Compact bar code scanning module with shock protection
    1.
    发明授权
    Compact bar code scanning module with shock protection 失效
    紧凑型条形码扫描模块,具有防震功能

    公开(公告)号:US5581067A

    公开(公告)日:1996-12-03

    申请号:US326328

    申请日:1994-10-20

    IPC分类号: G06K7/10

    摘要: A scanner module for use in a bar code reader has a scanning mirror which is mounted to a bracket by way of leaf-spring, allowing the mirror to oscillate in one direction. The bracket is hung from a stationary chassis by means of two strips of mylar film, allowing the entire bracket to oscillate in the perpendicular direction, thereby providing two dimensional oscillation of the mirror and raster scanning of a light beam reflected from the mirror. The mylar sheets are protected against mechanical shock by pins which pass through holes in the bracket. The pins are slightly smaller than the holes, allowing sufficient clearance for movement of the bracket during normal operation, but preventing too much stress being placed upon the mylar films if the module is dropped. The pins also provide accurate alignment of the bracket with respect to the chassis.

    摘要翻译: 用于条形码读取器的扫描器模块具有扫描反射镜,其通过板簧安装到支架,允许反射镜在一个方向上振荡。 支架通过两条聚酯薄膜悬挂在固定底盘上,允许整个支架沿垂直方向摆动,从而提供反射镜的二维振荡和从反射镜反射的光束的光栅扫描。 聚酯薄膜片通过穿过支架中的孔的销被防止机械冲击。 这些销比孔稍小,在正常操作期间允许足够的间隙移动支架,但是如果模块掉落,则防止太多的压力放置在聚脂薄膜上。 引脚还提供支架相对于机架的精确对准。

    Package-integrated RF relay
    4.
    发明授权
    Package-integrated RF relay 失效
    封装集成射频继电器

    公开(公告)号:US07091859B2

    公开(公告)日:2006-08-15

    申请号:US10341849

    申请日:2003-01-13

    IPC分类号: G08B13/14

    摘要: Containers for holding goods are provided with a relay conductive structure for relaying RFID tags signals from one side of the container to another. The conductive structure includes a first antenna on the first side of the container, a second antenna on a second side of the container and a transmission line connecting the antennas. When the containers are arranged in a stack, the relay of RFID signals past each row of containers enables the interrogation toward the rear of the stack without disassembling the stack of containers.

    摘要翻译: 用于保持货物的容器设置有用于将RFID标签信号从容器的一侧传递到另一侧的继电器导电结构。 导电结构包括在容器的第一侧上的第一天线,在容器的第二侧上的第二天线和连接天线的传输线。 当容器布置成堆叠时,RFID信号的继电器经过每排容器使得能够在不拆卸容器堆的情况下向堆叠的后部询问。

    Multi-frequency RFID apparatus and methods of reading RFID tags
    5.
    发明申请
    Multi-frequency RFID apparatus and methods of reading RFID tags 有权
    多频RFID设备和阅读RFID标签的方法

    公开(公告)号:US20060066441A1

    公开(公告)日:2006-03-30

    申请号:US10957529

    申请日:2004-09-30

    IPC分类号: H04Q5/22

    摘要: A portable/handheld device is provided having a processing module configured to selectively operate a reading mode selected from a far-field mode and a near-field mode, and a directional antenna array coupled to the processing module. The directional antenna array includes a first antenna element configured to radiate electromagnetic (EM) radiation in a far-field, and a second antenna element coupled to the first antenna element. The second antenna element is configured to radiate EM radiation in a near-field. The second antenna element includes an antenna transducer configured to selectively cancel far-field EM radiation from the first antenna element. A method of reading inductively coupled radio frequency identification (RFID) tags is also provided having the steps of scanning at least one frequency band to detect a RFID tag, and selectively radiating one of a near-field electromagnetic (EM) field and a far-field EM field based on the detected RFID tag.

    摘要翻译: 提供了一种便携式/手持式装置,其具有被配置为选择性地操作从远场模式和近场模式选择的读取模式的处理模块以及耦合到处理模块的定向天线阵列。 定向天线阵列包括被配置为辐射远场中的电磁(EM)辐射的第一天线元件和耦合到第一天线元件的第二天线元件。 第二天线元件被配置为在近场辐射EM辐射。 第二天线元件包括被配置为选择性地抵消来自第一天线元件的远场EM辐射的天线换能器。 还提供一种读取电感耦合射频识别(RFID)标签的方法,其具有扫描至少一个频带以检测RFID标签的步骤,并且选择性地辐射近场电磁场(EM)场和远场识别 基于检测到的RFID标签的场EM场。

    System and method for tracking data related to containers using RF technology
    6.
    发明申请
    System and method for tracking data related to containers using RF technology 失效
    使用RF技术跟踪与容器有关的数据的系统和方法

    公开(公告)号:US20050107092A1

    公开(公告)日:2005-05-19

    申请号:US10717062

    申请日:2003-11-19

    摘要: Described are RF tracking system and method. The RF system may include a shell for holding a plurality of containers which store a material that interferes with RF communications. The shell includes a bottom container supporting surface and a plurality of leg extensions attached thereto; the shell extends away from the bottom surface. The tracking system also includes at least one RF tag attached to a first one of the leg extensions. The tag has a memory arrangement storing data relating to at least one of an identity of the shell, an identity of the containers held in the shell and a material stored in the containers. Furthermore, the tracking system includes at least one RF scanner communicating with the tag to collect the data and a computing arrangement which includes a database and communicating with the scanner to update the database as a function of the collected data. The tag is situated at a predetermined distance away from the containers held in the shell to overcome an electromagnetic dampening effect of the material.

    摘要翻译: 描述的是RF跟踪系统和方法。 RF系统可以包括用于容纳存储干扰RF通信的材料的多个容器的外壳。 壳体包括底部容器支撑表面和附接到其上的多个腿部延伸部分; 壳体远离底部表面延伸。 跟踪系统还包括附接到第一个腿部延伸部的至少一个RF标签。 标签具有存储装置,其存储与壳体的身份,保存在壳体中的容器的身份以及存储在容器中的材料中的至少一个有关的数据。 此外,跟踪系统包括与标签通信以收集数据的至少一个RF扫描仪,以及包括数据库并与扫描仪通信的计算装置,以根据收集的数据更新数据库。 标签距离保持在壳体中的容器预定距离,以克服材料的电磁阻尼作用。

    Directional antenna array
    7.
    发明申请
    Directional antenna array 有权
    定向天线阵列

    公开(公告)号:US20050057418A1

    公开(公告)日:2005-03-17

    申请号:US10661652

    申请日:2003-09-12

    CPC分类号: H01Q9/285 H01Q19/30

    摘要: A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of an free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of an electromagnetic energy source and an electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.

    摘要翻译: 提供了一种定向天线阵列,其包括被驱动元件和与被驱动元件分离的第一寄生元件,第一寄生元件和/或被驱动元件的宽度大于所述驱动元件的大约百分之零点五 定向天线阵列的自由空间波长。 替代地或结合地,定向天线阵列包括平衡 - 不平衡转换器结构,其被配置为将驱动元件耦合到电磁能量源和电磁宿中的至少一个,并且平衡 - 不平衡变换器结构包括偶极结构,第一馈电点从 所述偶极结构和从所述第一寄生元件延伸的第二馈电点。

    Bar code scanner positioning
    8.
    发明授权
    Bar code scanner positioning 失效
    条码扫描仪定位

    公开(公告)号:US5825010A

    公开(公告)日:1998-10-20

    申请号:US342738

    申请日:1994-11-21

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10861 G06K7/10792

    摘要: A method of reading bar code symbols includes determining one or more parameters based upon the quantity and/or quality of the data which is being acquired, and providing the user with information concerning that parameter. The parameter may, for example, be the rate at which code words in the symbol are being read, and that information may be passed to the user by way of an LED which flashes at a rate which varies with the data acquisition rate. For a given bar code symbol being read, the rate of flashing varies with the position of the bar code reader with respect to the symbol. To improve the data acquisition rate, the user simply moves and/or rotates the bar code reader with respect to the symbol in a direction which causes the rate of flashing to increase. The invention extends to a bar code reader having means for providing an indication to a user of the relative suitability, for optimal reading of a symbol, of the current position of the reader.

    摘要翻译: 读取条形码符号的方法包括基于所获取的数据的数量和/或质量来确定一个或多个参数,以及向用户提供关于该参数的信息。 该参数可以是例如符号中的代码字被读取的速率,并且该信息可以通过以随数据获取速率而变化的速率闪烁的LED传递给用户。 对于正在读取的给定条形码符号,闪烁速率随着条形码读取器相对于符号的位置而变化。 为了提高数据采集速率,用户简单地使条形码读取器相对于符号沿着使闪烁速率增加的方向移动和/或旋转。 本发明扩展到条形码读取器,其具有用于向用户提供用于读取器的当前位置的相对适合性(用于符号的最佳读取)的指示的装置。

    Multi-frequency RFID apparatus and methods of reading RFID tags
    10.
    发明授权
    Multi-frequency RFID apparatus and methods of reading RFID tags 有权
    多频RFID设备和阅读RFID标签的方法

    公开(公告)号:US07423606B2

    公开(公告)日:2008-09-09

    申请号:US10957529

    申请日:2004-09-30

    IPC分类号: H01Q5/02 H04Q5/22

    摘要: A portable/handheld device is provided having a processing module configured to selectively operate a reading mode selected from a far-field mode and a near-field mode, and a directional antenna array coupled to the processing module. The directional antenna array includes a first antenna element configured to radiate electromagnetic (EM) radiation in a far-field, and a second antenna element coupled to the first antenna element. The second antenna element is configured to radiate EM radiation in a near-field. The second antenna element includes an antenna transducer configured to selectively cancel far-field EM radiation from the first antenna element. A method of reading inductively coupled radio frequency identification (RFID) tags is also provided having the steps of scanning at least one frequency band to detect a RFID tag, and selectively radiating one of a near-field electromagnetic (EM) field and a far-field EM field based on the detected RFID tag.

    摘要翻译: 提供了一种便携式/手持式装置,其具有被配置为选择性地操作从远场模式和近场模式选择的读取模式的处理模块以及耦合到处理模块的定向天线阵列。 定向天线阵列包括被配置为辐射远场中的电磁(EM)辐射的第一天线元件和耦合到第一天线元件的第二天线元件。 第二天线元件被配置为在近场辐射EM辐射。 第二天线元件包括被配置为选择性地抵消来自第一天线元件的远场EM辐射的天线换能器。 还提供了一种读取电感耦合射频识别(RFID)标签的方法,其具有扫描至少一个频带以检测RFID标签的步骤,并且选择性地辐射近场电磁场(EM)场和远场识别 基于检测到的RFID标签的场EM场。