| 摘要 |
Disclosed is a trap circuit (54) which a filter unit (1) which receives a composite video signal and outputs a video signal, the filter unit (1) removing a signal of a trap frequency band from the composite video signal by filter characteristics depending on a resonance sharpness and an attenuation, the resonance sharpness being set by the sharpness setting data, the attenuation at a high frequency side being corrected by the attenuation setting data, and an adjustment circuit (3) which receives a reference signal and frequency setting data, the adjustment circuit (3) setting the trap frequency band of the filter unit in accordance with the reference signal and the frequency setting data. <IMAGE> |
