04232193 is referenced by 182 patents and cites 9 patents.

In a message signal scrambling apparatus, the signal is divided into elements, each of one time slot duration, and the elements are re-arranged in order so as to produce a signal scrambled in time. Each element is entered and stored in a charge coupled device, from which is extracted as required to form part of a re-arranged order of elements.

Title
Message signal scrambling apparatus
Application Number
5/902570
Publication Number
4232193
Application Date
May 3, 1978
Publication Date
November 4, 1980
Inventor
Roger E J Gerard
Chelmsford
GB
Agent
Diller Ramik & Wight
Assignee
The Marconi Company
GB
IPC
H04K 1/06
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