Accession Number : ADD009627

Title :   Apparatus for Multiplexing Digital Signals.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Redfern,John T ; Dressel,Gary A

Report Date : 18 May 1982

Pagination or Media Count : 14

Abstract : The invention is an apparatus and method for multiplexing digital information acquired from a multiplicity of data terminals distributed along a conductor fo given length. A cyclic synchronization signal consisting of a stream of coding periods is transmitted upon the conductor. The duration of each coding period exceeds the two way travel time through the conductor. The leading edge of a coding period stimulates the transmission of one bit of a digital word stored in each terminal. The bits from the terminals arrive at a system receiver in a time sequence corresponding to the spatial distribution of the terminals. Bits are collected in storage registers according to their significance which is determined by the respective coding period during which they are received. A word from a particular terminal is derived by strobing the output of the storage registers at the time corresponding to the position of the terminal.

Descriptors :   *Patents, *Multiplexing, *Synchronization(Electronics), *Digital systems, Information transfer, Cycles, Receivers, Spatial distribution, Registers(Circuits), Signals, Coding, Length, Data processing terminals, Inventions, Leading edges, Position(Location), Time intervals, Storage, Travel time, Clocks

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE