中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

353 records (took 0.019 seconds)

    Comparator for semiconductor testing device
    112.
    发明授权
    Comparator for semiconductor testing device 失效
    半导体测试装置的比较器

    公开(公告)号：US6016566A

    公开(公告)日：2000-01-18

    申请号：US913349

    申请日：1998-02-09

    Applicant: Kenji Yoshida

    Inventor： Kenji Yoshida

    IPC: G01R31/28 ,  G01R19/165 ,  G01R31/317 ,  G01R31/319 ,  G01R31/3193 ,  H03K5/003 ,  H03K5/24 ,  H01H61/00

    CPC classification number: H03K5/003 ,  G01R31/31703 ,  G01R31/31924 ,  G01R31/3193 ,  G01R31/31932 ,  H03K5/2418

    Abstract: A comparator circuit for differential output signals which is not affected by a common mode noise on the differential signals. The comparator circuit is advantageously used for testing differential output signals from a device under test (DUT). The comparator circuit includes an offset circuit for receiving differential signals from the DUT and generating a pair of balanced output signals which is provided with a predetermined offset voltage therebetween, and a comparator for receiving the pair of output signals from the offset circuit and comparing voltages between the output signals.

    Abstract translation: PCT No.PCT / JP97 / 00102 Sec。 371日期：1998年2月9日 102（e）1998年2月9日PCT 1997年1月20日PCT PCT。 公开号WO97 / 27493 日期1997年7月31日用于差分输出信号的比较器电路，不受差分信号上的共模噪声的影响。 比较器电路有利地用于测试来自被测器件（DUT）的差分输出信号。 比较器电路包括一个偏移电路，用于从DUT接收差分信号，并产生一对平衡输出信号，该平衡输出信号在其间提供预定的偏移电压;以及比较器，用于从偏移电路接收一对输出信号， 输出信号。

    Method for driving stepping motor of multiphase hybrid type
    113.
    发明授权
    Method for driving stepping motor of multiphase hybrid type 失效
    多相混合型步进电机驱动方法

    公开(公告)号：US5726510A

    公开(公告)日：1998-03-10

    申请号：US798788

    申请日：1997-02-12

    Applicant: Noriyuki Yoshimura ,  Kenji Yoshida

    Inventor： Noriyuki Yoshimura ,  Kenji Yoshida

    IPC: H02K37/14 ,  H02K37/18 ,  H02K37/04

    CPC classification number: H02K37/18

    Abstract: A hybrid type stepping motor in which torque variation is reduced to as low as possible, torque stiffness is improved, and resonant vibration during the rotating movement is minimized. Each fixed magnetic pole has at least two small teeth arranged at intervals of the same pitch as the teeth of a rotor. The total number (NS) of the small teeth of a stator segment of an asymmetrical form is determined by NS=5.times.(n0+n1), wherein n0 is the number of the small teeth on each of five of the ten fixed magnetic poles and n1 is the number of the small teeth on each of the remaining five fixed magnetic poles. The fixed magnetic poles with the n1 small teeth are arranged alternately with the fixed magnetic poles with the n0 small teeth. The n1 small teeth poles and the n0 small teeth poles are disposed opposite to each other about the axis of a rotary shaft. The relation between the total number (NR) of the teeth of the rotor and the total number (NS) of the small teeth of the stator segment is expressed by NS.gtoreq.0.8NR (NS being greater than or equal to 0.8NR). A difference between NR and NS is calculated from NR-NS=K(S0-S1)+10(S1-1+B) where K is an integer from 2 to 5, S0 and S1 are smallest possible integers or may be equal, and B is a fraction of 1 so that 10B is always an integer. Ten windings on their respective fixed magnetic poles are energized by a power supplying means to produce desired numbers of N and S poles. The full step angle is equal to an electric angle 90.degree.=aH=360.degree./10NR and thus, the half step angle is an electric angle 45.degree.=aH=360.degree./20NR. In magnetization, the energization of the ten windings at each step produces N and S poles of the same number. Also, one or more pairs of adjacent magnetic poles are polarized to S of each step.

    Abstract translation: 一种混合型步进电动机，其中转矩变化减小到尽可能低的转矩刚度，并且旋转运动期间的共振振动最小化。 每个固定磁极具有至少两个以与转子的齿相同的间距排列的小齿。 非对称形式的定子段的小齿的总数（NS）由NS = 5x（n0 + n1）确定，其中n0是十个固定磁极中的五个中的每一个上的小齿数， n1是剩下的五个固定磁极中的每一个上的小齿数。 具有n1小齿的固定磁极与n0个小齿的固定磁极交替排列。 n1个小齿极和n0个小齿极绕旋转轴的轴线相对配置。 转子齿数与定子段的小齿数的总数（NS）之间的关系由NS> / = 0.8NR（NS大于或等于0.8NR）表示， 。 从NR-NS = K（S0-S1）+10（S1-1 + B）计算NR和NS之间的差异，其中K是从2到5的整数，S0和S1是可能的最小整数，或者可以相等， 而B是1的分数，所以10B总是一个整数。 其各自的固定磁极上的十个绕组由供电装置通电以产生所需数量的N极和S极。 全角度等于电角度90°= aH = 360°/ 10NR，因此半步角为电角度45°= aH = 360°/ 20NR。 在磁化中，在每个步骤中十个绕组的通电产生相同数量的N和S极。 此外，一对或多对相邻的磁极被极化到每个步骤的S。

    Sheet processing apparatus
    119.
    发明授权
    Sheet processing apparatus 有权

    公开(公告)号：US10272588B2

    公开(公告)日：2019-04-30

    申请号：US14959686

    申请日：2015-12-04

    Applicant: Kenji Yoshida

    Inventor： Kenji Yoshida

    IPC: B26F1/00 ,  B26F1/02 ,  B65H35/00 ,  B65H37/04

    Abstract: Provided is a sheet processing apparatus having a configuration that a processing mechanism to perform a process on a sheet, a first conveying path to guide a sheet to the processing mechanism, and a second conveying path to guide a sheet are configured to be integrally removable from another component.

Patent Agency Ranking