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    • 1. 发明授权
    • Scalable CRT display device and phase synchronous circuit for use in
display device
    • 可扩展的CRT显示设备和用于显示设备的相位同步电路
    • US5712532A
    • 1998-01-27
    • US306711
    • 1994-09-15
    • Masanori OginoYoshiyuki ImotoKunio UmeharaJiro KawasakiKiyoshi YamamotoMiyuki IkedaKazutaka Naka
    • Masanori OginoYoshiyuki ImotoKunio UmeharaJiro KawasakiKiyoshi YamamotoMiyuki IkedaKazutaka Naka
    • G09G1/04H04N3/233H04N3/26H04N3/27H04N9/64H01V29/98
    • G09G1/04H04N3/2335H04N3/26H04N3/27H04N9/645
    • A CRT display device capable of displaying a signal from the existing image signal source, in which a vertical frequency is approximately fixed and a horizontal frequency is widely distributed beyond a ratio of 3:1, on one image screen. The CRT display device includes a scan converter unit and a display unit. The scan converter unit includes an output horizontal frequency unifying circuit, a horizontal blanking period ratio converting circuit, a vertical frequency converting unit and a vertical blanking period ratio converting circuit. The display unit includes a vertical deflection circuit and a circuit for correcting a vertical S-shaped distortion. In a phase synchronous circuit, a lock-out detector is connected to an output of a three state output digital phase detector, and on the basis of an output thereof, a switch is subjected to the "ON"/"OFF" control. For a period of time when an output of the lock-out detector indicates a lock-out state, a loop gain of the PLL is increased and the pull-in time is shortened. For the remaining periods of time, i.e., in the steady state, the loop gain is decreased and the noise resistance characteristics are improved.
    • 一种CRT显示装置,其能够显示来自现有图像信号源的信号,其中垂直频率近似固定,并且水平频率被广泛地分布在超过比例3:1的一个图像屏幕上。 CRT显示装置包括扫描转换器单元和显示单元。 扫描转换器单元包括输出水平频率统一电路,水平消隐周期比变换电路,垂直频率转换单元和垂直消隐周期比变换电路。 显示单元包括垂直偏转电路和用于校正垂直S形失真的电路。 在相位同步电路中,锁定检测器连接到三态输出数字相位检测器的输出,并且基于其输出,开关进行“接通”/“断开”控制。 在锁定检测器的输出指示锁定状态的一段时间内,PLL的环路增益增加,并且引入时间缩短。 对于剩余时间段,即处于稳定状态,环路增益减小,并且提高了抗噪声特性。
    • 2. 发明授权
    • Cathode ray tube display
    • 阴极射线管显示
    • US5589883A
    • 1996-12-31
    • US257441
    • 1994-06-08
    • Masanori OginoTakeo YamadaMiyuki IkedaTsuneo FujikuraTakahiko FujiwaraEtsuhiro Nakagiri
    • Masanori OginoTakeo YamadaMiyuki IkedaTsuneo FujikuraTakahiko FujiwaraEtsuhiro Nakagiri
    • G09G1/04G09G1/00G09G1/16H04N3/16H04N3/22H04N9/64H04N9/73H04N5/68
    • H04N9/645
    • A cathode ray tube display in which a signal for detection of a cathode current is inserted into a part of the vertical blanking period of the video signal to be displayed, a cathode current corresponding to the signal for detection is detected, and a cathode voltage or a grid voltage is negative feedback controlled so that the detected cathode current becomes constant, thereby stabilizing the cathode current. The display has a local overscan circuit for executing a vertical scan on the screen with a width larger than a predetermined scan width only at a timing of the cathode current detecting signal inserted for a vertical blanking period, and even in the case where an underscan system to scan by a width smaller than a predetermined display screen width is used as a scan system of the screen display. The invention prevents a harmful visible display image by the cathode current detecting signal appears on the screen.
    • 一种阴极射线管显示器,其中用于检测阴极电流的信号被插入待显示的视频信号的垂直消隐周期的一部分中,检测与用于检测的信号相对应的阴极电流,以及阴极电压或 栅极电压被负反馈控制,使得检测到的阴极电流变得恒定,从而稳定阴极电流。 显示器具有本地过扫描电路,仅在垂直消隐期间插入的阴极电流检测信号的定时,在屏幕上执行宽度大于预定扫描宽度的垂直扫描,并且即使在下扫系统 使用小于预定显示屏宽度的宽度扫描作为屏幕显示的扫描系统。 本发明防止阴极电流检测信号出现在屏幕上的有害可见显示图像。
    • 3. 发明授权
    • Vertical deflection circuit for CRT display device
    • CRT显示装置的垂直偏转电路
    • US5010280A
    • 1991-04-23
    • US514592
    • 1990-04-26
    • Masanori OginoTakeo YamadaMiyuki Ikeda
    • Masanori OginoTakeo YamadaMiyuki Ikeda
    • H04N3/22G09G1/04G09G1/16H04N3/223
    • H04N3/223
    • A vertical deflection circuit for a CRT display device comprises a first negative feedback circuit for detecting a vertical deflection current flowing through a vertical deflection coil feeding it back to a ramp wave generator to thereby stabilize a vertical size of the display image on the CRT screen, second negative feedback circuit connected between the deflection coil to an input of the output circuit for detecting a mean vertical deflection current which is fedback to an output circuit to thereby stabilize a vertical position of the display image on the CRT screen and a controlling circuit for controlling feedback amount of the first and second negative feedback circuits to thereby regulate a vertical size and a vertical position of the display image on the CRT screen variably.
    • 用于CRT显示装置的垂直偏转电路包括:第一负反馈电路,用于检测流过垂直偏转线圈的垂直偏转电流,将其反馈回斜波发生器,从而稳定CRT屏幕上显示图像的垂直尺寸; 第二负反馈电路连接在偏转线圈与输出电路的输入端之间,用于检测反馈到输出电路的平均垂直偏转电流,从而稳定显示图像在CRT屏幕上的垂直位置,以及控制电路,用于控制 从而可以可变地调节CRT显示屏上的显示图像的垂直尺寸和垂直位置。
    • 4. 发明授权
    • High precision PLL with circuit for preventing erroneous capture
    • 高精度PLL,具有防止错误捕获的电路
    • US5053724A
    • 1991-10-01
    • US530183
    • 1990-05-29
    • Masanori OginoTakeo YamadaMiyuki Ikeda
    • Masanori OginoTakeo YamadaMiyuki Ikeda
    • H04N5/12G09G5/00G09G5/02G09G5/12G09G5/18H03L7/093H04N3/27
    • H03L7/093H03L2207/14
    • In a high prrecision PLL circuit arrangement, a phase detecting circuit produces a detecting signal which is directly proportional to a phase difference between a horizontal synchronizing signal and a voltage-controlled oscillating signal. A loop filter circuit produces a delay signal for delaying a frequency control at a predetermined time constant in response to the detecting signal derived from the phase detecting circuit. A voltage-controlled oscillating circuit produces an oscillating signal having a frequency directly proportional to a voltage of the delay signal from the loop filter circuit. A non-linear circuit includes a non-linear element for changing at least one of an AC gain and a DC gain of the loop filter circuit, and prevents an erroneous capture phenomenon of the PLL circuit arrangement in response to the detecting signal from the phase detecting circuit.
    • 在高精度PLL电路装置中,相位检测电路产生与水平同步信号和压控振荡信号之间的相位差成正比的检测信号。 环路滤波器电路响应于从相位检测电路导出的检测信号,产生用于延迟预定时间常数的频率控制的延迟信号。 压控振荡电路产生具有与来自环路滤波器电路的延迟信号的电压成正比的频率的振荡信号。 非线性电路包括用于改变环路滤波器电路的AC增益和DC增益中的至少一个的非线性元件,并且响应于来自相位的检测信号防止PLL电路装置的错误捕获现象 检测电路。
    • 5. 发明授权
    • Cathode ray tube display device
    • 阴极射线管显示装置
    • US4918359A
    • 1990-04-17
    • US335434
    • 1989-04-10
    • Masanori OginoTakeo YamadaMiyuki Ikeda
    • Masanori OginoTakeo YamadaMiyuki Ikeda
    • H04N3/16H04N3/18
    • H04N3/18
    • A vertical deflection circuit used in a cathode ray tube display device for shortening a vertical blanking period is disclosed which includes back-flow blocking diode means for preventing an oscillating current from flowing backward to a vertical push-pull output amplifier circuit in the vertical blanking period, resonating capacitor means, and electrostatic energy supplying means for energizing a fly-back pulse. The resonating capacitor means is provided to generate resonance due to the capacitance of the capacitor means and the inductance of a vertical deflection coil, on the basis of the electro-magnetic energy of the vertical deflection coil at a time immediately before a retrace line starts from the bottom of display screen, thereby producing a fly-back pulse. The back-flow blocking diode means prevents the fly-back pulse from flowing backward to the vertical output circuit, that is, prevents the fly-back pulse from de-energizing the output of the vertical output circuit. According to the above vertical deflection circuit, the power consumption in a vertical retrace operation is reduced, and a ratio of the vertical blanking period to a vertical scanning period can be made small. Accordingly, an effective scanning time is increased, and it becomes possible to display information precisely.
    • 公开了用于缩短垂直消隐期的阴极射线管显示装置中使用的垂直偏转电路,其包括用于防止振荡电流在垂直消隐期间向后流向垂直推挽输出放大器电路的反向流阻塞二极管装置 谐振电容器装置和用于激励回扫脉冲的静电能量供给装置。 谐振电容器装置被设置为基于电容器装置的电容和垂直偏转线圈的电感,基于垂直偏转线圈的电磁能在回扫线开始之前的时间产生谐振 显示屏的底部,从而产生回扫脉冲。 逆流阻塞二极管装置防止反向脉冲向后流向垂直输出电路,即防止回扫脉冲使垂直输出电路的输出断电。 根据上述垂直偏转电路,垂直回扫操作中的功耗降低,并且可以使垂直消隐周期与垂直扫描周期的比例变小。 因此,有效的扫描时间增加,可以精确地显示信息。
    • 8. 发明授权
    • Multi-scan type display system with pointer function
    • 具有指针功能的多扫描型显示系统
    • US5517210A
    • 1996-05-14
    • US115025
    • 1993-09-02
    • Masanori OginoYasuharu TamuroMiyuki IkedaFumio Inoue
    • Masanori OginoYasuharu TamuroMiyuki IkedaFumio Inoue
    • G09G1/16G06F3/033G09G5/00G09G5/08G09G5/12G09G5/18
    • G09G5/08G06F3/033
    • A multi-scan type display apparatus with pointer function includes a multi-scan type display unit for displaying a plurality of kinds of main picture signals having different numbers of scanning lines and a pointer position identifying signal generating circuit for generating a pointer position identifying signal. The pointer position identifying signal generating circuit transfers the pointer position identifying signal to the multi-scan type display unit, the multi-scan type display unit includes a universal vertical position address signal generating circuit, a horizontal position address signal generating circuit, a pointer signal generating circuit and a superimposing circuit. The pointer signal generating circuit generates a pointer signal in response to the pointer position identifying signal, a universal vertical position address signal and a horizontal position address signal, the pointer signal is superimposed on the main picture signal by the superimposing circuit, so that even if the input signal to the multi-scan type display unit is changed over to a different one having a different number of scanning lines, a pointer display position is kept constant on the display unit, and the pointer position can be moved to a desired position by controlling the pointer position identifying signal.
    • 具有指针功能的多扫描型显示装置包括:多扫描型显示单元,用于显示具有不同数目的扫描线的多种主图像信号;以及指针位置识别信号产生电路,用于产生指针位置识别信号。 指针位置识别信号发生电路将指针位置识别信号传送到多扫描型显示单元,多扫描型显示单元包括通用垂直位置地址信号发生电路,水平位置地址信号发生电路,指针信号 发电电路和叠加电路。 指针信号发生电路响应于指针位置识别信号,通用垂直位置地址信号和水平位置地址信号产生指针信号,通过叠加电路将指针信号叠加在主图像信号上,使得即使 向多扫描型显示单元的输入信号转换为具有不同数目的扫描线的不同的指示器显示位置在显示单元上保持恒定,并且可以通过以下方式将指针位置移动到所需位置 控制指针位置识别信号。