Accession Number : ADD000162
Title : Method and Apparatus for Synchronizing Split-Phase PCM Signals.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Hoffman,Eric J ; Loessi,Jack C
Report Date : 29 Jan 1974
Pagination or Media Count : 5
Abstract : The patent describes a device for resolving ambiguity of the start of a split-phase coded data bit. The device is initially synchronized with the zero crossings or polarity transition points in the coded data. A first integrator integrates the signal over one-half the data bit interval, and holds this value. A second integrator integrates the signal over the successive portion of the data bit interval and these two integrator signals are then compared.
Descriptors : *Data transmission systems, *Synchronization(Electronics), *Patents, Pulse code modulation, Phase, Coding, Clocks, Synchronism
Subject Categories : Non-radio Communications
Distribution Statement : APPROVED FOR PUBLIC RELEASE