SYNCHRONIZING DEVICE Russian patent published in 2001 - IPC

FIELD: sync pulse generation in processing digital data signals. SUBSTANCE: device has multiphase standard signal generator in the form of inverter 1 with feedback applied through multiple-tap delay line 2 and first multiplexer 3. Address of multiplexer 3 as well as number of standard phases and standard frequency are set by first reversible pulse counted 9. Sync signal is shaped by second multiplexer 4 and EXCLUSIVE OR gate 5 controlled by second variable-capacitance counter 8 whose capacitance depends on state of first counter 9. Phase-frequency comparator 7 specifies counting direction of both counters (9 and 8) using results of comparison of input and output signal phases. Carry/borrow pulses of second counter 8 function as clock pulses of first counter 9. EFFECT: enlarged synchronizing frequency band. 3 cl, 3 dwg