公开(公告)号：US06704064B1

公开(公告)日：2004-03-09

申请号：US09762404

申请日：2001-02-07

Applicant: Günter Gleim ,  Bernd Rekla

Inventor： Günter Gleim ,  Bernd Rekla

IPC: H04N928

CPC classification number: H04N9/28

Abstract: A convergence method for color television receiver comprises the steps of emitting a test signal from a control circuit to a first convergence channel to generate a current of a predetermined intensity in a convergence coil assigned thereto. The control circuit emitting a zero signal to the other convergence channels to generate zero current in the assigned convergence coils. Measuring and comparing with a reference potential a potential at a reference point of each convergence coil of channels driven by the zero signal. Generating a reference signal responsive to the comparison step b), for each case for the relevant convergence channel and coupling to the control circuit. Repeating steps a) to c) for each convergence channel, the convergence channels being driven in an alternating fashion one after another once in each case by a test signal.

Abstract translation: 彩色电视接收机的会聚方法包括以下步骤：将测试信号从控制电路发射到第一会聚通道，以在分配给其的会聚线圈中产生预定强度的电流。 控制电路向其他收敛通道发出零信号，以在所分配的会聚线圈中产生零电流。 测量和比较由零信号驱动的通道的每个会聚线圈的参考点处的参考电位的电位。 响应于比较步骤b）产生参考信号，针对相关会聚通道的每种情况并耦合到控制电路。 重复步骤a）至c）对于每个会聚通道，收敛通道以交替的方式一个接一个地被驱动，每次通过一个测试信号。

公开(公告)号：US06618076B1

公开(公告)日：2003-09-09

申请号：US09712747

申请日：2000-11-14

Applicant: Rahul Sukthankar ,  Robert Stockton ,  Matthew Mullin

Inventor： Rahul Sukthankar ,  Robert Stockton ,  Matthew Mullin

IPC: H04N928

CPC classification number: H04N9/3185 ,  H04N5/74 ,  H04N9/3194 ,  H04N17/04

Abstract: The present invention enables a user to automatically calibrate a projector-camera system to recover the mapping from a given point in the source (pre-projection) image and its corresponding point in the camera image, and vice versa. One or more calibration patterns are projected onto a flat surface with possibly unknown location and orientation by a projector with possibly unknown location, orientation and focal length. Images of these patterns are captured by a camera mounted at a possibly unknown location, orientation and with possibly unknown focal length. Parameters for mapping between the source image and the camera image are computed. The present invention can become an essential component of a projector-camera system, such as automatic keystone correction and vision-based control of computer systems.

Abstract translation: 本发明使得用户能够自动地校准投影仪 - 照相机系统以从源（预投影）图像中的给定点及其相机图像中的对应点恢复映射，反之亦然。 通过具有可能未知的位置，取向和焦距的投影仪将一个或多个校准图案投影到具有可能未知位置和取向的平坦表面上。 这些图案的图像由安装在可能未知位置，取向和可能未知的焦距的相机捕获。 计算源图像和相机图像之间的映射参数。 本发明可以成为投影仪 - 照相机系统的基本组成部分，例如计算机系统的自动梯形失真校正和基于视觉的控制。

公开(公告)号：US06198514B1

公开(公告)日：2001-03-06

申请号：US09031837

申请日：1998-02-27

Applicant: Kwang Wee Lee ,  Min Keat Wong

Inventor： Kwang Wee Lee ,  Min Keat Wong

IPC: H04N928

CPC classification number: H04N17/04

Abstract: Accurate measurements of the misconvergence of a color CRT are obtained using a monochrome CCD camera or the like and a common image. In accordance with one embodiment of the invention, color misconvergence of a color video display is determined using a monochrome camera, by capturing a monochrome image of an output display displayed on the color video display. For each of multiple different colors, information from the monochrome image is processed to identify a displayed feature or feature pattern of that color, and a position of that displayed feature or feature pattern is determined. Then a difference in position of a feature or feature pattern of a first color and a feature or feature pattern of a second color is determined. The effects of color crosstalk, video/image jitter, and lens distortion are all eliminated or minimized.

Abstract translation: 使用单色CCD照相机等和公共图像来获得彩色CRT的会聚失真的精确测量。 根据本发明的一个实施例，通过拍摄彩色视频显示器上显示的输出显示的单色图像，使用单色相机来确定彩色视频显示器的颜色失聚。 对于多种不同颜色中的每一种，处理来自单色图像的信息以识别该颜色的显示的特征或特征图案，并且确定该显示的特征或特征图案的位置。 然后确定第一颜色的特征或特征图案的位置与第二颜色的特征或特征图案之间的差异。 颜色串扰，视频/图像抖动和镜头失真的影响都被消除或最小化。

公开(公告)号：US06552755B1

公开(公告)日：2003-04-22

申请号：US09625408

申请日：2000-07-25

Applicant: Wan-Soo Kim ,  Chang-Gun Lee

Inventor： Wan-Soo Kim ,  Chang-Gun Lee

IPC: H04N928

CPC classification number: H04N17/02 ,  H04N9/28

Abstract: A method for measuring a convergence of color CRT uses a combination pattern among Red(R), Green(G) and Blue(B) colors on a white pattern when measuring convergence by using a color camera so that convergence is measured with a high degree of precision. The method sequentially generates two test patterns after mixing two colors chosen from among red(R), green(G), and blue(B) colors, e.g., mixtures of red(R)/blue(B) and green(G)/blue(B). Images are independently obtained of the two test patterns formed on the color CRT screen, and a signal conversion is performed based on each independently obtained pattern image to produce image information. The image information is stored and a convergence of the stored image information for each test pattern is calculated.

Abstract translation: 用于测量彩色CRT的会聚的方法在通过使用彩色照相机测量会聚时在白色图案上使用Red（R），Green（G）和Blue（B）颜色之中的组合图案，从而以高度 的精度。 在从红（R），绿（G）和蓝（B）颜色中选择的两种颜色混合后，顺序产生两种测试图案，例如红（R）/蓝（B）和绿（G）/ 蓝色（B）。 独立地获得形成在彩色CRT屏幕上的两个测试图案的图像，并且基于每个独立获得的图案图像执行信号转换以产生图像信息。 存储图像信息，并计算每个测试图案所存储的图像信息的收敛。

公开(公告)号：US06473139B1

公开(公告)日：2002-10-29

申请号：US09409491

申请日：1999-09-30

Applicant: John Barrett George

Inventor： John Barrett George

IPC: H04N928

CPC classification number: H04N9/28

Abstract: In a video display, correction data for a digital convergence arrangement are stored in a first non-volatile memory. During power turn on procedure, the correction data are read out of and stored in a volatile memory. During each deflection cycle, the data stored in the volatile memory are successively read out and applied to an auxiliary convergence winding. When a parity error is detected in the read out data, the data stored in a second non-volatile memory are automatically read out and transferred to the volatile memory and to the first non-volatile memory. The second non-volatile memory contains a duplicate of the correction data stored in the first non-volatile memory, during factory set up. The data in the second non-volatile memory are maintained parity error free. Thereby the parity error containing data stored in the first non-volatile memory are substituted with the data that are free of parity error, provided by the second, non-volatile memory.

Abstract translation: 在视频显示中，用于数字会聚装置的校正数据被存储在第一非易失性存储器中。 在电源打开过程中，校正数据被读出并存储在易失性存储器中。 在每个偏转周期期间，存储在易失性存储器中的数据被连续读出并应用于辅助会聚线圈。 当在读出的数据中检测到奇偶校验错误时，存储在第二非易失性存储器中的数据被自动读出并传送到易失性存储器和第一非易失性存储器。 在出厂设置期间，第二非易失性存储器包含存储在第一非易失性存储器中的校正数据的副本。 第二非易失性存储器中的数据保持奇偶校验错误。 由此，存储在第一非易失性存储器中的数据的奇偶校验错误由第二非易失性存储器提供的没有奇偶校验错误的数据代替。

公开(公告)号：US06281951B1

公开(公告)日：2001-08-28

申请号：US09231343

申请日：1999-01-13

Applicant: Dirk Carpentier ,  Günter Gleim ,  Friedrich Heizmann ,  Bernd Rekla

Inventor： Dirk Carpentier ,  Günter Gleim ,  Friedrich Heizmann ,  Bernd Rekla

IPC: H04N928

CPC classification number: H04N9/28

Abstract: The invention relates to a television receiver, in particular a projection television receiver having red, green and blue monochromatic picture tubes, the images of which are projected onto a picture screen. Each picture tube is assigned a correction device comprising a convergence circuit. The convergence circuit is assigned a memory in which correction values for the convergence correction of the three picture tubes are stored. In accordance with the correction values, the convergence circuit generates control signals, which are output to at least one correction coil where each correction coil has one driver circuit. A correction current is applied to the associated correction coil to correct image defects visible on each picture tube. The convergence circuit has control arrangement where the output signals coupled to the correction devices can be influenced in such a way that the same correction is always effected on the picture screen for a specific correction value, independently of the gain of the respective driver circuit. The invention also relates to a method for determining the control signal.

Abstract translation: 本发明涉及一种电视接收机，尤其涉及具有红，绿，蓝单色显像管的投影电视接收机，其图像被投影到画面上。 每个显像管被分配有包括会聚电路的校正装置。 会聚电路被分配存储器，其中存储三个显像管的会聚校正的校正值。 根据校正值，会聚电路产生控制信号，该控制信号被输出到每个校正线圈具有一个驱动电路的至少一个校正线圈。 校正电流被施加到相关联的校正线圈以校正每个显像管上可见的图像缺陷。 汇聚电路具有控制结构，其中耦合到校正装置的输出信号可以受到影响，使得与图像驱动电路的增益无关地，总是对图像屏幕进行与特定校正值相同的校正。 本发明还涉及一种用于确定控制信号的方法。

公开(公告)号：US06222593B1

公开(公告)日：2001-04-24

申请号：US08865723

申请日：1997-05-30

Applicant: Masaki Higurashi ,  Tatsuo Nagasaki ,  Yasuhiro Komiya ,  Koutatsu Oura ,  Ganglu Jing

Inventor： Masaki Higurashi ,  Tatsuo Nagasaki ,  Yasuhiro Komiya ,  Koutatsu Oura ,  Ganglu Jing

IPC: H04N928

CPC classification number: H04N17/045 ,  G03B37/04 ,  G06F3/1446 ,  G09G3/002 ,  G09G3/02 ,  H04N5/74 ,  H04N9/12 ,  H04N9/3147 ,  H04N9/3194 ,  H04N17/00 ,  H04N2005/745 ,  H04N2005/7466

Abstract: In a system according to the invention, fine image data 2 created and output by a personal computer 1 is input to an image processing/dividing section 4. The image processing/dividing section 4 determines, on the basis of parameters stored in a projector arrangement storage 5, which portion of the fine image data 2 is output to which projector, thereby performing a predetermined processing. Digital signals from the image processing/dividing section 4 are input to a plurality of D/A converters 6, respectively, where the signals are converted to analog signals. Images in the form of the analog signals are projected onto a screen 8 from projectors 7a-7d. Thus, the image projected on the screen 8 is constituted of accurately positioned images, and hence is a very fine image.

Abstract translation: 在根据本发明的系统中，由个人计算机1创建和输出的精细图像数据2被输入到图像处理/分割部分4.图像处理/分割部分4基于存储在投影仪装置中的参数来确定 存储器5，将精细图像数据2的哪一部分输出到哪个投影仪，从而执行预定处理。 来自图像处理/分割部分4的数字信号分别输入到多个D / A转换器6，其中信号被转换成模拟信号。 模拟信号形式的图像投影到投影仪7a-7d的屏幕8上。 因此，投影在屏幕8上的图像由精确定位的图像构成，因此是非常精细的图像。

公开(公告)号：US06538705B1

公开(公告)日：2003-03-25

申请号：US09698510

申请日：2000-10-26

Applicant: Masaki Higurashi ,  Tatsuo Nagasaki ,  Yasuhiro Komiya ,  Koutatsu Oura ,  Ken Ioka

Inventor： Masaki Higurashi ,  Tatsuo Nagasaki ,  Yasuhiro Komiya ,  Koutatsu Oura ,  Ken Ioka

IPC: H04N928

CPC classification number: H04N17/045 ,  G03B37/04 ,  G06F3/1446 ,  G09G3/002 ,  G09G3/02 ,  H04N5/74 ,  H04N9/12 ,  H04N9/3147 ,  H04N9/3194 ,  H04N17/00 ,  H04N2005/745 ,  H04N2005/7466

Abstract: In a system according to the invention, fine image data 2 created and output by a personal computer 1 is input to an image processing/dividing section 4. The image processing/dividing section 4 determines, on the basis of parameters stored in a projector arrangement storage 5, which portion of the fine image data 2 is output to which projector, thereby performing a predetermined processing. Digital signals from the image processing/dividing section 4 are input to a plurality of D/A converters 6, respectively, where the signals are converted to analog signals. Images in the form of the analog signals are projected onto a screen 8 from projectors 7a-7d. Thus, the image projected on the screen 8 is constituted of accurately positioned images, and hence is a very fine image.

Abstract translation: 在根据本发明的系统中，由个人计算机1创建和输出的精细图像数据2被输入到图像处理/分割部分4.图像处理/分割部分4基于存储在投影仪装置中的参数来确定 存储器5，将精细图像数据2的哪一部分输出到哪个投影仪，从而执行预定处理。 来自图像处理/分割部分4的数字信号分别输入到多个D / A转换器6，其中信号被转换成模拟信号。 模拟信号形式的图像投影到投影仪7a-7d的屏幕8上。 因此，投影在屏幕8上的图像由精确定位的图像构成，因此是非常精细的图像。

公开(公告)号：US06498629B1

公开(公告)日：2002-12-24

申请号：US09229801

申请日：1999-01-13

Applicant: Dirk Carpentier ,  Günter Gleim ,  Friedrich Heizmann ,  Bernd Rekla

Inventor： Dirk Carpentier ,  Günter Gleim ,  Friedrich Heizmann ,  Bernd Rekla

IPC: H04N928

CPC classification number: H04N5/12 ,  H04N5/74 ,  H04N9/31

Abstract: A Circuit for conditioning sync signals for devices for the line-by-line Display of video signals includes, a first input for horizontal sync signals (H1sync, H2sync), a second input for vertical sync signals (Vsync), and a delay stage. The delay stage outputs a signal (Vshift) which is delayed relative to the vertical sync signal (Vsync) by a specific delay time (reg). The circuit determines the timing of the horizontal sync signals (H1sync, H2sync) relative to the vertical sync signal (Vsync) and/or relative to the delayed signal (Vshift). The delay stage is designed in such a way that the delay time (reg) is adjustable.

Abstract translation: 用于调节用于逐行显示的设备的同步信号的电路视频信号的显示包括用于水平同步信号（H1sync，H2sync）的第一输入，用于垂直同步信号（Vsync）的第二输入和延迟级。 延迟级输出相对于垂直同步信号（Vsync）延迟特定延迟时间（reg）的信号（Vshift）。 该电路确定相对于垂直同步信号（Vsync）和/或相对于延迟信号（Vshift）的水平同步信号（H1sync，H2sync）的定时。 延迟阶段的设计使延迟时间（reg）可调。

公开(公告)号：US06310662B1

公开(公告)日：2001-10-30

申请号：US08490645

申请日：1995-06-15

Applicant: Shinichi Sunakawa ,  Kazutoshi Shimada ,  Eisaku Tatsumi ,  Shigeki Mori ,  Kazuhiro Matsubayashi ,  Takashi Harada ,  Katsuhiko Nagasaki ,  Ryoji Fukuda

Inventor： Shinichi Sunakawa ,  Kazutoshi Shimada ,  Eisaku Tatsumi ,  Shigeki Mori ,  Kazuhiro Matsubayashi ,  Takashi Harada ,  Katsuhiko Nagasaki ,  Ryoji Fukuda

IPC: H04N928

CPC classification number: H04N9/3185 ,  H04N5/7416 ,  H04N9/3194

Abstract: A display method and apparatus for displaying information by projecting a light onto an external projection plane is capable of detecting a deviation amount of a displayed image projected on the projection plane with respect to the display apparatus. Output image data is changed based on the detected deviation amount to offset a distortion of the displayed image, which is displayed using the changed output image data.

Abstract translation: 通过将光投射到外部投影平面来显示信息的显示方法和装置能够检测相对于显示装置投影在投影平面上的显示图像的偏移量。 输出图像数据基于检测到的偏差量而改变，以偏移使用改变的输出图像数据显示的显示图像的失真。