Phase correction circuit, signal discriminator circuit of the two, phases correction method and method of the two signal discriminator

摘要

An absolute value difference calculation part receives an absolute value difference between a first component and a second component. A components discriminator part or a signal discriminator of the two hinge part (circuit) is discriminated an input color signal by means of a phase discrimination and removal of discrimination with the use of the absolute value difference. A correction by means of the guiding part corrects the phase of the input color signal with the use of the absolute value difference. The absolute value difference calculation part is, by means of an adder and / or of a subtractor on a circuit constructed in a small circumference.