Accession Number : AD0164614
Title : Digital Bit Synchronizer.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Natali,Francis D.
Report Date : 14 JUL 1972
Pagination or Media Count : 11
Abstract : The patent application describes a system for deriving synchronizing pulses from a train of digital signals that is fed to in-phase and mid-phase gates each including an adder with a delay feedback. The output of the mid-phase gate is multiplied by a sign factor determined by a logic circuit connected to the in-phase gate. The output of the two gates are then mixed, filtered, and summed with a value dependent upon the clock rate and fed to a number controlled oscillator which includes a counter and a comparing circuit. The output of the number controlled oscillator is fed back to the in-phase and mid-phase gates.
Descriptors : *Synchronization(Electronics), Patents, Synchronism, Circuits, Digital systems, Signals, Phase locked systems, Logic circuits
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE