Method and apparatus for making corrections in a video monitor during
horizontal scan
    11.
    发明授权
    Method and apparatus for making corrections in a video monitor during horizontal scan 失效
    在水平扫描期间在视频监视器中进行校正的方法和装置

    公开(公告)号:US5504521A

    公开(公告)日:1996-04-02

    申请号:US258393

    申请日:1994-06-13

    CPC classification number: G09G1/165 H04N17/04 H04N3/2335 H04N9/28 G09G2320/08

    Abstract: A circuit within a video monitor for making corrections during horizontal scan includes a data storage device containing information relating to a selected display parameter, an integrator receptive of the stored information and adapted to produce an integrated signal therefrom, and an amplifier receptive of the integrated signal for supplying signals to the video monitor based on the integrated signal. The information supplied from the data storage device to the integrator is encoded in a pulse density modulated wave form via a tri-state gate and a one-shot timer. The information stored in the data storage device is stored in bytes, each byte containing a "sign bit" and a plurality of data bits.

    Abstract translation: 用于在水平扫描期间进行校正的视频监视器内的电路包括数据存储装置,其包含与选择的显示参数相关的信息,接收所存储的信息的积分器,并适于产生积分信号;以及接收集成信号的放大器 用于根据积分信号向视频监视器提供信号。 从数据存储装置向积分器提供的信息通过三态门和单触发定时器以脉冲密度调制波形编码。 存储在数据存储装置中的信息以字节存储,每个字节包含“符号位”和多个数据位。

    Automatic precision video monitor alignment system
    12.
    发明授权
    Automatic precision video monitor alignment system 失效
    自动精密视频监控器对准系统

    公开(公告)号:US5216504A

    公开(公告)日:1993-06-01

    申请号:US766646

    申请日:1991-09-25

    CPC classification number: H01J9/44 H04N17/04

    Abstract: An automatic precision video monitor alignment and calibration system is described which functions to precisely align all of the adjustable display characteristics of a video monitor to a high degree of precision. This alignment system can function in an automated calibration mode wherein it is independent of human input and automatically performs a series of alignment/calibration operations to precisely adjust all of the display characteristics of the video monitor in a fraction of the time required by a person to manually align the video monitor. The alignment system includes a digital control circuit located within the video monitor to precisely set and maintain each of the monitor display characteristics. The values maintained by this control circuit can be input by a person, or set automatically by a computer controlled display alignment system. The system of the present invention uses a single camera and a color analyzer to make all the measurements necessary to automatically align and calibrate a video monitor. The measurements are then used to make the adjustments, via the digital control circuit, necessary for alignment and/or calibration. A calibration computer coupled with a video coprocessor subsystem accomplish all adjustments to the monitor automatically, without the need for human intervention.

    Abstract translation: 描述了一种自动精密视频监视器对准和校准系统,其用于将视频监视器的所有可调显示特性精确地对准到高精度。 该对准系统可以在自动校准模式下工作,其中它独立于人的输入,并且自动执行一系列对准/校准操作,以在人的所需时间的一小部分中精确地调整视频监视器的所有显示特性 手动对准视频监视器。 对准系统包括位于视频监视器内的数字控制电路,以精确地设置和维护每个监视器显示特性。 由该控制电路维护的值可由人输入,或由计算机控制的显示器对准系统自动设定。 本发明的系统使用单个相机和颜色分析器来进行必要的所有测量以自动对准和校准视频监视器。 然后测量值用于通过数字控制电路进行校准和/或校准所需的调整。 与视频协处理器子系统耦合的校准计算机自动完成对监视器的所有调整,而不需要人为干预。

    Method and apparatus for providing a dynamic rotational alignment of a cathode ray tube raster
    13.
    发明授权
    Method and apparatus for providing a dynamic rotational alignment of a cathode ray tube raster 失效
    用于提供阴极射线管光栅的动态旋转对准的方法和装置

    公开(公告)号:US07262563B2

    公开(公告)日:2007-08-28

    申请号:US10707314

    申请日:2003-12-04

    Applicant: James R. Webb

    Inventor: James R. Webb

    CPC classification number: H04N3/22

    Abstract: A method and apparatus used to step and correct the position of raster lines in a sinusoidal or zig-zag deflection system. By combining the magnetic flux generated with a rotation “twister” coil and a vertical deflection coil, scan lines can be uniformly spaced and separated nearly to their ends. Accordingly, the magnetic flux generated with the twister coil is adjusted going in the left to right direction then reversed in polarity and readjusted while returning from right to left. It is this controlled twister flux that combines with the linear vertical deflection flux to straighten and then step each scan line to produce an aligned raster.

    Abstract translation: 用于在正弦或曲折偏转系统中步进和校正光栅线的位置的方法和装置。 通过组合产生的旋转“扭转器”线圈和垂直偏转线圈的磁通,扫描线可以均匀地间隔开并几乎分开到它们的端部。 因此,由扭转线圈产生的磁通量在左右方向上被调节,然后反向极性,并从右向左返回。 这种受控的扭转器通量与线性垂直偏转通量相结合,以使其拉直,然后逐步扫描每条扫描线以产生对准的光栅。

    Detecting horizontal blanking time in cathode ray tube devices
    14.
    发明授权
    Detecting horizontal blanking time in cathode ray tube devices 失效
    检测阴极射线管装置中的水平消隐时间

    公开(公告)号:US5969486A

    公开(公告)日:1999-10-19

    申请号:US908859

    申请日:1997-08-08

    CPC classification number: H04N3/223 H04N3/233

    Abstract: An apparatus and method are disclosed for generating timing pulses to control various functions in a video monitor including the switching of video amplifiers in cathode ray tube (CRT) devices, the control of the phase and frequency of phase locked loops, etc. Unlike previous methods, where switching is timed and controlled by monitoring the retrace voltage level, the system of the present invention monitors the change in direction of current in the retrace tuning capacitor. Monitoring the retrace capacitor current, provides an extremely accurate method for timing in horizontal deflection circuits. The apparatus of the present the invention comprises a small bead inductor placed in the current path of a horizontal retrace capacitor within the horizontal deflection circuit of the cathode ray tube device. Measuring the voltage across the bead inductor allows a very precise monitoring of the current through the retrace tuning capacitor. By designing the size of the bead inductor as disclosed, precise electrical pulses can be generated and detected during the retrace time of the CRT electron beam. These precise pulses are then used to generate accurate control signals for use within the CRT device. The invention also discloses an apparatus and method that minimizes left side ringing distortion in cathode ray tube video displays. Left side ringing is reduced due to the addition of the bead inductor to the horizontal deflection circuit, which lowers the stray resonant frequency within the horizontal deflection circuit.

    Abstract translation: 公开了一种用于产生定时脉冲以控制视频监视器中的各种功能的装置和方法,包括阴极射线管(CRT)装置中的视频放大器的切换,锁相环的相位和频率的控制等。与先前的方法不同 通过监视回扫电压电平对开关进行定时和控制,本发明的系统监视回扫调谐电容器中的电流方向的变化。 监控回扫电容器电流,为水平偏转电路中的定时提供了非常准确的方法。 本发明的装置包括放置在阴极射线管装置的水平偏转电路内的水平回扫电容器的电流通路中的小珠电感器。 测量珠电感两端的电压可以非常精确地监测通过回扫调谐电容的电流。 通过设计如所公开的珠电感器的尺寸,可以在CRT电子束的回扫时间期间产生和检测精确的电脉冲。 然后使用这些精确的脉冲来产生用于CRT装置内的精确控制信号。 本发明还公开了一种使阴极射线管视频显示器中的左侧振铃失真最小化的装置和方法。 由于向水平偏转电路添加了珠子电感器,所以左侧振铃减小,这降低了水平偏转电路内的杂散谐振频率。

    Method and apparatus for providing a dynamic rotational alignment of a cathode ray tube raster
    17.
    发明授权
    Method and apparatus for providing a dynamic rotational alignment of a cathode ray tube raster 失效
    用于提供阴极射线管光栅的动态旋转对准的方法和装置

    公开(公告)号:US06686707B1

    公开(公告)日:2004-02-03

    申请号:US10248660

    申请日:2003-02-05

    Applicant: James R. Webb

    Inventor: James R. Webb

    CPC classification number: H04N3/22

    Abstract: A method and apparatus used to step and correct the position of raster lines in a sinusoidal or zig-zag deflection system. By combining the magnetic flux generated with a rotation “twister” coil and a vertical deflection coil, scan lines can be uniformly spaced and separated nearly to their ends. Accordingly, the magnetic flux generated with the twister coil is adjusted going in the left to right direction then reversed in polarity and readjusted while returning from right to left. It is this controlled twister flux that combines with the linear vertical deflection flux to straighten and then step each scan line to produce an aligned raster.

    Abstract translation: 用于在正弦或曲折偏转系统中步进和校正光栅线的位置的方法和装置。 通过组合产生的旋转“扭转器”线圈和垂直偏转线圈的磁通,扫描线可以均匀地间隔开并几乎分开到它们的端部。 因此,由扭转线圈产生的磁通量在左右方向上被调节,然后反向极性,并从右向左返回。 这种受控的扭转器通量与线性垂直偏转通量相结合,以使其拉直,然后逐步扫描每条扫描线以产生对准的光栅。

    Screen mapping of a cathode ray tube
    18.
    发明授权
    Screen mapping of a cathode ray tube 失效
    阴极射线管的屏幕映射

    公开(公告)号:US6014168A

    公开(公告)日:2000-01-11

    申请号:US638222

    申请日:1996-04-26

    CPC classification number: H04N17/04 H01J9/44

    Abstract: A system for generating correction factor data that is representative of the distortion characteristics of a cathode ray tube. The correction factor data is stored with a cathode ray tube to allow later alignment of a video signal, or can be provided on a storage medium or on a network. Distortion data, and resultant correction factor data is generated for a series of discrete physical locations on the cathode ray tube screen. In this manner, the entire screen surface can be utilized to align a video image. Maximum correctable distortion data is also generated in accordance with the present invention to provide exit criteria for cathode ray tube manufacturers. The exit criteria is based upon maximum correction factor data that can be generated to correct distortions. A characterization module is provided that can be coupled to cathode ray tube coils that stores the correction factor data or an identification number for the cathode ray tube that can be used to retrieve the correction factor data from any desired source such as CD ROMS, a LAN, a database coupled to a WAN, or the Internet, etc. Interpolation techniques can be used to generate correction factor data for any desired number of interpolation points based upon correction factor data provided for a lesser number of characterization locations.

    Abstract translation: 一种用于产生代表阴极射线管的失真特性的校正因子数据的系统。 校正因子数据与阴极射线管一起存储以允许视频信号的稍后对准,或者可以提供在存储介质上或网络上。 对阴极射线管屏幕上的一系列离散物理位置产生失真数据和合成校正因子数据。 以这种方式,可以利用整个屏幕表面来对准视频图像。 根据本发明也产生最大可校正失真数据,以提供阴极射线管制造商的出口标准。 退出标准基于可以产生以校正失真的最大校正因子数据。 提供了可以耦合到阴极射线管线圈的表征模块,其存储校正因子数据或用于阴极射线管的识别号码,其可用于从任何所需的源(例如CD ROMS,LAN)检索校正因子数据 ,耦合到WAN或因特网等的数据库。可以使用插值技术来基于为较少数量的表征位置提供的校正因子数据来生成任何所需数量的插值点的校正因子数据。

    Dynamic alignment of cathode ray tube rasters
    19.
    发明授权
    Dynamic alignment of cathode ray tube rasters 失效
    阴极射线管光栅的动态对准

    公开(公告)号:US5896170A

    公开(公告)日:1999-04-20

    申请号:US674394

    申请日:1996-07-02

    CPC classification number: H04N17/04

    Abstract: A system for synchronous alignment of cathode ray tube (CRT) rasters by application of time variable rotation driver signals to the CRT rotation coil during trace of the raster. The system may be implemented by either digital or analog means of measuring and storing cathode ray tube raster distortion data as rotational correction factor data. The rotational correction factor data is used by device circuitry to generate and apply the required time variable rotation driver signals, to the CRT rotation coil, to effect the desired CRT raster alignment.

    Abstract translation: 一种用于在光栅跟踪期间通过应用时间可变旋转驱动器信号到CRT旋转线圈来同步对准阴极射线管(CRT)光栅的系统。 该系统可以通过测量和存储阴极射线管光栅失真数据的数字或模拟装置来实现,作为旋转校正因子数据。 旋转校正因子数据由装置电路用于产生并将所需的时间可变旋转驱动器信号施加到CRT旋转线圈,以实现期望的CRT光栅对准。

    Voltage regulator for pulsed voltage power supplies
    20.
    发明授权
    Voltage regulator for pulsed voltage power supplies 失效
    用于脉冲电压电源的稳压器

    公开(公告)号:US4614899A

    公开(公告)日:1986-09-30

    申请号:US512152

    申请日:1983-07-08

    CPC classification number: H04N3/19

    Abstract: A voltage regulator for flyback-type high voltage supplies having a supplementary energy storage transformer with its secondary interconnected in series with the primary of the conventional flyback transformer, a control circuit for sensing (a) the generation of the conventional flyback pulse, (b) a reference voltage, and (c) a feedback voltage signal appearing at the output of the conventional flyback transformer and a switch for selectively applying energy to the primary of the supplemental energy storage transformer. The aforesaid switch being activated whenever the feedback voltage is less than the reference voltage and said switch being activated earlier in time as the aforesaid difference becomes greater. Just after the occurrence of the flyback pulse, the switch is opened to permit energy in the energy storage transformer to be placed on the primary of the flyback transformer so that it is added with the flyback pulse to maintain the resultant voltage at the output of the secondary conventional flyback transformer at a regulated value.

    Abstract translation: 一种用于反激式高压电源的电压调节器,具有辅助能量存储变压器,其辅助互连与常规反激式变压器的主要串联,用于感测(a)常规反激脉冲的产生的控制电路,(b) 参考电压,以及(c)出现在常规反激式变压器的输出处的反馈电压信号和用于选择性地将能量提供给补充能量存储变压器的初级的开关。 只要反馈电压小于参考电压,上述开关被激活,并且所述开关在上述差异变大的同时更早地被激活。 恰好在反激脉冲发生之后,开关被打开以允许能量存储变压器中的能量被放置在回扫变压器的主要部分上,使得它被添加回扫脉冲,以将合成电压维持在 次级常规反激式变压器处于规定值。

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