Pincushoin distortion correction apparatus
    1.
    发明公开
    Pincushoin distortion correction apparatus 失效
    Vorrichtung zur Korrektur von Kissenverzerrungen

    公开(公告)号:EP1301029A2

    公开(公告)日:2003-04-09

    申请号:EP02026020.4

    申请日:1996-11-18

    发明人: Endo, Morio

    IPC分类号: H04N3/23

    CPC分类号: H04N3/237

    摘要: At least one pair of series connected reactor coils (12-15) are connected in series with a horizontal deflection coil (11). A coil (22) is connected in series with a vertical deflection coil. There is provided a magnetic field producing means for applying a magnetic bias field to said reactor coils and said coil, wherein said reactor coils are connected so that said magnetic bias field is applied to said respective reactor coils in the same direction as the magnetic field caused by one of said reactor coils and is applied to said respective reactor coils in opposing direction to the magnetic field caused by the other reactor coil, wherein an intensity of said magnetic bias field applied to said reactor coils is varied by the magnetic field caused by said coil, thereby controlling respective inductance of said reactor coils such that the inner pincushion distortion in the vertical direction is corrected on the basis of the sum of the respective inductance of said reactor coils, wherein in upward deflection on said picture face, the absolute value of the magnetic field caused by said coil is larger than the absolute values of the magnetic fields caused by said reactor coils, and smaller than the absolute values of the magnetic bias fields caused by said magnetic field producing means.

    摘要翻译: 至少一对串联的电抗器线圈(12-15)与水平偏转线圈(11)串联连接。 线圈(22)与垂直偏转线圈串联连接。 提供了一种用于向所述电抗器线圈和所述线圈施加磁偏置场的磁场产生装置,其中所述电抗器线圈被连接,使得所述磁偏置电场以与磁场相同的方向施加到所述各个电抗器线圈 由所述电抗器线圈中的一个施加到所述各个电抗器线圈,与由另一个电抗器线圈引起的磁场相反的方向,其中施加到所述电抗器线圈的所述磁偏置电场的强度由所述电抗器线圈引起的磁场变化 线圈,从而控制所述电抗器线圈的相应电感,使得基于所述电抗器线圈的相应电感之和校正垂直方向上的内枕形失真,其中在所述图像面上的向上偏转中,绝对值 由所述线圈引起的磁场大于由所述电抗器线圈引起的磁场的绝对值, 并且小于由所述磁场产生装置引起的磁偏置场的绝对值。

    Pincushion distortion correction apparatus
    3.
    发明公开
    Pincushion distortion correction apparatus 失效
    一种用于校正枕形失真设备

    公开(公告)号:EP1301029A3

    公开(公告)日:2007-05-09

    申请号:EP02026020.4

    申请日:1996-11-18

    发明人: Endo, Morio

    IPC分类号: H04N3/23

    CPC分类号: H04N3/237

    摘要: At least one pair of series connected reactor coils (12-15) are connected in series with a horizontal deflection coil (11). A coil (22) is connected in series with a vertical deflection coil. There is provided a magnetic field producing means for applying a magnetic bias field to said reactor coils and said coil, wherein said reactor coils are connected so that said magnetic bias field is applied to said respective reactor coils in the same direction as the magnetic field caused by one of said reactor coils and is applied to said respective reactor coils in opposing direction to the magnetic field caused by the other reactor coil, wherein an intensity of said magnetic bias field applied to said reactor coils is varied by the magnetic field caused by said coil, thereby controlling respective inductance of said reactor coils such that the inner pincushion distortion in the vertical direction is corrected on the basis of the sum of the respective inductance of said reactor coils, wherein in upward deflection on said picture face, the absolute value of the magnetic field caused by said coil is larger than the absolute values of the magnetic fields caused by said reactor coils, and smaller than the absolute values of the magnetic bias fields caused by said magnetic field producing means.