DEVICE FOR SYNCHRONIZATION OF DIGITAL RECEIVER Russian patent published in 1999 - IPC

FIELD: digital information transmission. SUBSTANCE: device provides continuous comparison of arrival of trailing edges of input data and signal of voltage-controlled oscillator by means of time synchronous condition unit. In case of synchronization loss, this unit generates signals which indicate synchronization loss and advance or delay by means of detection of ratio of frequency and phase of output data signal and voltage-controlled generator signal. Level of signals which indicate synchronization loss and advance or delay corresponds to level of signal at output of phase detector. EFFECT: increased speed of synchronization and decreased mismatch error in phase and frequency. 4 cl, 5 dwg