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    • 1. 发明授权
    • Time base correction apparatus
    • 时基校正装置
    • US5359366A
    • 1994-10-25
    • US996597
    • 1992-12-24
    • Tsuneo UbukataHiroshi Takeshita
    • Tsuneo UbukataHiroshi Takeshita
    • H04N5/956H04N9/896H04N5/12
    • H04N5/956
    • An apparatus for compensating a time base error of a video signal. A reference signal of no time base error is generated. A difference between a frequency of the reference signal and a frequency of a horizontal synchronizing signal included in an input analog video signal is detected and then a difference signal is outputted. In response to the difference signal, a phase of the reference signal is controlled. The video signal is sampled, based on the reference signal the phase of which is controlled, thus the video signal is converted into a digital signal in which the difference is cancelled. The digital signal is stored in a memory. And the stored digital signal is read out, based on the reference signal.
    • 一种用于补偿视频信号的时基误差的装置。 产生无时基错误的参考信号。 检测参考信号的频率和包括在输入模拟视频信号中的水平同步信号的频率之间的差异,然后输出差分信号。 响应差信号,控制参考信号的相位。 视频信号根据其相位被控制的参考信号进行采样,因此将视频信号转换成数字信号,其中差值被取消。 数字信号存储在存储器中。 并且基于参考信号读出所存储的数字信号。
    • 3. 发明授权
    • Jitter reducing circuit
    • 抖动减少电路
    • US5923377A
    • 1999-07-13
    • US755695
    • 1996-11-25
    • Takashi KenmochiHiroshi TakeshitaTsuneo Ubukata
    • Takashi KenmochiHiroshi TakeshitaTsuneo Ubukata
    • H04N5/95H04N5/932H04N9/896H04N7/00H03L7/00H04N5/04
    • H04N5/932H04N9/896
    • A sync signal correction circuit generates a corrected sync signal which is obtained by correcting a timing of a sync signal on the basis of a time axis variation component (jitter component) of the sync signal separated from a picture signal. The corrected sync signal is used as the sync signal to cause a variation of time axis error of the picture signal to follow a variation of time axis error of an output signal of an automatic frequency control (AFC) circuit which constitutes a monitor device for reproducing and displaying the picture signal, such that the variation of time axis error of the output signal of the AFC circuit and the variation of time axis error of the picture signal of the reproduced picture signal are cancelled each other to prevent jittere from appearing on a display screen.
    • 同步信号校正电路根据与图像信号分离的同步信号的时间轴变化分量(抖动分量),校正同步信号的定时而得到的校正同步信号。 校正后的同步信号用作同步信号,导致图像信号的时间轴误差的变化跟随构成用于再现的监视装置的自动频率控制(AFC)电路的输出信号的时间轴误差的变化 并且显示图像信号,使得AFC电路的输出信号的时间轴误差的变化和再现的图像信号的图像信号的时间轴误差的变化彼此抵消,以防止在显示器上出现抖动 屏幕。
    • 4. 发明授权
    • Magnetic video signal reproducing apparatus with correction of phase
rotation
    • 具有相位旋转校正的磁性视频信号再现装置
    • US5416599A
    • 1995-05-16
    • US15026
    • 1993-02-05
    • Tsuneo UbukataHiroshi Takeshita
    • Tsuneo UbukataHiroshi Takeshita
    • H04N5/783H04N9/84H04N9/89H04N9/896
    • H04N9/89H04N9/84H04N5/783
    • An apparatus for reproducing video signals from a magnetic recording medium using first and second magnetic heads mutually having different azimuth angles. Here, the video signal is obtained by frequency-multiplexing of a low frequency-converted chrominance signal which is obtained by converting into a low frequency range and phase rotation of a chrominance signal per horizontal scanning period, and a modulated luminance signal, and recorded in the magnetic recording medium. One of video signals picked up by the magnetic heads is selected to obtain a chain of reproduced video signal. Discontinuity is detected if there is in the phase rotation of the low frequency-converted chrominance signal in the reproduced video signal. The low frequency-converted chrominance signal in the reproduced video signal is reconverted into a high frequency range chrominance signal having no phase rotation. The phase rotation of the low frequency-converted chrominance signal in the reproduced video signal is forcibly corrected when the discontinuity is detected in the phase rotation.
    • 一种用于使用相互具有不同方位角的第一和第二磁头从磁记录介质再现视频信号的装置。 这里,通过对通过转换成低频范围而获得的低频转换色度信号和每个水平扫描周期的色度信号的相位旋转和调制亮度信号的频率复用获得视频信号,并记录在 磁记录介质。 选择由磁头拾取的视频信号之一以获得再现的视频信号链。 如果在再现的视频信号中存在低频转换的色度信号的相位旋转,则检测到不连续性。 再现视频信号中的低频转换色度信号被重新转换为没有相位旋转的高频范围色度信号。 当在相位旋转中检测到不连续时,强制校正再现视频信号中的低频转换色度信号的相位旋转。
    • 8. 发明授权
    • Hydraulic brake control assembly responsive to vehicular deceleration
    • 液压制动控制组件响应车辆减速度
    • US4141596A
    • 1979-02-27
    • US847935
    • 1977-11-02
    • Hiroshi TakeshitaTakashi Nagashima
    • Hiroshi TakeshitaTakashi Nagashima
    • B60T8/28B60T8/14
    • B60T8/282
    • An improved hydraulic brake control assembly for automotive vehicles having a proportioning valve for regulating the hydraulic pressure applied to the rear wheel brakes from a master brake cylinder in accordance with vehicular load. A control device responsive to vehicular deceleration and hydraulic pressure from the master brake cylinder controls the proportioning valve by a slidable piston of the control device applying an urging force on the proportioning valve varied in response to the hydraulic pressure applied to the slidable piston. The hydraulic pressure from the master brake cylinder applied to the slidable piston is modified by first valve, a second pressure-sensitive valve and an orifice. The first valve controls admission of the hydraulic pressure to the slidable piston in response to predetermined vehicular deceleration, the orifice and the second valve being in parallel, the hydraulic pressure normally being supplied to the slidable piston through the orifice. The normally-closed second valve is opened when a predetermined hydraulic pressure difference is reached on opposing sides of the orifice for supplying the hydraulic pressure to the slidable piston without pressure throttling by the orifice. The proportioning valve therefore operates to provide a proper hydraulic pressure to the rear wheel brakes in accordance with different vehicular loads and braking applications.
    • 一种用于机动车辆的改进的液压制动控制组件,具有用于根据车辆负载调节从主制动缸向后轮制动器施加的液压的比例阀。 响应于来自主制动缸的车辆减速和液压的控制装置通过控制装置的可滑动的活塞控制比例阀,该滑动活塞响应于施加到可滑动活塞的液压而对比例阀施加一个作用力。 施加到滑动活塞的主制动缸的液压由第一阀,第二压敏阀和孔改变。 第一阀门响应于预定的车辆减速度控制允许可滑动活塞的液压压力,孔口和第二阀门是平行的,液压通常通过孔口供给到可滑动活塞。 当在节流孔的相对侧面上达到预定的液压压力差时,常闭第二阀打开,用于将压力供给滑动活塞,而不通过节流孔进行压力节流。 因此,比例阀根据不同的车辆载荷和制动应用来操作以向后轮制动器提供适当的液压压力。
    • 10. 发明授权
    • Pressure control valve assembly for brake systems
    • 用于制动系统的压力控制阀组件
    • US4222613A
    • 1980-09-16
    • US24257
    • 1979-03-27
    • Hiroshi TakeshitaTakashi NagashimaHiroyuki Kondo
    • Hiroshi TakeshitaTakashi NagashimaHiroyuki Kondo
    • B60T8/26B60T13/00
    • B60T8/265
    • A pressure control valve assembly in a split brake system having two separate pressure lines comprises two valve pistons subjected to pressure from separate pressure sources so as to control the outlet pressure admitted to the respective rear wheel brakes. The valve assembly further comprises two movable members each in alignment with each of two valve pistons and subjected to the pressure of two pressure lines at each end thereof and two springs each interposed between a respective piston and movable member for normally urging the piston in the valve closing direction. The hydraulic failure of one of two pressure lines causes the movable member to move in the direction wherein no biasing force of the spring may be imparted to the valve piston.
    • 具有两个分开的压力管线的分离制动系统中的压力控制阀组件包括经受来自分开的压力源的压力的两个阀活塞,以便控制进入各个后轮制动器的出口压力。 阀门组件还包括两个可动构件,每个可移动构件与两个阀活塞中的每一个对准,并且在每个端部承受两条压力管线的压力,并且两个弹簧分别插入在相应的活塞和可动构件之间,用于正常地推动阀门中的活塞 关闭方向。 两个压力管线中的一个的液压故障使得可动构件沿其中不向阀活塞施加弹簧的偏压力的方向移动。