Convergence control system for multiple vertical formats
    1.
    发明授权
    Convergence control system for multiple vertical formats 失效
    用于多种垂直格式的收敛控制系统

    公开(公告)号:US5161002A

    公开(公告)日:1992-11-03

    申请号:US807420

    申请日:1991-12-13

    CPC classification number: H04N9/28

    Abstract: Convergence correction waveforms are generated for multiple vertical formats. One of a number of vertical formats is selected for displaying a video signal. The vertical formats differ by respective vertical scanning rates, respective vertical scanning heights, or both. A set of convergence correction values corresponding to a plurality of raster locations is stored for each of the different vertical scanning heights. An interpolation control value is stored for each of the vertical scanning frequencies. An interpolator is responsive to different ones of the control values for generating a different set of intermediate convergence correction values for each of the vertical scanning frequencies, from each of the sets of stored convergence correction values. The interpolator generates the intermediate convergence correction values between horizontally and vertically spaced ones of the raster locations.

    Abstract translation: 为多种垂直格式生成收敛校正波形。 选择多个垂直格式之一用于显示视频信号。 垂直格式各自垂直扫描速率,垂直扫描高度或两者都有差异。 针对不同垂直扫描高度的每一个存储对应于多个光栅位置的一组会聚校正值。 为每个垂直扫描频率存储插值控制值。 内插器响应于不同的控制值,用于从存储的会聚校正值的集合中的每一个生成针对每个垂直扫描频率的不同的中间会聚校正值集合。 内插器在水平和垂直间隔的光栅位置之间产生中间的会聚校正值。

    Multiple display formats for letterbox signal
    2.
    发明授权
    Multiple display formats for letterbox signal 失效
    LETTERBOX信号的多个显示格式

    公开(公告)号:US5136398A

    公开(公告)日:1992-08-04

    申请号:US694328

    申请日:1991-05-01

    CPC classification number: H04N9/28

    Abstract: A television apparatus comprises a video display having a wide format display ratio, for example approximately 16:9. A deflection circuit generates first and second selectable rasters having a common horizontal scan width corresponding to the display but having first and second vertical heights respectively, for example nominal and overscanned vertical heights. A control circuit selects one of the first and second rasters for displaying pictures from wide format display ratio video sources and conventional format display ratio video sources respectively, for example 16:9 and 4:3. A picture from the wide format display ratio video source is substantially uncropped and a picture from the conventional format display ratio video source is expanded and cropped. One of the vertical formats provides substantially no image aspect ratio distortion of the pictures as displayed. The other one of the vertical formats provides substantially no cropping of the pictures as displayed. The relative amounts of image aspect ratio distortion and cropping of the pictures as displayed are substantially inversely proportional. One of the vertical formats provides substantially no image aspect ratio distortion and substantially no cropping of the active picture portion as displayed, when the video source is in letterbox format. A convergence control system can be provided which automatically adjusts to the selected vertical format.

    Abstract translation: 电视设备包括具有宽格式显示比例的视频显示器,例如大约16:9。 偏转电路产生具有与显示器相对应的共同的水平扫描宽度的第一和第二可选择光栅,分别具有第一和第二垂直高度,例如标称和过扫描垂直高度。 控制电路分别从宽格式显示比视频源和常规格式显示比视频源分别选择第一和第二光栅中的一个用于显示图像,例如16:9和4:3。 来自宽格式显示比视频源的图像基本上未被裁剪,并且来自常规格式显示比视频源的图像被扩展和裁剪。 垂直格式之一基本上不显示图像的图像宽高比失真。 另一种垂直格式基本上不显示所显示的图片的裁剪。 显示的图像的图像宽高比失真和裁剪的相对量大体上成反比。 当视频源处于信箱格式时,垂直格式之一基本上不提供图像宽高比失真并且基本上不显示所显示的活动图像部分的裁剪。 可以提供会议控制系统,其自动地调整为所选择的垂直格式。

    System for making raster location adjustments on a multi-color display
screen
    3.
    发明授权
    System for making raster location adjustments on a multi-color display screen 失效
    用于在多色显示屏幕上制作放大镜位置调整的系统

    公开(公告)号:US5214499A

    公开(公告)日:1993-05-25

    申请号:US857405

    申请日:1992-03-25

    CPC classification number: H04N9/28

    Abstract: A system for making location adjustments on a display screen raster having horizontal and vertical lines crossing at crossing points includes a cursor which is moveable to the crossing points. The visibility of the cursor is enhanced because the horizontal and vertical lines are brighter than the cursor. The visibility of the cursor can be further enhanced by making the brightness of the cursor adjustable.

    Abstract translation: 用于在具有在交叉点处交叉的水平和垂直线的显示屏幕光栅上进行位置调整的系统包括可移动到交叉点的光标。 光标的可视性得到增强,因为水平和垂直线条比光标更亮。 通过使光标的亮度可调,可以进一步增强光标的可视性。

    Grid-correction device for a TV set
    4.
    发明授权
    Grid-correction device for a TV set 失效
    电视机的格栅校正装置

    公开(公告)号:US5260785A

    公开(公告)日:1993-11-09

    申请号:US889711

    申请日:1992-05-28

    CPC classification number: H04N9/31 H04N17/04 H04N9/28

    Abstract: A cursor for correcting the locations of points formed by the crossing horizontal and vertical lines of a grid arranged on the screen of a television receiver. The screen has a portion illuminated by a picture and a dark portion unilluminated by the picture. The grid also has at least one line of dark-points parallel to each edge of the picture and lying outside of the picture. The cursor is configured and dimensioned to extend into the picture when the cursor covers one of the dark-points.

    Abstract translation: 用于校正由布置在电视接收机的屏幕上的格栅的交叉水平和垂直线形成的点的位置的光标。 屏幕具有由图片照亮的部分和由图片未照亮的暗部分。 网格还具有平行于图片的每个边缘的至少一行暗点,并且位于图片之外。 当光标覆盖其中一个暗点时,光标的配置和尺寸将扩展到图像中。

    Circuit for the power supply of a plurality of power amplifiers
    5.
    发明授权
    Circuit for the power supply of a plurality of power amplifiers 失效
    用于多个功率放大器的电源的电路

    公开(公告)号:US5784127A

    公开(公告)日:1998-07-21

    申请号:US686754

    申请日:1996-07-25

    CPC classification number: H03F3/211 H03F1/0233

    Abstract: When a power supply unit supplies power to a plurality of power amplifiers, an appreciable power loss is produced in the power supply unit and in the amplifiers. According to the present invention, the output voltage of the power supply unit is regulated so that it is high enough at any instant for the amplifier which at that instant has an output signal having the largest amplitude.

    Abstract translation: 当电源单元向多个功率放大器供电时,在电源单元和放大器中产生明显的功率损耗。 根据本发明,调节电源单元的输出电压,使得在任何瞬间对于放大器来说足够高,在那时,放大器具有最大振幅的输出信号。

    Grid correction device for a television set
    6.
    发明授权
    Grid correction device for a television set 失效
    用于电视机的电网校正装置

    公开(公告)号:US5379062A

    公开(公告)日:1995-01-03

    申请号:US7290

    申请日:1993-01-21

    CPC classification number: H04N9/28 H04N17/04

    Abstract: A method of collecting the spactial positions of crossing points of the lines in the grid on the visible portion of the screen of a television receiver used in different modes of operation includes the steps of storing a first set of correction values for each of the crossing points. The first correction values define the spactial positions of the correction points for all modes of operation of the television receiver. Additional correction values are stored for each mode of operation. The additional correction values are generated during an overscan period and during the scanning of an initialization line which is positioned outside the visible portion of the screen and compensate for displacement of the crossing points induced by tolerances in the tube. The first correction values and the additional correction values are simultaneously applied to the deflection current of the television tube while the visible portion of the screen is scanned.

    Abstract translation: 收集在不同操作模式下使用的电视接收机的屏幕的可视部分上的网格中的线的交叉点的拼接位置的方法包括以下步骤:为每个交叉点存储第一组校正值 。 第一校正值定义了电视接收机的所有操作模式的校正点的脉冲位置。 为每种操作模式存储附加的校正值。 附加的校正值是在过扫描周期期间和在位于屏幕的可见部分之外的初始化线的扫描期间产生的,并补偿由管中的公差引起的交叉点的位移。 当屏幕的可见部分被扫描时,第一校正值和附加校正值同时施加到电视管的偏转电流。

    Geometry and convergence correction for projection television apparatus
    7.
    发明授权
    Geometry and convergence correction for projection television apparatus 失效
    投影电视机的几何和会聚校正

    公开(公告)号:US5521646A

    公开(公告)日:1996-05-28

    申请号:US287695

    申请日:1994-08-09

    CPC classification number: H04N9/31

    Abstract: A projection television apparatus has three monochromatic picture tubes disposed in a planar orientation defining a central picture tube and two outer picture tubes. Each of the picture tubes includes a deflection unit responsive to deflection currents and raster correction signals for vertical and horizontal deflection. A control circuit, including a signal generator, supplies vertical and horizontal raster correction signals formulated for the central picture tube to all three of the picture tubes and supplies additional vertical and horizontal raster correction signals formulated for the two outer picture tubes respectively to the two outer picture tubes, respectively. Conductive paths for the formulated for the central picture tube correction signals can include variable resistors for effecting small changes in signal amplitude.

    Abstract translation: 投影电视设备具有三个单色显像管,其设置在限定中央显像管和两个外显象管的平面取向上。 每个显像管包括响应于偏转电流的偏转单元和用于垂直和水平偏转的光栅校正信号。 包括信号发生器的控制电路向所有三个显像管提供为中央显像管制定的垂直和水平光栅校正信号,并且为两个外显像管分别提供为两个外显像管制定的附加垂直和水平光栅校正信号 显像管。 用于中央显像管校正信号的导电路径可以包括用于实现信号幅度的小变化的可变电阻器。

    Process for positioning a light beam on a picture area
    8.
    发明授权
    Process for positioning a light beam on a picture area 失效
    在图像区域定位光束的过程

    公开(公告)号:US5235173A

    公开(公告)日:1993-08-10

    申请号:US882142

    申请日:1992-05-13

    CPC classification number: H04N3/22 H04N9/28

    Abstract: A method of positioning a light beam on a picture surface relative to a light sensor located on the picture surface includes the step of completely illuminating the sensor with the light beam while the sensor is exposed to ambient light and recording a first output signal. A second output signal is recorded when the sensor is exposed to only ambient light. The first and second output signals are provided to an evaluation circuit to calculate a positioning signal having a value equal to a selected percentage of the difference between the first and second output signals. The light beam is positioned relative to the sensor to expose the sensor to a percentage of the light beam which is equal to the selected percentage of the difference between the first and second signals

    Abstract translation: 相对于位于图像表面上的光传感器将光束定位在图像表面上的方法包括当传感器暴露于环境光并记录第一输出信号时,用光束完全照亮传感器的步骤。 当传感器仅暴露于环境光时,记录第二个输出信号。 第一和第二输出信号被提供给评估电路以计算具有等于第一和第二输出信号之间的差的所选百分比的值的定位信号。 光束相对于传感器定位,以将传感器暴露于光束的百分比,其等于第一和第二信号之间的差的选定百分比

    Method for correcting the convergence in a projection television receiver
    9.
    发明授权
    Method for correcting the convergence in a projection television receiver 失效
    用于校正投影电视接收机中的会聚的方法

    公开(公告)号:US6111616A

    公开(公告)日:2000-08-29

    申请号:US18200

    申请日:1998-02-03

    CPC classification number: H04N9/28

    Abstract: A set of coarse or initial convergence correction values for a model line of projection television receivers is defined in digital form prior to production using a fine grid or grating pattern. The set of coarse convergence correction values is digitally stored in all the receivers of the model line. A receiver-specific set of fine or final convergence correction values is defined in digital form for each receiver in the model line using a coarse grid or grating pattern. In each receiver, the receiver-specific set of fine or final convergence correction values is combined with the stored set of coarse convergence correction values. Convergence correction during subsequent operation of each receiver is based on the combined convergence correction values. Some of the coarse and fine convergence correction values can be located horizontally outside of the visible picture area of the receivers.

    Abstract translation: 投影电视接收机的模型线的一组粗略或初始会聚校正值在使用精细格栅或光栅图案的制作之前以数字形式定义。 粗略收敛校正值的集合被数字地存储在模型行的所有接收器中。 使用粗网格或光栅图案,模型行中的每个接收器以数字形式定义接收器特定的精细或最终会聚校正值集合。 在每个接收机中,接收机特定的精细或最终会聚校正值集合与所存储的粗略会聚校正值集合。 在每个接收机的后续操作期间的收敛校正基于组合的收敛校正值。 一些粗略和精细的会聚校正值可以位于接收器的可视图像区域的水平外侧。

    Electron beam deflection apparatus using an auxiliary deflection coil
and a compensation coil
    10.
    发明授权
    Electron beam deflection apparatus using an auxiliary deflection coil and a compensation coil 失效
    使用辅助偏转线圈和补偿线圈的电子束偏转装置

    公开(公告)号:US6097163A

    公开(公告)日:2000-08-01

    申请号:US24507

    申请日:1998-02-17

    CPC classification number: H01J29/76 H01J29/003 H01J2229/0046

    Abstract: An apparatus for electron beam deflection in a cathode ray tube, in particular in a picture tube of a television set, comprises a deflection coil arrangement for horizontal and vertical deflection of the electron beam, an auxiliary deflection coil arrangement, by means of which the electron beam can be influenced for the purpose of convergence correction, and a compensation coil arrangement for producing a magnetic compensation field. The compensation coil arrangement is arranged and designed such that the compensation field essentially compensates for the stray magnetic field of the deflection coil arrangement in the physical region of the auxiliary deflection coil arrangement.

    Abstract translation: 一种用于阴极射线管,特别是电视机的显像管中的电子束偏转的装置,包括用于电子束的水平和垂直偏转的偏转线圈装置,辅助偏转线圈装置,通过该装置,电子束 可以影响会聚校正的目的的光束,以及用于产生磁补偿场的补偿线圈装置。 补偿线圈装置被布置和设计成使得补偿场基本上补偿在辅助偏转线圈装置的物理区域中的偏转线圈装置的杂散磁场。

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