Accession Number : ADD009683

Title :   Multiplexed Noise Coded Switching System.

Descriptive Note : Patent Application,


Personal Author(s) : Gutleber,Frank S

Report Date : 28 Jul 1982

Pagination or Media Count : 24

Abstract : A switching system for performing line to line or group to group switching of communication signals modulated by multiplexed noise codes. The noise codes comprise a subclass or set of multiplexed noise codes consisting of code mate pairs which provide an impulse autocorrelation function when detected and furthermore crosscorrelate to zero at a time when the code mate pairs compress to an impulse providing thereby orthogonal operation, meaning that there is no mutual interference between any of the input/output lines when the signals are translated thereon concurrently. Plural sets of noise code generators and code selectors are coupled to predetermined ones of a plurality of sets of matched filter detectors and code selectors in accordance with a switching algorithm which sets selected code selectors to the same code mate pairs so that a specific signal applied to a predetermined input line and thereafter coupled to modulation means connected to one set of code generators is directed to a predetermined output line that is connected to a matched filter decoder pair matched to the input code.

Descriptors :   *Patent applications, *Electronic switching, *Secure communications, Multiplexing, Antijamming, Coding, Modulation, Coupling(Interaction), Algorithms, Input output devices, Matched filters, Inventions, Noise generators

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE