公开(公告)号：US6130505A

公开(公告)日：2000-10-10

申请号：US908623

申请日：1997-08-08

Applicant: James R. Webb ,  Ron C. Simpson

Inventor： James R. Webb ,  Ron C. Simpson

IPC: H01J9/44 ,  H04N9/29 ,  H01J29/54

CPC classification number: H04N9/29 ,  H01J9/44

Abstract: A system and method for dynamic adjustment of video images on a cathode ray tube in diverse geographic local magnetic fields. The present invention uses a CRT magnetometer that accurately senses differences in the strength and direction of a local magnetic field in three axes, i.e., the x, y, and z axes. The cathode ray tube includes a digital monitor board or monitor circuitry that has a processor and memory and is capable of retrieving correction factor data and magnetic correction data generated by a vision system. The digital monitor board receives CRT magnetometer signals and uses the signals with magnetic correction data to adjust the correction factor data to generate locale specific correction factor data for the sensed local magnetic field. The digital monitor board is capable of decoding the locale specific correction factor data using DACs, PDMs, PWMs, and interpolation engines to generate correction signals that are used to adjust the video image to correct for magnetically induced distortion.

Abstract translation: 用于在不同地理局部磁场中在阴极射线管上动态调整视频图像的系统和方法。 本发明使用CRT磁力计，其精确地感测三个轴，即x，y和z轴的局部磁场的强度和方向的差异。 阴极射线管包括具有处理器和存储器并且能够检索由视觉系统产生的校正因子数据和磁校正数据的数字监视器板或监视器电路。 数字监控板接收CRT磁力计信号，并使用具有磁校正数据的信号来调整校正因子数据，以生成感测到的局部磁场的特定区域校正因子数据。 数字监视器板能够使用DAC，PDM，PWM和内插引擎来解码特定区域校正因子数据，以产生用于调整视频图像以校正磁感应失真的校正信号。

公开(公告)号：US5969486A

公开(公告)日：1999-10-19

申请号：US908859

申请日：1997-08-08

Applicant: James R. Webb ,  Ron C. Simpson

Inventor： James R. Webb ,  Ron C. Simpson

IPC: H04N3/223 ,  H04N3/233 ,  H04N3/24 ,  H04N3/16

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。

公开(公告)号：US5825414A

公开(公告)日：1998-10-20

申请号：US585926

申请日：1996-01-16

Applicant: James R. Webb ,  Steven J. Lassman ,  Ron C. Simpson

Inventor： James R. Webb ,  Steven J. Lassman ,  Ron C. Simpson

IPC: G09G1/16 ,  H04N3/233 ,  H04N9/28 ,  H04N17/04 ,  H04N17/00 ,  H04N17/02

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.

公开(公告)号：US5739870A

公开(公告)日：1998-04-14

申请号：US613902

申请日：1996-03-11

Applicant: Ron C. Simpson

Inventor： Ron C. Simpson

IPC: H04N17/04 ,  H04N17/00

CPC classification number: H04N17/04

Abstract: A interpolation engine is disclosed that is capable of generating correction signals for segments of a monitor that form a gradient that eliminates any visual discontinuities between segments on the screen. In one embodiment, a starting count number for a distortion signal is stored in RAM, together with an increment rate signal that indicates the rate of change of the correction signal down the segment. In another embodiment, the increment rate signal is automatically calculated by the device by taking the difference between the starting count numbers for vertically adjacent segments. Since the number of rows in each segment is known and the difference between the starting count numbers of vertically adjacent segments is determined, the amount of correction for each row within a segment is calculated and provided as a correction signal. Hence, a correction signal can be provided for each row of pixels on a screen. This information can be integrated to form a smooth correction signal or need not be integrated for vertical geometry corrections since a correction signal is provided for each row. The present invention only requires a minimal amount of storage of data and is capable of providing correction signals for each row of pixels.

Abstract translation: 公开了一种内插引擎，其能够产生用于形成梯度的监视器的段的校正信号，该梯度消除了屏幕上的段之间的任何视觉不连续性。 在一个实施例中，用于失真信号的开始计数号码与指示校正信号沿着该段的改变速率的递增速率信号一起存储在RAM中。 在另一个实施例中，通过取垂直相邻段的起始计数号之间的差异，装置自动计算增量率信号。 由于每个段中的行数是已知的，并且确定垂直相邻段的起始计数之间的差异，所以计算段内每行的校正量并将其提供为校正信号。 因此，可以为屏幕上的每行像素提供校正信号。 由于为每行提供校正信号，所以可以将该信息集成以形成平滑校正信号或不需要集成用于垂直几何校正。 本发明仅需要最少量的数据存储，并且能够为每行像素提供校正信号。

公开(公告)号：US6014168A

公开(公告)日：2000-01-11

申请号：US638222

申请日：1996-04-26

Applicant: James R. Webb ,  Ron C. Simpson

Inventor： James R. Webb ,  Ron C. Simpson

IPC: H01J9/44 ,  H04N17/04 ,  H04N17/00

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。

公开(公告)号：US5896170A

公开(公告)日：1999-04-20

申请号：US674394

申请日：1996-07-02

Applicant: James R. Webb ,  Ron C. Simpson

Inventor： James R. Webb ,  Ron C. Simpson

IPC: H04N17/04 ,  H04N17/00

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。

公开(公告)号：US06437829B1

公开(公告)日：2002-08-20

申请号：US08936675

申请日：1997-09-24

Applicant: James R. Webb ,  Ron C. Simpson

Inventor： James R. Webb ,  Ron C. Simpson

IPC: H04N708

CPC classification number: G09G1/167 ,  G09G1/165 ,  G09G2320/08 ,  G09G2370/04 ,  H04N17/02 ,  H04N17/04

Abstract: Dynamic adjustment techniques for aligning video images in cathode ray tube (CRT) devices are disclosed. A host computer stores correction factor data and video image data in video graphics controller RAM. The host computer processes and transmits the correction factor data, representative of the cathode ray tube distortion characteristics, to the CRT device during the retrace time of the electron beam and video image data during the trace time. The correction factor data may be generated by a vision system, a gain matrix table, interpolation engine or manual methods. Circuitry, within the CRT device, for separating the correction factor data from the video signal is disclosed along with the methods and apparatus used to decode correction data. Data can also be transferred from the monitor back to the host computer over the video connector.

Abstract translation: 公开了用于对准阴极射线管（CRT）器件中的视频图像的动态调整技术。 主机将校正因子数据和视频图像数据存储在视频图形控制器RAM中。 在跟踪时间期间，主计算机在电子束和视频图像数据的回扫时间期间处理并发送代表阴极射线管失真特性的校正因子数据到CRT器件。 校正因子数据可以由视觉系统，增益矩阵表，内插引擎或手动方法产生。 在用于将校正因子数据与视频信号分离的CRT装置内的电路与用于解码校正数据的方法和装置一起被公开。 数据也可以通过视频连接器从监视器传输回主机。

公开(公告)号：US5504521A

公开(公告)日：1996-04-02

申请号：US258393

申请日：1994-06-13

Applicant: James R. Webb ,  Steven J. Lassman ,  Ron C. Simpson

Inventor： James R. Webb ,  Steven J. Lassman ,  Ron C. Simpson

IPC: G09G1/16 ,  H04N3/233 ,  H04N9/28 ,  H04N17/04 ,  H04N17/00 ,  H04N9/73 ,  H04N17/02

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。

公开(公告)号：US5216504A

公开(公告)日：1993-06-01

申请号：US766646

申请日：1991-09-25

Applicant: James R. Webb ,  Ron C. Simpson ,  Howard M. Pogoda

Inventor： James R. Webb ,  Ron C. Simpson ,  Howard M. Pogoda

IPC: H01J9/44 ,  H04N17/00 ,  H04N17/04

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。

公开(公告)号：US06285397B1

公开(公告)日：2001-09-04

申请号：US08986257

申请日：1997-12-05

Applicant: James R. Webb ,  Ron C. Simpson

Inventor： James R. Webb ,  Ron C. Simpson

IPC: H04N1700

CPC classification number: G09G1/165 ,  G09G2320/0693 ,  G09G2370/04 ,  H04N17/045 ,  Y10S345/904

Abstract: A system for automatically aligning video images on display devices such as cathode ray tube (CRT) monitors that use the processor and memory of a host computer to implement the alignment process. The system uses a host computer processor and previously generated correction factor data, representative of specific display distortion characteristics, to produce driver signals necessary to affect the alignment of video images on a CRT screen. The previously stored correction factor data may be retrieved from a characterization module within the display device or from any other convenient storage location. The correction factor data is processed by the host computer to produce correction control data which is transmitted, over a bi-directional serial connector, or a video connector, to the display device where the data is read by correction and driver circuitry. The specialized correction and driver circuitry set static decoders to generate the required correction signal for each distortion parameter at each location of the display screen. Correction factor data for dynamic distortion parameters may be stored in monitor memory where the data is used by waveform generators to produce dynamic correction signals. The plurality of correction signals are integrated, filtered, and summed by the CRT correction and driver circuitry before being applied to the CRT control circuits to align the video image. The present invention allows new correction signals to be quickly calculated by the host computer and applied to the CRT whenever a display parameter, such as resolution, frequency, color depth, etc. is changed. The host processor may generate the new data by using a gain matrix table, or interpolation techniques, as well as employing standard transformation equations.

Abstract translation: 用于在诸如使用主计算机的处理器和存储器的显示设备（例如阴极射线管（CRT））监视器上自动对准视频图像以实现对准过程的系统。 该系统使用主计算机处理器和先前产生的代表特定显示失真特性的校正因子数据来产生影响CRT屏幕上的视频图像对准所需的驱动器信号。 可以从显示装置内的表征模块或任何其他方便的存储位置检索先前存储的校正因子数据。 校正因子数据由主计算机处理以产生通过双向串行连接器或视频连接器传输到校正和驱动器电路读取数据的显示装置的校正控制数据。 专门的校正和驱动电路设置静态解码器，以在显示屏幕的每个位置处为每个失真参数生成所需的校正信号。 用于动态失真参数的校正因子数据可以存储在监视器存储器中，其中数据由波形发生器使用以产生动态校正信号。 在施加到CRT控制电路以对准视频图像之前，多个校正信号被CRT校正和驱动器电路集成，滤波和相加。 本发明允许由主机快速计算出新的校正信号，并且当诸如分辨率，频率，颜色深度等的显示参数改变时，应用于CRT。 主处理器可以通过使用增益矩阵表或内插技术以及采用标准变换方程来生成新数据。