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    CATHODE RAY TUBE COMPRISING AN ELECTRON GUN
    3.
    发明授权
    CATHODE RAY TUBE COMPRISING AN ELECTRON GUN 有权
    WITH A电子枪阴极射线管

    公开(公告)号：EP0995216B1

    公开(公告)日：2003-09-03

    申请号：EP99914704.4

    申请日：1999-04-29

    申请人： Koninklijke Philips Electronics N.V.

    发明人： DEKKER, Martijn, J. ,  NOORDERMEER, Leendert, J.

    IPC分类号： H01J29/50

    CPC分类号： H01J29/484

    摘要： A cathode ray tube comprises an electron gun with means for generating electron beams. External magnetic fields influence the electron beams and reduce the picture quality. An electrode of the gun includes a part made of a soft-magnetic material, which extends transversely to the electron beams, and two parts, situated to the left and to the right of the electron beams, which extend along said electron beams. Together these parts form a magnetic circuit. Preferably, these parts are strongly magnetically coupled, for example, because they are interconnected or very closely spaced. Interaction of the magnetic circuit formed by said three parts with an external magnetic field causes a Lorentz force on the electron beams. The resultant deviations in the paths of the electron beams largely compensate for the deviations in the paths of the electron beams caused by the effect of the external magnetic field between the electron gun and the display screen.

    METHOD AND DEVICE FOR RECORDING MARKS IN AN INFORMATION LAYER OF AN OPTICAL RECORD CARRIER, AND RECORD CARRIERS FOR USE THEREIN
    6.
    发明公开
    METHOD AND DEVICE FOR RECORDING MARKS IN AN INFORMATION LAYER OF AN OPTICAL RECORD CARRIER, AND RECORD CARRIERS FOR USE THEREIN 审中-公开
    用于光记录介质的信息层上记录的字符，以及用于记录介质的方法和装置

    公开(公告)号：EP1571657A2

    公开(公告)日：2005-09-07

    申请号：EP05103725.7

    申请日：2000-07-11

    申请人： Koninklijke Philips Electronics N.V.

    发明人： DEKKER, Martijn, J. ,  VAN DEN BRINK, Hendrikus, B.

    IPC分类号： G11B7/00 ,  G11B7/125

    CPC分类号： G11B7/0062 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/126

    摘要： Methods and devices are described for writing an optical record carrier, in which a mark representing recorded data is written in a phase-change layer of a record carrier by a sequence of radiation pulses. A rear heating pulse 24 is introduced after a last write pulse 23, 26 and a front heating pulse 25 is introduced before the first write pulse 22,26. The power level 13 of the front heating pulse and the power level 15 of the rear heating pulse may be dependent on the length of the mark to be recorded and on properties of the record carrier. The method results in a reduced jitter of the marks written, especially when writing at high recording speeds.

    摘要翻译： 方法和装置被描述用于写入光学记录载体，其中代表记录数据的标记是通过辐射脉冲序列写在记录载体的相变层。 后部加热脉冲24由lastWrite脉冲23，26和前加热脉冲25被第一次写入脉冲之前22.26引入之后引入。 前加热脉冲和后加热脉冲的功率电平15的功率电平13可以依赖于要被记录的标记的长度和在记录载体的特性。 在标记的减少抖动的方法的结果写入，爱尤其当以高记录速度写入。

    CATHODE RAY TUBE COMPRISING AN ELECTRON GUN
    7.
    发明公开
    CATHODE RAY TUBE COMPRISING AN ELECTRON GUN 有权
    WITH A电子枪阴极射线管

    公开(公告)号：EP0995216A1

    公开(公告)日：2000-04-26

    申请号：EP99914704.4

    申请日：1999-04-29

    申请人： Koninklijke Philips Electronics N.V.

    发明人： DEKKER, Martijn, J. ,  NOORDERMEER, Leendert, J.

    IPC分类号： H01J29/50

    CPC分类号： H01J29/484

    摘要： A cathode ray tube comprises an electron gun with means for generating electron beams. External magnetic fields influence the electron beams and reduce the picture quality. An electrode of the gun includes a part made of a soft-magnetic material, which extends transversely to the electron beams, and two parts, situated to the left and to the right of the electron beams, which extend along said electron beams. Together these parts form a magnetic circuit. Preferably, these parts are strongly magnetically coupled, for example, because they are interconnected or very closely spaced. Interaction of the magnetic circuit formed by said three parts with an external magnetic field causes a Lorentz force on the electron beams. The resultant deviations in the paths of the electron beams largely compensate for the deviations in the paths of the electron beams caused by the effect of the external magnetic field between the electron gun and the display screen.