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1. 发明申请

US20170331486A1 High-Speed Successive Approximation Analog-to-Digital Converter of Two Bits per Circle 有权
公开(公告)号：US20170331486A1
公开(公告)日：2017-11-16
申请号：US15521178
申请日：2015-05-21
申请人： China Electronic Technology Corporation, 24th Research Institute
发明人： Dai-Guo Xu , Shi-Liu Xu , Gang-Yi Hu , Guang-Bing Chen , Jian-An Wang
IPC分类号： H03M1/08 , H03M1/10 , H03M1/20 , H03M1/28
CPC分类号： H03M1/0809 , H03M1/00 , H03M1/0695 , H03M1/1023 , H03M1/12 , H03M1/144 , H03M1/204 , H03M1/282
摘要： The present invention pertains to a high-speed successive approximation analog-to-digital converter of two bits per circle, includes three switches, two capacitor arrays, three comparators, an encoding circuit, a first switch array corresponding to the first capacitor array, a second switch array corresponding to the second capacitor array, a shifting register and a digital correction unit. The analog-to-digital converter, featuring doubled speed, realizes a successive approximation process without any fault when a high-bit large capacitor is unsettled. Thus no redundancy bit capacitor is required to compensate for unsettled pre-stage large capacitor. By using the encoding circuit, a thermometer code is converted into a binary code effectively, and inherent errors of comparators are reduced by the randomization of three comparators.

2. 发明申请

US20110208475A1 ABSOLUTE ANGLE CODING AND ANGLE MEASURING DEVICE 审中-公开
标题翻译：绝对角度编码和角度测量装置
公开(公告)号：US20110208475A1
公开(公告)日：2011-08-25
申请号：US13126699
申请日：2009-10-01
申请人： Christoph Lingk
发明人： Christoph Lingk
IPC分类号： G06F15/00
CPC分类号： G01D5/2492 , H03M1/282
摘要： An absolute angle coding that includes a first code sequence disposed within 360°, wherein the first code sequence has a first length and is disposed NA times in succession. The absolute angle coding includes a second code sequence disposed within 360°, wherein the second code sequence has a second length and is disposed NB times in succession, wherein the first code sequence and the second code sequence in combination absolutely unambiguously encode said 360°. In addition, NA is greater than or equal to 2 and NB is greater than or equal to 2 and NA is not equal to NB. The first length is not equal to the second length and the first code sequence and the second code sequence are disposed in one common track, in that a part of the first code sequence and a part of the second code sequence are disposed in alternation.
摘要翻译：一种绝对角度编码，其包括设置在360°内的第一编码序列，其中第一编码序列具有第一长度并且被连续布置为NA倍。绝对角度编码包括设置在360°内的第二代码序列，其中第二代码序列具有第二长度并且被连续布置为NB次，其中组合的第一代码序列和第二代码序列绝对地明确地编码所述360°。此外，NA大于或等于2，NB大于或等于2，NA不等于NB。第一长度不等于第二长度，并且第一代码序列和第二代码序列被布置在一个共同的轨道中，因为第一代码序列的一部分和第二代码序列的一部分被交替地布置。

3. 发明授权

US07105803B2 Rotary optical encoder 失效
标题翻译：旋转光学编码器
公开(公告)号：US07105803B2
公开(公告)日：2006-09-12
申请号：US10873116
申请日：2004-06-23
申请人： Hong-Cheng Sheu , Der-Seng Liang
发明人： Hong-Cheng Sheu , Der-Seng Liang
IPC分类号： G01D5/34
CPC分类号： H03M1/282 , G01D5/34715 , G01D5/3473 , H03M1/308
摘要： A rotary optical encoder is described to provide the pole position of the rotor in a permanently magnetized motor. Using a simple opening design of code tracks and two light sensors along with a corresponding processing circuit, only one additional code track is required on the code wheel to output phase-changing signals. Thus the rotary optical encoder with phase-changing signal with low cost and small size is implemented.
摘要翻译：描述了一种旋转光学编码器，以将转子的极位置提供给永久磁化的电动机。使用代码轨道和两个光传感器的简单开放设计以及相应的处理电路，码轮上仅需要一个附加的代码轨道来输出相位变化信号。因此，实现了具有低成本和小尺寸的相变信号的旋转光学编码器。

4. 发明授权

US06327791B1 Chain code position detector 失效
标题翻译：链码位置检测器
公开(公告)号：US06327791B1
公开(公告)日：2001-12-11
申请号：US09590895
申请日：2000-06-09
申请人： Richard J. Norcross , David P. Engvall , W. Robert Bunch
发明人： Richard J. Norcross , David P. Engvall , W. Robert Bunch
IPC分类号： G01B1102
CPC分类号： F15B15/2846 , F15B15/2876 , G01D5/2495 , G01D5/34792 , H03M1/282
摘要： A position detector for sensing the position of a movable member which moves along an axis relative to a stationary member. A nonrepeating N bit chain code embodied in a scale on the movable member runs along the axis. A detector fixed to the stationary member is positioned to sense a portion of the chain code. The detector has K elements (K>>N) generating a plurality of signals. A controller determines the position of the movable member relative to the stationary member as a function of the signals.
摘要翻译：一种位置检测器，用于感测沿相对于固定构件的轴线移动的可动构件的位置。以可移动部件的刻度实现的不重复的N位链码沿轴线延伸。固定到固定构件的检测器定位成感测链码的一部分。检测器具有产生多个信号的K个元件（K >> N）。控制器根据信号确定可移动部件相对于固定部件的位置。

5. 发明授权

US5563408A Absolute encoder having absolute pattern graduations and incremental pattern graduations with phase control 失效
标题翻译：绝对编码器具有绝对模式刻度和带相位控制的增量模式刻度
公开(公告)号：US5563408A
公开(公告)日：1996-10-08
申请号：US330113
申请日：1994-10-27
申请人： Tsuyoshi Matsumoto , Kou Ohno
发明人： Tsuyoshi Matsumoto , Kou Ohno
IPC分类号： G01D5/245 , G01D5/249 , H03M1/24 , H03M1/28 , H03M1/30 , G01D5/34
CPC分类号： H03M1/282 , G01D5/2455 , G01D5/2492 , H03M1/308
摘要： An absolute encoder having a coder in which an incremental pattern and an absolute pattern are arranged in parallel and a detector including sensors for detecting the incremental pattern and the absolute pattern respectively. The absolute encoder comprises a discriminater to discriminate a relative phase position of the coder and the detector in one pitch of the incremental pattern from an output of the sensor for detecting the incremental pattern, and a signal generator to generate a synchronizing signal when a discriminated phase position coincides with a predetemined phase position by means of an electric circuit in one pitch of the incremental pattern. The absolute pattern is read on the basis of the synchronizing signal at a position except for the boundary region between the minimum reading units.
摘要翻译：具有编码器的绝对编码器，其中增量图案和绝对图案被并列布置;检测器包括分别用于检测增量图案和绝对图案的传感器。该绝对编码器包括一个鉴别器，用于鉴别增量图案的一个间距中的编码器和检测器的相对相位位置与用于检测增量图形的传感器的输出，以及信号发生器，当鉴别相位位置与预调节相位位置一致，通过增量图案的一个间距中的电路。基于除了最小读取单位之间的边界区域以外的位置处的同步信号来读取绝对图案。

6. 发明授权

US5187546A Displacement measurement apparatus with dual wedge interferometers 失效
标题翻译：带双向干涉仪的位移测量装置
公开(公告)号：US5187546A
公开(公告)日：1993-02-16
申请号：US781035
申请日：1991-10-18
申请人： James S. Johnston
发明人： James S. Johnston
IPC分类号： G01D5/249 , G01D5/26 , G01D5/347 , H03M1/28
CPC分类号： G01D5/34792 , G01D5/2495 , G01D5/266 , G01D5/268 , H03M1/282
摘要： Displacement measurement apparatus (1) shown in FIG. 1 measures the position of a reading means (4) relative to a coded track (2) which carries a sequence of code elements (5). The track is encoded with a binary sequence such that reading a binary word at any position along the track uniquely identifies its position. The binary word is remotely sensed by a decoding means (18) via a fibre optic link (12). Position information is encoded optically by the reading means using an interferometer to frequency modulate the transmitted light and the decoding means has a second interferometer to analyse received light and produce an electrical output representing the binary word.
摘要翻译：位移测量装置（1） 1测量读取装置（4）相对于承载代码元素（5）序列的编码轨道（2）的位置。轨道用二进制序列编码，使得沿着轨道的任何位置读取二进制字唯一地标识其位置。二进制字由解码装置（18）经由光纤链路（12）远程感测。位置信息由读取装置使用干涉仪进行光学编码，以便对透射光进行频率调制，并且解码装置具有第二干涉仪来分析所接收的光并产生表示二进制字的电输出。

7. 发明授权

US5068529A Absolute position detection encoder 失效
标题翻译：绝对位置检测编码器
公开(公告)号：US5068529A
公开(公告)日：1991-11-26
申请号：US453986
申请日：1989-12-20
申请人： Kou Ohno , Tetsuo Hattori , Tsuyoshi Matsumoto
发明人： Kou Ohno , Tetsuo Hattori , Tsuyoshi Matsumoto
IPC分类号： G01D5/249 , H03M1/28 , H03M1/30
CPC分类号： G01D5/2492 , H03M1/282 , H03M1/308
摘要： An absolute position detection encoder includes a coder having a track provided with first graduations of an absolute pattern and second graduations of an incremental pattern, plural sensors movable relative to the coder along the longitudinal direction of the track, and a signal processing circuit for processing detection pulse trains, obtained upon reading the first graduations by the sensors, in synchronism with the time point corresponding to approximately the mid position of the minimum reading unit of the first graduation. The encoder outputs the relative position between the coder and the sensors in the form of parallel code signals as the absolute position read out from the absolute pattern graduations on the coder. By detecting the absolute pattern in synchronism with the time point corresponding to substantially the middle of the minimum reading unit of the first graduations, an absolute position detection signal of the correct code contents free of readout errors may be taken out for both the forward and reverse directions of the relative movement. On account of the signal selection function by the binary repetitive rectangular signal obtained from the incremental pattern reading results, the absolute position detection signal of the correct code contents may be taken out simultaneously with turn-on of the power source. The binary repetitive rectangular signal may also be used for generating a sub-scale signal for substantially improving the resolving power.
摘要翻译：绝对位置检测编码器包括编码器，该编码器具有设置有绝对图案的第一刻度和增量图案的第二刻度的多个传感器，沿着轨道的纵向相对于编码器可移动的多个传感器，以及用于处理检测的信号处理电路与第一刻度的最小读取单元的大致中间位置对应的时间点同步地由传感器读取第一刻度而获得的脉冲序列。编码器以编码器的形式从绝对位置读出的绝对位置以并行码信号的形式输出编码器和传感器之间的相对位置。通过与第一刻度的基本上与最小读取单元的大致中间相对应的时间点同步地检测绝对图案，可以取出没有读出误差的正确代码内容的绝对位置检测信号，用于正向和反向方向相对运动。由于通过从增量图案读取结果获得的二进制重复矩形信号的信号选择功能，可以在电源的接通时同时取出正确的代码内容的绝对位置检测信号。二进制重复矩形信号也可以用于产生用于大大提高分辨率的子标度信号。

8. 发明授权

US4779211A Position sensor 失效
标题翻译：位置传感器
公开(公告)号：US4779211A
公开(公告)日：1988-10-18
申请号：US774488
申请日：1985-09-10
申请人： Adrian A. C. March
发明人： Adrian A. C. March
IPC分类号： G01B21/00 , G01D5/244 , G01D5/245 , G01D5/249 , G01D5/30 , H03M1/28 , H03M1/30 , G01B3/02 , G01D5/34
CPC分类号： H03M1/282 , G01D5/2497 , H03M1/308
摘要： A position sensor has a detector having a plurality of sensitive elements which are acted on by indicia of a scale so that each sensitive element detects overlap between itself and one or more indicia of the scale. The outputs of the sensitive elements are modified by weighting values so that there is one position of detector and scale where the sum of the outputs has a unique characteristic. This position can be detected by means analyzing the sum of the outputs, and can then detect displacement of scale and detector from that one position. The indicia used have a non-uniform pattern, but other indicia with a pitch less than twice but not equal to the pitch of the sensitive elements may be provided to permit interpolation to fractions of the pitch of the sensitive elements. Further interpolation may be provided by a register through which signals propagate at a rate which is a multiple of the rate they are received. The register elements modify the signals by weighting values and the sum of the register element outputs is determined.
摘要翻译：位置传感器具有检测器，其具有多个敏感元件，这些敏感元件通过标尺的标记作用，使得每个敏感元件检测其自身与标尺的一个或多个标记之间的重叠。敏感元件的输出通过加权值进行修改，使得检测器和刻度的一个位置的输出之和具有独特的特性。可以通过分析输出的总和来检测该位置，然后可以从该位置检测刻度和检测器的位移。使用的标记具有不均匀的图案，但是可以提供具有小于两倍但不等于敏感元件的间距的间距的其他标记，以允许插值到敏感元件的间距的分数。可以通过寄存器提供进一步的插值，寄存器以信号以它们被接收的速率的倍数的速率传播信号。寄存器元件通过加权值修改信号，确定寄存器元件输出的和。

9. 发明授权

US4604725A Rotary apparatus having code track with pseudo-random binary digit sequence for indicating rotational position 失效
标题翻译：具有用于指示旋转位置的伪随机二进制数字序列的码轨的旋转装置
公开(公告)号：US4604725A
公开(公告)日：1986-08-05
申请号：US495389
申请日：1983-05-17
申请人： George G. Davies , Stuart M. McGlade , Peter L. Dunn
发明人： George G. Davies , Stuart M. McGlade , Peter L. Dunn
IPC分类号： H03M1/22 , G01D5/249 , H03M1/00 , G06F15/20 , G06F7/58
CPC分类号： G01D5/2495 , H03M1/282 , H03M1/308
摘要： A code track on a rotable member (e.g., a disc) defines a pseudo-random sequence of binary digits consisting of ones and noughts. The pseudo-random sequence extends continuously around the rotatable member and includes a given number of n consecutive noughts. The binary digits of the sequence are arranged so that each group of n adjacent digits is different from each other group of n adjacent in the pseudo-random sequence. A reading mechanism is operatively positioned relative to the code track for reading n consecutive digits of the pseudo-random sequence, wherein each n consecutive digits of the pseudo-random sequence define a position of the rotatable member.
摘要翻译：可旋转构件（例如，盘）上的代码轨道定义了由一个和多个组成的二进制数字的伪随机序列。伪随机序列围绕可旋转构件连续延伸并且包括给定数量的n个连续的Noughts。序列的二进制数字被排列成使得每个n个相邻数字组在伪随机序列中与n个相邻的其他组不同。读取机构相对于代码轨迹可操作地定位以读取伪随机序列的n个连续数字，其中伪随机序列的每个n个连续数字限定可旋转部件的位置。

10. 发明授权

US4110611A Optical position transducer 失效
标题翻译：光学位置传感器
公开(公告)号：US4110611A
公开(公告)日：1978-08-29
申请号：US641630
申请日：1975-12-17
申请人： Lewis H. Tann , William L. Mueller , Arthur D. Vis
发明人： Lewis H. Tann , William L. Mueller , Arthur D. Vis
IPC分类号： G01D5/252 , G01D5/347 , H03M1/00 , H01J3/14
CPC分类号： G01D5/34792 , G01D5/252 , H03M1/282
摘要： A pneumatic powered probe having a rod that extends into contact with the surface of a workpiece to gauge its position includes optics and electronic circuitry for generating a binary signal proportional to the position of the probe end. The circuitry includes a parallel channel optical mask that moves with the rod between a set of light emitting diodes and a set of photo-transistors, both supported on a circuit board. Transistor circuitry supported on the board converts the outputs of the photo-transistors into a binary parallel code which may be transmitted to a remote location upon receipt of an enabling signal by a plurality of gates in the device. The rod is connected to a cylinder which cooperates with a piston fixed to the device housing. Air admitted into the chamber between the piston and cylinder force outward motion of the rod. The optical mask is supported on the cylinder and moves with it relative to the diodes and photo-transistors to generate the position related signal.
摘要翻译：具有延伸成与工件的表面接触以测量其位置的杆的气动动力探头包括用于产生与探针端的位置成比例的二进制信号的光学和电子电路。电路包括平行通道光学掩模，该平行通道光学掩模随着杆在一组发光二极管和一组光电晶体管之间移动，两者都支撑在电路板上。板上支持的晶体管电路将光电晶体管的输出转换成二进制并行码，当二进制并行码通过设备中的多个门接收到启用信号时，可以将其传输到远程位置。杆连接到与固定到装置壳体的活塞配合的气缸。在活塞和气缸之间进入腔室的空气强制杆的向外运动。光学掩模支撑在圆柱体上并且相对于二极管和光电晶体管移动以产生位置相关信号。

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