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    • 1. 发明授权
    • Multiple display control apparatus for a television receiver
    • 用于电视接收机的多重显示控制装置
    • US4578698A
    • 1986-03-25
    • US504783
    • 1983-06-16
    • Yutaka MikiToshiro NozoeKiyoshi Uchimura
    • Yutaka MikiToshiro NozoeKiyoshi Uchimura
    • H04N9/64H04N5/268
    • H04N9/641
    • A multiple display control apparatus for a television receiver used for displaying a plurality of signals on a display tube. In a case of switching a first signal output and a second signal output of a signal process circuit are switched by switching circuits, when the two output signals are about equal in the brightness level to each other, the picture is very indistinct. Thus, the first signal level is lowered by means of gain control circuits, the characteristic thereof depending on an output impedance of the signal process circuit and resistances. The control signals for switching and gain control are superposed each other as one signal, so that only one line is used for control signal.
    • 一种用于在显示管上显示多个信号的电视接收机的多显示控制装置。 在切换第一信号输出的情况下,通过开关电路切换信号处理电路的第二信号输出,当两个输出信号彼此之间的亮度级大致相等时,图像非常模糊。 因此,通过增益控制电路降低第一信号电平,其特性取决于信号处理电路的输出阻抗和电阻。 用于切换和增益控制的控制信号彼此叠加为一个信号,使得仅一条线用于控制信号。
    • 2. 发明授权
    • Optical displacement measuring instrument
    • 光学位移测量仪
    • US08134718B2
    • 2012-03-13
    • US12481040
    • 2009-06-09
    • Yutaka Miki
    • Yutaka Miki
    • G01B11/14
    • G01B11/306
    • A first light detector and a second light detector, in each of which a plurality of light-receiving elements are arranged in an adjoining manner, are respectively provided anterior to an image-forming point of first reflected light and posterior to an image-forming point of second reflected light. A focal-point detecting circuit includes: maximum value selectors for selecting the maximum values from sums of light-receiving signals from adjoining light-receiving elements of the first light detector and the second light detector respectively; a total value operator for obtaining the total value of light-receiving signals from all the light-receiving elements of each of the first light detector and the second light detector; a light-detecting-signal operator for obtaining light-detecting signals by subtracting the maximum values from the total values; and an error-signal operational circuit for outputting a difference between the light-detecting signals to a servo circuit as a signal based on an amount of displacement between a focal point and a measuring face.
    • 第一光检测器和第二光检测器分别设置在第一反射光的图像形成点的前方和图像形成点的后方,每个第一光检测器和第二光检测器中的多个光接收元件以相邻的方式排列 的第二反射光。 焦点检测电路包括:最大值选择器,用于从第一光检测器和第二光检测器的相邻光接收元件的光接收信号的和中选择最大值; 用于获得来自第一光检测器和第二光检测器中的每一个的所有光接收元件的光接收信号的总值的总值操作器; 光检测信号操作器,用于通过从总值中减去最大值来获得光检测信号; 以及误差信号操作电路,用于基于在焦点和测量面之间的位移量,将光检测信号之间的差输出到伺服电路作为信号。