RFID antenna system having reduced orientation sensitivity
    1.
    发明申请
    RFID antenna system having reduced orientation sensitivity 有权
    RFID天线系统具有降低的方向灵敏度

    公开(公告)号:US20070194929A1

    公开(公告)日:2007-08-23

    申请号:US11356887

    申请日:2006-02-17

    IPC分类号: G08B13/14

    摘要: Radio Frequency Identification (RFID) antennas systems and methods that are less sensitive to orientation. One example includes an interrogator having a radio frequency transceiver, a first linearly polarized antenna in electrical communication with the transceiver, and a second linearly polarized antenna in electrical communication with the transceiver, the second antenna having a polarization in a direction substantially perpendicular to the first antenna; a control circuit is in electrical communication with the transceiver and with the first and second antennas, the control circuit operable to switch between interrogating with the first antenna and interrogating with the second antenna, and an RFID decoder is coupled to an output of the transceiver to decode an interrogated electromagnetic signal from a tag.

    摘要翻译: 射频识别(RFID)天线系统和方法对方向不太敏感。 一个示例包括具有射频收发器的询问器,与收发器电连通的第一线性极化天线和与收发器电通信的第二线性极化天线,第二天线在基本上垂直于第一 天线; 控制电路与收发器电连通,并且与第一和第二天线电连通,控制电路可操作以在与第一天线进行询问之间切换并与第二天线进行询问,并且RFID解码器耦合到收发器的输出端 解码来自标签的询问电磁信号。

    Imaging system with a lens having increased light collection efficiency and a deblurring equalizer
    2.
    发明授权
    Imaging system with a lens having increased light collection efficiency and a deblurring equalizer 有权
    具有增加的光收集效率的透镜的成像系统和去模糊均衡器

    公开(公告)号:US07215493B2

    公开(公告)日:2007-05-08

    申请号:US11045213

    申请日:2005-01-27

    摘要: In one form, an imaging system comprises an imager that forms an image of an object in a field of view, a rotationally symmetric lens assembly disposed between the imager and the object, and an equalizer. The rotationally symmetric lens assembly provides increased collection efficiency for a given depth of field, whereby the rotationally symmetric lens assembly causes aberration, compared to a well-focused lens. The rotationally symmetric lens assembly comprises a front negative lens, a rear positive lens, and an aperture positioned between the front and rear lenses. The equalizer, which is connected to the imager, receives image data and at least partially compensates for the aberration caused by the rotationally symmetric lens assembly.

    摘要翻译: 在一种形式中,成像系统包括在视场中形成物体的图像的成像器,设置在成像器和物体之间的旋转对称透镜组件和均衡器。 旋转对称透镜组件为给定的景深提供增加的收集效率,由此与聚焦好的透镜相比,旋转对称透镜组件引起像差。 旋转对称透镜组件包括前负透镜,后正透镜和位于前后透镜之间的孔。 连接到成像器的均衡器接收图像数据,并且至少部分地补偿由旋转对称透镜组件引起的像差。

    Apparatus and method for saving power in RFID readers
    3.
    发明申请
    Apparatus and method for saving power in RFID readers 审中-公开
    RFID阅读器节电功能的设备和方法

    公开(公告)号:US20060267730A1

    公开(公告)日:2006-11-30

    申请号:US11139234

    申请日:2005-05-27

    IPC分类号: H04Q5/22

    摘要: An apparatus and method for controlling and/or reducing power consumption in an electronic tag reader (e.g. RFID). One preferred method includes the steps of configuring an automatic inventory command for excluding features; adjusting a search order for singulating RFID tags; activating a trigger control of the RFID reader for engaging power to begin reading the RFID tags; having the poll the RFID tags at a frequency for identifying said tags and hop to another frequency when the RFID tags are not located; the reader then terminating the reading after an interval when there are no new tags or when other criteria are met without the user deactivating the trigger control.

    摘要翻译: 一种用于控制和/或降低电子标签读取器(例如RFID)中的功率消耗的装置和方法。 一种优选方法包括配置用于排除特征的自动库存命令的步骤; 调整单独RFID标签的搜索顺序; 激活RFID读取器的触发控制以接合电力以开始读取RFID标签; 以标识所述标签的频率轮询RFID标签,并且当RFID标签不位于时跳转到另一频率; 读者然后在没有新标签的时间间隔之后终止读取,或者当用户停止触发控制时满足其他标准。

    Triggering illumination for a data reader
    5.
    发明申请
    Triggering illumination for a data reader 有权
    触发数据读取器的照明

    公开(公告)号:US20060180670A1

    公开(公告)日:2006-08-17

    申请号:US11293863

    申请日:2005-12-01

    IPC分类号: G06K7/10

    摘要: Methods are disclosed for triggering a source of visible light in connection with a data reader in response to a sensed proximity of an item. In one configuration, a data reader includes an imaging reader, such as a CMOS imager, that is sensitive to both infrared illumination and visible light. The imaging reader may be operable to read a symbol, such as a barcode or other optical code, via reflected infrared illumination, reflected visible light, or both. When characteristics of reflected illumination received by the imaging reader indicate the presence or movement of an item in the visible scan zone, the visible light source may be triggered to illuminate the item and thereby facilitate reading of the symbol using the same imaging reader as is used to sense the presence of the item. The visible light source may also be triggered to provide visual feedback.

    摘要翻译: 公开了用于响应于感测到的物品的接近度而触发与数据读取器相关联的可见光源的方法。 在一种配置中,数据读取器包括对红外照明和可见光都敏感的成像读取器,诸如CMOS成像器。 成像读取器可操作用于经由反射的红外照明,反射的可见光或二者来读取诸如条形码或其它光学代码的符号。 当成像读取器接收到的反射照明的特征指示物品在可见扫描区域中的存在或移动时,可触发可见光源以照亮该物品,从而便于使用与所使用的相同的成像读取器来读取符号 感知物品的存在。 也可以触发可见光源以提供视觉反馈。

    Data reader and methods for imaging targets subject to specular reflection
    6.
    发明申请
    Data reader and methods for imaging targets subject to specular reflection 有权
    用于成像目标的数据读取器和方法进行镜面反射

    公开(公告)号:US20060163355A1

    公开(公告)日:2006-07-27

    申请号:US11044825

    申请日:2005-01-26

    IPC分类号: G06K7/10

    摘要: A data reader such as for example an imaging reader with a CCD or CMOS imager or the like, having multiple images of a target item illuminated or acquired from different directions in which the image signals are combined into a complete image of the item or selected portions of the item being read such that specular reflection (over-saturated regions of the sensor array) are minimized or eliminated. In one example data reader configuration, multiple illumination sources such as first and second rows of light emitting diodes (LED's) are aimed at the item being scanned from different directions. The illumination sources are alternately pulsed and return signals are collected at one or more sensor arrays. A selected non-saturated return signal from one of the illumination sources, or selected non-saturated portions of return signal from both of the illumination sources are processed to generate a complete non-saturated image of the target. In one preferred processing scheme, assuming that each of the LED's is capable of illuminating the entire target (e.g. a barcode), a pixel-by-pixel minimum is taken of the two images thereby producing an image with specular reflection minimized or nearly eliminated.

    摘要翻译: 数据读取器,例如具有CCD或CMOS成像器等的成像读取器,具有从不同方向照明或获取的目标物品的多个图像,其中将图像信号组合成该物品的完整图像或所选部分 被读取的物品使得镜面反射(传感器阵列的过饱和区域)被最小化或消除。 在一个示例性数据读取器配置中,诸如第一和第二排发光二极管(LED)的多个照明源针对从不同方向进行扫描的物品。 照明源是交替脉冲的,并且在一个或多个传感器阵列处收集返回信号。 来自一个照明源的选择的非饱和返回信号或来自两个照明源的选择的非饱和部分的返回信号被处理以产生目标的完整的非饱和图像。 在一个优选的处理方案中,假设每个LED能够照射整个目标(例如条形码),则对两个图像进行逐像素最小化,从而产生最小化或几乎消除了镜面反射的图像。

    Multiple plane scanning system for data reading applications
    7.
    发明申请
    Multiple plane scanning system for data reading applications 失效
    用于数据读取应用的多平面扫描系统

    公开(公告)号:US20060124745A1

    公开(公告)日:2006-06-15

    申请号:US11341071

    申请日:2006-01-27

    IPC分类号: G06K7/10

    摘要: An optical system and method for data reading. A preferred system is directed to a scanner which includes a laser diode and a beam splitter for generating first optical beam and a second optical beam, the first optical beam being directed toward one side of a scanning optical element such as a rotating polygon mirror and to a first mirror array, the second optical beam being simultaneously directed toward a second optical element such as another side of the rotating polygon mirror and then to a second and a third mirror array. The first mirror array is configured to generate a scan pattern through a vertical window and the second and third mirror arrays are configured to generate scan patterns passing through a horizontal window. In combination, the three mirror arrays generate three sets of scan lines so as to scan five sides of a six-sided item (e.g., the bottom and all lateral sides of an object) being passed through the scan volume.

    摘要翻译: 一种用于数据读取的光学系统和方法。 优选的系统涉及一种扫描器,其包括激光二极管和用于产生第一光束的分束器和第二光束,第一光束被引向扫描光学元件的一侧,例如旋转多面镜,并且 第一反射镜阵列,第二光束同时指向第二光学元件,例如旋转多面镜的另一侧,然后到第二和第三反射镜阵列。 第一镜阵列被配置为通过垂直窗口生成扫描图案,并且第二和第三反射镜阵列被配置为生成穿过水平窗口的扫描图案。 组合在一起,三个反射镜阵列产生三组扫描线,以扫描通过扫描体积的六面物体(例如,物体的底部和所有侧面)的五边。

    System and method of optical reading employing virtual scan lines
    8.
    发明申请
    System and method of optical reading employing virtual scan lines 有权
    采用虚拟扫描线的光学读取系统和方法

    公开(公告)号:US20060081712A1

    公开(公告)日:2006-04-20

    申请号:US11252997

    申请日:2005-10-17

    IPC分类号: G06K7/10

    摘要: Optical reading system and methods having multiple modes of operation, for example: (1) omnidirectional and single-code picking; (2) fixed and handheld reading; (3) 1D and 2D code reading. In one configuration, an image-based system obtains input data via an area sensor such as a two dimensional CCD array with only a select portion of the data corresponding to a selected pattern of virtual scan lines being stored and processed. The system may permit a user to implement different operating modes such as a first mode of reading optical codes in any location or orientation and a second mode of reading only an optical code oriented along a particular virtual scan line or group of lines, for example lines intersecting an aiming pattern or a band of parallel virtual scan lines. In another configuration, the data reader has multiple operating modes such as operable to switch between operating in a handheld mode selecting a first pattern of virtual scan lines to process and/or decode and a fixed mode selecting a second pattern of virtual scan lines to process and/or decode. Virtual scan patterns in either mode can change from frame to frame in a predetermined sequence, or in response to decodable data, to improve scanning performance.

    摘要翻译: 具有多种操作模式的光学读取系统和方法,例如:(1)全向和单代码拾取; (2)固定和手持阅读; (3)1D和2D代码读取。 在一种配置中,基于图像的系统经由诸如二维CCD阵列的区域传感器获得输入数据,只有与所选择的虚拟扫描线的图案对应的数据的选择部分被存储和处理。 该系统可以允许用户实现不同的操作模式,例如在任何位置或方向上读取光学代码的第一模式,以及仅读取沿着特定虚拟扫描线或一组线路定向的光学代码的第二模式,例如线 与瞄准图案或平行虚拟扫描线的带相交。 在另一种配置中,数据读取器具有多种操作模式,例如可操作以在以手持模式操作之间切换,以选择第一模式的虚拟扫描线来处理和/或解码,以及固定模式选择第二模式的虚拟扫描线以进行处理 和/或解码。 任何一种模式的虚拟扫描模式都可以按照预定的顺序从帧到帧改变,或响应于可解码的数据而改变扫描性能。

    Multiple plane scanning system for data reading applications
    9.
    发明授权
    Multiple plane scanning system for data reading applications 失效
    用于数据读取应用的多平面扫描系统

    公开(公告)号:US06974084B2

    公开(公告)日:2005-12-13

    申请号:US10431070

    申请日:2003-05-06

    IPC分类号: G06K7/10

    摘要: An optical system and method for data reading. The preferred system is directed to a scanner which includes a laser diode and a beam splitter for generating first optical beam and a second optical beam, the first optical beam being directed toward one side of a scanning optical element such as a rotating polygon mirror and to a first mirror array, the second optical beam is being simultaneously directed toward a second optical element such as another side of the rotating polygon mirror and then to a second and a third mirror array. The first mirror array is configured to generate a scan pattern through a vertical window and the second and third mirror arrays are configured to generate scan patterns passing through a horizontal window. In combination, the three mirror arrays generate three sets of scan lines so as to scan the bottom and all lateral sides of an object being passed through the scan volume.

    摘要翻译: 一种用于数据读取的光学系统和方法。 优选的系统涉及一种扫描仪,其包括激光二极管和用于产生第一光束的分束器和第二光束,第一光束被引向诸如旋转多面镜的扫描光学元件的一侧,并且 第一反射镜阵列,第二光束被同时指向第二光学元件,例如旋转多面镜的另一侧,然后到第二和第三反射镜阵列。 第一镜阵列被配置为通过垂直窗口生成扫描图案,并且第二和第三反射镜阵列被配置为生成穿过水平窗口的扫描图案。 组合在一起,三个反射镜阵列产生三组扫描线,以扫描正在通过扫描体积的物体的底部和所有侧面。

    Multiple plane scanning system for data reading applications
    10.
    发明申请
    Multiple plane scanning system for data reading applications 失效
    用于数据读取应用的多平面扫描系统

    公开(公告)号:US20040217175A1

    公开(公告)日:2004-11-04

    申请号:US10858909

    申请日:2004-06-01

    IPC分类号: G06K007/10 G02B026/12

    摘要: An optical system and method for data reading. The preferred system is directed to a scanner which includes a laser diode and a beam splitter for generating first optical beam and a second optical beam, the first optical beam being directed toward one side of a scanning optical element such as a rotating polygon mirror and to a first mirror array, the second optical beam is being simultaneously directed toward a second optical element such as another side of the rotating polygon mirror and then to a second and a third mirror array. The first mirror array is configured to generate a scan pattern through a vertical window and the second and third mirror arrays are configured to generate scan patterns passing through a horizontal window. In combination, the three mirror arrays generate three sets of scan lines so as to scan the bottom and all lateral sides of an object being passed through the scan volume.

    摘要翻译: 一种用于数据读取的光学系统和方法。 优选的系统涉及一种扫描仪,其包括激光二极管和用于产生第一光束的分束器和第二光束,第一光束被引向诸如旋转多面镜的扫描光学元件的一侧,并且 第一反射镜阵列,第二光束被同时指向第二光学元件,例如旋转多面镜的另一侧,然后到第二和第三反射镜阵列。 第一镜阵列被配置为通过垂直窗口生成扫描图案,并且第二和第三反射镜阵列被配置为生成穿过水平窗口的扫描图案。 组合在一起,三个反射镜阵列产生三组扫描线,以扫描正在通过扫描体积的物体的底部和所有侧面。