公开(公告)号：US5600212A

公开(公告)日：1997-02-04

申请号：US19979

申请日：1993-02-22

申请人： Gangolf Hirtz ,  Bernd Bader ,  Yves Francois ,  Bernd Tenconi ,  Fritz Ohnemus

发明人： Gangolf Hirtz ,  Bernd Bader ,  Yves Francois ,  Bernd Tenconi ,  Fritz Ohnemus

IPC分类号： H01J29/70 ,  H01J29/76 ,  H01J29/82 ,  H04N3/30 ,  H04N3/32 ,  G09G1/04

CPC分类号： B82Y15/00 ,  H01J29/705 ,  H01J29/762 ,  H01J29/823 ,  H04N3/30 ,  H04N3/32 ,  H01J2229/5687 ,  H01J2229/7037

摘要： A deflection method and circuit for symmetrical horizontal scanning in a television tube utilizes a vertical deflection coil and an auxiliary vertical deflection coil. The vertical deflection coil is energized with a sawtooth vertical scanning current having a first slope during vertical trace to generate a first vertical deflection field. The auxiliary vertical deflection coil is energized with a sawtooth vertical auxiliary current having a line frequency and a second slope during horizontal trace equal but opposite to the first slope of the vertical scanning current to generate a second vertical deflection field. The first and second vertical deflection fields are superimposed in the tube to produce a stepped vertical deflection field.

摘要翻译： 电视管中的对称水平扫描的偏转方法和电路利用垂直偏转线圈和辅助垂直偏转线圈。 垂直偏转线圈在垂直走线期间具有具有第一斜率的锯齿形垂直扫描电流来激励，以产生第一垂直偏转场。 辅助垂直偏转线圈在垂直扫描电流的第一斜率等于但相反的水平轨迹期间具有线频率和第二斜率的锯齿形垂直辅助电流，以产生第二垂直偏转场。 第一和第二垂直偏转场叠加在管中以产生阶梯式垂直偏转场。