公开(公告)号：US5094381A

公开(公告)日：1992-03-10

申请号：US616150

申请日：1990-11-20

申请人： Robert A. Amos ,  Joel R. Anstrom ,  Francis W. Bogaczyk ,  Robert W. Kulterman ,  Gilbert B. Nebgen ,  Darryl R. Polk ,  Michael A. Rubsam ,  David P. Watson ,  Terry L. Wilmoth ,  Clifford M. Wood

发明人： Robert A. Amos ,  Joel R. Anstrom ,  Francis W. Bogaczyk ,  Robert W. Kulterman ,  Gilbert B. Nebgen ,  Darryl R. Polk ,  Michael A. Rubsam ,  David P. Watson ,  Terry L. Wilmoth ,  Clifford M. Wood

IPC分类号： H01L21/52 ,  H01L21/00 ,  H01L21/60 ,  H05K13/04 ,  H05K13/08

CPC分类号： H01L21/67144 ,  H05K13/0465 ,  H05K13/08

摘要： The apparatus of the present invention may be utilized for the automated bonding of electronic components to a circuit board. A placement and bonding head is attached to a manipulatable robotic arm and is utilized to select an electronic component having a plurality of conductive leads from a supply of such components and position that component adjacent a plurality of contact pads on a circuit board. While retaining the electronic component within the placement and bonding head, the component is then thermally bonded to the contact pads. In one embodiment of the present invention, an electronic component may be optically inspected while being retained within the placement and bonding head. In another embodiment, thermal bonding is accomplished utilizing a plurality of thermally activatable blades which each include a thermocouple mounted adjacent thereto. Selective low current control signals are then coupled to the placement and bonding head where transformers are utilized to amplify the current prior to coupling the control signal to individually thermally activatable blades. In yet another embodiment of the present invention, the placement and bonding head includes a plenum for supplying inert gas to the bonding site so that the use of flux is not necessary.

公开(公告)号：US4469460A

公开(公告)日：1984-09-04

申请号：US429646

申请日：1982-09-30

申请人： John J. Hughes ,  Darryl R. Polk

发明人： John J. Hughes ,  Darryl R. Polk

IPC分类号： B41J19/18 ,  B41J2/505 ,  B41J2/51 ,  B41J19/20 ,  G06K15/10 ,  B41J19/30

CPC分类号： B41J2/5056 ,  B41J19/202

摘要： A serial printer is provided which moves the printhead at optimum velocity with respect to the document being printed so as to achieve maximum throughput. Prior to the printing of each line of alphanumeric characters, the printer contains means for determining the length of said line. In response to said determined line length, drive means move the printhead across the medium at a selected velocity which is based upon the determined line length. The present expedient is particularly applicable to matrix printers wherein the selected velocity is constant during the actual printing of the line.

摘要翻译： 提供了一种串行打印机，其以相对于被打印的文档的最佳速度移动打印头，以实现最大的吞吐量。 在打印每行字母数字字符之前，打印机包含用于确定所述行的长度的装置。 响应于所述确定的线路长度，驱动装置以基于所确定的线路长度的选定速度移动打印头穿过介质。 本发明特别适用于其中所选择的速度在线的实际打印期间是恒定的矩阵式打印机。

公开(公告)号：US06437358B1

公开(公告)日：2002-08-20

申请号：US09244196

申请日：1999-02-04

申请人： Martin Potucek ,  Albert D. Edgar ,  Darryl R. Polk

发明人： Martin Potucek ,  Albert D. Edgar ,  Darryl R. Polk

IPC分类号： G01N2186

CPC分类号： H04N1/00013 ,  G01N21/94 ,  H04N1/00002 ,  H04N1/00037 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/00092 ,  H04N1/00795

摘要： The present invention provides a system for image-capturing devices, such as scanners, to accurately identify defects in objects. The objects can be the physical images to be captured or elements of the image-capturing devices such as the platen and mirrors. The image-capturing devices can then use this defect information to remove defects from captured images. The invention teaches an advantageous arrangement of illumination and sensor elements to record defect data at an angle roughly equal to the angle at which light is directed to an object, i.e. where the angle of reflection roughly equals the angle of incidence. Light reflected from surface defects has a wider diffusion and thus a lower amplitude than light reflected from the surface of the object itself. Accordingly, this characteristic can be utilized to identify defect information. Image-capturing devices can use this defect information in software applications with mathematical algorithms to enhance captured images by removing the information that corresponds to defects.

摘要翻译： 本发明提供了一种用于图像捕获设备（诸如扫描仪）的系统，以准确地识别物体中的缺陷。 对象可以是要捕获的物理图像或诸如压板和反射镜的图像捕获设备的元件。 然后，图像捕获设备可以使用该缺陷信息来从捕获的图像中去除缺陷。 本发明教导了照明和传感器元件的有利布置，以大致等于光被引导到物体的角度，即反射角大致等于入射角的角度来记录缺陷数据。 从表面缺陷反射的光具有较宽的扩散，因此比从物体本身的表面反射的光的幅度更低。 因此，可以利用该特性来识别缺陷信息。 图像捕获设备可以使用数学算法的软件应用程序中的缺陷信息，通过删除与缺陷相对应的信息来增强捕获的图像。

公开(公告)号：US4589790A

公开(公告)日：1986-05-20

申请号：US614628

申请日：1984-05-29

申请人： John S. Corbin, Jr. ,  Darryl R. Polk ,  Ciro N. Ramirez

发明人： John S. Corbin, Jr. ,  Darryl R. Polk ,  Ciro N. Ramirez

IPC分类号： B41J19/18 ,  G05B19/416 ,  H02P8/14 ,  B41J19/50

CPC分类号： G05B19/416 ,  Y10S400/903

摘要： A method and apparatus for minimizing escapement positioning error by matching the move sequence of a print carrier to the mechanical system dynamic characteristics without the use of a feedback sensor are described. A plurality of constant velocity signals are provided for driving the print carrier to the next print position. The sequential velocity signals comprise an acceleration velocity signal and a deceleration velocity signal, the duration of which are dependent upon the damped natural frequency of the print system. For long escapement moves, a slew velocity command is provided between the acceleration and deceleration velocity commands so as to maintain the velocity of the print carrier at the amplitude it had attained at the conclusion of the acceleration velocity signal. The relative amplitudes of the acceleration, slew and deceleration velocity signals are a function of the damping ratio of the printer system.

摘要翻译： 描述了通过将打印载体的移动顺序与机械系统动态特性匹配而不使用反馈传感器来最小化擒纵机构定位误差的方法和装置。 提供多个恒定速度信号用于将打印载体驱动到下一个打印位置。 顺序速度信号包括加速度速度信号和减速度信号，其持续时间取决于打印系统的阻尼固有频率。 对于长擒纵移动，在加速和减速速度指令之间提供转速指令，以便将加速度信号结束时的打印载体的速度保持在已经达到的幅度。 加速度，转速和减速度速度信号的相对幅度是打印机系统的阻尼比的函数。

公开(公告)号：US4480938A

公开(公告)日：1984-11-06

申请号：US410279

申请日：1982-08-23

申请人： Darryl R. Polk ,  Richard A. Southworth

发明人： Darryl R. Polk ,  Richard A. Southworth

IPC分类号： B41J19/18 ,  H02P8/12 ,  B41J19/00

CPC分类号： H02P8/12

摘要： A servomotor drive system for a printer escapement is provided which minimizes power supply requirements. The drive system has means for accelerating and decelerating the printhead escapement having a fixed current source applied to a servomotor which drives the escapement. In order to minimize power requirements, the system includes means for controlling the current in the motor which comprise means for sensing the actual motor current and feeding back the sensed current to a comparing means. A preselected varying current profile is applied to the comparing means which compares this profile to the actual motor current. Means are then provided responsive to these comparing means for altering the actual motor current to conform with this preselected varying motor current profile.

摘要翻译： 提供了一种用于打印机擒纵机构的伺服电动机驱动系统，其最小化了电源要求。 驱动系统具有用于加速和减速具有施加到驱动擒纵机构的伺服电动机的固定电流源的打印头擒纵机构。 为了最小化功率要求，该系统包括用于控制电动机中的电流的装置，其包括用于感测实际电动机电流并将感测到的电流反馈到比较装置的装置。 将预先选择的变化的电流曲线应用于比较装置，该比较装置将该轮廓与实际的电动机电流进行比较。 然后响应于这些比较装置提供改变实际电动机电流以符合该预选的变化的电动机电流曲线的装置。

公开(公告)号：US5185811A

公开(公告)日：1993-02-09

申请号：US825434

申请日：1992-01-21

申请人： Gregory E. Beers ,  Myron D. Flickner ,  William L. Kelly-Mahaffey ,  Darryl R. Polk ,  James M. Stafford ,  Henry E. Wattenbarger

发明人： Gregory E. Beers ,  Myron D. Flickner ,  William L. Kelly-Mahaffey ,  Darryl R. Polk ,  James M. Stafford ,  Henry E. Wattenbarger

IPC分类号： G06T7/00

CPC分类号： G06T7/0008 ,  G06T7/004 ,  G06T2207/30141

摘要： A method and apparatus utilizing one or two cameras are described for visually inspecting a polygonal component located at the end of the robotic end effector for determining presence, position and orientation of component leads prior to placement. Image processing improvements are provided for decreasing computational complexity by representing two dimensional image areas of interest, and each containing leads along one side of a component, by one dimensional summation profiles.

摘要翻译： 描述了利用一个或两个照相机的方法和装置，用于目视检查位于机器人末端执行器末端的多边形部件，以便在放置之前确定部件导线的存在，位置和方向。 提供图像处理改进，以通过表示二维图像区域来减少计算复杂度，并且每个都包含通过一维求和轮廓的元件的一侧的引线。

公开(公告)号：US4374383A

公开(公告)日：1983-02-15

申请号：US219081

申请日：1980-12-22

申请人： Darryl R. Polk ,  Errol R. Williams, Jr.

发明人： Darryl R. Polk ,  Errol R. Williams, Jr.

IPC分类号： G01D5/24 ,  G01D5/241 ,  G01D5/245 ,  G01R27/26 ,  G08C19/16

CPC分类号： G01D5/2412

摘要： A rotational shaft home position sensing transducer is provided which comprises a rotor mounted on the shaft having a planar surface with a first radial array of conductive elements on the surface in combination with a fixedly mounted stator having a planar surface parallel to the planar rotor surface and a second corresponding radial array of conductive elements on the stator surface adjacent and spaced from the first array. The structure further contains a unit for applying an alternating electrical signal to the first array of elements and a unit connected to the second array of elements for sensing the capacitive effect induced in the second array by said electrical signal. The first and second arrays must be arranged so that a single home position in the relative motion between the rotor and stator will induce a single unique capacitive effect in the second plurality of elements. Particularly, the number of elements in the first and second array and their arrangement would be such that there is only a single rotational home position whereat all the elements in the first array are respectively aligned with the corresponding elements of the second array which will induce the single unique capacitive effect in this second array.

摘要翻译： 提供了一种旋转轴原位感测换能器，其包括安装在所述轴上的转子，所述转子具有平坦表面，所述平面具有与所述平面转子表面平行的具有平坦表面的固定安装的定子的表面上的第一径向阵列的导电元件， 定子表面上与第一阵列相邻并间隔开的第二对应的导电元件的径向阵列。 该结构还包括用于向第一阵列阵列施加交替电信号的单元和连接到第二阵列阵列的单元，用于通过所述电信号感测在第二阵列中感应的电容效应。 第一和第二阵列必须被布置成使得在转子和定子之间的相对运动中的单个原始位置将在第二多个元件中引起单个唯一的电容效应。 特别地，第一和第二阵列中的元件的数量及其布置将使得仅存在单个旋转原位置，其中第一阵列中的所有元件分别与第二阵列的相应元件对准，这将引起第 在第二阵列中具有单独的电容效应。