Information signal transmission system

Details Information signal transmission system Information signal transmission system

1997-06-06

1998-12-22

Buczinski, Stephen C

Cryptography

Key management

Having particular key generator

380 20, 380 21, 380 29, 380 37, 380 18, H04N 7167, H04N 144, H04L 900

Patent

active

058526633

ABSTRACT:
The information signal transmission system of the present invention is so designed as to convert the analog information signal into digital information data and to transmit these digital data after enciphering a part of the digital data. It can therefore maintain the secrecy of the transmitted information signal and can employ a low-speed enciphering process, thereby reducing the magnitude of hardware and reducing its cost.

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patent: 4817146 (1989-03-01), Szczutkowski et al.
patent: 4916736 (1990-04-01), Ryan
patent: 5062136 (1991-10-01), Gattis et al.
patent: 5398283 (1995-03-01), Virga

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