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1. 发明申请

US20050133705A1 Absolute encoder employing concatenated, multi-bit, interpolated sub-encoders 失效
标题翻译：采用级联，多位内插子编码器的绝对编码器
公开(公告)号：US20050133705A1
公开(公告)日：2005-06-23
申请号：US10990769
申请日：2004-11-17
申请人： Alva Hare , William Thorburn , Keith Hinrichs
发明人： Alva Hare , William Thorburn , Keith Hinrichs
IPC分类号： G01D20060101 , G01D5/34 , H03M1/22
CPC分类号： G01D5/2458
摘要： An absolute encoder employs multiple sub-encoders of different resolutions and a linking algorithm for combining the sub-encoder outputs to form an accurate, high-resolution position estimate. The sub-encoders can utilize edge modulation of a main grating track, sloped patterns of successively higher periods, and other types of scale patterns. The sub-encoders can also use a variety of detector types suitable for the patterns being used. In one linking approach, pairs of tracks are linked together successively by applying a phase shift to the coarser track and then combining it with the finer track such that the transitions of the coarse track estimates become aligned with those of the finer track, whereupon the values can be combined to form a linked position estimate. In another approach, beat tracks are calculated from physical tracks of similar period, and the beat tracks are used as the coarser tracks in the linking process.
摘要翻译：绝对编码器采用不同分辨率的多个子编码器和用于组合子编码器输出的链接算法，以形成准确的高分辨率位置估计。子编码器可以利用主光栅的边缘调制，连续更高周期的倾斜图案和其他类型的刻度图案。子编码器还可以使用适合所使用的图案的各种检测器类型。在一种链接方法中，通过对较粗的轨道施加相移然后将其与更细的轨道组合，使得成对的轨道连续地连接在一起，使得粗略轨道估计的转变与较细轨道的转变对准，于是值可以组合形成一个链接的位置估计。在另一种方法中，拍摄轨迹由相似周期的物理轨道计算，拍子轨迹用作链接过程中较粗的轨道。

2. 发明申请

US20050258986A1 Precision material-handling robot employing high-resolution, compact absolute encoder 失效
标题翻译：精密材料处理机器人采用高分辨率，紧凑型绝对编码器
公开(公告)号：US20050258986A1
公开(公告)日：2005-11-24
申请号：US11137675
申请日：2005-05-25
申请人： Alva Hare , Keith Hinrichs , William Thorburn
发明人： Alva Hare , Keith Hinrichs , William Thorburn
IPC分类号： G01D5/34 , H03M1/22
CPC分类号： G01D5/2458
摘要： An absolute encoder employs multiple sub-encoders of different resolutions and a linking algorithm for combining the sub-encoder outputs to form an accurate, high-resolution position estimate. The sub-encoders can utilize edge modulation of a main grating track, sloped patterns of successively higher periods, and other types of scale patterns. The sub-encoders can also use a variety of detector types suitable for the patterns being used. In one linking approach, pairs of tracks are linked together successively by applying a phase shift to the coarser track and then combining it with the finer track such that the transitions of the coarse track estimates become aligned with those of the finer track, whereupon the values can be combined to form a linked position estimate. In another approach, beat tracks are calculated from physical tracks of similar period, and the beat tracks are used as the coarser tracks in the linking process. A wafer-handling robot employs the absolute encoder for controlling rotation of multiple joints.
摘要翻译：绝对编码器采用不同分辨率的多个子编码器和用于组合子编码器输出的链接算法，以形成准确的高分辨率位置估计。子编码器可以利用主光栅的边缘调制，连续更高周期的倾斜图案和其他类型的刻度图案。子编码器还可以使用适合所使用的图案的各种检测器类型。在一种链接方法中，通过对较粗的轨道施加相移然后将其与更细的轨道组合，使得成对的轨道连续地连接在一起，使得粗略轨道估计的转变与较细轨道的转变对准，于是值可以组合形成一个链接的位置估计。在另一种方法中，拍摄轨迹由相似周期的物理轨道计算，拍子轨迹用作链接过程中较粗的轨道。晶片处理机器人采用绝对编码器来控制多个关节的旋转。

3. 发明申请

US20070246647A1 ABSOLUTE ENCODER EMPLOYING LINKED SUB-ENCODERS AND BEAT TRACK 失效
标题翻译：使用链接子编码器和BEAT TRACK的绝对编码器
公开(公告)号：US20070246647A1
公开(公告)日：2007-10-25
申请号：US11770094
申请日：2007-06-28
申请人： Alva Hare , William Thorburn , Keith Hinrichs
发明人： Alva Hare , William Thorburn , Keith Hinrichs
IPC分类号： G01D5/34
CPC分类号： G01D5/2458
摘要： An absolute encoder employs multiple sub-encoders of different resolutions and a linking algorithm for combining the sub-encoder outputs to form an accurate, high-resolution position estimate. The sub-encoders can utilize edge modulation of a main grating track, sloped patterns of successively higher periods, and other types of scale patterns. The sub-encoders can also use a variety of detector types suitable for the patterns being used. In one linking approach, pairs of tracks are linked together successively by applying a phase shift to the coarser track and then combining it with the finer track such that the transitions of the coarse track estimates become aligned with those of the finer track, whereupon the values can be combined to form a linked position estimate. In another approach, beat tracks are calculated from physical tracks of similar period, and the beat tracks are used as the coarser tracks in the linking process.
摘要翻译：绝对编码器采用不同分辨率的多个子编码器和用于组合子编码器输出的链接算法，以形成准确的高分辨率位置估计。子编码器可以利用主光栅的边缘调制，连续更高周期的倾斜图案和其他类型的刻度图案。子编码器还可以使用适合所使用的图案的各种检测器类型。在一种链接方法中，通过对较粗的轨道施加相移然后将其与更细的轨道组合，使得成对的轨道连续地连接在一起，使得粗略轨道估计的转变与较细轨道的转变对准，于是值可以组合形成一个链接的位置估计。在另一种方法中，拍摄轨迹由相似周期的物理轨道计算，拍子轨迹用作链接过程中较粗的轨道。

4. 发明申请

US20070144026A1 Scale assembly for optical encoder having affixed optical reference markers 失效
标题翻译：具有固定的光学参考标记的光学编码器的刻度组件
公开(公告)号：US20070144026A1
公开(公告)日：2007-06-28
申请号：US11598257
申请日：2006-11-09
申请人： Donald Mitchell , Donald Grimes , William Thorburn , Stuart Dodson , Keith Hinrichs , Andrew Goldman , Joel Petersen , Christopher Rich
发明人： Donald Mitchell , Donald Grimes , William Thorburn , Stuart Dodson , Keith Hinrichs , Andrew Goldman , Joel Petersen , Christopher Rich
IPC分类号： G01D5/347
CPC分类号： G01D5/34707 , G01D5/347 , G01D5/366
摘要： A flexible optical marker is applied to an optical scale substrate to make an optical scale assembly for an optical position encoder. The marker may be a limit marker, index marker, or other type of marker. The marker substrate may be a plastic film such as polyester, singulated from a “recombine” roll created by a web process. The marker has a microstructured pattern on one surface that is covered with a reflective metal coating. The marker also has an adhesive layer and is affixed to the optical scale substrate by a process of aligning the marker to an edge of the scale and then applying pressure to the upper surface of the marker. The marker may be applied with a handle portion that is separated from the marker after the marker is affixed. The marker may be especially useful with a flexible scale substrate such as a metal tape substrate. By affixing the marker to the scale substrate as a separate step of making an encoder scale, various benefits such as reduced inventory, cost, and lead time may be achieved.
摘要翻译：将柔性光学标记应用于光学尺度基板以制造用于光学位置编码器的光学尺度组件。标记可以是限制标记，指数标记或其他类型的标记。标记基底可以是由通过网状过程产生的“重组”辊形成的塑料膜，例如聚酯。标记在一个表面上具有被反射金属涂层覆盖的微结构图案。标记还具有粘合剂层，并通过将标记物与标尺的边缘对准并且然后向标记物的上表面施加压力的方法固定到光学秤基底上。标记物可以在标记物固定之后施加与标记物分离的手柄部分。该标记可能对于诸如金属带基材之类的柔性标尺基底特别有用。通过将标记附着到刻度尺基板上，作为制作编码器刻度的单独步骤，可以实现诸如库存减少，成本和提前期的各种益处。

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