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1. 发明授权

US4766376A Magnetic position detector for detecting an absolute position of a movable member 失效
标题翻译：磁性位置检测器，用于检测可动件的绝对位置
公开(公告)号：US4766376A
公开(公告)日：1988-08-23
申请号：US896255
申请日：1986-08-14
申请人： Tadashi Takahashi , Kunio Miyashita , Syouichi Kawamata
发明人： Tadashi Takahashi , Kunio Miyashita , Syouichi Kawamata
IPC分类号： G01D5/14 , G01D5/245 , G01D5/249 , H03M1/00 , G01B7/30
CPC分类号： G01D5/145 , G01D5/2497 , H03M1/203 , H03M1/143 , H03M1/26 , H03M1/285
摘要： A magnetic recording medium is provided on a rotary drum and is divided into a plurality of magnetic tracks. On each track is recorded a magnetic signal of a combination of a magnetization portion which consists of two consecutive unit magnets (pitch .lambda.) and a no-magnetization portion having the same length (2.lambda.) that are alternatingly arranged over the whole periphery of the track. First magnetoresistive elements in the magnetic sensor are arranged in pairs so as to be opposed to the magnetic tracks maintaining a distance of .lambda./2. Second magnetoresistive elements opposed to the magnetic track that correponds to the lowest-order bit of position detecting signals, are arranged in a number of ##EQU1## for the first magnetoresistive element maintaining a distance of ##EQU2## wherein SM.sub.L denotes the length of the magnetic signal of the magnetic track, m denotes the number of the increased bits (0
摘要翻译：磁记录介质设置在旋转磁鼓上并被分成多个磁迹。在每个轨道上记录由两个连续的单位磁体（间距λ）组成的磁化部分和具有相同长度（2λ）的非磁化部分的组合的磁信号，所述非磁化部分交替布置在整个周边跟踪。磁传感器中的第一磁阻元件成对配置成与保持λ/ 2的距离的磁道相对。与磁迹相对的第二磁阻元件，其对应于位置检测信号的最低位，被布置成用于第一磁阻元件的数量“IMAGE”，其中第一磁阻元件保持距离“IMAGE”，其中SML表示磁体的长度磁迹的信号，m表示增加位数（0

2. 发明授权

US5019776A Magnetic position detection apparatus having two magnetic recording medium tracks with magnetoresistors arranged in a bridge circuit so as to eliminate even order harmonic distortion 失效
标题翻译：磁性位置检测装置具有布置在桥式电路中的具有磁阻器的两个磁记录介质轨道，以消除偶次谐波失真
公开(公告)号：US5019776A
公开(公告)日：1991-05-28
申请号：US355343
申请日：1989-05-23
申请人： Syooichi Kawamata , Tadashi Takahashi , Kunio Miyashita
发明人： Syooichi Kawamata , Tadashi Takahashi , Kunio Miyashita
IPC分类号： G01P3/487 , G01D5/14 , G01D5/16 , G01D5/245 , G01P3/488
CPC分类号： G01D5/145 , G01P3/488
摘要： An apparatus for magnetically detecting a positional relation between first and second members the positions of which change relative to each other comprises a magnetic recording medium carried on the first member and a magnetic sensor substrate supported by the second member. Two or more tracks each including a multiplicity of magnetic poles arranged at a predetermined pitch are provided on the magnetic recording medium, corresponding to the respective phases of two or more detection signals to be detected by the apparatus and in a direction in which the positional relation between the first and second members changes. The magnetic poles in any one of the tracks are shifted with respect to the magnetic poles in the other track by an amount corresponding to a phase difference between the detection signal for the phase which corresponds to the one track and the detection signal for the phase which corresponds to the other track. The magnetic sensor substrate includes a plurality of magnetoresistive elements which are respectively provided corresponding to the tracks and the electrical resistance value of each of which changes in response to a magnetic field originating from the corresponding track. The magnetoresistive elements are combined to generate electric signals as the detection signals. Each of the magnetoresistive elements corresponding to any one of the tracks and the corresponding one of the magnetoresistive elements corresponding to the other track are placed at the same position when viewed in the direction in which the positional relation between the first and second members changes.
摘要翻译：一种用于磁性检测第一和第二构件之间的位置关系的装置，其位置彼此相对变化，包括承载在第一构件上的磁记录介质和由第二构件支撑的磁传感器基板。在磁记录介质上设置两个或更多个磁道，每个磁道包括以预定间距排列的多个磁极，对应于由装置检测的两个或更多个检测信号的相位和位置关系第一和第二个成员之间的变化。任何一个轨道中的磁极相对于另一轨道中的磁极移动相当于对应于一个磁道的相位的检测信号和相位检测信号之间的相位差的量，对应其他轨道。磁传感器基板包括分别对应于轨道设置的多个磁阻元件，并且每个电阻值响应于来自相应轨道的磁场而改变。磁阻元件被组合以产生电信号作为检测信号。与第一和第二构件之间的位置关系改变的方向观察时，对应于轨道中的任何一个的磁阻元件和对应于另一个轨道的对应的一个磁阻元件中的每一个被放置在相同的位置。

3. 发明授权

US4904937A Apparatus for magnetically detecting positions with minimum length magnetic information units recorded on a plurality of magnetic tracks 失效
标题翻译：用于磁性检测记录在多个磁迹上的最小长度磁信息单元的位置的装置
公开(公告)号：US4904937A
公开(公告)日：1990-02-27
申请号：US253333
申请日：1988-10-03
申请人： Tadashi Takahashi , Kunio Miyashita , Syooichi Kawamata
发明人： Tadashi Takahashi , Kunio Miyashita , Syooichi Kawamata
IPC分类号： H03M1/24 , G01B7/00 , G01D5/245 , G01D5/249 , G01P3/44 , H03M1/00
CPC分类号： H03M1/285 , H03M1/0685
摘要： The present invention relates to an apparatus for magnetically detecting positions and intends to provide a position detecting apparatus of the kind with high accuracy in which when recording magnetic signals of a predetermined length on magnetization tracks, a plurality of recording units are continuously arranged in the direction of the magnetization track and are set as the predetermined recording length, thereby sharpening the output waveform of the signal corresponding to the edge portion of the magnetization recording length. The present invention is suitable for the absolute type having a plurality of magnetization tracks.
摘要翻译：本发明涉及一种用于磁性检测位置的装置，其目的是提供一种高精度的位置检测装置，其中当在磁化轨迹上记录预定长度的磁信号时，多个记录单元沿着方向连续地布置并将其设定为预定的记录长度，由此锐化对应于磁化记录长度的边缘部分的信号的输出波形。本发明适用于具有多个磁化轨迹的绝对型。

4. 发明授权

US4713613A Device for magnetically detecting displacement of non-magnetic movable member 失效
标题翻译：用于磁性检测非磁性可移动部件的位移的装置
公开(公告)号：US4713613A
公开(公告)日：1987-12-15
申请号：US662013
申请日：1984-10-18
申请人： Tadashi Takahashi , Kunio Miyashita , Syooichi Kawamata
发明人： Tadashi Takahashi , Kunio Miyashita , Syooichi Kawamata
IPC分类号： G01B7/00 , G01D5/18 , G01D5/244 , G01D5/245 , G01P3/44 , G01B7/28 , G11B5/39 , H01L43/08
CPC分类号： G01D5/24438 , G01D5/24476 , G01D5/2457
摘要： A device for magnetically detecting displacement, in which the middle points between the magnetic poles N and S of the magnetic signals recorded in different tracks, which are adjacent to each other, stand on common straight lines perpendicular to the direction of displacement and the direction from N to S of the magnetic signals is always the same, so that the magnetic signals in the different tracks, which are adjacent to each other, are aligned side by side and magnetic leakage between them is prevented.
摘要翻译：用于磁检测位移的装置，其中彼此相邻的记录在不同轨道中的磁信号的磁极N和S之间的中间点位于垂直于位移方向的共同直线上，磁信号的N到S总是相同的，使得彼此相邻的不同轨道中的磁信号被并排排列并且防止它们之间的磁泄漏。

5. 发明授权

US4473786A Method for controlling angular position and apparatus therefor 失效
标题翻译：用于控制角位置的方法及其装置
公开(公告)号：US4473786A
公开(公告)日：1984-09-25
申请号：US354282
申请日：1982-03-03
申请人： Kunio Miyashita , Tadashi Takahashi , Hiroshi Hayashida , Shigeki Morinaga , Kosho Ishizaki
发明人： Kunio Miyashita , Tadashi Takahashi , Hiroshi Hayashida , Shigeki Morinaga , Kosho Ishizaki
IPC分类号： G05B19/23 , G05B19/416 , G05B13/00
CPC分类号： G05B19/416 , G05B19/237
摘要： A method and apparatus for controlling the angular position of a motor by controlling the revolution of the motor in response to a given positioning command value commanding a predetermined angular position of the motor shaft so as to stop the motor shaft at the predetermined angular position, wherein the acceleration of the motor being accelerated in the initial acceleration stage of the motor position control operation is calculated, and on the basis of the calculated acceleration and a commanded maximum velocity, the remainder angular distance between the deceleration starting angular position and the desired angular position of the motor and the deceleration command value in the deceleration stage are calculated so as to control the deceleration of the motor on the basis of the calculated values.
摘要翻译：一种方法和装置，用于通过响应给定定位指令值控制电动机的转动来控制电动机的角度位置，所述定位指令值指令电动机轴的预定角位置，以将电动机轴停止在预定的角位置，其中计算在电动机位置控制动作的初始加速阶段加速的电动机的加速度，根据计算出的加速度和命令的最大速度，减速开始角位置与期望角位置之间的剩余角距离并且计算减速阶段的电动机的减速指令值，并根据计算出的值来控制电动机的减速度。

6. 再颁专利

USRE34443E Apparatus magnetically detecting position or speed of moving body utilizing bridge circuit with series connected MR elements 失效
标题翻译：利用具有串联连接MR元件的桥式电路，磁力检测移动体的位置或速度
公开(公告)号：USRE34443E
公开(公告)日：1993-11-16
申请号：US643124
申请日：1991-01-18
申请人： Tadashi Takahashi , Seizi Yamashita , Kunio Miyashita , Syooichi Kawamata
发明人： Tadashi Takahashi , Seizi Yamashita , Kunio Miyashita , Syooichi Kawamata
IPC分类号： G01D5/14 , G01D5/16 , G01D5/244 , G01D5/245 , G01P3/487 , G01B7/14 , G01P3/42
CPC分类号： G01D5/145 , G01D5/24438 , G01D5/24476 , G01D5/2451 , G01P3/487
摘要： Magnetic poles are provided continuously with a pitch .lambda. on the peripheral portion of a drum rotated in accordance with a movement of a moving body. A magnetic sensor is provided in opposition to these poles. The sensor is formed of two magnetoresistive element pairs which are spaced from each other at .lambda./6, and the two elements in each pair are arranged in positions spaced from each other at .lambda./2. The two elements in each pair are connected in series to form a bridge circuit. The signals obtained from the nodes of the series-connected elements in the two element pairs are differentially amplified so that third harmonic wave components are eliminated, and a signal having no distortion and representative of the position or speed of the moving body can be obtained.

7. 发明授权

US4874053A Torque detecting apparatus 失效
标题翻译：转矩检测装置
公开(公告)号：US4874053A
公开(公告)日：1989-10-17
申请号：US209998
申请日：1988-06-22
申请人： Hiroshi Kimura , Shotaro Naito , Kunio Miyashita , Yasuo Noto , Noboru Sugiura , Tadashi Takahashi , Hirohisa Yamamura , Seizi Yamashita , Syooichi Kawamata , Fumio Tajima , Shigeru Horikoshi
发明人： Hiroshi Kimura , Shotaro Naito , Kunio Miyashita , Yasuo Noto , Noboru Sugiura , Tadashi Takahashi , Hirohisa Yamamura , Seizi Yamashita , Syooichi Kawamata , Fumio Tajima , Shigeru Horikoshi
IPC分类号： B62D5/04 , B62D6/10 , B62D15/02 , G01L3/10 , G01L5/22
CPC分类号： B62D6/10 , G01L3/104 , G01L3/109 , G01L5/221 , B60G2204/11
摘要： A device for detecting a load torque using angle detectors fitted with a certain spacing on a shaft which is rotated by a drive source and on the basis of a relative angular difference of angles detected by the angle detectors. The device includes two rotary drums or discs fitted with a certain spacing on the drive side and load side of the shaft, with a plurality of magnetic poles for generating magnetic signals being formed on the surface thereof, and a magnetic sensor disposed to confront the surface of the rotary drums or discs, with magnetic resistance effect elements which vary in internal resistance in response to the magnetism of the magnetic poles being provided thereon. The amount of torsion created by the load on the load side of the rotary shaft is measured as a phase difference of outputs of the magnetic sensor, and the torque is detected in terms of the angular difference between the magnetic drums or discs. The device is operative to detect a torque in both storage and rotation, and capable of detection within a period of magnetic signal, whereby high-accuracy, high-resolution torque detection is made possible.
摘要翻译：一种用于使用角度检测器检测负载转矩的装置，所述角度检测器在由驱动源旋转的轴上并且基于由角度检测器检测的角度的相对角度差异在轴上具有一定间隔。该装置包括两个旋转鼓或盘，其在驱动侧和负载侧安装一定间隔，在其表面上形成有用于产生磁信号的多个磁极和设置成面对表面的磁传感器具有响应于设置在其上的磁极的磁性而在内阻中变化的磁阻效应元件。由旋转轴的负载侧上的负载产生的扭转量作为磁传感器的输出的相位差被测量，并且根据磁鼓或盘之间的角度差来检测转矩。该装置用于检测存储和旋转两者中的转矩，并且能够在磁信号的一段时间内进行检测，由此可以实现高精度，高分辨率的扭矩检测。

8. 发明授权

US4786870A Magnetic sensor for magnetically detecting the position of a movable body 失效
标题翻译：磁传感器，用于磁性检测可移动体的位置
公开(公告)号：US4786870A
公开(公告)日：1988-11-22
申请号：US916699
申请日：1986-10-08
申请人： Syooichi Kawamata , Tadashi Takahashi , Kunio Miyashita
发明人： Syooichi Kawamata , Tadashi Takahashi , Kunio Miyashita
IPC分类号： G01D5/245 , G01B7/00 , G01D5/14 , G01D5/16 , G01D5/249 , H03M1/28 , G01B7/28
CPC分类号： G01D5/145 , H03M1/285
摘要： A magnetic position detector having a rotary magnetic recording medium which is movable with a movable body the position of which is to be detected. The rotary magnetic recording medium is divided into plural channels, each of which includes two tracks. A magnetic sensor is disposed to face the magnetic recording medium with a predetermined air gap therebetween and includes two sets of magnetoresistive elements spaced by a predetermined distance for each channel. Each set of magnetoresistive elements includes two elements wherein the first elements of the two sets face one of the tracks of a channel and the second elements of the other of the two sets faces the other track and the first and second elements of the two sets are formed as one body with adjacent ends of the first and second elements being coupled with each other. The coupled adjacent ends are connected to either one of first terminals for deriving output voltages from the magnetoresistive elements or to second terminals for supplying the magnetoresistive elements with source voltage. The non-adjacent ends of the first and second elements which are opposite to the coupled ends are connected to the other of the first and second terminals. In this manner, the sensor can be made small in size and the resistivity against noise is enhanced.
摘要翻译：一种具有旋转磁记录介质的磁性位置检测器，其可移动的位置被检测的可移动体。旋转磁记录介质被分成多个通道，每个通道包括两个轨道。磁传感器设置成面对磁记录介质，其间具有预定的气隙，并且包括为每个通道隔开预定距离的两组磁阻元件。每组磁阻元件包括两个元件，其中两组的第一元件面对通道的轨道中的一个，并且两组中的另一个的第二元件面对另一个轨道，并且两组的第一和第二元件是形成为一体，第一和第二元件的相邻端彼此连接。耦合的相邻端连接到用于从磁阻元件导出输出电压的第一端子中的任一个或用于向磁阻元件提供源极电压的第二端子。与耦合端相对的第一和第二元件的不相邻的端部连接到第一和第二端子中的另一个。以这种方式，可以使传感器尺寸变小，并提高抗噪声电阻率。

9. 发明授权

US4707695A Magnetic position sensor 失效
标题翻译：磁性位置传感器
公开(公告)号：US4707695A
公开(公告)日：1987-11-17
申请号：US510914
申请日：1983-07-05
申请人： Tadashi Takahashi , Kunio Miyashita , Syooichi Kawamata
发明人： Tadashi Takahashi , Kunio Miyashita , Syooichi Kawamata
IPC分类号： G01D5/14 , G01D5/244 , G01D5/245 , G01P3/487 , H03M1/00 , G08C19/06
CPC分类号： G01D5/145 , G01D5/2457 , H03M1/308
摘要： In a magnetic detector for receiving a reference position signal in movement from an encoder track and a reference track arranged on a member included in a magnetic position sensor, magnetic pickups respectively confronting to the encoder track and the reference track are provided and both tracks jointly yield a position reference signal.
摘要翻译：在用于从编码器轨道和布置在包括在磁位置传感器中的构件上的参考轨道接收基准位置信号的磁检测器中，提供分别面向编码器轨道和参考轨道的磁性拾取器，并且两个轨迹共同产生位置参考信号。

10. 发明授权

US4638225A Method and apparatus therefor in motor speed control 失效
标题翻译：电机速度控制方法及其设备
公开(公告)号：US4638225A
公开(公告)日：1987-01-20
申请号：US824923
申请日：1986-01-31
申请人： Shigeki Morinaga , Kunio Miyashita , Hiroshi Hayashida , Tadashi Takahashi
发明人： Shigeki Morinaga , Kunio Miyashita , Hiroshi Hayashida , Tadashi Takahashi
IPC分类号： H02P7/29 , H02P23/00 , H02P5/06
CPC分类号： H02P23/16 , Y10S388/912 , Y10S388/915 , Y10S388/921
摘要： A pulse width control apparatus and method for controlling motor speed wherein the number of pulses relating to more speed feedback data is counted so as to control the speed of the motor in accordance with a speed command data and a pulse width modulation signal based on the counted number of pulses. A free-running hardware timer and a soft-timer on a program controlled by an instruction execution time of a microcomputer are arranged so that ON-time data and OFF-time data of the pulse width modulation signal are selectively set in one and the other of the hardware and soft-timers in dependence on values of the ON and OFF times, respectively. The ON and OFF states of the pulse width modulation signal are changed when the contents of the hardware and soft-timers reach predetermined values so as to control the pulse width thereof.
摘要翻译：一种用于控制电动机速度的脉冲宽度控制装置和方法，其中对与更多速度反馈数据相关的脉冲数进行计数，以便根据速度指令数据和基于计数的脉宽调制信号来控制电动机的速度脉冲数。在由微计算机的指令执行时间控制的程序上的自由运行的硬件定时器和软件定时器被布置成使得脉冲宽度调制信号的接通时间数据和关断时间数据被选择性地设置在一个的硬件和软定时器分别依赖于ON和OFF时间的值。当硬件和软定时器的内容达到预定值以便控制其脉冲宽度时，改变脉宽调制信号的ON和OFF状态。

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