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21. 发明申请

US20170075280A1 ROTATION DETECTING UNIT, SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS 有权
标题翻译：旋转检测单元，进纸装置和图像形成装置
公开(公告)号：US20170075280A1
公开(公告)日：2017-03-16
申请号：US15256999
申请日：2016-09-06
申请人： CANON KABUSHIKI KAISHA
发明人： Masato Suzuki
IPC分类号： G03G15/00 , B65H7/14 , B65H3/06 , B65H1/04 , B65H1/08
CPC分类号： B65H7/14 , B65H1/04 , B65H1/08 , B65H3/0607 , B65H3/0661 , B65H2511/515 , B65H2513/40 , B65H2553/412 , B65H2553/51 , G01D5/34 , G01D5/3473 , G01D5/34784 , G03G15/6511 , G03G2215/00396 , G03G2215/0132 , B65H2220/01 , B65H2220/11 , B65H2220/03
摘要： A rotation detecting unit includes a light emitting device, a light receiving device, an output device, a rotatable plate, and a discriminating device. The rotatable plate includes a first portion and a second portion which are alternately provided along a circumferential direction, a third portion provided between the first portion and the second portion, and a fourth portion provided between the second portion and the first portion. When a region of the first portion is irradiated with light emitted from the light emitting device and received by the light receiving device, received light quantity of the light receiving device is a maximum. When a region of the second portion is irradiated with the light, the received light quantity is a minimum. When the third or fourth portion is irradiated with the light, the received light quantity is larger than the minimum and is smaller than the maximum.
摘要翻译：旋转检测单元包括发光装置，光接收装置，输出装置，可旋转板和鉴别装置。可旋转板包括沿圆周方向交替设置的第一部分和第二部分，设置在第一部分和第二部分之间的第三部分，以及设置在第二部分和第一部分之间的第四部分。当第一部分的区域被从发光装置发射并被光接收装置接收的光照射时，光接收装置的接收光量最大。当第二部分的区域被光照射时，接收的光量是最小的。当第三或第四部分被光照射时，接收光量大于最小值并且小于最大值。

22. 发明授权

US09470557B2 Encoder and apparatus using encoder 有权
标题翻译：使用编码器的编码器和装置
公开(公告)号：US09470557B2
公开(公告)日：2016-10-18
申请号：US14484467
申请日：2014-09-12
申请人： CANON KABUSHIKI KAISHA
发明人： Chihiro Nagura
IPC分类号： G01D5/34 , G01D5/347 , G01B11/14 , G01B11/26 , G01D5/24 , G01D5/249
CPC分类号： G01D5/3473 , G01B11/14 , G01B11/26 , G01D5/24 , G01D5/2497 , G01D5/34784 , G01D5/34792
摘要： The encoder includes a scale provided with first and second periodic patterns, a sensor movable relatively with respect to the scale and including a detection element array to detect the first and second periodic patterns, a periodic signal producer to produce, by using output from the detection element array, a first periodic signal changing corresponding to a first period of the first periodic pattern and a second periodic signal changing corresponding to a second period of the second periodic pattern, and a correction signal producer to produce, by using the second periodic signal, a correction signal for reducing in the first periodic signal a signal component changing corresponding to the second period. A position calculator produces, by using the first periodic signal and the correction signal, information indicating position.
摘要翻译：编码器包括具有第一和第二周期性图案的刻度，相对于刻度尺可移动的传感器，并且包括检测元件阵列以检测第一和第二周期性图案，周期性信号发生器通过使用来自检测器的输出元件阵列，对应于第一周期性图案的第一周期的第一周期性信号和对应于第二周期性图案的第二周期的第二周期性信号变化;以及校正信号产生器，通过使用第二周期信号，校正信号，用于在第一周期信号中减少对应于第二周期的信号分量变化。位置计算器通过使用第一周期信号和校正信号产生指示位置的信息。

23. 发明授权

US09417101B2 Optical encoder with a scale that has fine and coarse pitch patterns 有权
标题翻译：具有精细和粗略俯仰图案的刻度的光学编码器
公开(公告)号：US09417101B2
公开(公告)日：2016-08-16
申请号：US13404313
申请日：2012-02-24
申请人： Chihiro Nagura
发明人： Chihiro Nagura
IPC分类号： G01D5/34 , G01D5/347
CPC分类号： G01D5/34746 , G01D5/3473 , G01D5/34784
摘要： An optical encoder includes a light source, a scale which is irradiated by the light source and has a fine pitch pattern and a coarse pitch pattern in a measuring direction in one track, a high resolution detection sensor array which receives light from the scale and detects the fine pitch pattern, and a low resolution detection sensor array which receives light from the scale and detects the coarse pitch pattern. A transmittance distribution or a reflectivity distribution of the scale is a distribution obtained by summing up a modulation component which corresponds to the fine pitch pattern and in which integrated values in a direction perpendicular to the measuring direction form modulation amplitude uniform in the measuring direction and a modulation component which corresponds to the coarse pitch pattern and in which modulation amplitude is uniform in the measuring direction.
摘要翻译：一种光学编码器，包括光源，由光源照射的刻度尺，并且在一个轨道中的测量方向上具有精细的俯仰图案和粗略的俯仰图案;高分辨率检测传感器阵列，其接收来自刻度的光并检测精细音调图案和低分辨率检测传感器阵列，其接收来自刻度的光并检测粗略俯仰图案。标尺的透射率分布或反射率分布是通过将对应于细间距图案的调制分量相加而得到的分布，其中在与测量方向垂直的方向上的积分值形成在测量方向上均匀的调制振幅，调制分量对应于粗略俯仰图案，调制振幅在测量方向上是均匀的。

24. 发明授权

US08829421B2 Optical encoder 有权
标题翻译：光学编码器
公开(公告)号：US08829421B2
公开(公告)日：2014-09-09
申请号：US14000736
申请日：2011-11-30
申请人： Takuya Noguchi , Hajime Nakajima , Takeshi Musha , Yoshinao Tatei , Takashi Hirai
发明人： Takuya Noguchi , Hajime Nakajima , Takeshi Musha , Yoshinao Tatei , Takashi Hirai
IPC分类号： G01D5/34 , G01D5/347
CPC分类号： G01D5/3473 , G01D5/34784
摘要： An optical encoder includes: an optical scale having periodical optical patterns and can be relatively and angularly displaced; a projector for irradiating the optical scale with light; a light receiver for receiving light from the optical scale; and a calculator for calculating an absolute rotation angle θ of the optical scale in accordance with a signal from the light receiver. The optical patterns include a plurality of light shielding portions and a plurality of light transmitting portions, each of the portions being located alternately. When a pitch of an n-th light shielding portion in a predetermined circumferential direction is denoted by Pn and a width of the n-th light shielding portion is denoted by Wn, a transmissivity T(θn) corresponding to an angle θn of the n-th light shielding portion and the pitch Pn of the light shielding portion satisfy predetermined equations, and the width Wn of the light shielding portion in the optical pattern varies in accordance with a function of the pitch Pn of the light shielding portion.
摘要翻译：光学编码器包括：具有周期性光学图案并且可以相对且角度位移的光学秤; 用于用光照射光标的投影仪; 用于接收来自光学刻度尺的光的光接收器; 和用于计算绝对旋转角度的计算器; 根据来自光接收器的信号。光学图案包括多个遮光部分和多个透光部分，每个部分交替设置。当以Pn表示第n个遮光部分的预定圆周方向的间距，并将第n个遮光部分的宽度表示为Wn时，对应于角度θ的透射率T（＆amp; t; n）第n个遮光部分的n和遮光部分的间距Pn满足预定的方程式，并且光学图案中的遮光部分的宽度Wn根据遮光部分的间距Pn的函数而变化。

25. 发明申请

US20140146326A1 OPTICAL POSITION-MEASURING DEVICE 有权
标题翻译：光学位置测量装置
公开(公告)号：US20140146326A1
公开(公告)日：2014-05-29
申请号：US14079666
申请日：2013-11-14
申请人： DR. JOHANNES HEIDENHAIN GmbH
发明人： Mario Himmel , Jarno Waetzig , Thomas Juenemann
IPC分类号： G01D5/347
CPC分类号： G01D5/347 , G01D5/26 , G01D5/266 , G01D5/32 , G01D5/34784
摘要： An optical position-measuring device includes a measuring standard having a first grating in a form of a periodic incremental graduation and an absolute mark. A scanning unit is displaceable relative to the measuring standard in a measuring direction. The scanning unit has at least one second grating disposed at a scanning distance from the first grating. A first detector array is configured to obtain a first scanning signal for purposes of position determination in which the gratings are illuminated with light of a first wavelength. A second detector array is configured to obtain a second scanning signal for purposes of position determination in which the absolute mark is illuminated with light of a second wavelength. The first wavelength is shorter than the second wavelength.
摘要翻译：光学位置测量装置包括具有周期性增量刻度形式的第一光栅和绝对标记的测量标准。扫描单元相对于测量标准在测量方向上是可移动的。扫描单元具有设置在离第一光栅扫描距离处的至少一个第二光栅。第一检测器阵列被配置为获得用于位置确定的第一扫描信号，其中光栅被第一波长的光照射。第二检测器阵列被配置为获得用于位置确定的第二扫描信号，其中绝对标记被第二波长的光照射。第一波长比第二波长短。

26. 发明授权

US08044339B2 Intensity-based optical encoder using digital diffractive optic regions 有权
$Intensity-based optical encoder using digital diffractive optic regions$
标题翻译：基于强度的光学编码器采用数字衍射光学区域
公开(公告)号：US08044339B2
公开(公告)日：2011-10-25
申请号：US12348272
申请日：2009-01-02
申请人： Christopher C. Chang , Bernard C. Kress
发明人： Christopher C. Chang , Bernard C. Kress
IPC分类号： G01D5/34 , H03M1/22
CPC分类号： G01D5/34776 , G01D5/34784 , G01D5/38
摘要： An optical encoder and method for measuring displacement information using an optical encoder uses an encoder member with multiple digital diffractive optic regions to optically diffract an incident beam of light to produce output beams of light having intensity distribution patterns, which are used to generate electrical signals that provide relative displacement information of the encoder member.
摘要翻译：用于使用光学编码器测量位移信息的光学编码器和方法使用具有多个数字衍射光学区域的编码器构件来光学衍射入射光束以产生具有强度分布图案的输出光束，其用于产生电信号，提供编码器构件的相对位移信息。

27. 发明授权

US07689380B2 Device and method for sensing a position of a drive unit 失效
标题翻译：用于感测驱动单元位置的装置和方法
公开(公告)号：US07689380B2
公开(公告)日：2010-03-30
申请号：US11974893
申请日：2007-10-16
申请人： Uwe Krause , Heinz Ludwig , Uwe Nolte , Guido Sonntag
发明人： Uwe Krause , Heinz Ludwig , Uwe Nolte , Guido Sonntag
IPC分类号： G01B11/26
CPC分类号： G01D5/2452 , G01D5/34784
摘要： The invention relates to a device and a method for sensing a position of a drive unit, in which the position can be sensed by an incremental signal transmitter having a first degree of accuracy which is described by a first travel increment or angle increment, and can be fed to a converter by which the first degree of accuracy of the sensing of the position can be reduced to a second degree of accuracy which is described by a second travel increment or angle increment.
摘要翻译：本发明涉及一种用于感测驱动单元的位置的装置和方法，其中位置可以由具有第一精度的增量信号发射器感测，该精度由第一行程增量或角度增量来描述，并且可以被馈送到转换器，通过该转换器，位置感测的第一精度可以被降低到由第二行程增量或角度增量描述的第二精确度。

28. 发明授权

US07145131B2 Absolute encoder 有权
标题翻译：绝对编码器
公开(公告)号：US07145131B2
公开(公告)日：2006-12-05
申请号：US10911471
申请日：2004-08-05
申请人： Seiichiro Mizuno , Yukinobu Sugiyama
发明人： Seiichiro Mizuno , Yukinobu Sugiyama
IPC分类号： G01D5/34
CPC分类号： G01D5/34784 , G01D5/34776
摘要： The first opening 31 and second opening 32 are formed in the rotating plate 3 attached to the rotation axis 2 of an absolute encoder 1 in a prescribed positional relation, and a two-dimensional profile sensor 5 is installed so as to face the lower side 3a of the rotating plate 3. Also, a light supplying unit 4 consisting of light sources 41 and 42 is installed so as to face the photosensitive area of the profile sensor 5 with the openings 31 and 32 of the rotating plate 3 placed therebetween. And, based on a correlation between the first detected position P1 and second detected position P2 where measuring light emitted from the light sources 41 and 42 is passed through the openings 31 and 32 of the rotating plate 3 and is detected by the profile sensor 5, an absolute value of the rotating angle of the rotation axis 2 is calculated, wherein it is possible to achieve an absolute encoder capable of accurately measuring the absolute value of the rotating angle of the rotation axis with a simple construction.
摘要翻译：第一开口31和第二开口32以规定的位置关系形成在安装在绝对编码器1的旋转轴2上的旋转板3中，并且二维轮廓传感器5安装成面向下侧3 a的旋转板3。此外，由光源41和42组成的光供给单元4安装成与轮廓传感器5的感光区域相对，其中旋转板3的开口31和32位于它们之间。并且，基于第一检测位置P 1和第二检测位置P 2之间的相关性，其中测量从光源41和42发射的光通过旋转板3的开口31和32，并由轮廓传感器检测如图5所示，计算旋转轴2的旋转角度的绝对值，其中可以以简单的结构实现能够精确地测量旋转轴的旋转角度的绝对值的绝对编码器。

29. 发明申请

US20040056184A1 Code (ring) with two pairs of periodic line patterns 失效
标题翻译：代码（环），带有两对周期性的线条图案
公开(公告)号：US20040056184A1
公开(公告)日：2004-03-25
申请号：US10433550
申请日：2003-06-04
发明人： Siegbert Steinlechner , Axel Wenzler , Klaus Marx , Franz Jost
IPC分类号： G01D005/34
CPC分类号： B62D6/10 , B62D15/0215 , G01D5/2451 , G01D5/2452 , G01D5/34784 , G01L3/12 , G01L5/221
摘要： A method for optical measuring data acquisition of a component that moves in a rotatory or translatory manner, in particular for optical angle, torque, or distance measurement, with the following steps: generation of a first pair of periodic line patterns extending in the movement direction of the component, which each have n periods over the movement range of the moving component, in particular a definable distance or an angular range, for example of 360null, wherein the line patterns are disposed in a fixed phase relationship to one another, generation of a second pair of periodic line patterns extending in the movement direction of the component, which each have m periods, in particular nnull1 periods, over the movement range of the moving component, in particular a definable distance or an angular range, for example of 360null, wherein the line patterns are disposed in a fixed phase relationship to one another, determination of respective phases of the line patterns of the first pair in relation to respective reference values perpendicular to the movement direction of the component, determination of respective phases of the line patterns of the second pair in relation to respective reference values perpendicular to the movement direction of the component, determination of the phase position of the first pair of line patterns on the basis of the phases, determination of the phase position of the second pair of line patterns on the basis of the phases, and determination of the position of the component on the basis of the phase positions.
摘要翻译：一种用于光学测量数据采集的方法，该组件以旋转或平移方式（特别是光学角度，扭矩或距离测量）移动，具有以下步骤：产生沿运动方向延伸的第一对周期性线图案其分别在运动部件的移动范围内具有n个周期，特别是可定义的距离或角度范围，例如360°，其中线图案彼此以固定的相位关系设置，产生在组件的移动方向上延伸的第二对周期性线图案，其中每个具有m个周期，特别是n + 1个周期，在移动部件的运动范围内，特别是可定义的距离或角度范围，用于例如360°，其中线图案彼此以固定的相位关系设置，确定第一对的线图案在r 与垂直于部件的移动方向的各个参考值相关，确定第二对的线图案相对于垂直于部件的移动方向的各个参考值的各个相位的确定，第一对的相位位置的确定基于相位的线图案，基于相位确定第二对线图案的相位位置，以及基于相位位置确定部件的位置。

30. 发明授权

US06304190B1 Method for determining the absolute angular position of the steering wheel of a motor vehicle, and optoelecronic steering angle sensor 失效
标题翻译：用于确定机动车辆的方向盘的绝对角位置的方法以及光电转向角传感器
公开(公告)号：US06304190B1
公开(公告)日：2001-10-16
申请号：US09446212
申请日：2000-01-14
申请人： Frank Blasing
发明人： Frank Blasing
IPC分类号： G08B2100
CPC分类号： G01B11/024 , G01D5/34784
摘要： A method of determining the angular position of the steering wheel of a motor vehicle using an optoelectronic steering angel sensor includes disposing a code transmitter between the light source and the line sensor. The line sensor has image points positioned along a line at equal intervals with respect to one another. The line sensor is operable for generating light signals as a function of the position and intensity of light traces imaged onto the image points of the line sensor. The code transmitter concentrically surrounds a steering spindle of a steering wheel of a motor vehicle and is fixed to the steering spindle to rotate therewith. The code transmitter has a scanning line and a reference line for respectively imaging a scanning light trace and a reference light trace from the light source onto the image points of the line sensor. The distance between the scanning line and the reference line is different at each angular position of the steering wheel such that the number of image points between the scanning light trace and the reference light trace imaged onto the line sensor is different at each angular position of the steering wheel. The scanning light trace and the reference light trace each have a respective bright-dark light transition region imaged onto at least two image points of the line sensor. The intensity of the bright-dark transition region varies over the at least two image points. A scanning light signal and a reference light signal generated by the line senor in response to the scanning light trace and the reference light trace imaged onto the line sensor is processed to determine the angular position of the steering wheel as a function of the number of image points between the respective bright-dark light transition regions of the scanning light trace and the reference light trace.
摘要翻译：使用光电转向天使传感器确定机动车辆的方向盘的角位置的方法包括在光源和线传感器之间布置代码发送器。线传感器具有相对于彼此以相等间隔沿着线定位的图像点。线传感器可用于产生作为成像到线传感器的图像点上的光迹的位置和强度的函数的光信号。代码发送器同心地围绕机动车辆的方向盘的转向主轴并且固定到转向主轴以与其一起旋转。代码发送器具有用于分别将来自光源的扫描光迹线和参考光迹线成像到线传感器的图像点上的扫描线和参考线。扫描线与参考线之间的距离在方向盘的每个角位置上是不同的，使得在扫描光轨迹和成像到线传感器上的参考光轨迹之间的图像点的数量在方向盘。扫描光迹线和参考光迹线各自具有成像到线传感器的至少两个图像点上的相应的明暗的光过渡区域。亮 - 暗过渡区域的强度在至少两个图像点上变化。根据扫描光迹线和成像在线传感器上的参考光线路，线路传感器产生的扫描光信号和参考光信号被处理以确定方向盘的角位置作为图像数量的函数在扫描光迹线的各个明暗的光过渡区域和参考光迹线之间的点。

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