发明名称 DELAY TIME FLUCTUATION COMPENSATION SYSTEM
摘要 PURPOSE:To absorb a delay time fluctuation of sender side transmission information with respect to a change in a reference phase in a reception station by constituting the system of a delay circuit section delaying the transmission information by a prescribed time and sending the delayed information, a comparator detecting a phase difference between the transmission signal and the reference signal and a circuit controlling the delay time in response to the phase difference. CONSTITUTION:This system is provided with a processing 3 comparing a phase 5 of transmission information 4 with a reference phase 6 in the station and outputting its phase difference, a delay control circuit 2 measuring a time when the output is in on-state, comparing it with a preceding measured value and outputting its fluctuation, and a variable delay circuit section 1 adjusting an output timing of transmission information 40 based on the fluctuation. Thus, the comparator 3 outputs a waveform shown in figure in response to the difference quantity between the phase 5 of the transmission information whose phase is coincident with the transmission information 4 and the reference phase 6 in the station, the circuit section 1 delays the information 4 based on the output so that a prescribed delay time is maintained at all times between the information sets 4 and 40. That is, information sets A, B, C are always delayed by one frame.
申请公布号 JPH0514330(A) 申请公布日期 1993.01.22
申请号 JP19910189300 申请日期 1991.07.03
申请人 NEC CORP 发明人 MATSUSHIMA TORU
分类号 H04J3/06;H04L7/00 主分类号 H04J3/06
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