A system for synchronous data transmission via a synchronous digital radio transmission channel 30

摘要

A system for synchronous data transmission through a digital transmission channel whose transmission clock is independent of the data clock. The data signal to be transmitted is sampled at the transmitting terminal with the transmission clock and the data signal is recovered at the receiving terminal from the received digital signal of the transmission channel by sampling this signal by means of a regenerated local data clock which is synchronized with the mean phase position of the transitions in the received digital signal. As a result both a high transmission efficiency and a low distortion of the recovered data signal is obtained.