05280497 is referenced by 1 patents and cites 6 patents.

For protection of communication against interception by frequent pseudorandom changing of the distribution of transmissions on channels, an input distributive switch is installed before the channel division device of a transmitting system and a similar output switch is installed after the channel division device of a receiving system. The distributive switches are controlled by synchronized pseudorandom generators and while the input switch repeatedly changes the distribution of transmissions on channels, and thereby channel of each transmission, the output switch directs all signals of each transmission to a fixed circuit defined for reception of that transmission.

Title
Communicating on wandering channels
Application Number
355452
Publication Number
5280497
Application Date
May 28, 1991
Publication Date
January 18, 1994
Inventor
Gutman Levitan
140 Van Cortland Ave. West, Bronx, 10463
NY, US
Agent
Ilya Zborovsky
IPC
H04L 27/30
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