Circuit for synchronizing a transmitting-receiving station to a

Details Circuit for synchronizing a transmitting-receiving station to a Circuit for synchronizing a transmitting-receiving station to a

1981-07-31

1983-10-11

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

371 42, H04L 700

Patent

active

044096844

ABSTRACT:
A circuit is provided for synchronizing a transmitting/receiving station to the data network of a digital communications system having a correlation receiver in the relevant receiving device which supplies a correlation signal serving for synchronization purposes. The function of the correlation receiver is to implement the bit synchronization and block synchronization for the most favorable radio range from an asynchronous state, in the synchronous state to supply the adjustment criteria for the current radio range and, in the event of rebooking, to supply those of all the other possible radio ranges (indirect access to the adjusting elements via a computer). For this purpose, in the receiving device, the incoming non-generated items of received data are fed, on the one hand, to the correlation receiver and, on the other hand, to a regenerating device which can be set up by the signals of the correlation receiver. The correlation receiver comprises a signal output for the received pulse train setting-up (bit synchronization) and a signal output for block synchronization. The two signal outputs are connected to a computer. In addition, the signal output for the bit synchronization is connected to the regenerating device via a computer-control switch and via a phase pulse train shift device, whereas the signal output for block synchronization is connected thereto via a switch which is also controlled by the computer.

REFERENCES:
patent: 3576947 (1971-05-01), Kruger
patent: 3699261 (1972-10-01), Tomozawa
patent: 4232197 (1980-11-01), Acampora et al.
patent: 4312070 (1982-01-01), Coombes

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