REGENERATION CIRCUIT OF SECAM SYSTEM CHROMINANCE SIGNAL

摘要

PURPOSE:To reduce the number of terminals for inputting/outputting of signals, by connecting directly the carrier chrominance signal of direct side to a permutator and inserting a variable resistance for level control in the path of delay side carrier chrominance signal. CONSTITUTION:Direct side carrier chrominance signal is connected directly to a permutator 18 in an integrated circuit element 15 without outputted to outside of the integrated circuit element 15. A variable resistance 21 for level control is inserted in the 1H delay line 20 side to suppress generation of line crawling. An amplifier 24 that compensates loss in the delay line 20 etc. is provided in the integrated circuit element 15 and inputted to the permutator 18.