公开(公告)号：US5798515A

公开(公告)日：1998-08-25

申请号：US627168

申请日：1996-04-03

申请人： Yajun Li ,  Edward Barkan

发明人： Yajun Li ,  Edward Barkan

IPC分类号： G06K7/14 ,  G06G7/10

CPC分类号： G06K7/14

摘要： A bar code scanner comprises a first collection optical system having an optical axis and a first magnification, a detector disposed along the optical axis and in optical communication with the first collection optical system, a second collection optical system having a second magnification greater than the first magnification and having an optical axis and displacing means operable for selectively moving the second collection optical system to dispose the optical axis thereof in coincidence with the optical axis of the first collection optical system.

摘要翻译： 条形码扫描器包括具有光轴和第一放大率的第一收集光学系统，沿着光轴设置并与第一收集光学系统光学通信的检测器;第二收集光学系统，具有大于第一倍率的第二倍率 具有光轴和移动装置，其可操作用于选择性地移动第二收集光学系统以将其光轴与第一收集光学系统的光轴重合。

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：US5742038A

公开(公告)日：1998-04-21

申请号：US268982

申请日：1994-06-30

申请人： Paul Dvorkis ,  Edward Barkan ,  Boris Metlitsky

发明人： Paul Dvorkis ,  Edward Barkan ,  Boris Metlitsky

IPC分类号： G02B26/10 ,  G06K5/00 ,  G06K7/10 ,  G06K7/14 ,  G06K19/06 ,  H01S3/17 ,  H01S5/00

CPC分类号： G06K5/00 ,  G06K19/06028 ,  G06K7/10584 ,  G06K7/10594 ,  G06K7/10623 ,  G06K7/10801 ,  G06K7/10851 ,  G06K7/10881 ,  G06K7/14

摘要： An optical scanner such as a bar code scanner includes a laser diode to create the scanning laser beam. Laser diodes are characteristically astigmatic, and when passed through a rotationally symmetric lens the beam typically forms a waist both in the x (scanning) direction and in the y (perpendicular) direction. The width of the beam envelope in the x direction is adjusted by means of a conventional lens. The width of the beam envelope in the y direction is adjusted by the use of a non-planar mirror, preferably a cylindrical mirror, as the rotating or oscillating element.

摘要翻译： 诸如条形码扫描器的光学扫描仪包括用于产生扫描激光束的激光二极管。 激光二极管的特征是散光，当通过旋转对称透镜时，光束通常在x（扫描）方向和y（垂直）方向上形成腰部。 通过传统的透镜来调整光束包络线在x方向上的宽度。 通过使用非平面镜（优选圆柱形镜）作为旋转或振荡元件来调节光束包络线在y方向上的宽度。

公开(公告)号：US5581070A

公开(公告)日：1996-12-03

申请号：US467124

申请日：1995-06-06

申请人： Paul Dvorkis ,  Howard Shepard ,  Simon Bard ,  Joseph Katz ,  Edward Barkan

发明人： Paul Dvorkis ,  Howard Shepard ,  Simon Bard ,  Joseph Katz ,  Edward Barkan

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 ,  G06K2207/1011 ,  G06K2207/1016 ,  G06K2207/1018

摘要： High speed scanning arrangements in scanners for reading bar code symbols by oscillating a scanner component in single or multi-axis scan patterns.

摘要翻译： 在扫描仪中通过以单轴或多轴扫描模式振荡扫描仪组件来读取条形码符号的高速扫描装置。

公开(公告)号：US5545888A

公开(公告)日：1996-08-13

申请号：US445546

申请日：1995-05-22

申请人： Edward Barkan ,  Raj Bridgelall

发明人： Edward Barkan ,  Raj Bridgelall

IPC分类号： G06K7/00 ,  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 ,  G06K7/1478 ,  G06K2207/1011 ,  G06K2207/1016 ,  G06K2207/1018

摘要： A circuit for digitizing an analog signal generated from a photoelectric conversion of reflected light when scanning indicia having spatially-separated, light-reflective portions bounded by edges includes a differentiator for differentiating the analog signal. An inverter inverts the differentiated signal to generate an inverted signal. A negative peak detector detects negative amplitude peaks and a positive peak detector detects positive amplitude peaks of the differentiated signal and generate, respectively, a negative and positive peak signal. Adders are used to add the positive peak signal to the inverted signal, and the negative peak signal to the inverted signal. A comparator compares the two summed signals to the differentiated signal and generates pulse signals indicative of the edges of the analog signal. A controller, in response to the pulse signals, generates a digital signal corresponding to the indicia being scanned.

摘要翻译： 当扫描具有由边界限定的空间分离的光反射部分的标记时，用于数字化由反射光的光电转换产生的模拟信号的电路包括用于微分模拟信号的微分器。 反相器反转微分信号以产生反相信号。 负峰值检测器检测负振幅峰值，正峰值检测器检测微分信号的正振幅峰值，分别产生负峰值信号和正峰值信号。 加法器用于将正峰值信号加到反相信号，负峰值信号加到反相信号。 比较器将两个相加的信号与微分信号进行比较，并产生指示模拟信号的边沿的脉冲信号。 响应于脉冲信号的控制器产生对应于被扫描的标记的数字信号。

公开(公告)号：US5504595A

公开(公告)日：1996-04-02

申请号：US225350

申请日：1994-04-08

申请人： Emanuel Marom ,  Joseph Katz ,  Edward Barkan

发明人： Emanuel Marom ,  Joseph Katz ,  Edward Barkan

IPC分类号： G02B26/10 ,  G06K7/10 ,  G02B5/18 ,  G02B5/32 ,  G02B27/44

CPC分类号： G02B26/106 ,  G06K7/10663

摘要： A holographic grating element is provided which enables tracing different scan lines. The element is divided into a plurality of sectors. A first grating pattern is provided which diffracts a beam in one direction, and a second grating pattern is next to the first and diffracts the scan beam in the reverse direction. Sectors can be produced with different sector sizes to enable scanning at different rates in the reverse direction, or in successive scans in the same direction. Angle relationships are described to produce diffraction patterns for a desired relationship between disc rotation and the angle of the scan line.

摘要翻译： 提供了一种能够跟踪不同扫描线的全息光栅元件。 该元件被分成多个扇区。 提供了在一个方向上衍射光束的第一光栅图案，并且第二光栅图案与第一光栅图案相邻，并沿相反方向衍射扫描光束。 扇区可以生产不同的扇区大小，以便能够以相反方向以不同速率进行扫描，也可以在相同方向上进行连续扫描。 描述角度关系以产生用于盘旋转和扫描线的角度之间期望关系的衍射图案。

公开(公告)号：US5280163A

公开(公告)日：1994-01-18

申请号：US904937

申请日：1992-06-26

申请人： Edward Barkan

发明人： Edward Barkan

IPC分类号： G02B26/10 ,  G06K7/10 ,  H02P6/08

CPC分类号： G06K7/10881 ,  G06K2207/1016

摘要： A drive circuit for a bar code scanner for driving an oscillatory resonant motor therein which periodically oscillates in opposite rotary directions to impart an oscillatory motion to a scanning mirror of the bar code scanner. In the disclosed drive arrangement, the motor is driven at its own natural resonant frequency, which requires very little current to maintain the oscillatory motion. A scanning beam is directed against the oscillating scanning mirror, which causes the beam to be periodically scanned across a field of view of the bar code scanner. A detector detects reflections of the scanned beam, as by a bar code symbol being scanned, and generates an output signal representative thereof. The resonant motor, having a rotor with a permanent magnet mounted thereon, drives the scanning mirror, and includes a drive winding positioned adjacent to the permanent magnet for applying a driving force thereto only in a first rotary direction, and a feedback winding also positioned adjacent to the permanent magnet for deriving a substantially sinusoidal feedback voltage as the permanent magnet periodically passes in opposite directions by the feedback winding. A drive circuit for the resonant motor includes a drive amplifier coupled to the feedback winding which is turned on only by positive halves of the feedback voltage. A driver transistor is coupled between the drive amplifier and the drive winding to drive the motor only during positive halves of the feedback voltage. A return biasing spring drives the rotor in the second rotary direction.

摘要翻译： 一种用于驱动其中振荡谐振电动机的条形码扫描器的驱动电路，其周期性地以相反的旋转方向振荡，以向条形码扫描器的扫描反射镜施加振荡运动。 在所公开的驱动装置中，马达以其自身的固有谐振频率被驱动，这需要很少的电流来保持振荡运动。 扫描光束被引导到振荡扫描反射镜，这使得波束在条形码扫描器的视野上被周期性地扫描。 检测器检测扫描光束的反射，如通过扫描的条形码符号，并产生代表其的输出信号。 具有安装在其上的永磁体的转子的谐振电动机驱动扫描反射镜，并且包括与永磁体相邻的驱动绕组，用于仅在第一旋转方向上施加驱动力，反馈绕组也位于相邻的位置 到永久磁铁，用于当永磁体通过反馈绕组在相反方向周期性地通过时导出基本上正弦的反馈电压。 用于谐振电动机的驱动电路包括耦合到反馈绕组的驱动放大器，该反馈绕组仅由反馈电压的正半部导通。 驱动器晶体管耦合在驱动放大器和驱动绕组之间，仅在正反馈电压的一半驱动电动机。 回转偏压弹簧沿第二旋转方向驱动转子。

公开(公告)号：US5268564A

公开(公告)日：1993-12-07

申请号：US47340

申请日：1993-04-19

申请人： Boris Metlitsky ,  Jerome Swartz ,  Edward Barkan ,  Howard Shepard ,  David Goren ,  Tony Biuso

发明人： Boris Metlitsky ,  Jerome Swartz ,  Edward Barkan ,  Howard Shepard ,  David Goren ,  Tony Biuso

IPC分类号： G06K7/10 ,  G08K7/10

CPC分类号： G06K7/10881 ,  G06K7/10851 ,  G06K2207/1013 ,  Y10T307/799

摘要： A bar code scanner which is responsive to the movement of the scanner to activate its light source. The scanner includes a motor having a moving member which is set in motion when the scanner is displaced from a rest position. The moving member generates a voltage in a coil, which activates the operation of the bar code scanner.

摘要翻译： 一种条形码扫描仪，其响应于扫描器的移动以激活其光源。 扫描器包括具有移动构件的马达，该移动构件在扫描器从静止位置移位时被设置成运动。 移动构件产生线圈中的电压，其激活条形码扫描器的操作。

公开(公告)号：US5198651A

公开(公告)日：1993-03-30

申请号：US695075

申请日：1991-05-03

申请人： Edward Barkan ,  Howard Shepard

发明人： Edward Barkan ,  Howard Shepard

IPC分类号： G06K7/10

CPC分类号： G06K7/10881 ,  G06K7/1098 ,  G06K2207/1016

摘要： A laser scanning device for projecting a laser beam against a target having information contained thereon which is to be scanned by the laser beam. The device is in particular a compact bar code reader which incorporates internal unitary structure with a resiliently mounted integral scanning motor for compactly supporting various laser and optics components for modular installation in the device, and which protects at least the integral scanning motor from external impacts and shock loads.

摘要翻译： 一种激光扫描装置，用于将激光束投射到具有由激光束扫描的信息的靶上。 该设备特别是紧凑型条形码读取器，其内置单一结构与弹性安装的整体式扫描电机，用于紧凑地支撑各种激光和光学部件，用于模块化安装在设备中，并且至少保护整体扫描电机免受外部冲击和 冲击载荷。

公开(公告)号：US5140144A

公开(公告)日：1992-08-18

申请号：US667674

申请日：1991-03-11

申请人： Howard M. Shepard ,  Yuri Gofman ,  Edward Barkan

发明人： Howard M. Shepard ,  Yuri Gofman ,  Edward Barkan

IPC分类号： G06K7/10

CPC分类号： G06K7/10881

摘要： A scan board module includes a printed circuit board on which optical and scanning components are mounted in an optically-aligned relationship. The module is mountable in hand-held heads and protected from damage due to external shock by shock mounts, or in workstations which are either directly of indirectly connected to a cash register-type terminal or hand-held terminal.

摘要翻译： 扫描板模块包括印刷电路板，光学和扫描部件以光学对准关系安装在该印刷电路板上。 该模块可安装在手持式头部中，防止由于冲击支架的外部冲击而损坏，或直接与收银机型端子或手持式端子连接的工作站。