| 摘要 |
PURPOSE:To attain the compensation in matching with delay distortion, by inserting an in-phase circuit having the relation of in-phase with an input signal to a system different from a system of a charge transfer type comb line filter including an inverted amplifier having a definite band width. CONSTITUTION:A video signal input is branched into two, and a signal at the 1st branch 2 is branched further into two via the in-phase circuit 30. The output of the inverted amplifier 10 is summed with the output of a delay device 33 via a delay device 37. Further, the output of a delay device 34 is summed with the output of the delay device 33. The two inputs at the point of time of summation are set to a prescribed delay time difference accurately in this way and an ideal comb line filter characteristic is realized. |
