APPARATUS FOR SYNCHRONIZING A BINARY DATE SIGNAL

摘要

An apparatus in a receiver for data signals for correctly detecting a transmitted message with the aid of a local clock signal which is asynchronous in relation to the received data signal is described. A condition hereby is that the addition or fall-away of sporadic binary characters in the message do not have any effect. This condition is met in a redundant system, for example, in which the same message of a fixed number of bits is sent repeatedly in sequence and the receiver accepts the message providing it detects the same message a given number of times during a given time. According to the method, the incoming data signal (A) is first clocked with a phase-corrected clock signal (F) and thereafter once again with the uncorrected clock signal (B).