公开(公告)号：US4268857A

公开(公告)日：1981-05-19

申请号：US103092

申请日：1979-12-12

申请人： Katsuo Isono ,  Tomoyoshi Imayasu

发明人： Katsuo Isono ,  Tomoyoshi Imayasu

IPC分类号： H03L7/081 ,  H04N9/24

CPC分类号： H04N9/24

摘要： In a beam index color television receiver of the type having a cathode ray tube which is provided with beam-excitable color elements and index elements disposed on a display screen of the cathode ray tube and which are scanned by an electron beam; color switching is controlled by an index signal generator, comprised of a photo-detector and band-pass filter, for generating a periodic index signal as the index elements are scanned by the beam, color gates which sequentially gate respective color control signals individually to modulate the electron beam as the beam scans the color elements, a gating signal circuit including a phase-locked loop which generates sequential gating signals at a frequency synchronized with the frequency of the periodic index signal and a gate pulse generator which supplies the gating signals in sequence to the color gates to control the latter so as to gate the respective color control signals, and a phase-controlling circuit for imparting a phase shift to the gating signals supplied to the gating pulse generator to compensate for an inherent time delay caused by the photo-detector, band-pass filter and phase-locked loop. Such phase shift may be imparted by a phase shifter connected between the phase-locked loop and the gate pulse generator or at a voltage controlled oscillator in the phase-locked loop itself.

摘要翻译： 在一种具有阴极射线管的光束折射彩色电视接收机中，该阴极射线管设置有可激发色彩元素和设置在阴极射线管的显示屏上并由电子束扫描的折射元件; 颜色切换由索引信号发生器控制，索引信号发生器由光电检测器和带通滤波器组成，用于当光束扫描索引元件时产生周期性索引信号，色栅分别顺序地对相应的颜色控制信号进行选通以调制 作为光束的电子束扫描彩色元件，门控信号电路包括锁相环，其以与周期性索引信号的频率同步的频率产生顺序的门控信号，以及门脉冲发生器，顺序地提供门控信号 到彩色门以控制后者，以便对相应的颜色控制信号进行门控;以及相位控制电路，用于对提供给选通脉冲发生器的选通信号进行相移，以补偿由照片引起的固有时间延迟 检测器，带通滤波器和锁相环。 这种相移可以由连接在锁相环和门脉冲发生器之间的相移器或锁相环本身中的压控振荡器赋予。

公开(公告)号：US4352047A

公开(公告)日：1982-09-28

申请号：US159633

申请日：1980-06-16

申请人： Tomoyoshi Imayasu ,  Katsuo Isono

发明人： Tomoyoshi Imayasu ,  Katsuo Isono

IPC分类号： H04N3/237 ,  H04N9/24

CPC分类号： H04N3/237 ,  H04N9/24

摘要： A side pincushion correcting circuit is provided in a color television receiver of the type including a cathode ray tube having an index stripe disposed on a screen scanned by a cathode beam and a detector for detecting the scanning of the index stripe by the cathode beam and producing a pulse signal as a result of such detecting. The side pincushion correcting circuit comprises a pulse forming circuit for generating a reference signal in correspondence to the pulse signal from the detector, a phase comparator for comparing the phase of the reference signal to that of a control pulse, such as the horizontal flyback pulse, associated with the commencement of scanning in the horizontal direction, and providing an output signal whose magnitude is proportional to the phase difference between the reference signal and the control pulse, and a horizontal deflection circuit supplied with the output signal from the phase comparator for controlling the scanning of the cathode beam in the sense to correct for side pincushion distortion.

摘要翻译： 一种侧枕形校正电路设置在彩色电视接收机中，该彩色电视接收机包括阴极射线管，该阴极射线管具有设置在由阴极射线束扫描的屏幕上的折射条，以及检测器，用于通过阴极射线检测折射条的扫描并产生 作为这种检测的结果的脉冲信号。 侧枕形校正电路包括：脉冲形成电路，用于产生与来自检测器的脉冲信号相对应的参考信号;相位比较器，用于将参考信号的相位与诸如水平回扫脉冲的控制脉冲的相位进行比较; 与在水平方向上的扫描开始相关联，并且提供其幅度与参考信号和控制脉冲之间的相位差成比例的输出信号，和提供有来自相位比较器的输出信号的水平偏转电路，用于控制 在正确的方向扫描阴极射束，以纠正侧枕形失真。

公开(公告)号：US4261010A

公开(公告)日：1981-04-07

申请号：US97869

申请日：1979-11-27

申请人： Katsuo Isono ,  Tomoyoshi Imayasu

发明人： Katsuo Isono ,  Tomoyoshi Imayasu

IPC分类号： H04N9/24

CPC分类号： H04N9/24

摘要： In a beam index color television receiver of the type having a cathode ray tube which is provided with beam-excitable color elements disposed on a display screen of the cathode ray tube and index elements which are scanned by an electron beam as the beam scans the display screen, an apparatus for controlling the beam includes an index signal generator for generating a periodic index signal as the index elements are scanned by the beam, color gates which sequentially gate respective color control signals individually to modulate the electron beam as the beam scans the color elements, a gating signal circuit which generates sequential gating signals at a frequency synchronized with the frequency of the periodic index signal and which supplies the gating signals in sequence to the color gates to control the latter so as to gate the respective color control signals, and a phase-controlling circuit for controlling the phase of the gate pulse signals in response to the highest-level one of the color control signals.

摘要翻译： 在具有设置有阴极射线管的显示屏上的光束可激发色素的阴极射线管类型的光束折射彩色电视接收机和当光束扫描显示器时被电子束扫描的折射元件 屏幕，用于控制光束的装置包括索引信号发生器，用于当光束扫描索引元件时产生周期性折射率信号，彩色门随着光束扫描颜色逐个顺序地对各个颜色控制信号进行选通以调制电子束 门控信号电路，其以与周期性索引信号的频率同步的频率产生顺序的门控信号，并且将选通信号依次提供给彩色门以控制后者，以便对相应的颜色控制信号进行门控;以及 相位控制电路，用于响应于t的最高级别控制门脉冲信号的相位 他的颜色控制信号。