VIDEO SIGNAL PROCESSING CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a video signal processing circuit for realizing the multiple screens of moving images by using a FIFO memory without degrading image quality by a passing phenomenon. SOLUTION: Field memories (FIFO memories) 2 and 3 are separately provided with a terminal IE for controlling the validity/invalidity of data input and the terminal WAE for controlling the validity/invalidity of address increase. Write area control circuits 8 and 9 write video signals to a partial area and a field signal shift circuit 10 shifts field signals FOE and generates the field signals FOE'. A passing avoiding field generation circuit 11 generates the field signals FOE" for indicating a field where the passing phenomenon is not generated by read reset signals RRST and the field signals FOE'.