Accession Number : ADD006433

Title :   Secret Pulse Signaling System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Krause,Ernst H

Report Date : 07 Aug 1979

Pagination or Media Count : 11

Abstract : This invention relates broadly to a radio type intelligence transmission system and in particular to a radio pulse type signalling system wherein the time occurrence of the pulse signals is used both to convey and to dissemble the intelligence of the transmission. In accordance with the teachings of this invention, a group comprising two or more electrical impulses is transmitted over a given time interval. The desired message is conveyed by those electrical impulses bearing a certain time relationship to the start of the transmission while other of the electrical impulses bearing a different time relationship serve to mask the intelligence so conveyed. The group structure, that is, the disposition of impulses in the group, may be altered according to the information it is desired to send and according to the disguise desired for that information.

Descriptors :   *Patents, *Secure communications, *Radiofrequency pulses, Signal processing, Pulse transmitters, Electronic intelligence, Time intervals

Subject Categories : Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE