Television system without afterimage of auto kine bias reference signal and method for removing the after image thereof

摘要

A television system and a method for removing the afterimage of the automatic Kin bias reference signal are disclosed. The system includes sawtooth signal generating means for outputting a signal increased by a predetermined value in response to the horizontal synchronizing signal as a sawtooth signal, timing control signal generating means for outputting a timing control signal in response to the horizontal synchronizing signal, and a timing control signal. In response, video signal processing means for outputting video signal processed video data or outputting an AKB reference signal, selection means for selectively outputting a predetermined AKB pulse value or sawtooth signal in response to a timing control signal, and reduction of the displayed image. And a control means for outputting a predetermined AKB pulse value at a time, wherein the predetermined AKB pulse value selected by the selection means increases the amplitude of the sawtooth wave signal, thereby eliminating the afterimage problem of the AKB reference signal in the zoom mode. It has an effect.