Method and Apparatus for Compensating for Fixed Pattern Noise in an Imaging System
    51.
    发明申请
    Method and Apparatus for Compensating for Fixed Pattern Noise in an Imaging System 有权
    用于补偿成像系统中固定模式噪声的方法和装置

    公开(公告)号:US20100289919A1

    公开(公告)日:2010-11-18

    申请号:US12781595

    申请日:2010-05-17

    IPC分类号: H04N9/73

    摘要: The invention relates to a method and apparatus for configuring an imaging system to compensate for fixed pattern noise, variations in pixel values captured from an image sensor that vary according to a fixed pattern. In a method for configuring an imaging system for compensating an additive term component of fixed pattern noise, a pixel array is exposed to a scene of known radiance and an average white value is determined for each pixel of an array. Each average white value is compared to a predetermined reference value to determine a correction value for each pixel. In a method for configuring an imaging system for compensating both an additive and multiplicative component of fixed pattern noise, a pixel array is exposed to a first scene having a first known radiance, and frames of the scene are captured, and then the array is exposed to a second scene having a second known radiance and frames of the second scene are captured. After first and second average white values are determined for each pixel additive and multiplicative term correction values for each pixel are then determined by solving for a system of equations relating the first and second average white values and first and second scene radiances. Correction values can be utilized to correct pixel values of a frame of image data, and a decoding algorithm for attempting to decode a frame of image data including corrected pixel values can be activated.

    摘要翻译: 本发明涉及一种用于配置成像系统以补偿固定图案噪声,根据固定图案变化的从图像传感器捕获的像素值的变化的方法和装置。 在用于配置用于补偿固定图案噪声的加法项分量的成像系统的方法中,将像素阵列暴露于已知辐射的场景,并且针对阵列的每个像素确定平均白色值。 将每个平均白色值与预定的参考值进行比较,以确定每个像素的校正值。 在用于配置用于补偿固定图案噪声的附加和乘法分量的成像系统的方法中,像素阵列暴露于具有第一已知辐射的第一场景,并且捕获场景的帧,然后阵列被曝光 到具有第二已知辐射的第二场景,并且捕获第二场景的帧。 在针对每个像素加法确定第一和第二平均白色值之后,然后通过求解与第一和第二平均白色值以及第一和第二场景辐射相关联的方程组来确定每个像素的乘法项校正值。 校正值可用于校正图像数据帧的像素值,并且可以激活用于尝试解码包括校正像素值的图像数据的帧的解码算法。

    LASER SCANNER WITH DEFORMABLE LENS
    52.
    发明申请
    LASER SCANNER WITH DEFORMABLE LENS 有权
    激光扫描器与可变镜头

    公开(公告)号:US20100276493A1

    公开(公告)日:2010-11-04

    申请号:US12432517

    申请日:2009-04-29

    IPC分类号: G06K7/10 G02B3/12

    摘要: A scanning apparatus comprises a laser source adapted to emit a beam along an axis and illuminate a target, a detector adapted to receive light of varying intensities scattered from the target and convert the light into a signal, and a controller operatively associated with the detector for receiving the signal from the detector and decoding the signal. A focusing apparatus comprising a deformable lens element in optical communication with the laser source has a deformable surface, at least part of which transmits the beam. The deformable lens element defines an index of refraction difference with an index of refraction of an adjacently disposed substance. In one embodiment the index of refraction difference is greater than 0.30.

    摘要翻译: 扫描装置包括适于沿轴线发射光束并照射目标的激光源,适于接收从目标散射的变化的强度的光并将光转换为信号的检测器,以及与检测器可操作地相关联的控制器 从检测器接收信号并对信号进行解码。 包括与激光源光学连通的可变形透镜元件的聚焦装置具有可变形表面,其至少一部分透射该光束。 可变形透镜元件定义相邻布置物质的折射率与折射率的折射率差异。 在一个实施例中,折射率差大于0.30。

    FLUID LENS ELEMENT FOR USE IN CHANGING THERMAL OPERATING ENVIRONMENT
    53.
    发明申请
    FLUID LENS ELEMENT FOR USE IN CHANGING THERMAL OPERATING ENVIRONMENT 有权
    流体透镜元件用于更换热作业环境

    公开(公告)号:US20100276491A1

    公开(公告)日:2010-11-04

    申请号:US12432434

    申请日:2009-04-29

    IPC分类号: G06K7/10 G02B3/12

    CPC分类号: G02B3/12 G02B7/028

    摘要: There is provided a lens element configured so that optical characteristics thereof remain substantially stable over a range of operating temperatures. In one embodiment, a fluid lens element can be provided that includes a membrane having a formation formed thereon for accommodating changes in characteristics of the lens element attributable to changes in temperature so that an amount of perturbations in the lens element which would otherwise be exhibited with thermal expansion of the membrane are minimized

    摘要翻译: 提供了一种透镜元件,其被配置成使得其光学特性在工作温度范围内保持基本稳定。 在一个实施例中,可以提供一种流体透镜元件,该透镜元件包括其上形成有形成在其上的形成的膜,以容纳由于温度变化引起的透镜元件的特性变化,使得透镜元件中的扰动量否则将以 膜的热膨胀最小化

    WIRELESS MESH POINT PORTABLE DATA TERMINAL
    55.
    发明申请
    WIRELESS MESH POINT PORTABLE DATA TERMINAL 有权
    无线网点便携式数据终端

    公开(公告)号:US20080294766A1

    公开(公告)日:2008-11-27

    申请号:US12125621

    申请日:2008-05-22

    IPC分类号: G06F15/173 G06F1/28

    摘要: A portable data terminal (PDT) adapted to participate in a wireless mesh network including a plurality of peer PDTs can comprise: a PDT module including an encoded information reading (EIR) device, and a mesh point (MP) module communicatively coupled to the PDT module. The MP module can include a microcontroller and at least one wireless communication interface and can be configured to perform IEEE 802.11-conformant wireless station services including authentication, de-authentication, privacy, and MAC service data unit delivery, and IEEE 802.11-conformant wireless distribution system services including association, disassociation, distribution, integration, and re-association. The MP module can be further configured, responsive to receiving a MAC frame addressed to a recipient inside the wireless mesh network, to deliver the MAC frame using the distribution service. The MP module can be further configured, responsive to receiving a MAC frame addressed to a recipient outside of the wireless mesh network, to deliver the MAC frame using the integration service. The MP module can be further configured to route an incoming MAC frame according to its destination address and the frame control field. The MP module can be further configured to cause the PDT module to exit said sleeping state responsive to receiving a mobile management software (MMS) wake-up command.

    摘要翻译: 适于参与包括多个对等PDT的无线网状网络的便携式数据终端(PDT)可以包括:PDT模块,包括编码信息读取(EIR)设备和通信地耦合到PDT的网格点(MP)模块 模块。 MP模块可以包括微控制器和至少一个无线通信接口,并且可以被配置为执行包括认证,去认证,隐私和MAC服务数据单元递送的符合IEEE 802.11的无线站服务,以及符合IEEE 802.11的无线分布 系统服务包括关联,关联,分发,集成和重新关联。 响应于接收到无线网状网络内的接收者的MAC帧,可以进一步配置MP模块,以使用分发服务传送MAC帧。 响应于接收到无线网状网络之外的接收者的MAC帧,可以进一步配置MP模块,以使用集成服务传送MAC帧。 MP模块还可以被配置为根据其目的地址和帧控制字段来路由入局MAC帧。 MP模块还可以被配置为响应于接收到移动管理软件(MMS)唤醒命令,使PDT模块退出所述休眠状态。

    APPARATUS AND METHODS FOR TRACKING MOVEMENT OF PERSONS
    56.
    发明申请
    APPARATUS AND METHODS FOR TRACKING MOVEMENT OF PERSONS 有权
    跟踪人员移动的装置和方法

    公开(公告)号:US20080133127A1

    公开(公告)日:2008-06-05

    申请号:US11565881

    申请日:2006-12-01

    申请人: William H. Havens

    发明人: William H. Havens

    IPC分类号: G01C21/00

    摘要: A system and method for tracking movements of an object of interest using an contact or contactless tag, having a writable memory. A plurality of scanners are dispersed throughout an environment in which movement of the object is to be tracked, wherein when a scanner detects the tag an entry is added to the tag. The entry can include a variety of data including, for example, the location entry indicating a time the tag was detected and a location of the detection. The system and method are particularly but not exclusively, suited for use with airline travel.

    摘要翻译: 一种用于使用具有可写入存储器的联系人或非接触式标签跟踪感兴趣对象的移动的系统和方法。 多个扫描仪分散在要跟踪对象的移动的环境中,其中当扫描仪检测到标签时,将条目添加到标签。 该条目可以包括各种数据,包括例如指示检测到标签的时间的位置条目和检测的位置。 该系统和方法特别但不排他地适用于航空公司旅行。

    Identification card reader
    57.
    发明授权
    Identification card reader 有权
    身份证读卡器

    公开(公告)号:US07382911B1

    公开(公告)日:2008-06-03

    申请号:US09788179

    申请日:2001-02-16

    IPC分类号: G06K9/00

    CPC分类号: G06K7/14 G06K7/10851

    摘要: There is described a method and apparatus for processing a card. A card that is processed can have a corresponding card holder. In one embodiment, a card reader can be provided for reading information of a card. A card reader in one embodiment can be configured to sense a level of degradation of a card. A card reader in one embodiment can be in communication with a remote processor system.

    摘要翻译: 描述了用于处理卡的方法和装置。 处理的卡可以具有相应的卡座。 在一个实施例中,可以提供读卡器来读取卡的信息。 一个实施例中的读卡器可以被配置为感测卡的劣化程度。 一个实施例中的读卡器可以与远程处理器系统通信。

    Method and apparatus for compensating for fixed pattern noise in an imaging system
    58.
    发明授权
    Method and apparatus for compensating for fixed pattern noise in an imaging system 失效
    用于补偿成像系统中固定模式噪声的方法和装置

    公开(公告)号:US07304670B1

    公开(公告)日:2007-12-04

    申请号:US08828340

    申请日:1997-03-28

    IPC分类号: H04N5/217 G06K7/10

    摘要: There is described a pixel value adjustment method and apparatus. In one embodiment, pixel values can be adjusted by execution of an algorithm for adjusting pixel values. In one embodiment, an apparatus capable of executing an algorithm for adjusting pixel values is capable of operating in a decoding operating application. In one embodiment, an apparatus capable of executing an algorithm for adjusting pixel values is capable of operating in a video display operating application.

    摘要翻译: 描述了像素值调整方法和装置。 在一个实施例中,可以通过执行用于调整像素值的算法来调整像素值。 在一个实施例中,能够执行用于调整像素值的算法的装置能够在解码操作应用中操作。 在一个实施例中,能够执行用于调整像素值的算法的装置能够在视频显示操作应用中操作。

    Intimate source and detector and apparatus employing same
    59.
    发明授权
    Intimate source and detector and apparatus employing same 失效
    密集的源和检测器和采用它的设备

    公开(公告)号:US5430286A

    公开(公告)日:1995-07-04

    申请号:US202669

    申请日:1994-02-25

    IPC分类号: G06K7/10 G06T1/00

    CPC分类号: G06K7/10702 G06K7/10594

    摘要: There is provided a system of detecting mark-sense indicia wherein the images of a light source and the region of sensitivity of a light sensor are substantially coaxial, coplanar, and coextensive throughout the working depth of field. This system is insensitive to the laminate and the diffusion effects. A light source is aimed at a beam splitter that diverts a portion of the light beam through optics that focus the light on a reflective target containing a bar code symbol to be scanned. The reflected beam is returned through the optics and the beam splitter, and a portion of the reflected beam is conducted to a light sensor. In this manner, the light path from the detector to the optical sensor is split twice by the beam splitter. The optics are configured so that the light beams that define the field of illumination and the region of sensitivity and which pass between the optics and the target are congruent, having identical optical axes and angles of divergence.

    摘要翻译: 提供了一种检测标记检测标记的系统,其中光源的图像和光传感器的灵敏度区域在整个工作景深范围内基本上同轴,共面和共延伸。 该系统对层压板和扩散效应不敏感。 光源瞄准分束器,其将一部分光束通过将聚焦在包含待扫描的条形码符号的反射目标上的光的光学器件转向。 反射光束通过光学器件和分束器返回,并且一部分反射光束被传导到光传感器。 以这种方式,从分束器将从检测器到光学传感器的光路分开两次。 光学器件被配置为使得限定照明场和灵敏度区域并且在光学器件和靶之间通过的光束是一致的,具有相同的光轴和发散角。

    Reduced power scanner for reading indicia
    60.
    发明授权
    Reduced power scanner for reading indicia 失效
    用于阅读标记的减少功率扫描仪

    公开(公告)号:US5308962A

    公开(公告)日:1994-05-03

    申请号:US99246

    申请日:1993-07-28

    IPC分类号: G06K7/10 G06K7/04

    CPC分类号: G06K7/10851 G06K2207/1018

    摘要: A scanner is provided for reading a target containing indicia, such as bar codes, which includes a means for directing the a light source so that it illuminates a target, a photodetector that generates an electrical signal indicative of the intensity of the detected light, a means for decoding the electrical signal to identify the presence of a target containing a region of relatively high reflectivity, and a means for modifying the level of illumination of the light source either from low to high upon recognition of said region of relatively high reflectivity or from high to low when some predetermined condition, such as the end of the indicia scan, or the passage of a time period without reading indicia, is met.

    摘要翻译: 提供了一种用于读取包含标记的目标的扫描仪,诸如条形码,其包括用于引导光源以使其照亮目标的装置,产生指示检测到的光的强度的电信号的光电检测器, 用于对电信号进行解码以识别包含相对较高反射率的区域的目标的装置,以及用于在识别所述相对较高反射率区域时从低到高修改光源的照明水平的装置,或从 当满足某些预定条件(例如标记扫描的结束)或没有读取标记的时间段的通过时,从高到低。