Time-divisional phase synchronizing apparatus for a time-divisional multiple signal of burst mode

Claim 1

A time-divisional phase synchronizing apparatus for a timedivisional multiple signal of burst mode including signals of a plurality of stations, comprising: a standard oscillator operative to generate a continuous wave having a stable frequency substantially equal to the frequency of the time-divisional multiple signal of burst mode; a phase lock loop comprising a phase detector, memory means and a phase shifter; input means for applying the time-divisional multiple signal of burst mode to the phase detector; the phase shifter controlling time divisionally the phase position of the output of the standard oscillator in accordance with the contents of the memory means; the phase detector producing time divisionally outputs having levels respectively proportional to the absolute values of differences between the respective phase positions of the timedivisional outputs of the phase shifter and the respective phase positions of the signals of stations and having the polarities corresponding respectively to signs of said differences; the memory means storing separately, by the use of the timedivisional outputs of the phase detector, phase information of the signals of respective stations in each frame of the timedivisional multiple signal of burst mode; and output means coupled with the phase lock loop to derive time divisionally reference waves to be applied to detect the signals of respective stations.