H - Electricity – 04 – J
Patent
H - Electricity
04
J
363/17
H04J 3/06 (2006.01) H04B 7/212 (2006.01) H04B 7/24 (2006.01) H04L 7/033 (2006.01)
Patent
CA 1244973
ABSTRACT A multi-direction time division multiplex communication apparatus for a central station in a multi-direction time division multiplex communication system in which the central station transmits signals meant for each of satellite stations in a time division multiplex broadcast mode, while each of the satellite stations after extraction of a clock extracts the signal meant for the own station and intermittently transmits signals from the own station after adjusting the signals to such a timing that, when the signals from the own station reach the satellite station, the signals do not overlap with signals reaching the central station from the other satellite stations and appear as orderly as a single sequence of time division multiplex signals. Despite any fluctuation of an absolute delay time which may occur during communication between the central and satellite stations due to variations in the ambient conditions, the central station selects the output of a particular code regenerator circuit which is operating responsive to a decision clock whose timing matches with the fluctuation, thereby allowing the system as a whole to hold a communication without having the error rate increased.
495308
Corporation Nec
Smart & Biggar
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