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11. 发明授权

US5339150A Mark detection circuit for an electrographic printing machine 失效
标题翻译：电子印刷机的标记检测电路
公开(公告)号：US5339150A
公开(公告)日：1994-08-16
申请号：US35830
申请日：1993-03-23
申请人： Fred F. Hubble, III , James P. Martin , Jeffrey J. Folkins
发明人： Fred F. Hubble, III , James P. Martin , Jeffrey J. Folkins
IPC分类号： B41J2/385 , B41J2/45 , G03G15/01 , H04N1/50
CPC分类号： G03G15/0152 , B41J2/45 , G03G15/0163 , H04N1/506
摘要： An apparatus and method of adjusting an imager in an electrophotographic printing machine to correct for registration errors when forming a composite image. Registration errors are sensed by forming one or more target lines on the photoreceptor surface, detecting the center of the lines and controlling the operation of the imager in response thereto. In one embodiment, four LED print bars form a composite color image in a single pass. A photosensor is placed beneath the print bars; a narrow target line is formed on the belt surface a few scan lines before the start of an exposure frame. The center of the line is detected by circuitry connected to the sensor output which produces a signal corresponding to detection of the center of the target line. This output signal is generated for each of the three downstream print bars and a signal is applied to each print bar to start the image exposure sequence in registration with first image exposure. In a second embodiment, skew registration adjustments are enabled by forming two line marks at opposite ends of the photoreceptor, detecting the center of each mark and making the adjustments of the position of the downstream print bars based on time differences between detection of the generation of the two signals.
摘要翻译：一种在电子照相打印机中调整成像器的装置和方法，以在形成合成图像时校正注册误差。通过在感光体表面上形成一个或多个目标线，检测线的中心并响应于此控制成像器的操作来感测对准误差。在一个实施例中，四个LED打印条在单次通过中形成复合彩色图像。光电传感器放置在打印条下方; 在曝光框架开始之前，在带表面上形成几条扫描线的窄目标线。线路的中心由连接到传感器输出的电路检测，该电路产生对应于目标线的中心的检测的信号。为三个下游打印条中的每一个生成该输出信号，并且向每个打印条施加信号以开始与第一图像曝光对准的图像曝光序列。在第二实施例中，通过在感光体的相对端处形成两个线标记，检测每个标记的中心并基于检测到下一个印刷条的位置之间的时间差，两个信号。

12. 发明授权

US4767172A Collector for an LED array 失效
标题翻译： LED阵列收集器
公开(公告)号：US4767172A
公开(公告)日：1988-08-30
申请号：US709973
申请日：1985-03-11
申请人： Virginia R. Nichols , Fred F. Hubble, III , James P. Martin
发明人： Virginia R. Nichols , Fred F. Hubble, III , James P. Martin
IPC分类号： F21V7/00 , G02B6/42 , G03G15/047 , G02B6/32 , G03B27/00
CPC分类号： F21V7/0091 , G02B6/4206 , G02B6/4214 , G02B6/4249 , G02B6/425 , G03G15/047 , F21Y2101/00 , G03G2215/0451
摘要： A light collector for an LED array for efficiently collecting and collimating light emitting from the LEDs and projecting the light into an optical wave guide which directs that light onto a photoreceptor surface. Each LED is centered in a hemispherical cavity in the collector array in order that radiation from the LED enters the collector essentially unrefracted. The collector array provides a convex lens portion and a parabolic reflecting surface portion. Light that exits from the LED that is substantially perpendicular to the substrate supporting the LED is applied to the convex lens and is collimated. Light exiting substantially parallel to the substrate strikes a parabolic reflecting surface at greater than the critical angle and is also collimated. The two concentric collimated beams are combined and applied to the photoreceptor surface via a light pipe or optical wave guide secured to the collector.
摘要翻译：一种用于LED阵列的集光器，用于有效地收集和准直从LED发射的光并将光投射到将光引导到感光体表面上的光波导中。每个LED在收集器阵列中的半球形腔中居中，以便来自LED的辐射基本上未被收缩。集电极阵列提供凸透镜部分和抛物面反射表面部分。离开LED的基本上垂直于支撑LED的基板的光被施加到凸透镜并被准直。基本上平行于衬底排出的光以大于临界角撞击抛物面反射表面，并且也是准直的。两个同心准直光束通过固定到收集器的光管或光波导合成并施加到感光体表面。

13. 发明授权

US06806717B2 Spacing compensating electrostatic voltmeter 失效
标题翻译：间距补偿静电电压表
公开(公告)号：US06806717B2
公开(公告)日：2004-10-19
申请号：US10225555
申请日：2002-08-21
申请人： Alan J. Werner, Jr. , Fred F. Hubble, III , Stanley J. Wallace , R. Enrique Viturro , Eric Peeters , Joel A. Kubby
发明人： Alan J. Werner, Jr. , Fred F. Hubble, III , Stanley J. Wallace , R. Enrique Viturro , Eric Peeters , Joel A. Kubby
IPC分类号： G01R2912
CPC分类号： G01R29/12
摘要： An electrostatic type voltmeter for measuring the potential on a surface, the voltmeter including a probe; a support for supporting the probe in spaced relationship with the surface, the probe having a plurality of spacing element sites thereon for measuring a distance between each of the plurality of spacing element sites and a corresponding area on the surface opposite of each of the plurality of spacing element sites; a plurality of electrostatic element sites, intermixed and adjacent to the plurality of spacing element sites on the probe, for measuring a voltage between each of the plurality of spacing element sites and an area on the surface adjacent to the corresponding area opposite of each of the plurality of spacing element sites. A processor for compensating an output signal of the probe in response to the measurements received from the plurality of spacing element sites and the plurality of electrostatic element sites.
摘要翻译：一种用于测量表面上的电位的静电型电压表，所述电压表包括探针; 用于支撑所述探针与所述表面间隔开的关系，所述探针在其上具有多个间隔元件位置，用于测量所述多个间隔元件位置中的每一个之间的距离以及与所述多个间距单元; 多个静电元件位置，与探针上的多个间隔元件位置相互混合并相邻，用于测量多个间隔元件位置中的每一个之间的电压，以及与相邻区域相对的相应区域相邻的表面上的区域多个间距元件位置。一种处理器，用于响应于从多个间隔元件位置和多个静电元件位点接收的测量值来补偿探针的输出信号。

14. 发明授权

US06668155B1 Lead edge paper curl sensor 有权
标题翻译：引线边缘卷曲传感器
公开(公告)号：US06668155B1
公开(公告)日：2003-12-23
申请号：US10202209
申请日：2002-07-23
申请人： Fred F. Hubble, III , Tonya L. Love , Daniel A. Robbins , Stanley J. Wallace
发明人： Fred F. Hubble, III , Tonya L. Love , Daniel A. Robbins , Stanley J. Wallace
IPC分类号： G03G1500
CPC分类号： G03G15/6576
摘要： A sheet curl measurement system and method and an automatic sheet decurling system controlled thereby for the printed paper sheets output of printer. The sheet curl may be remotely sensed without contacting or interfering with the motion of the sheets in their normal sheet path, using a simple but accurate optical sheet curl sensor operating on a portion of the moving sheet at an angle thereto and perpendicularly thereto, with displacement insensitive optics, in both an angular direction substantially parallel to the sheet movement direction and an angular direction substantially transverse to the sheet movement direction, with ratioing of the two output signals.
摘要翻译：一种纸张卷曲测量系统和方法以及由此控制的用于打印机的打印纸张输出的自动纸张卷曲消除系统。使用简单而精确的光学片卷曲传感器可以远程感测纸张卷曲，而不会使纸张在其正常的纸张路径中的运动接触或干扰，该光学片卷曲传感器以与其垂直的角度运动在移动片材的一部分上并具有位移在两个输出信号的比例方面，基本上平行于纸张移动方向的角度方向和基本上横向于纸张移动方向的角度方向都不敏感。

15. 发明授权

US06608643B2 Systems and method for measuring or reducing spacing errors in multiple beam ROS systems 有权
标题翻译：用于测量或减少多波束ROS系统中的间隔误差的系统和方法
公开(公告)号：US06608643B2
公开(公告)日：2003-08-19
申请号：US10046234
申请日：2002-01-16
申请人： Robert M. Lofthus , Patrick Y. Maeda , Daniel W. Costanza , Kristine A. German , Fred F. Hubble, III , Robert P. Loce
发明人： Robert M. Lofthus , Patrick Y. Maeda , Daniel W. Costanza , Kristine A. German , Fred F. Hubble, III , Robert P. Loce
IPC分类号： B41J247
CPC分类号： G02B26/123 , G02B26/127
摘要： An apparatus for correcting beam-to-beam spacing error on an image plane of a photoreceptor includes a controller which generates beam-to-beam spacing error corrections signals, a plurality of optical elements, each of which is adjustable and responsive to beam-to-beam spacing error correction signal and a gray level measurement device. The controller performs the beam-to-beam spacing error correction analysis, determining whether or not a correction is necessary, and if so, which optical element to adjust and the magnitude of adjustment. Enhanced toner area coverage sensors are used to detect the gray level of a toned area of raster scan line patterns at various locations across the photoreceptor image plane. By repeatedly evaluating the beam-to-beam spacing error during operation, the apparatus of the invention is able to correct beam-to-beam spacing errors that may develop during operation and does not permit residual errors to persist even after an initial correction has been implemented.
摘要翻译：用于校正感光体的图像平面上的光束到光束间隔误差的装置包括产生光束到光束间隔误差校正信号的控制器，多个光学元件，每个光学元件可调节并且响应于光束到光束光束间隔误差校正信号和灰度级测量装置。控制器执行波束对波束间隔误差校正分析，确定是否需要校正，如果是，则调整哪个光学元件和调整幅度。增强的调色剂区域覆盖传感器用于检测在感光体图像平面上的各个位置处的光栅扫描线图案的色调区域的灰度级。通过在操作期间重复评估波束对波束间隔误差，本发明的装置能够校正在操作期间可能产生的波束间距误差，并且即使在初始校正已经被保持之后也不允许残留误差保持实施。

16. 发明授权

US06556300B2 Color imager bar based spectrophotometer photodetector optical orientation 有权
公开(公告)号：US06556300B2
公开(公告)日：2003-04-29
申请号：US09863042
申请日：2001-05-22
申请人： Jagdish C. Tandon , Lingappa K. Mestha , Fred F. Hubble, III
发明人： Jagdish C. Tandon , Lingappa K. Mestha , Fred F. Hubble, III
IPC分类号： G01N2125
CPC分类号： H04N1/6033 , G01J3/501 , G01J3/513 , G01J3/524 , G03G15/01 , G03G2215/00063 , G03G2215/00067
摘要： A color spectrophotometer incorporating a low cost commercial imaging chip, which normally forms part of a document imaging bar used for imaging documents in scanners, etc., having multiple photo-sites with three different rows of color filters. Each chip is mounted on the optical axis of an imaging lens system, in the image plane of that lens system, to image the reflected illumination from an illuminated color test target area on the chip. The optical axis of the imaging lens system is oriented at 45° to the illuminated color test patches, and the photodetector chip is physically mounted perpendicular to the plane of the illuminated color test patches. Respective photo-sensor chips and associated 1:1 optics may be mounted on opposing sides of the spectrophotometer physically oriented at 90° to the test target area plane receiving the reflected light from the test target optically oriented at 45° to the illuminated test target.

17. 发明授权

US06177800B1 Method and apparatus for using shuttered windows in a micro-electro-mechanical system 有权
标题翻译：在微机电系统中使用百叶窗的方法和装置
公开(公告)号：US06177800B1
公开(公告)日：2001-01-23
申请号：US09200353
申请日：1998-11-10
申请人： Joel A. Kubby , Eric Peeters , R. Enrique Viturro , Fred F. Hubble, III , Stanley J. Wallace , Alan J. Werner, Jr.
发明人： Joel A. Kubby , Eric Peeters , R. Enrique Viturro , Fred F. Hubble, III , Stanley J. Wallace , Alan J. Werner, Jr.
IPC分类号： G01R2912
CPC分类号： G01R29/12 , G01R15/165 , G01R29/24
摘要： A windowed shutter on a micro-electro-mechanical system improves output current of a non-contacting electrostatic voltmeter. The output current is increased by increasing the area modulated by the micro-electro-mechanical shutter system and by increasing the speed of that modulation. The increase in the area modulated by the windowed shutter is in direct proportion to the number of windows used. Moreover, the speed of the modulation is increased by increasing the resonant frequency of the system. Less shutter mass increases the frequency thus increasing shutter movement over time.
摘要翻译：微机电系统上的开窗快门可提高非接触式静电电压表的输出电流。通过增加由微机电快门系统调制的面积并通过增加该调制的速度来增加输出电流。由窗口快门调制的面积的增加与使用的窗口数成正比。此外，通过增加系统的谐振频率来增加调制速度。较少的快门质量会增加频率，从而增加快门随时间的移动。

18. 发明授权

US5835975A Paper property sensing system 失效
标题翻译：纸属性感知系统
公开(公告)号：US5835975A
公开(公告)日：1998-11-10
申请号：US666765
申请日：1996-06-19
申请人： Eric Peeters , Joel A. Kubby , Fred F. Hubble, III , Stanley J. Wallace , Alan J. Werner, Jr. , R. Enrique Viturro
发明人： Eric Peeters , Joel A. Kubby , Fred F. Hubble, III , Stanley J. Wallace , Alan J. Werner, Jr. , R. Enrique Viturro
IPC分类号： G01L5/00 , B81B3/00 , G01B7/06 , G01N19/02 , G01N33/34
CPC分类号： G01N19/02 , G01B7/06 , G01N33/346
摘要： A sensor system for measuring physical properties of paper. The paper property sensor system includes a surface and a diaphragm opposed to each other. The small diaphragm includes a first pair and a second pair p-type piezoresistors. Each piezoresistor of the first pair has a longitudinal axis and is located perpendicular to and very close to one of the long edges of the diaphragm. Each piezoresistor of the second pair has a longitudinal axis and is located between and parallel to first pair of piezoresistors, and away from the short edges of the diaphragm. Coupling the first pair of piezoresistors with the second pair via a Wheatstone bridge produces a voltage representative of the shear force exerted by a sheet.
摘要翻译：用于测量纸张物理性能的传感器系统。纸张性质传感器系统包括彼此相对的表面和隔膜。小隔膜包括第一对和第二对p型压电电阻。第一对的每个压敏电阻器具有纵向轴线并且垂直于并且非常接近隔膜的一个长边缘定位。第二对的每个压敏电阻具有纵向轴线并且位于第一对压敏电阻器之间并且平行于第一对压敏电阻器并且远离隔膜的短边缘。通过惠斯通电桥将第一对压敏电阻与第二对耦合产生代表由片施加的剪切力的电压。

19. 发明授权

US5519230A Belt edge steering sensor 失效
标题翻译：皮带边缘转向传感器
公开(公告)号：US5519230A
公开(公告)日：1996-05-21
申请号：US296289
申请日：1994-08-25
申请人： Fred F. Hubble, III , Daniel W. Costanza , Edward T. Hinton , Michael R. Furst
发明人： Fred F. Hubble, III , Daniel W. Costanza , Edward T. Hinton , Michael R. Furst
IPC分类号： G01B5/00 , B65H5/02 , B65H23/188 , G03G15/00 , G03G21/00 , G01N21/86
CPC分类号： G03G15/755 , B65H23/1882 , G03G2215/00156 , G03G2215/0174
摘要： A sensor having a shutter mounted upon a shaft for rotation within a housing in opposition to a light path between an LED and photodetector is described. A potion of the shaft extends outside the housing connected to an elongated arm. A runner secured to the elongated arm, engages a moving photosensitive surface and deviations of the edge position of the photosensitive surface rotate the shutter in relation to the light path between the LED and photodetector for tracking the edge position of the moving photosensitive surface by providing signals representing shutter position.
摘要翻译：描述了一种传感器，其具有安装在轴上的快门，用于在壳体内与LED和光电检测器之间的光路相对旋转。轴的药水延伸到连接到细长臂的壳体的外部。固定到细长臂上的流道接合移动的感光表面，并且感光表面的边缘位置的偏差相对于LED和光电检测器之间的光路旋转快门，用于通过提供信号来跟踪移动光敏表面的边缘位置表示快门位置。

20. 发明授权

US5184011A Linear encoder for digital printing applications 失效
标题翻译：用于数字印刷应用的线性编码器
公开(公告)号：US5184011A
公开(公告)日：1993-02-02
申请号：US635837
申请日：1991-01-03
申请人： Fred F. Hubble, III , John M. Mitchell, Jr. , James P. Martin
发明人： Fred F. Hubble, III , John M. Mitchell, Jr. , James P. Martin
IPC分类号： G01D5/347 , B41J19/20 , G01D5/36
CPC分类号： B41J19/202 , G01D5/36
摘要： The invention comprises a sensor system in a printhead scanner which is capable of achieving accurate pixel to pixel registration. A plastic film strip with alternating fiducial bars and spaces is scanned. A voltage pattern is triggered by the zero slope points of the voltage induced by a sensing mechanism being moved along the plastic film strip.
摘要翻译：本发明包括一种能够实现精确的像素到像素配准的打印头扫描器中的传感器系统。扫描具有交替的基准杆和空间的塑料膜条。电压模式由感应机构沿着塑料薄膜条移动的电压的零点倾斜点触发。

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