Secure Communication System,
Patent, Filed 17 Mar 64, patented 8 Sep 98,
DEPARTMENT OF THE NAVY WASHINGTON DC
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The invention pertains to a secure communication system comprising a first cyclical pseudo-random noise generator comprising determinable variable starting point means and an output transmitting means for transmitting said pseudo-random noise generator output receiving means for receiving said transmitting means transmissions, said receiving means having an output recycling storage means for storing said receiving means output a second cyclical pseudo-random noise generator identical to said first pseudo-random noise generator having an output and a reset input, said receiving means output connected to said reset input a correlator having a first input connected to said storage means and a second input connected to said second pseudo-random noise generator output and an output from said correlator and timing means connected to said receiving means output and said correlator output for measuring time elapsed between any output of said receiver and said correlator.
- Radio Communications