公开(公告)号：US20060065735A1

公开(公告)日：2006-03-30

申请号：US10956693

申请日：2004-09-30

申请人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

发明人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

IPC分类号： G06K7/10

CPC分类号： G06K7/10702 ,  G06K7/10683

摘要： An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.

摘要翻译： 用于确定电光读取器，图像投影仪等装置中的光束位置的装置包括用于以扫描线跨扫描频率移动扫描光束的驱动器，以及电光反馈组件，其可操作地连接到 驱动器，用于在光束移动期间光学检测扫描线位置，并且用于在扫描频率处产生反馈信号，反馈信号指示扫描线位置。 消除驱动器中的反馈线圈，以避免驱动器中多个线圈之间的电磁耦合。

公开(公告)号：US06575370B1

公开(公告)日：2003-06-10

申请号：US09724745

申请日：2000-08-31

申请人： Paul Dvorkis ,  Edward Barkan ,  Yajun Li

发明人： Paul Dvorkis ,  Edward Barkan ,  Yajun Li

IPC分类号： G06K710

CPC分类号： G06K7/10564 ,  G06K7/10584 ,  G06K7/10633 ,  G06K7/10643 ,  G06K7/10653 ,  G06K7/10673 ,  G06K7/10693 ,  G06K7/10811 ,  G06K7/10851 ,  G06K7/10871 ,  G06K7/10881 ,  G06K7/10891 ,  G06K7/109 ,  G06K7/1098 ,  G06K7/1478 ,  G06K2007/10534 ,  G06K2207/1011 ,  G06K2207/1013 ,  G06K2207/1016 ,  G06K2207/1018

摘要： A compact assembly for electro-optically scanning indicia includes an oscillatable component operative for focusing, and for sweeping, a light beam across the indicia and, optionally, for correcting for scan aberration. A laser diode for emitting the beam is inserted into a central opening surrounded by an electromagnetic coil to conserve space. A magnet on the component interacts with the coil to effect oscillation. A floating flexure returns the component to an equilibrium position.

摘要翻译： 用于电光扫描标记的紧凑组件包括可操作用于聚焦和扫描光束跨越标记的可振荡部件，并且可选地用于校正扫描像差。 用于发射光束的激光二极管插入由电磁线圈围绕的中心开口以节省空间。 组件上的磁体与线圈相互作用以实现振荡。 浮动弯曲将组件返回到平衡位置。

公开(公告)号：US20070181688A1

公开(公告)日：2007-08-09

申请号：US11593215

申请日：2006-11-06

申请人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

发明人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

IPC分类号： G06K7/10

CPC分类号： G06K7/10702 ,  G06K7/10683

摘要： An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.

摘要翻译： 用于确定电光读取器，图像投影仪等装置中的光束位置的装置包括用于以扫描线跨扫描频率移动扫描光束的驱动器，以及电光反馈组件，其可操作地连接到 驱动器，用于在光束移动期间光学检测扫描线位置，并且用于在扫描频率处产生反馈信号，反馈信号指示扫描线位置。 消除驱动器中的反馈线圈，以避免驱动器中多个线圈之间的电磁耦合。

公开(公告)号：US07367510B2

公开(公告)日：2008-05-06

申请号：US11593215

申请日：2006-11-06

申请人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick F. Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

发明人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick F. Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

IPC分类号： G06K7/10

CPC分类号： G06K7/10702 ,  G06K7/10683

摘要： An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.

摘要翻译： 用于确定电光读取器，图像投影仪等装置中的光束位置的装置包括用于以扫描线跨扫描频率移动扫描光束的驱动器，以及电光反馈组件，其可操作地连接到 驱动器，用于在光束移动期间光学检测扫描线位置，并且用于在扫描频率处产生反馈信号，反馈信号指示扫描线位置。 消除驱动器中的反馈线圈，以避免驱动器中多个线圈之间的电磁耦合。

公开(公告)号：US07182263B2

公开(公告)日：2007-02-27

申请号：US10956693

申请日：2004-09-30

申请人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick F. Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

发明人： Yajun Li ,  Paul Dvorkis ,  Dmitriy Yavid ,  Frederick F. Wood ,  Miklos Stern ,  Edward Barkan ,  Narayan Nambudri

IPC分类号： G06K7/10

CPC分类号： G06K7/10702 ,  G06K7/10683

摘要： An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.

公开(公告)号：US06360949B1

公开(公告)日：2002-03-26

申请号：US09275858

申请日：1999-03-24

申请人： Howard Shepard ,  Edward D. Barkan ,  Paul Dvorkis ,  Boris Metlitsky ,  Raj Bridgelall ,  Vladimir Gurevich ,  Mark Krichever ,  Yajun Li ,  Joseph Katz ,  Vincent Luciano

发明人： Howard Shepard ,  Edward D. Barkan ,  Paul Dvorkis ,  Boris Metlitsky ,  Raj Bridgelall ,  Vladimir Gurevich ,  Mark Krichever ,  Yajun Li ,  Joseph Katz ,  Vincent Luciano

IPC分类号： G06K710

CPC分类号： G06K7/10653 ,  G06K7/10683

摘要： A miniaturized electro-optical, retro-reflective scanning module. The module has a base, a first circuit board, and a second circuit board mounted substantially orthogonal to the first circuit board. The base supports a light emitter for producing a scanning beam and optical elements for directing and collecting light energy. The emitted beam reflects off a fold mirror onto a reflector mounted on a drive for oscillation. The oscillating reflector, in turn, redirects the beam onto an indicia being read. The reflected light is reflected off the oscillating reflector and directed to the collection mirror before reaching a detector. The detector included in the module senses light reflected from an indicia scanned by the beam. The reflector is driven by an electro-magnetiz driven system, including a flexure and an actuation arm.

摘要翻译： 小型化的电光反光扫描模块。 模块具有底座，第一电路板和大致正交于第一电路板安装的第二电路板。 基座支撑用于产生扫描光束的光发射器和用于引导和收集光能的光学元件。 发射的光束从折叠镜反射到安装在用于振荡的驱动器上的反射器上。 振荡反射器又将光束重定向到被读取的标记上。 反射光从振荡反射器反射并在到达检测器之前被引导到收集镜。 包括在模块中的检测器感测由光束扫描的标记反射的光。 反射器由电磁驱动系统驱动，包括挠曲件和致动臂。

公开(公告)号：US6059188A

公开(公告)日：2000-05-09

申请号：US631364

申请日：1996-04-12

申请人： Costanz.o slashed. diFazio ,  Thomas Mazz ,  Chinh Tan ,  Miklos Stern ,  Henry Grossfeld ,  Paul Dvorkis ,  Peter Fazekas ,  Yajun Li ,  Joseph Katz ,  Askold Strat ,  Greg Martino

发明人： Costanz.o slashed. diFazio ,  Thomas Mazz ,  Chinh Tan ,  Miklos Stern ,  Henry Grossfeld ,  Paul Dvorkis ,  Peter Fazekas ,  Yajun Li ,  Joseph Katz ,  Askold Strat ,  Greg Martino

IPC分类号： G06K7/10 ,  H01S5/183 ,  H01S5/42

CPC分类号： G06K7/10742 ,  G06K7/10574 ,  G06K7/10643 ,  G06K7/10653 ,  G06K7/10702 ,  G06K7/10811 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/183 ,  H01S5/423

摘要： An integrated optical module for an optical scanner has a lens spaced from a vertical-cavity surface-emitting laser (VCSEL) by a spacer of defined dimensions. The module, in an alternative embodiment, includes a wafer frame, a suspended mirror mounted for oscillation on the frame, a wafer substrate bonded beneath the frame and a wafer cover bonded above the frame. The cover includes a mirror travel stop to protect the mirror against shocks. A VCSEL mounted to the wafer cover produces a beam which is shaped and deflected by a diffractive optical element onto the oscillating mirror. The reflected beam passes out of the module toward an indicia to be read. Large numbers of such devices may be fabricated relatively cheaply using wafer-scale processing and assembly technology. Three large wafers are fabricated corresponding respectively to arrays of substrates, frames and covers. The large wafers are bonded together in a sandwich arrangement, and are then diced to produce the individual scan modules. The modules may provide either one-dimensional or two-dimensional scanning.

摘要翻译： 用于光学扫描仪的集成光学模块具有通过限定尺寸的间隔件与垂直腔表面发射激光器（VCSEL）间隔开的透镜。 在替代实施例中，该模块包括晶片框架，安装用于在框架上摆动的悬挂镜，结合在框架下方的晶片衬底以及粘结在框架上方的晶片盖。 盖子包括镜子行驶挡板，以防止镜子受到冲击。 安装到晶片盖的VCSEL产生由衍射光学元件成形并偏转到振动反射镜上的光束。 反射光束从模块朝向要读取的标记。 可以使用晶片级处理和组装技术相对便宜地制造大量的这种装置。 制造三个大的晶片，分别对应于基板，框架和盖子的阵列。 大晶片以夹层结构结合在一起，然后被切割以产生各个扫描模块。 模块可提供一维扫描或二维扫描。

公开(公告)号：US5637856A

公开(公告)日：1997-06-10

申请号：US533021

申请日：1995-09-25

申请人： Raj Bridgelall ,  Joseph Katz ,  David P. Goren ,  Paul Dvorkis ,  Yajun Li

发明人： Raj Bridgelall ,  Joseph Katz ,  David P. Goren ,  Paul Dvorkis ,  Yajun Li

IPC分类号： G06K7/10

CPC分类号： G06K7/10564 ,  G06K7/10584 ,  G06K7/10633 ,  G06K7/10643 ,  G06K7/10653 ,  G06K7/10673 ,  G06K7/10693 ,  G06K7/10811 ,  G06K7/10851 ,  G06K7/10871 ,  G06K7/10881 ,  G06K7/10891 ,  G06K7/109 ,  G06K7/1098 ,  G06K7/1478 ,  G06K2007/10534 ,  G06K2207/1011 ,  G06K2207/1013 ,  G06K2207/1016 ,  G06K2207/1018

摘要： Optical scanning of one- and two-dimensional barcode symbols is carried out first in an aim mode wherein the symbol is scanned using a first scan pattern that is relatively small and dense so as to be visible to the user and thereafter using a second, larger and more robust scan pattern for decoding. During aiming, the symbol is partially decoded to determine type and orientation, and this information is applied to control the angle of the scan pattern produced, the rate at which the scan pattern is increased for optimum decoding, and the ultimate pattern size. Preferred scan patterns, as well as unique scan mechanisms, are described.

摘要翻译： 首先在目标模式中执行一维和二维条形码符号的光学扫描，其中使用相对较小和密集的第一扫描图案来扫描符号，以便对用户可见，然后使用第二较大的 和更强大的扫描模式进行解码。 在瞄准期间，符号被部分地解码以确定类型和方向，并且该信息被应用于控制所产生的扫描图案的角度，扫描图案被提高的速率以用于最佳解码，以及最终图案尺寸。 描述了优选的扫描模式以及独特的扫描机制。

公开(公告)号：US5504316A

公开(公告)日：1996-04-02

申请号：US153053

申请日：1993-11-17

申请人： Raj Bridgelall ,  Joseph Katz ,  David P. Goren ,  Paul Dvorkis ,  Yajun Li

发明人： Raj Bridgelall ,  Joseph Katz ,  David P. Goren ,  Paul Dvorkis ,  Yajun Li

IPC分类号： G06K7/10

CPC分类号： G06K7/10564 ,  G06K7/10584 ,  G06K7/10633 ,  G06K7/10643 ,  G06K7/10653 ,  G06K7/10673 ,  G06K7/10693 ,  G06K7/10811 ,  G06K7/10851 ,  G06K7/10871 ,  G06K7/10881 ,  G06K7/10891 ,  G06K7/109 ,  G06K7/1098 ,  G06K7/1478 ,  G06K2007/10534 ,  G06K2207/1011 ,  G06K2207/1013 ,  G06K2207/1016 ,  G06K2207/1018

摘要： Optical scanning of one- and two-dimensional barcode symbols is carried out first in an aim mode wherein the symbol is scanned using a first scan pattern that is relatively small and dense so as to be visible to the user and thereafter using a second, larger and more robust scan pattern for decoding. During aiming, the symbol is partially decoded to determine type and orientation, and this information is applied to control the angle of the scan pattern produced, the rate at which the scan pattern is increased for optimum decoding, and the ultimate pattern size. Preferred scan patterns, as well as unique scan mechanisms, are described.

摘要翻译： 首先在目标模式中执行一维和二维条形码符号的光学扫描，其中使用相对较小和密集的第一扫描图案来扫描符号，以便对用户可见，然后使用第二较大的 和更强大的扫描模式进行解码。 在瞄准期间，符号被部分地解码以确定类型和方向，并且该信息被应用于控制所产生的扫描图案的角度，扫描图案被提高的速率以用于最佳解码，以及最终图案尺寸。 描述了优选的扫描模式以及独特的扫描机制。

公开(公告)号：US5861615A

公开(公告)日：1999-01-19

申请号：US595162

申请日：1996-02-01

申请人： Raj Bridgelall ,  Joseph Katz ,  David P. Goren ,  Paul Dvorkis ,  Yajun Li

发明人： Raj Bridgelall ,  Joseph Katz ,  David P. Goren ,  Paul Dvorkis ,  Yajun Li

IPC分类号： G06K7/10

CPC分类号： G06K7/10871 ,  G06K7/10564 ,  G06K7/10584 ,  G06K7/10633 ,  G06K7/10643 ,  G06K7/10653 ,  G06K7/10673 ,  G06K7/10693 ,  G06K7/10811 ,  G06K7/10851 ,  G06K7/10881 ,  G06K7/10891 ,  G06K7/109 ,  G06K7/1098 ,  G06K7/1478 ,  G06K2007/10534 ,  G06K2207/1011 ,  G06K2207/1013 ,  G06K2207/1016 ,  G06K2207/1018

摘要： A hand-held optical reader for reading printed indicia on a remote target includes a light source for generating a scanning light beam and a detector for detecting the light reflected from the printed indicia. The light source and detector are housed within a housing having a window through which the light beam passes from the source to the target for reflection from the target to the detector. The housing includes parallel front and rear faces, each being generally rectangular in shape and having a lower portion and upper portion. The front and rear faces are joined by a substantially planar base face at their lower edges. The window is disposed in the front face with the reader being ergonomically configured so as be comfortably held in the hand of a user, with the user's palm adjacent the rear face to enable the user to direct the scanning light beam at a remote target.