| 摘要 |
PURPOSE:To eliminate various ghosts with small-scale hardware, by performing the time division processing to use a delay element and an amplifier commonly. CONSTITUTION:Since a delay line part 9A is operated by a clock phi1, the waveform inputted to a switch S2 becomes a waveform obtained by delaying an input signal by 3tau, and the waveform inputted to a switch S3 becomes a waveform obtained by delaying the input signal by 6tau. In respect to these switch outputs, waveforms sampled by clocks phi1, phi2, and phi3 are obtained and are inputted to a delay line part 9B having a delay time tau. Outputs of the part 9B are added in an adder 4 through a tap amplifier 3 of a gain 1 and are sent to a sample holding circuit 11. Outputs of the circuit 11 are added in an adder 12 and have high frequency components eliminated by a low pass filter 13 and are oututted as video signals. |
