Method for setting an operating parameter a peripheral ic and device for carrying out said method
    1.
    发明申请
    Method for setting an operating parameter a peripheral ic and device for carrying out said method 有权
    用于设置操作参数的方法,用于执行所述方法的外围设备ic和设备

    公开(公告)号:US20050096755A1

    公开(公告)日:2005-05-05

    申请号:US10500205

    申请日:2002-12-14

    CPC分类号: H04L41/082

    摘要: The invention relates to a method for setting an operating parameter in a peripheral IC. In this method, the operating parameter is transmitted from a central IC via a bus connection to the peripheral IC. The method is characterized in that the operating parameter is initially buffered in a preregister in the peripheral IC, and in that the buffered operating parameter is transferred into a working register only if a transfer signal is sent from the central IC via the bus connection. This method has the advantage that, for example in the case of rapidly changing receive conditions in a send/receive unit, adjustment of the send or receive gain setting is very flexible, and it is easy to avoid an incorrect setting due to a detected signal fluctuation. The invention also relates to a device for carrying out said method.

    摘要翻译: 本发明涉及用于设置外围IC中的操作参数的方法。 在该方法中,操作参数通过总线连接从中央IC发送到外围IC。 该方法的特征在于,操作参数最初被缓冲在外围IC中的预寄存器中,并且仅当通过总线连接从中央IC发送传送信号时,将缓冲的操作参数传送到工作寄存器。 该方法的优点在于,例如在发送/接收单元中的接收条件的快速变化的情况下,发送或接收增益设置的调整是非常灵活的,并且由于检测到的信号容易避免错误的设置 波动。 本发明还涉及一种用于执行所述方法的装置。

    Conditioning synchronization signals based on line-by-line display of video signals
    2.
    发明授权
    Conditioning synchronization signals based on line-by-line display of video signals 失效
    基于视频信号逐行显示的调节同步信号

    公开(公告)号:US06498629B1

    公开(公告)日:2002-12-24

    申请号:US09229801

    申请日:1999-01-13

    IPC分类号: H04N928

    CPC分类号: H04N5/12 H04N5/74 H04N9/31

    摘要: 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.

    摘要翻译: 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。

    Method and device for convergence correction in a television receiver
    3.
    发明授权
    Method and device for convergence correction in a television receiver 失效
    电视接收机中会聚校正的方法和装置

    公开(公告)号:US06295100B1

    公开(公告)日:2001-09-25

    申请号:US09231349

    申请日:1999-01-13

    IPC分类号: H04N928

    CPC分类号: H04N9/28 H04N9/31

    摘要: A method for convergence correction in a television receiver and to a television receiver, in particular a projection television receiver having in each case one monochromatic picture tube for the three primary colours, red, green and blue, improves the quality of convergence correction. Each picture tube is assigned a correction device which comprises 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 output signals, which are output to a correction device, which in each case comprise at least one correction coil and, for each correction coil, one driver circuit. A correction current is applied to the associated correction coil in order to correct image defects of a picture tube. The convergence circuit also has control means for influencing the output signals output to the correction devices 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.

    摘要翻译: 一种用于电视接收机和电视接收机的收敛校正方法,特别是投影电视接收机,在每种情况下都具有用于三原色的红色,绿色和蓝色的一个单色显像管,从而提高了会聚校正的质量。 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,会聚电路产生输出到校正装置的输出信号,校正装置在每种情况下都包括至少一个校正线圈,并且对于每个校正线圈,产生一个驱动器电路。 校正电流被施加到相关联的校正线圈,以便校正显像管的图像缺陷。 汇聚电路还具有用于影响输出到校正装置的输出信号的控制装置,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。

    Distortion correction system with switchable digital filter
    4.
    发明授权
    Distortion correction system with switchable digital filter 有权
    具有可切换数字滤波器的失真校正系统

    公开(公告)号:US06292235B1

    公开(公告)日:2001-09-18

    申请号:US09408359

    申请日:1999-09-29

    IPC分类号: H04N322

    CPC分类号: H04N9/31 H04N3/2335 H04N3/27

    摘要: A switchable digital filter interpolates distortion correction values. The distortion correction values together with interpolated distortion correction values are supplied as an output. Proper operation of the digital filter is disturbed by transient signals occurring during horizontal retrace. The digital output is converted to an analog convergence correction signal. The digital to analog converter has an operating frequency and generates a transient signal during horizontal retrace as the operating frequency increases due to an increased horizontal scanning rate. A low pass filter receives the analog convergence correction signal and generates an analog deflection signal. An auxiliary deflection coil is driven by the analog deflection signal. The digital filter is switched off during the horizontal retrace. The digital filter is thus protected from disturbance by the transient signal and the digital to analog converter is protected from exceeding a maximum operating frequency.

    摘要翻译: 可切换数字滤波器内插失真校正值。 作为输出,提供失真校正值和内插失真校正值。 数字滤波器的正确操作受到水平回扫期间发生的瞬态信号的干扰。 数字输出转换为模拟会聚校正信号。 数字到模拟转换器具有工作频率,并且在水平扫描速率增加时工作频率增加时,在水平回扫期间产生瞬态信号。 低通滤波器接收模拟会聚校正信号并产生模拟偏转信号。 辅助偏转线圈由模拟偏转信号驱动。 数字滤波器在水平回扫期间关闭。 数字滤波器因此受到瞬态信号的干扰,防止数模转换器超过最大工作频率。

    Method and apparatus for obtaining correction values for video lines of
a video frame
    5.
    发明授权
    Method and apparatus for obtaining correction values for video lines of a video frame 失效
    用于获得视频帧的视频行的校正值的方法和装置

    公开(公告)号:US6108054A

    公开(公告)日:2000-08-22

    申请号:US896641

    申请日:1997-07-18

    IPC分类号: H04N9/28 H04N7/00

    CPC分类号: H04N9/28

    摘要: A method and apparatus for obtaining correction values for convergence setting in video projection devices includes calculating the correction values for the individual video lines at least in part by interpolation between correction interpolation point values. The correction interpolation point values are in this case distributed in the form of a grid over the screen area of the video projection device. During the calculation of correction values for the video lines of a first field of the video frame, a respective set of two intermediate or final values for the interpolation is calculated, which set is applicable to neighbouring lines in different video fields, but in each case only one intermediate or final value is used for the convergence correction in the current video line. As a result, optimal convergence correction can be set for each video line without a high memory outlay and without high computing complexity.

    摘要翻译: 用于获得视频投影设备中的会聚设置的校正值的方法和装置包括至少部分地通过校正插值点值之间的内插来计算各视频行的校正值。 在这种情况下,校正插值点值以视频投影设备的屏幕区域上的网格的形式分布。 在计算视频帧的第一场的视频行的校正值期间,计算用于内插的两组中间值或最终值的相应集合,该集合适用于不同视频场中的相邻行,但是在每种情况下 当前视频行中只有一个中间值或最终值用于会聚校正。 因此,可以为每个视频线路设置最佳的收敛校正,而不需要高的存储器支出,并且没有高的计算复杂度。

    Circuit arrangement for genrating square-shaped signals
    6.
    发明授权
    Circuit arrangement for genrating square-shaped signals 失效
    用于产生方形信号的电路布置

    公开(公告)号:US5394023A

    公开(公告)日:1995-02-28

    申请号:US61359

    申请日:1993-05-14

    IPC分类号: H03K3/0233 H03K5/01 H03K5/153

    CPC分类号: H03K3/02337

    摘要: A first input signal has successive zero amplitude crossings. A first comparator generates a first bilevel output signal responsive to the first input signal. The first comparator has a hysteresis characteristic which is switched on at each said zero crossing of the first input signal and switched off prior to each occurrence of the next following zero crossing. A second input signal has successive zero amplitude crossings and is displaced in phase relative to the first input signal. A second comparator generates a second bilevel output signal responsive to the second input signal. The hysteresis characteristic is switched on by level transitions of the first bilevel output signal and switched off by level transitions of the second bilevel output signal. The first and second input signals may be sinusoidal. The hysteresis characteristic may controlled by first and second flip/flops, which are set by the first bilevel output signal and reset by the second bilevel output signal.

    摘要翻译: 第一输入信号具有连续的零幅度交叉。 第一比较器响应于第一输入信号产生第一双电平输出信号。 第一比较器具有在第一输入信号的每个所述过零点处接通的滞后特性,并且在下一个跟随过零点的每次出现之前被关断。 第二输入信号具有连续的零幅度交叉并且相对于第一输入信号相位移位。 第二比较器响应于第二输入信号产生第二双电平输出信号。 滞后特性通过第一个双电平输出信号的电平转换而被接通,并由第二个双电平输出信号的电平转换关断。 第一和第二输入信号可以是正弦的。 滞后特性可由第一和第二触发器控制,第一和第二触发器由第一双电平输出信号设置并由第二双电平输出信号复位。

    Process and device for adjusting pictures
    7.
    发明授权
    Process and device for adjusting pictures 失效
    用于调整图像的过程和设备

    公开(公告)号:US5237246A

    公开(公告)日:1993-08-17

    申请号:US889713

    申请日:1992-05-28

    IPC分类号: H04N3/22 H04N5/74 H04N9/28

    CPC分类号: H04N9/28 H04N3/22 H04N5/74

    摘要: A system for adjusting the position and size of a picture generated by deflecting a light source in response to a deflection current and displayed in a picture area larger than the picture includes sensors for sensing the picture arranged outside the picture and within the picture area. First and second differential amplifier both have an inverting and noninverting input terminal. A deflection voltage proportional to the deflection current is applied to the noninverting input terminal of the first differential amplifier and to inverting input terminal of the second differential amplifier. A first reference voltage is applied to the inverting input terminal of the first differential amplifier to produce a positive correction pulse in accordance with the difference between the deflection voltage and the first reference voltage. A second reference voltage is applied to the noninverting input terminal of the second differential amplifier to produce a negative correction pulse in accordance with the difference between the deflection voltage and the second reference voltage. A correction signal generator is responsive to the correction pulses and provides correction signals to the deflection circuit.

    摘要翻译: 用于调整通过响应偏转电流偏转光源并显示在比图像大的图像区域中显示的图像的位置和尺寸的系统包括用于感测布置在图像外部和图像区域内的图像的传感器。 第一和第二差分放大器都具有反相和同相输入端。 与偏转电流成比例的偏转电压被施加到第一差分放大器的非反相输入端子和第二差分放大器的反相输入端子。 第一参考电压被施加到第一差分放大器的反相输入端,以根据偏转电压和第一参考电压之间的差产生正校正脉冲。 第二参考电压被施加到第二差分放大器的非反相输入端子,以根据偏转电压和第二参考电压之间的差产生负校正脉冲。 校正信号发生器响应校正脉冲并向偏转电路提供校正信号。

    Display correction waveform generator for multiple scanning frequencies
    8.
    发明授权
    Display correction waveform generator for multiple scanning frequencies 失效
    用于多个扫描频率的显示校正波形发生器

    公开(公告)号:US06774585B2

    公开(公告)日:2004-08-10

    申请号:US10168603

    申请日:2002-11-04

    IPC分类号: G09G104

    CPC分类号: H04N3/27 H04N3/26

    摘要: A method for generating display correction waveforms for a CRT display comprises the steps of selecting one of a plurality of trace portions for forming part of a correction waveform, the trace portions having different average values. Completing each of the correction waveform by combining each selected trace portion with a respective retrace portion such that all completed correction waveforms have a predetermined average value. The correction waveforms may have vertical and/or horizontal rates.

    摘要翻译: 一种用于产生CRT显示器的显示校正波形的方法包括以下步骤:选择多个迹线部分之一以形成校正波形的一部分,迹线部分具有不同的平均值。 通过将每个所选择的跟踪部分与相应的回扫部分组合来完成每个校正波形,使得所有完成的校正波形具有预定的平均值。 校正波形可以具有垂直和/或水平速率。

    Auxiliary deflection winding driver disabling arrangement
    9.
    发明授权
    Auxiliary deflection winding driver disabling arrangement 失效
    辅助偏转线圈驱动器禁用布置

    公开(公告)号:US06369780B2

    公开(公告)日:2002-04-09

    申请号:US09409492

    申请日:1999-09-30

    IPC分类号: G09G108

    CPC分类号: H04N9/28

    摘要: 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, an output and/or an input of a convergence amplifier is actively disabled to prevent a disturbance of a screen of the cathode ray tube.

    摘要翻译: 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。 当在读出数据中检测到奇偶校验错误时,积极地禁止会聚放大器的输出和/或输入,以防止阴极射线管的屏幕的干扰。

    Grid correction circuit for TV sets
    10.
    发明授权
    Grid correction circuit for TV sets 失效
    电视机电网校正电路

    公开(公告)号:US5283504A

    公开(公告)日:1994-02-01

    申请号:US920360

    申请日:1992-07-29

    CPC分类号: H04N3/22

    摘要: A grid correction circuit for a television receiver includes a first memory for storing correction values for correcting the deflection current of the television receiver. A second memory perodically provides a test signal to a correction coil to correct the deflection of the television receiver. A switch periodically selectively connects the first memory to the correction coil and a correction current flows through the correction coil. The switch also periodically connects the second memory to the correction coil and a test current flows through the correction coil. An impedance is responsive to the correction coil and produces a correction voltage and a test voltage in response to the correction current and the test current respectively. A comparator receives the test voltage and compares the test voltage to a reference voltage and provides an output voltage having a first level when the test voltage is below the reference voltage and a second level when the test voltage is above the reference voltage. A processor receives the output voltage and changes the correction voltage to incrementally reciprocate above and below the reference voltage by a preslected increment to maintain the correction voltage at substantially the same level as the reference voltage over a long time period.

    摘要翻译: 用于电视接收机的格栅校正电路包括用于存储用于校正电视接收机的偏转电流的校正值的第一存储器。 第二存储器向校正线圈提供测试信号以校正电视接收机的偏转。 开关周期性选择性地将第一存储器连接到校正线圈,并且校正电流流过校正线圈。 开关还周期性地将第二存储器连接到校正线圈,并且测试电流流过校正线圈。 阻抗响应于校正线圈并分别响应于校正电流和测试电流产生校正电压和测试电压。 比较器接收测试电压并将测试电压与参考电压进行比较,并且当测试电压低于参考电压时提供具有第一电平的输出电压,并且当测试电压高于参考电压时提供第二电平。 处理器接收输出电压并改变校正电压以在参考电压之上和之下递增地往复运动一个预设的增量,以将校正电压维持在与参考电压相当长的时间段基本相同的水平。