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    • 33. 发明授权
    • Non-contact electrical power transmission system
    • 非接触式电力传输系统
    • US6108216A
    • 2000-08-22
    • US407761
    • 1999-09-29
    • Hideaki AbeHiroshi SakamotoKosuke Harada
    • Hideaki AbeHiroshi SakamotoKosuke Harada
    • H01F38/14H02J5/00H02J7/02H02J17/00H02M3/28H02M3/337H02M3/335
    • H02J7/025H02J5/005H02M3/337
    • A non-contact electrical power transmission system is capable of providing a large supply current of uniform level at an optimum transmission efficiency. The system includes a power circuit including a power supply of providing a high frequency voltage across a power winding, and a load circuit for energizing a load. The load circuit is composed of a secondary winding, a matching capacitor, a rectifier, and a choke coil. The secondary winding is magnetically coupled to the power winding so as to generate an induced high frequency voltage and to provide a leakage inductance to the load circuit. The matching capacitor is connected across the secondary winding to be cooperative with the leakage inductance and with the secondary winding to form an oscillatory circuit which provides an oscillating voltage across the matching capacitor for generating a supply current being fed through the rectifier and the choke coil to the load. The matching capacitor is selected to have a specific capacitance such that the oscillating voltage reaches its extreme each time the inducted high frequency voltage reverses its polarity. The choke coil is connected in circuit to smoothen the supply current. Thus, the supply current of uniform level can be fed to the load, reducing a possibility of incurring a noise on the supply current, yet minimizing an impedance between the supply circuit and the load circuit for realizing an optimum efficiency of converting the high frequency voltage into the supply current.
    • 非接触电力传输系统能够以最佳传输效率提供均匀电平的大电源电流。 该系统包括电源电路,其包括在功率绕组上提供高频电压的电源和用于为负载供电的负载电路。 负载电路由次级绕组,匹配电容器,整流器和扼流线圈组成。 次级绕组磁耦合到功率绕组,以产生感应高频电压并向负载电路提供漏电感。 匹配电容器跨越次级绕组连接以与漏电感和次级绕组协调以形成振荡电路,其在匹配电容器两端提供振荡电压,以产生馈送通过整流器和扼流线圈的电源电流 负载。 选择匹配电容器以具有比电容,使得每次感应的高频电压反转其极性时,振荡电压达到极限。 扼流线圈连接在电路中以平滑电源电流。 因此,均匀电平的电源电流可以馈送到负载,减少了在电源电流上产生噪声的可能性,同时最小化供电电路和负载电路之间的阻抗,以实现转换高频电压的最佳效率 进入电源。
    • 34. 发明授权
    • Induction-type linear position detector device
    • 感应式线性位置检测装置
    • US6034624A
    • 2000-03-07
    • US818974
    • 1997-03-14
    • Atsutoshi GotoYasuhiro YuasaShuichi TanakaNobuyuki AkatsuKazuya SakamotoHiroshi SakamotoAkio Yamamoto
    • Atsutoshi GotoYasuhiro YuasaShuichi TanakaNobuyuki AkatsuKazuya SakamotoHiroshi SakamotoAkio Yamamoto
    • G01B7/02G01D5/22G08C19/06
    • G01B7/02G01D5/2216
    • A winding section includes a primary winding to be excited by a single-phase A.C. signal, and a plurality of secondary windings provided at different locations with respect to a predetermined direction of linear movement. A variable magnetic coupling section includes a plurality of magnetic response members provided in repetition at a predetermined pitch along the direction of linear movement, and allows inductive A.C. output signals, amplitude-modulated in accordance with a varying linear position of an object of detection, to be produced in the individual secondary windings with amplitude function characteristics differing depending on positional differences between the secondary windings. Each of the inductive A.C. output signals produced in the secondary windings varies in its amplitude function in periodic cycles each corresponding to the pitch length of the magnetic response members. The variable magnetic coupling section may include a core section made of a wire, and the magnetic response members in the form of metal pieces provided at the predetermined pitch and secured by caulking to the core section.
    • 绕组部分包括由单相交流信号激励的初级绕组,以及设置在相对于线性运动的预定方向的不同位置处的多个次级绕组。 可变磁耦合部分包括沿着线性运动方向以预定间距重复设置的多个磁响应部件,并且允许根据检测对象的变化线性位置进行幅度调制的感应AC输出信号 在具有根据次级绕组之间的位置差异的幅度函数特性的各个次级绕组中产生。 在次级绕组中产生的每个电感式交流输出信号在其振幅函数中以每个对应于磁响应构件的音调长度的周期周期变化。 可变磁耦合部分可以包括由导线制成的芯部分和以预定间距设置的金属片形式的磁响应部件,并且通过铆接固定到芯部。
    • 36. 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)。
    • 38. 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。
    • 39. 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。