Beam landing correction apparatus for a cathode ray tube
    1.
    发明授权
    Beam landing correction apparatus for a cathode ray tube 失效
    用于阴极射线管的光束着陆校正装置

    公开(公告)号:US5583401A

    公开(公告)日:1996-12-10

    申请号:US474519

    申请日:1995-06-07

    IPC分类号: H01J29/00 H04N9/29 H01J29/56

    摘要: By providing a plurality of landing correction coil pairs each comprised of a correction coil in the x-axis direction and a correction coil in the y-axis direction at four peripheral corner portions of the cathode ray tube (CRT) and by controlling the direction and magnitude of the resultant vector of the correction magnetic fields generated by the x-axis direction correction coil and the y-axis direction correction coil, the influence of the geomagnetism is canceled to allow a high-accuracy landing correction to be achieved. Furthermore, by detecting the chromaticity and luminance information on the screen to obtain a mislanding quantity and by forming a correction current corresponding to the quantity through the aforementioned correction means to perform an automatic correction to allow a quantitative landing correction to be performed correctly in a short time.

    摘要翻译: 通过在阴极射线管(CRT)的四个周角部分设置多个层叠校正线圈对,每个层叠校正线圈对由x轴方向的校正线圈和y轴方向的校正线圈组成,并且通过控制方向和 由x轴方向校正线圈和y轴方向校正线圈产生的校正磁场的合成矢量的大小抵消了地磁的影响,从而能够实现高精度的着陆校正。 此外,通过在屏幕上检测色度和亮度信息以获得误落数量,并且通过形成与通过上述校正装置的量相对应的校正电流来执行自动校正,以允许在短时间内正确地执行定量着陆校正 时间。

    Convergence correction apparatus for use in a color display
    2.
    发明授权
    Convergence correction apparatus for use in a color display 失效
    用于彩色显示的收敛校正装置

    公开(公告)号:US5398083A

    公开(公告)日:1995-03-14

    申请号:US142684

    申请日:1993-10-26

    IPC分类号: H04N3/22 H04N9/28 H04N17/00

    CPC分类号: H04N9/28

    摘要: A signal generating apparatus comprises: a scanning-line number detector (2) for detecting the number of scanning lines with receipt of a sync signal; a convergence memory (3) for storing convergence correction data; an on-screen display memory (5) for storing on-screen display data; an interpolator (4) for performing vertical interpolation of output data derived from the memories (3, 5) according to the detection signal derived from the scanning-line number detector (2); and a frame memory (6) for successively reading data elements corresponding to the individual scanning lines interpolated by the interpolator (4). The apparatus detects the number of scanning lines and generates a correction signal and a character signal through vertical processing of convergence correction data and on-screen character data.

    摘要翻译: 信号发生装置包括:扫描线号码检测器(2),用于通过接收同步信号来检测扫描行数; 收敛存储器(3),用于存储会聚校正数据; 用于存储屏幕显示数据的屏幕显示存储器(5); 根据从扫描线号码检测器(2)导出的检测信号,对从存储器(3,5)导出的输出数据进行垂直插值的内插器(4); 以及帧存储器(6),用于连续地读取与由内插器(4)内插的各个扫描线对应的数据元素。 该装置检测扫描线的数量,并通过收敛校正数据和屏幕上字符数据的垂直处理产生校正信号和字符信号。

    Visual image signal processing apparatus using arithmetic operation on
brightness reference signal overlaid in fly-back period of input visual
image signal
    3.
    发明授权
    Visual image signal processing apparatus using arithmetic operation on brightness reference signal overlaid in fly-back period of input visual image signal 失效
    视觉图像信号处理装置,对输入的视觉信号的反复期间叠加的亮度参照信号进行运算

    公开(公告)号:US5808699A

    公开(公告)日:1998-09-15

    申请号:US688305

    申请日:1996-07-20

    IPC分类号: H04N5/18 H04N5/202 H04N5/57

    CPC分类号: H04N5/18 H04N5/202 H04N5/57

    摘要: A visual image signal processing apparatus includes: an overlaying unit for overlaying a brightness reference signal at a predetermined position in a fly-back period of an input visual image signal; a first clamping unit for clamping an output from the overlaying unit at a predetermined clamping voltage; a detecting unit for applying an output from the first clamping unit to a driving electrode of a cathode ray tube and for detecting a beam current flowing based on the brightness reference signal overlaid in the input visual image signal; and a second clamping unit for controlling the predetermined clamp voltage based on the beam current detected by the detecting unit.

    摘要翻译: 视觉图像信号处理装置包括:重叠单元,用于在输入视觉信号的回扫周期中将亮度参考信号叠加在预定位置; 第一夹紧单元,用于以预定的钳位电压钳位来自覆盖单元的输出; 检测单元,用于将来自第一夹持单元的输出施加到阴极射线管的驱动电极,并用于基于重叠在输入视觉信号中的亮度参考信号来检测流过的束流; 以及第二夹持单元,用于基于由检测单元检测到的束电流来控制预定的钳位电压。

    Image correction apparatus using a displayed test signal
    4.
    发明授权
    Image correction apparatus using a displayed test signal 失效
    图像校正装置使用显示的测试信号

    公开(公告)号:US5532765A

    公开(公告)日:1996-07-02

    申请号:US210306

    申请日:1994-03-17

    摘要: An apparatus for correcting images includes: a test signal generator for generating a test signal; a display device for displaying the test signal in a region on a display screen; an imaging device for imaging the test signal displayed on the display screen in a scanning direction so as to produce an image signal having a rising linear portion and a falling linear portion along the scanning direction; a position calculator for calculating a position of a centroid of the image signal for each of R, G and B colors, based on the rising linear portion and the falling linear portion; an error detector for detecting an amount of error between the detected positions of the centroids for R, G and B colors; a correction circuit for correcting a convergence and a geometric distortion for the region, based on the amount of error.

    摘要翻译: 用于校正图像的装置包括:用于产生测试信号的测试信号发生器; 显示装置,用于在显示屏幕上的区域中显示测试信号; 成像装置,用于在扫描方向上对显示屏上显示的测试信号进行成像,以产生沿着扫描方向具有上升线性部分和下降直线部分的图像信号; 一个位置计算器,用于基于上升的线性部分和下降的线性部分计算R,G和B颜色中的每一个的图像信号的质心的位置; 用于检测针对R,G和B颜色的质心的检测位置之间的误差量的误差检测器; 校正电路,用于基于误差量校正该区域的会聚和几何失真。

    Video signal processor for controlling the brightness and contrast of a
display device
    5.
    发明授权
    Video signal processor for controlling the brightness and contrast of a display device 失效
    用于控制显示装置的亮度和对比度的视频信号处理器

    公开(公告)号:US5504538A

    公开(公告)日:1996-04-02

    申请号:US364853

    申请日:1994-12-27

    IPC分类号: H04N5/59 H04N5/18

    CPC分类号: H04N5/59

    摘要: A video signal processor for controlling a displayed image on a CRT having a cathode electrode and a grid electrode includes a generator for generating a brightness reference signal, an adder for adding the brightness reference signal to a black level in a blanking period of an input video signal. The added brightness reference signal is applied to the cathode electrode though a current detector for detecting a current of the added brightness reference signal. A current level signal produced from the current detector is used for determining and clamping the peak of a control voltage applied to the grid electrode such that a voltage difference between a peak of the added brightness reference signal and the peak of the control voltage is maintained constant.

    摘要翻译: 用于控制CRT上显示的图像的视频信号处理器具有阴极电极和栅格电极,包括用于产生亮度参考信号的发生器,用于在输入视频的消隐期间将亮度参考信号加到黑电平的加法器 信号。 通过电流检测器将附加的亮度参考信号施加到阴极电极,用于检测所添加的亮度参考信号的电流。 使用从电流检测器产生的电流信号来确定和钳位施加到栅电极的控制电压的峰值,使得添加的亮度参考信号的峰值与控制电压的峰值之间的电压差保持恒定 。

    Convergence correction apparatus
    6.
    发明授权
    Convergence correction apparatus 失效
    收敛校正装置

    公开(公告)号:US5473224A

    公开(公告)日:1995-12-05

    申请号:US141327

    申请日:1993-10-21

    CPC分类号: H04N9/28 H04N3/233

    摘要: A convergence correction apparatus comprises: a scanning waveform generating section (6) for generating a scanning waveform in synchronization with a sync signal for scanning an electron beam in a cathode ray tube (8); an amplitude control section (7) for controlling a raster size according to a scanning waveform generated by the scanning waveform generating means (6) with receipt of a control signal; and a convergence correction waveform generating section (5) for generating a correction waveform for performing a convergence correction according to the scanning waveform and the control signal. Therefore, the apparatus can automatically follow signal sources having different input scanning frequencies and different aspect ratios thereby to obviate the need for complicated adjustment in each mode and remarkably reducing the time necessary for the adjustment.

    摘要翻译: 一种会聚校正装置,包括:扫描波形生成部,用于与用于扫描阴极射线管(8)中的电子束的同步信号同步地产生扫描波形; 用于根据由扫描波形发生装置(6)产生的扫描波形控制光栅尺寸的幅度控制部分(7),接收控制信号; 以及会聚校正波形生成部(5),用于根据扫描波形和控制信号生成用于进行会聚校正的校正波形。 因此,该装置可以自动跟踪具有不同输入扫描频率和不同宽高比的信号源,从而避免了对每种模式的复杂调整的需要,并显着缩短了调整所需的时间。

    Device and method for recording data to optical disk using recording pulse with corrected edge position
    7.
    发明授权
    Device and method for recording data to optical disk using recording pulse with corrected edge position 有权
    使用具有校正边缘位置的记录脉冲将数据记录到光盘的装置和方法

    公开(公告)号:US07190651B2

    公开(公告)日:2007-03-13

    申请号:US10787594

    申请日:2004-02-27

    IPC分类号: G11B20/10

    摘要: The present invention provides a device and method for an optical disc such as a DVD which can keep proper edge position of a recording pulse to record data of high quality without depending on a fluctuation in a supply voltage and a fluctuation in a temperature. The optical disc device according to the present invention comprises a laser driver for driving a laser to record data on an optical disc, a recording pulse generator for generating a recording pulse signal by using a predetermined delay circuit, to control the switching of the laser power of the laser driver, a delay amount measuring section for measuring the delay amount of a delay circuit in the recording pulse generator, and a recording pulse position correction section for correcting the predetermined edge position of the recording pulse based on the result of the measurement.

    摘要翻译: 本发明提供了一种用于诸如DVD的光盘的装置和方法,其可以保持记录脉冲的适当边缘位置以记录高质量的数据,而不依赖于电源电压的波动和温度的波动。 根据本发明的光盘装置包括用于驱动激光以在光盘上记录数据的激光驱动器,用于通过使用预定延迟电路产生记录脉冲信号的记录脉冲发生器来控制激光功率的切换 用于测量记录脉冲发生器中的延迟电路的延迟量的延迟量测量部分,以及用于基于测量结果校正记录脉冲的预定边缘位置的记录脉冲位置校正部分。

    Device and method for recording data to optical disc using recording pulse with corrected edge position
    8.
    发明授权
    Device and method for recording data to optical disc using recording pulse with corrected edge position 失效
    使用具有校正边缘位置的记录脉冲将数据记录到光盘的装置和方法

    公开(公告)号:US07136342B2

    公开(公告)日:2006-11-14

    申请号:US10787592

    申请日:2004-02-27

    IPC分类号: G11B20/10

    摘要: The present invention provides a device and method for an optical disc such as a DVD which can keep proper edge position of a recording pulse to record data of high quality without depending on a fluctuation in a supply voltage and a fluctuation in a temperature. The optical disc device according to the present invention comprises a laser driver for driving a laser to record data on an optical disc, a recording pulse generator for generating a recording pulse signal by using a predetermined delay circuit, to control the switching of the laser power of the laser driver, a delay amount measuring section for measuring the delay amount of a delay circuit in the recording pulse generator, and a recording pulse position correction section for correcting the predetermined edge position of the recording pulse based on the result of the measurement.

    摘要翻译: 本发明提供了一种用于诸如DVD的光盘的装置和方法,其可以保持记录脉冲的适当边缘位置以记录高质量的数据,而不依赖于电源电压的波动和温度的波动。 根据本发明的光盘装置包括用于驱动激光以在光盘上记录数据的激光驱动器,用于通过使用预定延迟电路产生记录脉冲信号的记录脉冲发生器来控制激光功率的切换 用于测量记录脉冲发生器中的延迟电路的延迟量的延迟量测量部分,以及用于基于测量结果校正记录脉冲的预定边缘位置的记录脉冲位置校正部分。

    Device and method for recording data to optical disk using recording pulse with corrected edge position

    公开(公告)号:US06721255B1

    公开(公告)日:2004-04-13

    申请号:US09427544

    申请日:1999-10-27

    IPC分类号: G11B576

    摘要: The present invention provides a device and method for an optical disc such as a DVD which can keep proper edge position of a recording pulse to record data of high quality without depending on a fluctuation in a supply voltage and a fluctuation in a temperature. The optical disc device according to the present invention comprises a laser driver for driving a laser to record data on an optical disc, a recording pulse generator for generating a recording pulse signal by using a predetermined delay circuit, to control the switching of the laser power of the laser driver, a delay amount measuring section for measuring the delay amount of a delay circuit in the recording pulse generator, and a recording pulse position correction section for correcting the predetermined edge position of the recording pulse based on the result of the measurement.

    Device and method for recording data to optical disk using recording pulse with corrected edge position
    10.
    发明授权
    Device and method for recording data to optical disk using recording pulse with corrected edge position 失效
    使用具有校正边缘位置的记录脉冲将数据记录到光盘的装置和方法

    公开(公告)号:US07139228B2

    公开(公告)日:2006-11-21

    申请号:US10787590

    申请日:2004-02-27

    IPC分类号: G11B11/03

    摘要: The present invention provides a device and method for an optical disc such as a DVD which can keep proper edge position of a recording pulse to record data of high quality without depending on a fluctuation in a supply voltage and a fluctuation in a temperature. The optical disc device according to the present invention comprises a laser driver for driving a laser to record data on an optical disc, a recording pulse generator for generating a recording pulse signal by using a predetermined delay circuit, to control the switching of the laser power of the laser driver, a delay amount measuring section for measuring the delay amount of a delay circuit in the recording pulse generator, and a recording pulse position correction section for correcting the predetermined edge position of the recording pulse based on the result of the measurement.

    摘要翻译: 本发明提供了一种用于诸如DVD的光盘的装置和方法,其可以保持记录脉冲的适当边缘位置以记录高质量的数据,而不依赖于电源电压的波动和温度的波动。 根据本发明的光盘装置包括用于驱动激光以在光盘上记录数据的激光驱动器,用于通过使用预定延迟电路产生记录脉冲信号的记录脉冲发生器来控制激光功率的切换 用于测量记录脉冲发生器中的延迟电路的延迟量的延迟量测量部分,以及用于基于测量结果校正记录脉冲的预定边缘位置的记录脉冲位置校正部分。