Accession Number : ADD010271

Title :   Conjugate-Phase, Remote-Clock Synchronizer.

Descriptive Note : Patent,


Personal Author(s) : Waters,William M

Report Date : 18 Jan 1983

Pagination or Media Count : 6

Abstract : A method for synchronizing a master clock and a remote slave clock which nominally has the same pulse frequency but may be out of time-phase comprising transmitting a master pulse to the slave, measuring the time delay, delta tau, between the received pulse and the nearest succeeding (in time) slave pulse, by delaying the latter slave pulse by delta tau to provide a conjugate slave pulse, transmitting the conjugate pulse to the master time of reception of the conjugate pulse and time of generation of the original master pulse. The time delta is equal to twice the error between the master and slave pulses. The process can also be done at the slave station if the slave pulse is transmitted to the master and a conjugate-phase master pulse is retransmitted to the slave where the measurement is accomplished. The phase of the slave pulse can then be adjusted by delta/2 to synchronize it with the master pulse.

Descriptors :   *Patents, *Synchronization(Electronics), *Time signals, *Clocks, Pulses, Radio links, Satellite communications, Very high frequency, Remote systems, Transponders, Response

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE