公开(公告)号：US4810940A

公开(公告)日：1989-03-07

申请号：US181066

申请日：1988-04-13

申请人： Masanori Ogino ,  Yoshio Amemiya ,  Michiko Okino ,  Kazuro Washi

发明人： Masanori Ogino ,  Yoshio Amemiya ,  Michiko Okino ,  Kazuro Washi

IPC分类号： H04N3/16 ,  H04N3/23 ,  H04N3/233 ,  H01J29/70 ,  H01J29/72

CPC分类号： H04N3/233

摘要： A vertical deflection circuit of the negative feedback type wherein a feedback signal, being generated at a terminal of a deflection current detector resistance connected in series with a vertical deflection yoke, is connected to negative feedback amplifier which guides the output of a sawtooth wave generating circuit through a third order distortion wave generating circuit. The third order distortion wave generating circuit imparts third order distortion of positive polarity to said feedback signals, so that third order distortion of negative polarity is imparted to the current of said deflection yoke, and whereby the third order distortion is compensated and extinguished on the CRT display.

摘要翻译： 负反馈型的垂直偏转电路，其中在与垂直偏转线圈串联连接的偏转电流检测器电阻的端子处产生的反馈信号连接到负反馈放大器，该负反馈放大器引导锯齿波发生电路的输出 通过三阶失真波发生电路。 三阶失真波生成电路向所述反馈信号施加正极性的三阶失真，使得负极性的三阶失真被赋予所述偏转线圈的电流，由此在CRT上补偿和消除三阶失真 显示。