1985-05-30

1987-07-14

Buczinski, Stephen C.

Cryptography

Cryptanalysis

380 20, 380 21, H04N 7167

Patent

active

046807918

ABSTRACT:
A processing apparatus for producing a recording signal from a video signal is disclosed. The video signal is coded to include a plurality of sub-blocks, each of the sub-blocks including a synchronizing code representing a period of the sub-block. Address information varying in content at every sub-block is added to synchronizing code. A pseudo-random signal having a different code pattern with respect to each of the sub-blocks is generated. The video signal is scrambled responsive to the pseudo-random signal.

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Patel, Arvind M., "A Multi-Channel CRC Register", Spring Joint Computer Conference, 1971.
Hsiao et al., "Serial-to-Parallel Transformation of Linear-Feedback Shift-Register Circuits," IEEE Transactions on Electronic Computers, Dec. 1964.

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