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公开(公告)号：US06573707B2
公开(公告)日：2003-06-03
申请号：US09943125
申请日：2001-08-30
IPC分类号： G01B700
CPC分类号： G01D5/2086
摘要： A scale and a detecting head each include input/output connectors. Either of the input/output connectors is connected to receiving-side connector. By connecting the receiving-side connector to either of the scale and the detecting head, which is fixed in use, there is no change that a receiving-side cable will be disconnected by movement of the counterpart of the fixed member. This results in improvement of the reliability. Additionally, device is operable at high speed since the cable does not restrict motion of the movable member.
摘要翻译： 刻度和检测头各自包括输入/输出连接器。 输入/输出连接器中的任一个连接到接收侧连接器。 通过将接收侧连接器连接到在使用中固定的刻度尺和检测头中的任一个，接收侧电缆将不会因固定部件的对应物的移动而被断开。 这导致可靠性的提高。 此外，由于电缆不限制可移动部件的运动，装置可高速操作。
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2.发明授权Relative-displacement detecting unit and relative-displacement detecting device 失效相对位移检测单元和相对位移检测装置公开(公告)号：US06597167B2
公开(公告)日：2003-07-22
申请号：US09911204
申请日：2001-07-23
申请人： Toshiharu Miyata , Tetsuro Kiriyama
发明人： Toshiharu Miyata , Tetsuro Kiriyama
IPC分类号： G01B714
CPC分类号： G01D5/2073 , H01F5/003 , H01F27/365
摘要： An encoder unit is disposed facing a scale. The encoder unit is constructed such that a processing circuit and a read head are integrally formed on one and the same semiconductor substrate. This construction results in size reduction and integral formation of the encoder unit.
摘要翻译： 编码器单元面向刻度尺设置。 编码器单元被构造成使得处理电路和读取头一体地形成在同一半导体衬底上。 这种结构导致编码器单元的尺寸减小和整体形成。
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3.发明授权Interpolation circuit for encoder having a look-up table memory with reduced capacity 失效具有减小容量的查找表存储器的编码器插值电路
公开(公告)号：US5999113A
公开(公告)日：1999-12-07
申请号：US59338
申请日：1998-04-14
申请人： Tetsuro Kiriyama , Mikiya Teraguchi
发明人： Tetsuro Kiriyama , Mikiya Teraguchi
CPC分类号： H03M1/207 , G01D5/24409 , H03M1/303
摘要： Output of an encoder are sampled by A/D converters 11a and 11b to be converted to N bits A-phase and B-phase digital data DA and DB. In a look-up table memory 12, reference phase angle data of phase divisions and average gradient vectors of changes in phase angle data within the phase divisions are stored, the phase divisions being addressed by the high order NU bits of data DA and DB. An arithmetic circuit 13 determines a vector inner product of an average gradient vector and phase-interpolating data represented by the low order NL bits of the data DA and DB to add the resultant to a phase angle data, thereby outputting an interpolated phase angle data.
摘要翻译： 编码器的输出由A / D转换器11a和11b采样，以被转换成N位A相和B相数字数据DA和DB。 在查找表存储器12中，相位分割的参考相位角数据和相位分割内的相位角数据的变化的平均梯度向量被存储，相位分割由数据DA和DB的高阶NU位寻址。 算术电路13确定由数据DA和DB的低阶NL位表示的平均梯度矢量和相位插值数据的向量内积，以将结果加到相位角数据上，从而输出内插相位角数据。
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4.发明授权公开(公告)号：US07485845B2
公开(公告)日：2009-02-03
申请号：US11566433
申请日：2006-12-04
申请人： Toru Yaku , Tetsuro Kiriyama
发明人： Toru Yaku , Tetsuro Kiriyama
IPC分类号： G01D5/34
CPC分类号： G01D5/34746
摘要： A three-grating type photoelectric encoder includes a second grating formed on a scale and first and third gratings disposed on a side of a detector. A part of at least the first grating is shifted in a direction of a measurement axis by P/(2n) (wherein P is a grating pitch, n is the order of a harmonic component to be removed) in order to remove a harmonic component of the nth order. This encoder can be improved with high accuracy by removing harmonic components without increasing manufacturing costs.
摘要翻译： 三光栅型光电编码器包括形成在刻度上的第二光栅和设置在检测器一侧的第一和第三光栅。 至少第一光栅的一部分在测量轴的方向上偏移P /（2n）（其中P是光栅间距，n是要去除的谐波分量的次数），以便去除谐波分量 的第n个顺序。 该编码器可以通过去除谐波分量而高精度地提高，而不增加制造成本。
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公开(公告)号：US07250881B2
公开(公告)日：2007-07-31
申请号：US11248365
申请日：2005-10-12
IPC分类号： H03M1/48
CPC分类号： G01D5/2448 , G01D5/24452 , G01D5/2449 , G01D5/24495
摘要： An offset error, an amplitude error, a phase error and a third harmonic component contained in two-phase sinusoidal signals are removed using relatively simple digital computations. An offset error contained in two-phase sinusoidal signals with a phase difference output from an encoder is detected and corrected. Then, an amplitude error contained in the offset-corrected two-phase sinusoidal signals is detected and corrected. Subsequently, a phase error contained in the amplitude-corrected two-phase sinusoidal signals is detected and corrected. Further, a third harmonic distortion contained in the phase-corrected two-phase sinusoidal signals is detected and corrected. Each correction step includes detecting an error from an ideal Lissajous waveform contained in the corrected two-phase sinusoidal signals, and adding the detected error to an accumulatively added last value to yield a new correction coefficient, thereby dynamically updating the correction coefficient.
摘要翻译： 使用相对简单的数字计算来消除两相正弦信号中包含的偏移误差，振幅误差，相位误差和三次谐波分量。 检测并纠正从编码器输出的相位差的两相正弦信号中包含的偏移误差。 然后，检测并校正偏移校正的两相正弦信号中包含的振幅误差。 随后，检测并纠正在幅度校正的两相正弦信号中包含的相位误差。 此外，检测并校正包含在相位校正的两相正弦信号中的三次谐波失真。 每个校正步骤包括从包含在校正的两相正弦信号中的理想的李萨如波形中检测误差，并将检测到的误差加到累加的最后值，以产生新的校正系数，从而动态地更新校正系数。
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公开(公告)号：US20070035417A1
公开(公告)日：2007-02-15
申请号：US11461556
申请日：2006-08-01
IPC分类号： H03M1/22
CPC分类号： H03M1/207 , G01D5/24404 , H03M1/303
摘要： Two-phase sinusoidal signals QA, QB output from an encoder are interpolated by sample-and-hold (S/H) circuits and A/D conversion (ADC) circuits, and data D is output in accordance with a data request signal RQ from exterior. For this interpolation of encoder output, a direction discrimination up/down counter is arranged near a two-phase square-wave uniform pulse generating circuit, and the data D is latched and output using a signal which is obtained by delaying the data request signal RQ. This can reduce synchronization errors between the data request signal RQ from exterior and the interpolated data, with an improvement in dynamic precision.
摘要翻译： 通过采样保持（S / H）电路和A / D转换（ADC）电路对编码器输出的两相正弦信号QA，QB进行内插，并根据数据请求信号RQ输出数据D 外观。 对于编码器输出的插值，在两相方波均匀脉冲发生电路附近设置方向鉴别向上/向下计数器，并且使用通过延迟数据请求信号RQ获得的信号来锁存和输出数据D 。 这可以减少来自外部的数据请求信号RQ和内插数据之间的同步误差，同时具有动态精度的提高。
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公开(公告)号：US07109900B2
公开(公告)日：2006-09-19
申请号：US11248669
申请日：2005-10-12
IPC分类号： H03M1/48
CPC分类号： G01D5/24452 , G01D5/2448 , G01D5/2449
摘要： A third harmonic distortion corrector is equipped for correcting a third harmonic distortion contained in a two-phase sinusoidal signals with different phases output from an encoder. A third harmonic calculator/detector calculates the amplitude a3 and the phase φ3 of the third harmonic using Fourier analysis, based on change in radius r of the Lissajous waveform output from a r-θ converter. The third harmonic distortion corrector corrects the third harmonic distortion of the two-phase sinusoidal signal A4, B4 based on the amplitude a3 and the phase φ3 of the third harmonic calculated.
摘要翻译： 三次谐波失真校正装置用于校正包含在从编码器输出的不同相位的两相正弦信号中的三次谐波失真。 三次谐波计算器/检测器基于傅立叶分析计算三次谐波的振幅a 3 3和相位φ3，基于由Lissajous波形输出的半径r的变化 一个r-θ转换器。 三次谐波失真校正器基于第三次谐波失真校正器的幅度a 3 3和3相位φ3 3校正两相正弦信号A 4，B 4的三次谐波失真。 谐波计算。
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公开(公告)号：US20060097141A1
公开(公告)日：2006-05-11
申请号：US11257895
申请日：2005-10-25
申请人： Tetsuro Kiriyama , Toru Yaku , Shingo Nihommori
发明人： Tetsuro Kiriyama , Toru Yaku , Shingo Nihommori
IPC分类号： G01D5/34
CPC分类号： G01D5/38 , G01D5/34715
摘要： A photoelectric encoder is provided, which emits light from a light source to a main scale and an index scale that can relatively move with respect to each other and obtains a light-receiving signal by interaction between the main scale and the index scale. The photoelectric encoder uses as the light source an incoherent semiconductor light source (white LED) in which a full width at half maximum of an emission spectrum is wider than that of a monochromatic semiconductor light source. Thus, it is possible to reduce an effect of a gap change on an output signal of the encoder and make positional adjustment easier, thereby improving misalignment characteristics.
摘要翻译： 提供了一种光电编码器，其从光源发射到主尺度的光，以及可以相对于彼此相对移动的指标，并通过主刻度和指标之间的相互作用获得光接收信号。 光电编码器使用发光光谱的半值全宽比单色半导体光源宽的非相干半导体光源（白色LED）作为光源。 因此，可以减小间隙变化对编码器的输出信号的影响，并且使位置调整更容易，从而提高不对准特性。
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9.发明授权公开(公告)号：US06636035B2
公开(公告)日：2003-10-21
申请号：US09804300
申请日：2001-03-13
IPC分类号： G01B700
CPC分类号： G01D5/2086 , G01D3/08
摘要： In an electronic caliper, a detecting circuit 112 detects displacement of a grid with respect to a scale, on the basis of a signal from a transducer 110. A CPU 114 displays the detected position on a display device 124. The CPU 114 performs error detection on the transducer, only when the relative speed of the grid with respect the scale is zero, or becomes equal to or smaller than a predetermined value. Since error detection is performed only at a predetermined timing, power consumption can be reduced.
摘要翻译： 在电子卡尺中，检测电路112基于来自换能器110的信号来检测格子相对于刻度的位移.CPU 114在显示装置124上显示检测到的位置.CPU 114执行错误检测 只有当网格相对于刻度的相对速度为零时，才能变为等于或小于预定值。 由于仅在预定定时执行错误检测，所以能够降低功耗。
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公开(公告)号：US5485468A
公开(公告)日：1996-01-16
申请号：US943548
申请日：1992-09-11
申请人： Tetsuro Kiriyama , Mahito Unno
发明人： Tetsuro Kiriyama , Mahito Unno
IPC分类号： G01B21/00 , G01D5/245 , H03M1/10 , H03M1/14 , H03M1/24 , H03M1/30 , G06F11/00 , H03M1/22 , H03M13/00
CPC分类号： H03M1/1076 , H03M1/143 , H03M1/24 , H03M1/30
摘要： A data output encoder capable of having its state of retaining internal error information and self-diagnostic information reset without recourse to removing power or furnishing a dedicated signal line. A reset pulse generator monitors the changing status of an externally provided output request signal. When the signal status reaches a predetermined pattern, the reset pulse generator generates reset pulses that cause an RS flip-flop circuit to reset the state in which the internal error information and self-diagnostic information are retained.
摘要翻译： 一种数据输出编码器，其能够具有保持内部错误信息和自诊断信息复位的状态，而不需要去除功率或提供专用信号线。 复位脉冲发生器监视外部提供的输出请求信号的变化状态。 当信号状态达到预定模式时，复位脉冲发生器产生复位脉冲，使复位脉冲使得RS触发器电路复位保持内部错误信息和自诊断信息的状态。
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