Research/Patents/US 5805635
US 5805635Tier 3 — General Defense

SECURE COMMUNICATION SYSTEM

Assignee

US Government

Filed as: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY

Filed

Sep 10, 1982

Granted

Sep 8, 1998

Location

Arlington VA (defense contractors)

Abstract

A secure communication system comprising: a first cyclical pseudo-random noise generator comprising determinable vable 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.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Sep 10, 1982

Rescinded

Feb 12, 1998

Duration

15 years, 5 months

Back to patent indexSource: USPTO 35 USC §181 secrecy order records