公开(公告)号：US06822766B2

公开(公告)日：2004-11-23

申请号：US09797268

申请日：2001-03-01

申请人： Edward A. Hill ,  Craig T. Johnson ,  Carolyn L. Harris ,  William D. Amidei

发明人： Edward A. Hill ,  Craig T. Johnson ,  Carolyn L. Harris ,  William D. Amidei

IPC分类号： H04N100

CPC分类号： H04N1/401

摘要： A circuit connected to a linear array of photosensors generates image data representative of information printed on a document and adjusts the gains applied to the outputs of selected ones of the photosensors to eliminate streaks in the image data otherwise due to the selected photosensors imaging debris on an optical reference surface. The circuit determines which photosensors have low output values during a factory scan of a clean white reference surface. During a subsequent user environment calibration scan, low output values are adjusted to the average of their neighbors, but only for locations not identified as having low outputs during the factory scan. The circuit additionally performs a PRNU compensation and further adjusts the gains applied to each of the outputs of the photosensors so that all of their output values have a substantially uniform value.

摘要翻译： 连接到光电传感器的线性阵列的电路产生表示打印在文档上的信息的图像数据，并且调整应用于所选择的光电传感器的输出的增益以消除图像数据中的条纹，否则由于所选择的光电传感器成像碎片在 光学参考面。 该电路确定在干净的白色参考表面的工厂扫描期间哪些光电传感器具有低输出值。 在随后的用户环境校准扫描期间，将低输出值调整为其邻居的平均值，但仅对于在工厂扫描期间未被识别为具有低输出的位置。 该电路还执行PRNU补偿，并进一步调整施加到光电传感器的每个输出的增益，使得它们的所有输出值具有基本均匀的值。

公开(公告)号：US20130050768A1

公开(公告)日：2013-02-28

申请号：US13222976

申请日：2011-08-31

申请人： Edward A. Hill ,  Donald G. Harris ,  John H. Arterberry

发明人： Edward A. Hill ,  Donald G. Harris ,  John H. Arterberry

IPC分类号： H04N1/00

CPC分类号： H04N1/0249 ,  H04N2201/02404 ,  H04N2201/02454 ,  H04N2201/02485 ,  H04N2201/02495

摘要： Scanners and scanner housings are disclosed. An example scanner includes a housing to carry an optical element, the housing having a first support feature, and a printed circuit board having a second support feature to mate with the first support feature of the housing, the printed circuit board to provide vertical support to the housing when the first and second support features are mated.

摘要翻译： 公开了扫描仪和扫描仪外壳。 示例性扫描器包括用于承载光学元件的壳体，所述壳体具有第一支撑特征，以及具有第二支撑特征以与壳体的第一支撑特征相配合的印刷电路板，印刷电路板提供垂直支撑 当第一和第二支撑特征配合时，壳体。

公开(公告)号：US08199374B2

公开(公告)日：2012-06-12

申请号：US12437798

申请日：2009-05-08

申请人： Ken Ko ,  Edward A. Hill

发明人： Ken Ko ,  Edward A. Hill

IPC分类号： H04N1/04 ,  G03G15/00

CPC分类号： H04N1/10 ,  G03G15/605 ,  G03G2215/00185 ,  H04N2201/0422

摘要： Disclosed are apparatuses and methods for holding a document sheet in place against a scanning surface of an image capture system. One such apparatus is a document cover comprising: a body that is oriented parallel to the scanning surface when the document cover is in the closed position; a compliant and elastic document backing that is partially attached to the body and configured to reflect light originating from the image capture system; and a backing constraint configured to secure a central region of the document backing to the body and further configured to constrain movement of the central region in a first direction that is normal to the scanning surface while allowing movement in the same direction of outer regions that are lateral to the central region. The document backing generates a downward spring force which biases the outer regions toward the platen.

摘要翻译： 公开了用于将文件片保持在与图像拍摄系统的扫描表面相对的位置的装置和方法。 一种这样的装置是文件盖，包括：文档盖处于关闭位置时平行于扫描表面定向的主体; 柔性和弹性的文件背衬，其部分地附接到主体并且被配置为反射源自图像捕获系统的光; 以及背衬约束，其构造成将所述文件背衬的中心区域固定到所述主体并且进一步被配置为约束所述中心区域在垂直于所述扫描表面的第一方向上的移动，同时允许在与所述扫描表面相同的外部区域的相同方向上的移动， 横向于中部地区。 文件背衬产生朝着压板偏压外部区域的向下的弹簧力。

公开(公告)号：US07995234B2

公开(公告)日：2011-08-09

申请号：US11831846

申请日：2007-07-31

申请人： Kevin Bokelman ,  Ryan M. Smith ,  Edward A. Hill

发明人： Kevin Bokelman ,  Ryan M. Smith ,  Edward A. Hill

IPC分类号： G06K15/00 ,  H04N1/04 ,  H04N1/36

CPC分类号： H04N1/0473 ,  H04N1/1017 ,  H04N1/12 ,  H04N1/1911 ,  H04N1/32358 ,  H04N1/32448 ,  H04N2201/02439 ,  H04N2201/03108 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/04794

摘要： A scanning device includes a scanning mechanism, a memory, a processing mechanism, and a scan rate adjustment mechanism. The scanning mechanism scans a media sheet having an image thereon at a variable scan rate, to yield raw data. The memory temporarily stores the raw data. The processing mechanism converts the raw data within the memory into processed data. The raw data is removed from the memory as the raw data is converted. The scan rate adjustment mechanism adjusts the variable scan rate, based on one or more of an amount of free space within the memory, a fill rate at which the raw data is filling the memory, and a removal rate at which the raw data is being removed from the memory, so that the memory does not become completely full.

摘要翻译： 扫描装置包括扫描机构，存储器，处理机构和扫描速率调整机构。 扫描机构以可变扫描速率扫描其上具有图像的介质片，以产生原始数据。 内存暂时存储原始数据。 处理机制将存储器中的原始数据转换为处理数据。 当原始数据被转换时，原始数据将从存储器中删除。 扫描速率调整机构基于存储器内的可用空间量，原始数据填充存储器的填充率以及原始数据的移除速度的一个或多个来调整可变扫描速率 从内存中删除，以使内存不会完全充满。

公开(公告)号：US06496351B2

公开(公告)日：2002-12-17

申请号：US09822128

申请日：2001-03-30

申请人： Edward A. Hill ,  Ramaswamy Mahadevan

发明人： Edward A. Hill ,  Ramaswamy Mahadevan

IPC分类号： H01G501

CPC分类号： H01H1/0036 ,  B81B3/001 ,  B81B2201/032 ,  B81B2203/0118 ,  B81B2203/0307 ,  F03G7/06 ,  H01G5/16 ,  H01G5/18 ,  H01H59/0009 ,  H01H61/02 ,  H01H2059/0063 ,  H01H2059/0072 ,  H01H2059/0081 ,  H01H2061/006

摘要： MEMS devices include a substrate, an anchor attached to the substrate, and a multilayer member attached to the anchor and spaced apart from the substrate. The multilayer member can have a first portion that is remote from the anchor and that curls away from the substrate and a second portion that is adjacent the anchor that contacts the substrate. Related methods are also disclosed.

公开(公告)号：US06360539B1

公开(公告)日：2002-03-26

申请号：US09542672

申请日：2000-04-05

申请人： Edward A. Hill ,  Vijayakumar R. Dhuler ,  Allen B. Cowen ,  Ramaswamy Mahadevan ,  Robert L. Wood

发明人： Edward A. Hill ,  Vijayakumar R. Dhuler ,  Allen B. Cowen ,  Ramaswamy Mahadevan ,  Robert L. Wood

IPC分类号： F01B2910

CPC分类号： H01H1/0036 ,  H01H61/02 ,  H01H2061/006

摘要： Microelectromechanical actuators include a substrate, spaced apart supports on the substrate and a thermal arched beam that extends between the spaced apart supports and that further arches upon heating thereof, for movement along the substrate. One or more driven arched beams are coupled to the thermal arched beam. The end portions of the driven arched beams move relative to one another to change the arching of the driven arched beams in response to the further arching of the thermal arched beam, for movement of the driven arched beams. A driven arched beam also includes an actuated element at an intermediate portion thereof between the end portions, wherein a respective actuated element is mechanically coupled to the associated driven arched beam for movement therewith, and is mechanically decoupled from the remaining driven arched beams for movement independent thereof.

摘要翻译： 微机电致动器包括衬底，衬底上的间隔开的支撑件和在间隔开的支撑件之间延伸的热拱形梁，并且在其加热时进一步拱形地沿着衬底运动。 一个或多个被驱动的弓形梁联接到热拱形梁。 被驱动的拱形梁的端部相对于彼此移动，以响应于热拱形梁的进一步拱形来改变被驱动的弓形梁的拱形，以便驱动的拱形梁的运动。 被驱动的弓形梁还包括在其端部之间的中间部分处的致动元件，其中相应的致动元件机械地联接到相关联的被驱动的弓形梁以与其一起运动，并且与剩余的被驱动的弓形梁机械地分离以便独立运动 其中。

公开(公告)号：US06275320B1

公开(公告)日：2001-08-14

申请号：US09405789

申请日：1999-09-27

申请人： Vijayakumar R. Dhuler ,  Edward A. Hill ,  Ramaswamy Mahadevan ,  Mark David Walters ,  Robert L. Wood

发明人： Vijayakumar R. Dhuler ,  Edward A. Hill ,  Ramaswamy Mahadevan ,  Mark David Walters ,  Robert L. Wood

IPC分类号： G02B2600

CPC分类号： G02B26/0841 ,  B81B3/0054 ,  B81B2201/038 ,  B81B2201/047 ,  G02B6/266

摘要： A MEMS (Micro Electro Mechanical System) variable optical attenuator is provided that is capable of optical attenuation over a full range of optical power. The MEMS variable optical attenuator comprises a microelectronic substrate, a MEMS actuator and an optical shutter. The MEMS variable optical attenuator may also comprise a clamping element capable of locking the optical shutter at a desired attenuation position. The variable light attenuator is capable of attenuating optical beams that have their optical axis running parallel and perpendicular to the substrate. Additionally, the MEMS actuator of the present invention may comprise an array of MEMS actuators capable of supplying the optical shutter with greater displacement distances and, thus a fuller range of optical attenuation. In one embodiment of the invention, the MEMS actuator comprises a thermal arched beam actuator. Additionally, the variable optical attenuator of the present invention may be embodied in a thermal bimorph cantilever structure. This alternate embodiment includes a microelectronic substrate and a thermal bimorph cantilever structure having at least two materials of different thermal coefficient of expansion. The thermal bimorph is responsive to thermal activation and moves in the direction of the material having the lower thermal coefficient expansion. Upon activation, the thermal bimorph intercepts the path of the optical beam and provides for the desired level of optical attenuation. The invention also provides for a method of optical attenuation and a method for fabricating an optical attenuator in accordance with the described structures.

摘要翻译： 提供了一种能够在全光范围内进行光衰减的MEMS（微机电系统）可变光衰减器。 MEMS可变光衰减器包括微电子衬底，MEMS致动器和光学快门。 MEMS可变光衰减器还可以包括能够将光学快门锁定在期望的衰减位置的夹紧元件。 可变光衰减器能够衰减其光轴平行且垂直于衬底的光束。 另外，本发明的MEMS致动器可以包括MEMS致动器的阵列，其能够向光学快门提供更大的位移距离，并且因此具有更宽的光学衰减范围。 在本发明的一个实施例中，MEMS致动器包括热拱形梁致动器。 另外，本发明的可变光衰减器可以以热双压电晶片悬臂结构体现。 该替代实施例包括具有不同热膨胀系数的至少两种材料的微电子衬底和热双压电晶片悬臂结构。 热双压电晶体响应于热激活并沿具有较低热系数膨胀的材料的方向移动。 在激活时，热双压电晶片截取光束的路径并提供所需的光衰减水平。 本发明还提供了一种光衰减的方法以及根据所述结构制造光衰减器的方法。

公开(公告)号：US20090034019A1

公开(公告)日：2009-02-05

申请号：US11831094

申请日：2007-07-31

申请人： Edward A. Hill ,  David M. Lovelace

发明人： Edward A. Hill ,  David M. Lovelace

IPC分类号： H04N1/04

CPC分类号： H04N1/1017 ,  H04N1/103 ,  H04N1/1039 ,  H04N1/1043 ,  H04N2201/0456

摘要： An apparatus and method relating to a least one wheel rotatable about a first axis while movably supporting a reflected light gathering unit extending along a second axis are disclosed.

摘要翻译： 公开了一种可移动地支撑沿着第二轴延伸的反射聚光单元的关于第一轴可旋转的至少一个轮的装置和方法。

公开(公告)号：US06445842B1

公开(公告)日：2002-09-03

申请号：US09542170

申请日：2000-04-05

申请人： Vijayakumar Rudrappa Dhuler ,  Edward A. Hill

发明人： Vijayakumar Rudrappa Dhuler ,  Edward A. Hill

IPC分类号： G02B626

CPC分类号： G02B6/3514 ,  G02B6/3546 ,  G02B6/357 ,  G02B6/358 ,  G02B26/0833 ,  G02B26/0841

摘要： Microelectromechanical (MEM) Optical Cross-connect (OXC) switches having mechanical actuators are discussed. In particular, the MEM OXC switches can include a plurality of reflectors, wherein each of the plurality of the reflectors is movable to at least one of a respective first reflector position along a respective optical beam path from an associated input of the MEM OXC switch to an associated output thereof and a respective second reflector position outside the optical beam path. A mechanical actuator moves to at least one of a first mechanical actuator position and a second mechanical actuator position. A selector selects ones of the plurality of reflectors to be coupled to the mechanical actuator and at least one of the plurality of reflectors to be decoupled from the mechanical actuator, wherein the mechanical actuator is coupled to the selected ones of the plurality of reflectors in the first actuator position and wherein the mechanical actuator moves the selected ones of the plurality of reflectors from the respective first reflector positions to the respective second reflector positions when the mechanical actuator moves from the first mechanical actuator position to the second mechanical actuator position. Related methods are also discussed.

摘要翻译： 讨论了具有机械致动器的微机电（MEM）光交叉连接（OXC）开关。 特别地，MEM OXC开关可以包括多个反射器，其中多个反射器中的每一个可移动到沿着相应的光束路径的相应的第一反射器位置中的至少一个，从MEM OXC开关的相关联的输入到 其相关联的输出和相应的第二反射器位置在光束路径外部。 机械致动器移动到第一机械致动器位置和第二机械致动器位置中的至少一个。 选择器选择要耦合到机械致动器的多个反射器中的一个，并且多个反射器中的至少一个反射器与机械致动器分离，其中机械致动器耦合到多个反射器中的选定的反射器 第一致动器位置，并且其中当机械致动器从第一机械致动器位置移动到第二机械致动器位置时，机械致动器将多个反射器中的选定的反射器从相应的第一反射器位置移动到相应的第二反射器位置。 还讨论了相关方法。

公开(公告)号：US06366186B1

公开(公告)日：2002-04-02

申请号：US09487976

申请日：2000-01-20

申请人： Edward A. Hill ,  Ramaswamy Mahadevan

发明人： Edward A. Hill ,  Ramaswamy Mahadevan

IPC分类号： H01H5122

CPC分类号： H01H50/005 ,  H01H67/22 ,  H01H2001/0078 ,  H01H2036/0093

摘要： A MEMS electrical cross-point switch is provided that includes a microelectronic substrate, a magnetic element attached to the microelectronic substrate that is free to move in a predetermined direction in response to a magnetic field and an electrical element connected to the magnetic element for movement therewith to selectively switch electric current. In one embodiment the magnetic element and the electrical element are connected via a tethering device that acts as a platform for the magnetic and electrical elements. The electrical cross-point switch may also comprise a clamping element that serves to lock the switch in an open or closed position to circumvent the magnetic actuation of the switch. In another embodiment, the invention provides for a MEMS electrical cross-point switching array that includes a microelectronic substrate, a magnetic field source in circuit with said microelectronic substrate, a plurality of first and second electrical lines disposed on the microelectronic substrate in an array formation, and a plurality of the in-plane MEMS electrical cross-point switches as described above disposed at the cross point of a first and second electrical line. In one embodiment the array is configured in a N×N or N×M array having a series of crossing first and second electrical load lines. In another configuration the array has a series of first electrical load lines that extend radially from a central point of reference and a series of second electrical load lines that extend outward, in spoke-like fashion, from the central point of reference.

摘要翻译： 提供了一种MEMS电交叉点开关，其包括微电子衬底，附接到微电子衬底的磁性元件，其响应于磁场而在预定方向上自由移动，并且连接到磁性元件的电气元件用于与其一起运动 以选择性地切换电流。 在一个实施例中，磁性元件和电气元件通过用作磁性元件和电气元件的平台的束缚装置连接。 电交叉点开关还可以包括夹紧元件，其用于将开关锁定在打开或关闭位置，以绕开开关的磁致动。 在另一个实施例中，本发明提供了一种MEMS电交叉点开关阵列，其包括微电子衬底，与所述微电子衬底的电路中的磁场源，设置在微电子衬底上的阵列形成中的多个第一和第二电线 以及设置在第一和第二电线的交叉点处的多个如上所述的面内MEMS电气交叉点开关。 在一个实施例中，阵列被配置在具有一系列交叉的第一和第二电负载线的N×N或N×M阵列中。 在另一种配置中，阵列具有从中心参考点径向延伸的一系列第一电负载线，以及一系列第二电负载线，其以辐射状方式从中心参考点向外延伸。