公开(公告)号：US5150115A

公开(公告)日：1992-09-22

申请号：US627207

申请日：1990-12-13

申请人： Joannes N. M. deJong ,  Meng H. Lean ,  Barry Wolf ,  John J. Ricciardelli ,  Stuart A. Schweid ,  Robert M. Lofthus

发明人： Joannes N. M. deJong ,  Meng H. Lean ,  Barry Wolf ,  John J. Ricciardelli ,  Stuart A. Schweid ,  Robert M. Lofthus

IPC分类号： G01D5/245 ,  H03M1/64

CPC分类号： G01D5/2451 ,  H03M1/645

摘要： An inductive-type rotary encoder includes a stator having at least one conductive pattern on one side thereof, and a rotor having another conductive pattern on one side thereof which faces the at least one conductive pattern of the stator. The conductive patterns are inductively coupled to one another so as to generate an output signal indicative of the angular position of the rotor relative to the stator. In order to reduce the overall size and number of parts required, the circuitry for energizing the stator conductive pattern(s) and for generating the output signal can be provided on a printed circuit board, the opposite side of which contains the at least one stator conductive pattern. In order to reduce noise as well as to reduce the first harmonic error, lead lines for attaching the stator and rotor conductive patterns to the controlling circuitry and a return line which extends along substantially the entire length of the rotor or stator conductive patterns and attaches to one of the lead lines are provided and specially located relative to undulations of the conductive patterns. Additionally, the length of spokes which define undulations of the respective rotor and stator conductive patterns can be controlled to improve the performance of the rotary encoder. A rotary encoder including inductively coupled rotor and stator conductive patterns for generating a relative angular position (or rotary speed) of the rotor relative to the staator, as well as stator and rotor index pulse patterns inductively coupled for generating an index pulse once per revolution of the rotor relative to the stator is also provided.

摘要翻译： 电感型旋转编码器包括：定子，其一侧具有至少一个导电图案，转子在其一侧具有面向定子的至少一个导电图案的导电图案。 导电图案彼此感应耦合，以产生指示转子相对于定子的角位置的输出信号。 为了减小所需部件的总体尺寸和数量，可以在印刷电路板上提供用于激励定子导电图案并用于产生输出信号的电路，其相对的侧面包含至少一个定子 导电图案。 为了降低噪声以及降低一次谐波误差，用于将定子和转子导电图案连接到控制电路的引线和沿着转子或定子导电图案的大致整个长度延伸的返回线，并附接到 提供引线之一并且相对于导电图案的起伏特别定位。 此外，可以控制限定相应转子和定子导电图案的起伏的轮辐的长度，以改善旋转编码器的性能。 一种旋转编码器，包括电感耦合的转子和定子导电图案，用于产生转子相对于定标器的相对角位置（或转速）以及感应耦合的定子和转子折射率脉冲图案，用于每转一次产生索引脉冲 还提供了相对于定子的转子。

公开(公告)号：US08560585B2

公开(公告)日：2013-10-15

申请号：US12901234

申请日：2010-10-08

申请人： Stuart A. Schweid

发明人： Stuart A. Schweid

IPC分类号： G06F7/00 ,  G06F15/00

CPC分类号： G06F1/03 ,  H04N1/407

摘要： A method is described to combine two integer lookup tables to realize a single integer lookup table. The method converts each lookup table to a set of floating point values. The conversion process generates a set of floating point values that are as close as possible to the underlying analytic or smooth function that generated the tables in the first place. A system to implement the method is also described.

摘要翻译： 描述了一种组合两个整数查找表以实现单个整数查找表的方法。 该方法将每个查找表转换为一组浮点值。 转换过程生成一组浮点值，这些值尽可能靠近生成表的底层分析或平滑函数。 还描述了实现该方法的系统。

公开(公告)号：US20120308211A1

公开(公告)日：2012-12-06

申请号：US13484627

申请日：2012-05-31

申请人： Beilei Xu ,  Stuart A. Schweid ,  Robert P. Loce ,  Yonghui Zhao ,  Zvika Leybovich ,  Reuven Sherwin

发明人： Beilei Xu ,  Stuart A. Schweid ,  Robert P. Loce ,  Yonghui Zhao ,  Zvika Leybovich ,  Reuven Sherwin

IPC分类号： G11B27/02

CPC分类号： G06F19/324 ,  G06F16/735 ,  G06F19/321 ,  G11B27/34 ,  G16H10/60

摘要： The present disclosure provides a personalized record/video, and method to produce the record/video, that combines stock tutorial record/video information with personalized information. Personalized information can include data that is, for example, inserted, overlaid, or parameterized information (still images, video, audio, text or graphics, etc.); sorted sequence of images and sorted differences from one personalized script to another personalized script; and/or a personalized framework for creating a personalized script that generates an asynchronous video.

摘要翻译： 本公开提供了一种个性化的记录/视频以及产生记录/视频的方法，其将库存教学记录/视频信息与个性化信息相结合。 个性化信息可以包括例如插入，重叠或参数化信息（静止图像，视频，音频，文本或图形等）的数据; 图像的排序顺序和从一个个性化脚本到另一个个性化脚本的排序差异; 和/或用于创建产生异步视频的个性化脚本的个性化框架。

公开(公告)号：US08055093B2

公开(公告)日：2011-11-08

申请号：US12101947

申请日：2008-04-11

申请人： Stuart A. Schweid

发明人： Stuart A. Schweid

IPC分类号： G06K9/40

CPC分类号： G06K9/40 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/20016 ,  G06T2207/20192

摘要： A system determines the noise level of image data by high pass filtering image data. Absolutes values of the high pass filtered image data are determined. Thereafter, multiple mean values for absolute values less than a predetermined number of threshold values are determined. Based upon the determined mean values, a plurality of estimated mean values is calculated, each estimated mean value being calculated from a combination of two determined mean values. The noise of the image is determined from a combination of the minimum estimated mean value and the maximum estimated mean value. This noise can be optionally used by a sigma filter, at Step S740, to sigma filter the image data.

摘要翻译： 系统通过高通滤波图像数据确定图像数据的噪声水平。 确定高通滤波图像数据的绝对值。 此后，确定小于预定数量的阈值的绝对值的多个平均值。 基于确定的平均值，计算多个估计平均值，每个估计平均值由两个确定的平均值的组合计算。 图像的噪声由最小估计平均值和最大估计平均值的组合确定。 在步骤S740，这种噪声可以被西格玛滤波器任选地用于西格玛滤波图像数据。

公开(公告)号：US20090257675A1

公开(公告)日：2009-10-15

申请号：US12101948

申请日：2008-04-11

申请人： Stuart A. Schweid

发明人： Stuart A. Schweid

IPC分类号： G06K9/40

CPC分类号： G06K9/40 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/20016 ,  G06T2207/20192

摘要： A system determines the noise level of image data by high pass filtering image data. Absolutes values of the high pass filtered image data are determined. Thereafter, multiple mean values for absolute values less than a predetermined number of threshold values are determined. Based upon the determined mean values, a plurality of estimated mean values is calculated, each estimated mean value being calculated from a combination of two determined mean values. The noise of the image is determined from a combination of the minimum estimated mean value and the maximum estimated mean value. This noise can be optionally used by a sigma filter, at Step S740, to sigma filter the image data.

公开(公告)号：US20090257673A1

公开(公告)日：2009-10-15

申请号：US12101947

申请日：2008-04-11

申请人： Stuart A. Schweid

发明人： Stuart A. Schweid

IPC分类号： G06K9/40

CPC分类号： G06K9/40 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/20016 ,  G06T2207/20192

摘要： A system determines the noise level of image data by high pass filtering image data. Absolutes values of the high pass filtered image data are determined. Thereafter, multiple mean values for absolute values less than a predetermined number of threshold values are determined. Based upon the determined mean values, a plurality of estimated mean values is calculated, each estimated mean value being calculated from a combination of two determined mean values. The noise of the image is determined from a combination of the minimum estimated mean value and the maximum estimated mean value. This noise can be optionally used by a sigma filter, at Step S740, to sigma filter the image data.

摘要翻译： 系统通过高通滤波图像数据确定图像数据的噪声水平。 确定高通滤波图像数据的绝对值。 此后，确定小于预定数量的阈值的绝对值的多个平均值。 基于确定的平均值，计算多个估计平均值，每个估计平均值由两个确定的平均值的组合计算。 图像的噪声由最小估计平均值和最大估计平均值的组合确定。 在步骤S740，这种噪声可以被西格玛滤波器任选地用于西格玛滤波图像数据。

公开(公告)号：US20090214131A1

公开(公告)日：2009-08-27

申请号：US12038310

申请日：2008-02-27

申请人： Stuart A. Schweid

发明人： Stuart A. Schweid

IPC分类号： G06K9/40

CPC分类号： G06K9/40 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/20016 ,  G06T2207/20192

摘要： A first sigma filtering circuit sigma filters an image to produce a filtered image. An analysis circuit processes the sigma filtered image to produce an approximation part and a detail part. A second sigma filter circuit filters the approximation part to produce a sigma filtered approximation part. Another analysis circuit process the sigma filtered approximation part to produce a second approximation part and a second detail part. A third sigma filter circuit sigma filters the second approximation part to produce a sigma filtered second filtered approximation part. A first synthesizer synthesizes the sigma filtered second filtered approximation part and the second detailed part to produce a first reconstructed image, and a second synthesizer synthesizes the first reconstructed image and the first detail part to produce a final filtered image.

摘要翻译： 第一sigma滤波电路sigma过滤图像以产生滤波图像。 分析电路处理西格玛滤波图像以产生近似部分和细节部分。 第二Σ滤波器电路对近似部分进行滤波以产生Σ滤波近似部分。 另一分析电路处理西格玛滤波近似部分以产生第二近似部分和第二细节部分。 第三西格玛滤波器电路西格玛对第二近似部分进行滤波以产生西格玛滤波的第二滤波近似部分。 第一合成器合成西格数滤波的第二滤波近似部分和第二详细部分以产生第一重构图像，第二合成器合成第一重构图像和第一细节部分以产生最终滤波图像。

公开(公告)号：US07558961B2

公开(公告)日：2009-07-07

申请号：US11110813

申请日：2005-04-21

申请人： Gaurav Sharma ,  Stuart A. Schweid

发明人： Gaurav Sharma ,  Stuart A. Schweid

IPC分类号： H04L21/00

CPC分类号： G06T1/005 ,  H04L9/3242 ,  H04L2209/043 ,  H04L2209/34 ,  H04L2209/60

摘要： System and methods provide a message, generated based on a message authentication code (MAC), embedded in a look-up table associated with an image. The embedding of the message does not affect the image. The message may be used to authenticate the image.

摘要翻译： 系统和方法提供基于嵌入在与图像相关联的查找表中的消息认证码（MAC）生成的消息。 消息的嵌入不会影响图像。 该消息可用于认证图像。

公开(公告)号：US06603575B2

公开(公告)日：2003-08-05

申请号：US10046687

申请日：2002-01-16

申请人： Stuart A. Schweid ,  David J. Metcalfe

发明人： Stuart A. Schweid ,  David J. Metcalfe

IPC分类号： H04N121

CPC分类号： H04N1/4052

摘要： A system and method for processing image data converts a pixel of image data having a first resolution to a plurality of subpixels, the plurality of subpixels representing a second resolution, the second resolution being higher than the first resolution. The plurality of subpixels are thresholded to generate a group of subpixel values for each pixel and a threshold error value. It is then determined if the group of subpixel values from the thresholding process produce a pattern containing an isolated subpixel. If the group of subpixel values from the thresholding process produce a pattern containing an isolated subpixel, the group of subpixel vales is modified to produce a pattern without an isolated subpixel. The modification process produces a subpixel error value which is compensated for localized error before being diffused to adjacent pixels.

摘要翻译： 用于处理图像数据的系统和方法将具有第一分辨率的图像数据的像素转换为多个子像素，所述多个子像素表示第二分辨率，第二分辨率高于第一分辨率。 多个子像素被阈值化以产生每个像素的一组子像素值和阈值误差值。 然后确定来自阈值处理的子像素值组是否产生包含隔离子像素的图案。 如果来自阈值处理的子像素值组产生包含隔离子像素的图案，则子像素值组被修改以产生没有隔离子像素的图案。 修改过程产生子像素误差值，其在被扩散到相邻像素之前被补偿了局部误差。

公开(公告)号：US06198835B1

公开(公告)日：2001-03-06

申请号：US09004674

申请日：1998-01-08

申请人： Martin E. Banton ,  Stuart A. Schweid ,  Elizabeth A. Richenderfer

发明人： Martin E. Banton ,  Stuart A. Schweid ,  Elizabeth A. Richenderfer

IPC分类号： G06K900

CPC分类号： H04N1/00726 ,  G06T5/20 ,  H04N1/00002 ,  H04N1/00037 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00092

摘要： A system and method which enables the location and orientation of an image to be determined without introducing scanning artifacts into the rendered image. The system utilizes a separate set of sensors on a scanning bar that are sensitive to a wavelength of light outside the range of wavelengths of the typical sensors found on the scanning bar, such as red, green, or blue. Moreover, the system includes a light source which is capable of emitting the wavelength of light that is outside this range of wavelength of light. Thus, whenever the additional set of sensors detect light, the system would determine that the light was due to a scanning artifact, such as a hole, rip, or dog ear in the original document being scanned. Furthermore, the system would include a process which measures the variations of the image signal in the fastscan and slowscan directions, as well as, the gray level of the video signal from these various measurements, the system would develop a cost value as to the certainty as whether the signal represents a scanning artifact. In such a system, the backing would be embedded with a pattern which would have a predetermined variation in a fastscan direction but have little or no variation in a slowscan direction.

摘要翻译： 一种使得能够确定图像的位置和方位而不将扫描伪影引入到渲染图像中的系统和方法。 该系统在扫描杆上使用对扫描条上发现的典型传感器波长范围（例如红色，绿色或蓝色）的波长波长敏感的扫描条上的一组单独的传感器。 此外，该系统包括能够发射在该波长范围之外的光的波长的光源。 因此，每当附加的传感器组检测到光时，系统将确定光是由于扫描原件造成的，例如正在扫描的原稿中的孔，裂纹或狗耳等扫描伪影。 此外，该系统将包括测量图像信号在快扫和慢扫描方向上的变化的过程以及来自这些各种测量的视频信号的灰度级，系统将产生关于确定性的成本值 作为信号是否表示扫描伪像。 在这样的系统中，背衬将被嵌入具有在快扫方向上具有预定变化但在慢扫描方向上几乎没有或没有变化的图案。