公开(公告)号：US06209788B1

公开(公告)日：2001-04-03

申请号：US09436468

申请日：1999-11-08

申请人： Raj Bridgelall ,  Edward Barkan ,  Stephen Shellhammer ,  Joseph Campanelli ,  Joseph Katz ,  Yajun Li ,  Daniel R. McGlynn

发明人： Raj Bridgelall ,  Edward Barkan ,  Stephen Shellhammer ,  Joseph Campanelli ,  Joseph Katz ,  Yajun Li ,  Daniel R. McGlynn

IPC分类号： G06K710

CPC分类号： G06K7/10851 ,  G06K7/14 ,  G06K7/1452 ,  G06K7/1478

摘要： An optical scanning system is provided for producing a signal representative of a spatial distribution of indicia having different degrees of reflectivity to light, such as a bar code (14). The system includes an optical scanner (12) for scanning beam of light over the spatial distribution of indicia (14) and for producing an electrical signal corresponding to changes in the degree of reflectivity of the indicia. A digitizer (20), responsive to detections in a predetermined characteristic of the produced electrical signal is provided. The digitizer (20) converts the detections into digital words, such digital signals having a plurality of bits. The digitizer includes a timing generation circuit (42) for producing a pulse in response to each one of the detections with a time duration representative of the degree of reflectivity of the indicia as the beam of light. A decoder converts the time duration of the pulse into the digital word having a plurality of bits. An enhancement filter (30) is also disclosed. The enhancement filter (30) modifies pulses produced by a differentiator circuit (24) used in the scanner. Such modification includes increasing the rise time, and peak level of, the pulses produced by the differentiator circuit (24).

摘要翻译： 提供了一种光学扫描系统，用于产生表示具有不同光反射度的标记的空间分布的信号，例如条形码（14）。 该系统包括用于在标记（14）的空间分布上扫描光束并用于产生对应于标记的反射度的变化的电信号的光学扫描器（12）。 提供了响应于所产生的电信号的预定特性中的检测的数字转换器（20）。 数字转换器（20）将检测转换为数字字，这样的数字信号具有多个位。 数字转换器包括一个定时产生电路（42），用于响应于每个检测产生一个脉冲，时间间隔代表作为光束的标记的反射率。 解码器将脉冲的持续时间转换为具有多个位的数字字。 还公开了增强滤波器（30）。 增强滤波器（30）修改由扫描器中使用的微分电路（24）产生的脉冲。 这种修改包括增加由微分电路（24）产生的脉冲的上升时间和峰值电平。

公开(公告)号：US6164540A

公开(公告)日：2000-12-26

申请号：US651613

申请日：1996-05-22

申请人： Raj Bridgelall ,  Edward Barkan ,  Stephen Shellhammer ,  Joseph Campanelli ,  Joseph Katz ,  Yajun Li ,  Daniel R. McGlynn

发明人： Raj Bridgelall ,  Edward Barkan ,  Stephen Shellhammer ,  Joseph Campanelli ,  Joseph Katz ,  Yajun Li ,  Daniel R. McGlynn

IPC分类号： G06K7/10 ,  G06K7/14

CPC分类号： G06K7/10851 ,  G06K7/14 ,  G06K7/1452 ,  G06K7/1478

摘要： An optical scanner with plural scan beam generation. Scan angle stress is configured in the beam generation.

摘要翻译： 具有多个扫描光束产生的光学扫描器。 在光束产生中配置扫描角应力。

公开(公告)号：US6062476A

公开(公告)日：2000-05-16

申请号：US828275

申请日：1997-03-21

申请人： Miklos Stern ,  Joseph Katz ,  Joseph Campanelli ,  Paul Dvorkis ,  Boris Metlitsky ,  Varl Gurevich ,  Mark Krichever ,  Daniel R. McGlynn

发明人： Miklos Stern ,  Joseph Katz ,  Joseph Campanelli ,  Paul Dvorkis ,  Boris Metlitsky ,  Varl Gurevich ,  Mark Krichever ,  Daniel R. McGlynn

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

CPC分类号： G06K7/10742 ,  G06K7/10574 ,  G06K7/10643 ,  G06K7/10722 ,  G06K7/10811 ,  H01S5/423

摘要： A scanning device incorporates a vertical cavity surface emitting laser (VCSEL). The laser diode may be mounted directly on an Si substrate which is adapted for movement to produce a scan pattern. A collimating lens may be directly mounted on the emitting surface of the laser. A plurality of lasers may be mounted on the substrate and operated in sequence without movement of the substrate to produce the effect of a scan. The scanning device emits visible or invisible light towards a target such as a bar code and a detector (mounted on the same or an adjacent substrate) senses the light reflected by the target to produce data which is decoded for further processing. A VCSEL uses low current and emits light from a relatively large area so that a relatively large amount of light is emitted for relatively small heat generation.

摘要翻译： 扫描装置包括垂直腔表面发射激光器（VCSEL）。 激光二极管可以直接安装在适于移动以产生扫描图案的Si衬底上。 准直透镜可以直接安装在激光器的发射表面上。 多个激光器可以安装在基板上并且依次操作，而不会移动基板以产生扫描的效果。 扫描装置朝向诸如条形码的目标物发射可见光或不可见光，并且检测器（安装在相同或相邻的基板上）感测由目标反射的光以产生被解码以供进一步处理的数据。 VCSEL使用低电流并从相对较大的区域发射光，以便相对较少量的光被发射用于较小的发热。

公开(公告)号：US6024283A

公开(公告)日：2000-02-15

申请号：US999956

申请日：1997-09-17

申请人： Joseph Campanelli ,  Paul Dvorkis ,  Boris Metlitsky ,  Daniel R. McGlynn

发明人： Joseph Campanelli ,  Paul Dvorkis ,  Boris Metlitsky ,  Daniel R. McGlynn

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

CPC分类号： G06K7/10742 ,  G06K7/10574 ,  G06K7/10643 ,  G06K7/10722 ,  G06K7/10811 ,  H01S5/423

摘要： A bar code reader for reading a symbol located at a distance from the laser comprises an array of groups of reading elements and an array of selectable liquid crystal elements. Each of the groups of reading elements have an associated predetermined operating focal distance. At least one liquid crystal element corresponds to each group of reading elements. In the bar code reader, a device activates a selected liquid crystal element to transmit light to a selected group of reading elements. In this way, the reading elements can operate at a predetermined, fixed operating focal distance.

摘要翻译： 用于读取距离激光器一定距离的符号的条形码读取器包括读取元件组和可选择的液晶元件阵列的阵列。 阅读元件组中的每一组具有相关联的预定操作焦距。 至少一个液晶元件对应于每组读取元件。 在条形码读取器中，装置激活所选择的液晶元件以将光传输到所选择的一组读取元件。 以这种方式，读取元件可以以预定的固定的操作焦距工作。

公开(公告)号：US6145743A

公开(公告)日：2000-11-14

申请号：US270341

申请日：1999-03-16

申请人： Paul Dvorkis ,  Daniel R. McGlynn ,  Edward Barkan ,  William Snyder

发明人： Paul Dvorkis ,  Daniel R. McGlynn ,  Edward Barkan ,  William Snyder

IPC分类号： G06K7/10

CPC分类号： G06K7/10742 ,  G06K7/10702

摘要： An optical scanner for reading indicia of variable light reflectivity, such as bar code symbols, having a light source for producing a light beam for scanning a target; a sensor for collecting the reflected light from the target; and various light collection systems, including a louver formed from an array of thin slats positioned adjacent to the sensor so that light directed along substantially only one angle reaches the sensor, as well as imaging/diffusing optical systems.

摘要翻译： 一种用于读取可变光反射率的标记的光学扫描器，例如条形码符号，具有用于产生用于扫描目标的光束的光源; 用于收集来自目标的反射光的传感器; 以及各种光收集系统，包括由邻近传感器定位的薄板条阵列形成的百叶窗，使得基本上仅仅一个角度的光线到达传感器，以及成像/扩散光学系统。

公开(公告)号：US5536930A

公开(公告)日：1996-07-16

申请号：US277694

申请日：1994-07-18

申请人： Edward Barkan ,  Paul Dvorkis ,  David Goren ,  Daniel R. McGlynn

发明人： Edward Barkan ,  Paul Dvorkis ,  David Goren ,  Daniel R. McGlynn

IPC分类号： G06F3/033 ,  G06K7/10

CPC分类号： G06F3/03545 ,  G06F3/03543 ,  G06K7/10881

摘要： A portable terminal includes a housing and a sensor for sensing different specific positional orientations of the housing. In one positional orientation sensed by the sensor, the terminal performs a first function. In another positional orientation sensed by the sensor, the terminal performs a second function which is different from the first function.

摘要翻译： 便携式终端包括壳体和用于感测壳体的不同特定位置取向的传感器。 在由传感器检测到的一个位置方向上，终端执行第一功能。 在由传感器感测的另一位置方向上，终端执行与第一功能不同的第二功能。

公开(公告)号：US5902986A

公开(公告)日：1999-05-11

申请号：US32509

申请日：1998-02-27

申请人： Edward Barkan ,  Joseph Cai ,  Daniel R. McGlynn

发明人： Edward Barkan ,  Joseph Cai ,  Daniel R. McGlynn

IPC分类号： G06K7/10 ,  G06K7/14

CPC分类号： G06K7/10851 ,  G06K7/14 ,  G06K2207/1012

摘要： A reader generates a scanning beam for reading a bar code symbol on a selected item. The reader includes a motion sensor or software program for discriminating between the selected item and other items also having bar code symbols thereon. The motion sensor or software program for discriminating between the items may discriminate between an item swept past the reader and stationary items, or an item moved into the field of view of the reader, held stationary and moved out of the field of view and stationary or moving items or between an item placed within a predetermined distance range and other items.

摘要翻译： 读取器产生用于读取所选项目上的条形码符号的扫描光束。 读取器包括运动传感器或软件程序，用于区分所选项目和其上还具有条形码符号的其它项目。 用于区分物品的运动传感器或软件程序可以区分经过阅读器扫过的物品和静止物品，或者移动到读取器的视野内的物品，保持静止并移动到视野之外并且静止或 移动物品或放置在预定距离范围内的物品和其他物品之间。

公开(公告)号：US5773807A

公开(公告)日：1998-06-30

申请号：US508585

申请日：1995-07-28

申请人： Edward Barkan ,  Joseph Cai ,  Daniel R. McGlynn

发明人： Edward Barkan ,  Joseph Cai ,  Daniel R. McGlynn

IPC分类号： G06K7/10 ,  G06K7/14 ,  G06F17/00

CPC分类号： G06K7/10851 ,  G06K7/14 ,  G06K2207/1012

摘要： A reader generates a scanning beam for reading a bar code symbol on a selected item. The reader includes a database in which codes for all symbols to be read are stored, and frequency of use data indicative of how often each stored code has been read. A processor compares the code of the symbol being scanned with the stored codes. Upon a successful comparison, the code is processed as a valid code. Upon failure to match the code to one of the stored codes, a most likely code is selected as the valid code. The most likely code is based on the frequency of use data.

摘要翻译： 读取器产生用于读取所选项目上的条形码符号的扫描光束。 读取器包括存储有要读取的所有符号的代码的数据库，以及指示每个存储的代码被读取的频率的使用频率。 处理器将被扫描符号的代码与存储的代码进行比较。 成功比较后，代码将作为有效代码进行处理。 在将代码与存储的代码之一匹配失败后，选择最可能的代码作为有效代码。 最可能的代码是基于使用频率的数据。

公开(公告)号：US5923021A

公开(公告)日：1999-07-13

申请号：US131303

申请日：1998-08-10

申请人： Paul Dvorkis ,  Daniel R. McGlynn ,  Edward Barkan ,  William Snyder ,  David Goren ,  Gregg Marwin

发明人： Paul Dvorkis ,  Daniel R. McGlynn ,  Edward Barkan ,  William Snyder ,  David Goren ,  Gregg Marwin

IPC分类号： G06K7/10

CPC分类号： G06K7/10742 ,  G06K7/10702

摘要： An optical scanner for reading indicia of variable light reflectivity, such as bar code symbols, having a light source for producing a light beam for scanning a target; a sensor for collecting the reflected light from the target; and various light collection systems, including a louver formed from an array of thin slats positioned adjacent to the sensor so that light directed along substantially only one angle reaches the sensor, as well as imaging/diffusing optical systems.

公开(公告)号：US5656804A

公开(公告)日：1997-08-12

申请号：US614068

申请日：1996-03-12

申请人： Edward Barkan ,  Paul Dvorkis ,  David Goren ,  Daniel R. McGlynn

发明人： Edward Barkan ,  Paul Dvorkis ,  David Goren ,  Daniel R. McGlynn

IPC分类号： G06F3/033 ,  G06K7/10

CPC分类号： G06F3/03545 ,  G06F3/03543 ,  G06K7/10881

摘要： A portable terminal has a housing with a motion detector housed therein. Movement of the housing from a a rest position is detected by sensing the motion of a coil or magnet located within the housing. A controller activates circuitry within the housing responsive to the detected movement. The terminal may include a touch sensitive display, on a flat front surface of the housing. A light emitter and an optical detector may also be disposed within the housing. Preferably, the terminal also houses a sensor for sensing different specific positional orientations of the terminal and activating or deactivating terminal functions depending on the sensed orientation.

摘要翻译： 便携式终端具有容纳在其中的运动检测器的壳体。 通过感测位于壳体内的线圈或磁体的运动来检测壳体从静止位置的移动。 控制器响应于检测到的移动来激活壳体内的电路。 终端可以在壳体的平坦前表面上包括触敏显示器。 光发射器和光学检测器也可以设置在壳体内。 优选地，终端还容纳用于感测终端的不同特定位置取向的传感器，并且根据感测到的取向激活或停用终端功能。