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    • 31. 发明授权
    • Phase difference detection device for an inductive position detector
    • 用于感应位置检测器的相位差检测装置
    • US5710509A
    • 1998-01-20
    • US550358
    • 1995-10-30
    • Atsutoshi GotoYasuhiro YuasaShuiti TanakaNobuyuki AkatsuKazuya SakamotoHiroshi SakamotoAkio Yamamoto
    • Atsutoshi GotoYasuhiro YuasaShuiti TanakaNobuyuki AkatsuKazuya SakamotoHiroshi SakamotoAkio Yamamoto
    • G01B7/00G01B7/30G01D5/20G01D5/245H03M1/64G01D5/243
    • G01D5/2073H03M1/645
    • Two A.C. output signals amplitude-modulated in accordance with two function values (sine and cosine) differing from each other in correspondence to a position-to-be-detected are received from a position sensor such as a resolver. By performing an addition or subtraction between a signal derived by shifting the electric phase of one of the received A.C. output signals by a predetermined angle, and the other received signal, two electric A.C. signals (sin(.omega.t .+-.d.+-..theta.), sin(.omega.t.+-.d-.theta.)) are electrically synthesized which have electric phase angles (.theta.) corresponding to the position-to-be-detected and are phase-shifted in opposite directions. ".+-.d" here represents phase variation error caused by factors, other than the position-to-be-detected, such as temperature change. In the synthesized two signals, the phase variation errors (.+-.d) appear in the same direction, while the phase differences (.theta.) corresponding to the position are shifted in opposite, positive and negative, directions. Thus, by measuring the respective phase shift amounts (.+-.d.+-..theta., .+-.d-.theta.) and performing appropriate operation, it is allowed to cancel out or extract the error (.+-.d) so that an accurate phase difference (.theta.) can be detected.
    • 从诸如解析器的位置传感器接收根据与要检测的位置相对应的彼此不同的两个功能值(正弦和余弦)进行幅度调制的两个交流输出信号。 通过在通过将接收的AC输出信号之一的电相位移位预定角度而得到的信号与另一个接收信号之间执行加法或减法,则两个电AC信号(sin(ω+Δ+/- d +/- theta ),sin(ω-t +/-dθ))被电合成,其具有对应于要被检测的位置的电相角(θ)并且在相反方向上相移。 这里的“+/- d”表示除了要检测的位置之外的因素(如温度变化)引起的相位变化误差。 在合成的两个信号中,相位变化误差(+/- d)出现在相同的方向,而与位置对应的相位差(θ)在相反的正负方向上移动。 因此,通过测量各自的相移量(+/- d +/-θ,+/-dθ)并执行适当的操作,允许其抵消或提取误差(+/- d),使得准确 可以检测相位差(theta)。
    • 33. 发明授权
    • Camera system including electronic flash device with slave emission
function
    • 相机系统包括具有从属发射功能的电子闪光灯装置
    • US5585987A
    • 1996-12-17
    • US503493
    • 1995-07-18
    • Hideki MatsuiHiroshi SakamotoNobuyoshi Hagiuda
    • Hideki MatsuiHiroshi SakamotoNobuyoshi Hagiuda
    • G03B15/05G03B15/03H05B41/34
    • G03B15/05G03B2215/0557
    • A camera system including an electronic flash device with a slave emission function, includes an electronic flash device including: a light-receiving unit for receiving a steep optical signal; a light-emitting unit for slave-emitting illumination light toward an object in response to the optical signal received by the light-receiving unit; a timer for starting a time measurement operation in response to the optical signal input to the light-receiving unit, and permitting an operation of the light-emitting unit after an elapse of a predetermined period of time; an attachment member used for attaching/detaching the device to/from a camera body; and a data communication function unit for exchanging various data including photographing information with the camera body via the attachment member; and a camera body electrically connected to the electronic flash device. In the camera system, the data communication function unit delays a synchronous time set by the camera body side in correspondence with the measurement time of the timer.
    • 一种包括具有从属发射功能的电子闪光装置的相机系统,包括电子闪光装置,包括:光接收单元,用于接收陡峭的光信号; 发光单元,用于响应于由光接收单元接收到的光信号从而发射朝向物体的照明光; 用于响应于输入到所述光接收单元的光信号而开始时间测量操作的定时器,并且允许所述发光单元在经过预定时间段之后的操作; 用于将设备附接/从相机机身拆卸的附件; 以及数据通信功能单元,用于经由附接构件与相机主体交换包括拍摄信息的各种数据; 以及电连接到电子闪光装置的照相机体。 在相机系统中,数据通信功能单元延迟相机体侧设置的与定时器的测量时间相对应的同步时间。
    • 34. 发明授权
    • Electronic flash control system and method for high-speed flashing
    • 电子闪光灯控制系统及方法,用于高速闪光
    • US5491533A
    • 1996-02-13
    • US267400
    • 1994-06-29
    • Hiroshi Sakamoto
    • Hiroshi Sakamoto
    • G03B7/16G03B15/05H05B41/34G03B7/00
    • H05B41/34G03B7/16
    • An electronic flash control system and method for a high-speed repeating flash having a main capacitor which stores energy for flashing, a discharge element, a switching apparatus, a control unit and a photometric unit. The switching apparatus causes the discharge element to flash multiple times during the exposure operation of the camera based on a signal from the control unit generated in accordance with the duty ratio. The duty ratio for each flash is determined by the control unit based on a signal from the photometric unit representative of the quantity of light from the previous flash of the discharge element. As the control system does not perform real-time control, delays of the control system do not adversely affect accuracy.
    • 一种用于高速重复闪光的电子闪光控制系统和方法,其具有存储用于闪光的能量的主电容器,放电元件,开关装置,控制单元和光度单元。 基于来自根据占空比生成的控制单元的信号,开关装置使得放电元件在照相机的曝光操作期间闪光多次。 每个闪光灯的占空比由控制单元基于表示来自放电元件的先前闪光的光量的来自测光单元的信号来确定。 由于控制系统不执行实时控制,控制系统的延迟不会对精度产生不利影响。
    • 38. 发明授权
    • Multi-chamber inclined ball mill
    • 多室倾斜球磨机
    • US4982906A
    • 1991-01-08
    • US493336
    • 1990-03-14
    • Hiroshi SakamotoMitsuru YamamotoHitoshi Ohya
    • Hiroshi SakamotoMitsuru YamamotoHitoshi Ohya
    • B02C17/04B02C17/06
    • B02C17/06
    • A multi-chamber inclined ball mill comprises a base, a frame-shaped support member rotatably supported on the base, and a grinding chamber rotatably supported on the frame-shaped support member. The grinding chamber is constituted of at least three cylindrical chambers each provided with outwardly tapered protrusions at its opposite ends and the cylindrical chambers integrally formed so that their longitudinal axes mutually intersect at the centers thereof and form a common grinding space at their region of intersection. The grinding chamber is supported on the frame-shaped support member such that the longitudinal axes of the cylindrical chambers intersect the axis of rotation of the frame-shaped support member at a single point and at one and the same angle.
    • 多室倾斜球磨机包括基座,可旋转地支撑在基座上的框架状支撑构件和可旋转地支撑在框架状支撑构件上的研磨室。 研磨室由至少三个圆柱形的腔室构成,每个圆柱形腔室的相对端分别具有向外锥形的突出部分,并且圆柱形腔室一体地形成,使得它们的纵向轴线在其中心处相互相交,并在它们的交叉区域形成公共的研磨空间。 研磨室被支撑在框架状支撑构件上,使得圆柱形腔室的纵向轴线在框架状支撑构件的旋转轴线处以单个点和相同的角度相交。