Bar code reader for reading both one dimensional and two dimensional
symbologies with programmable resolution
    1.
    发明授权
    Bar code reader for reading both one dimensional and two dimensional symbologies with programmable resolution 失效
    用于读取可编程分辨率的一维和二维符号的条形码阅读器

    公开(公告)号:US5710417A

    公开(公告)日:1998-01-20

    申请号:US463317

    申请日:1995-06-02

    IPC分类号: G06K7/10

    摘要: A plurality of the areas of differing light reflectivity of a bar code symbol or the like are simultaneously illuminated using, for example, a beam of light that has an elongate cross-section. The light beam is swept over the symbol to be read in a direction transverse to the elongated dimension of the illuminated region so that a two-dimensional area of the symbol is illuminated over time. The reflected light is sensed by a 1D CCD array. A microprocessor within the scanner provides visual feedback to aid a user in aligning the device, and also provides for a selectable aspect ratio for the image, a selectable image resolution and size, a selectable aspect ratio of the illumination, and a selectable pixel size. All of these options may be programmed within the microprocessor, enabling the device to read a large variety of two-dimensional symbols.

    摘要翻译: 使用例如具有细长横截面的光束同时照射条形码符号等的不同光反射率的多个区域。 将光束扫过符号以沿与照明区域的细长尺寸横切的方向读取,使得符号的二维区域随时间被照亮。 反射光由1D CCD阵列感测。 扫描仪内的微处理器提供视觉反馈以帮助用户对齐设备,并且还为图像提供可选择的纵横比,可选择的图像分辨率和尺寸,照明的可选纵横比以及可选择的像素尺寸。 所有这些选项都可以在微处理器内进行编程,使设备能够读取大量的二维符号。

    Photodetector for use in reading optical information symbols
    5.
    发明授权
    Photodetector for use in reading optical information symbols 失效
    用于读取光学信息符号的光电检测器

    公开(公告)号:US5506392A

    公开(公告)日:1996-04-09

    申请号:US314519

    申请日:1994-09-28

    IPC分类号: G06K7/015 G06K7/10 G06K7/14

    摘要: A bar code reader capable of working over a wider range of working angle and for a wider range of bar code densities, using improved optics and sensing elements. The optics and sensing elements and/or the associated circuitry are arranged to provide two channels of data derived from the scanned bar code. The two channels have differing resolutions. Analysis of the data from the two channels provides a single decoded result. As the working angle and density vary at least one of the resolutions will be appropriate for sensing all or most of the bar coded data. The data from the channel producing a valid result can be used, or if neither channel produces a valid result by itself, data from each channel can be analyzed and valid portions of the data from both channels combined to produce the single decoded result. The different resolution of the two channels can be provided using different size photodetection areas, e.g., small and large groups of active areas on a sensor array.

    摘要翻译: 使用改进的光学元件和传感元件,能够在更宽范围的工作角度和更宽范围的条形码密度下工作的条形码阅读器。 光学和感测元件和/或相关联的电路被布置成提供从扫描的条形码导出的两个通道的数据。 两个通道具有不同的分辨率。 来自两个通道的数据的分析提供单个解码结果。 由于工作角和密度变化,分辨率中的至少一个将适合于感测所有或大部分条形码数据。 可以使用来自产生有效结果的信道的数据,或者如果两个信道本身都没有产生有效结果,则可以分析来自每个信道的数据,并且将来自两个信道的数据的有效部分组合以产生单个解码结果。 可以使用不同尺寸的光电检测区域(例如传感器阵列上的小和大的有效区域组)来提供两个通道的不同分辨率。

    Scan module for a bar code reader with a magnifying lens
    6.
    发明授权
    Scan module for a bar code reader with a magnifying lens 失效
    具有放大镜的条形码读取器的扫描模块

    公开(公告)号:US06879418B2

    公开(公告)日:2005-04-12

    申请号:US10616363

    申请日:2003-07-09

    IPC分类号: G06K7/10 G02B26/08

    CPC分类号: G06K7/10811 G06K7/10653

    摘要: A scan module for use in a bar code reader including a base, a light source, a focusing lens, a scan mirror mounted for oscillatory motion relative to the base so as to create a scanner laser beam, and a magnifying lens for magnifying the angle of reflection of a light beam from the light source off the scan mirror.

    摘要翻译: 一种用于条形码读取器的扫描模块,包括基座,光源,聚焦透镜,安装成相对于基座摆动的扫描镜,以便产生扫描仪激光束;以及放大镜,用于放大角度 反射来自光源的光束离开扫描镜。

    Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology
    7.
    发明授权
    Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology 失效
    使用电荷耦合器件和扫描激光束技术读取标记的装置和方法

    公开(公告)号:US06398112B1

    公开(公告)日:2002-06-04

    申请号:US09540404

    申请日:2000-03-31

    IPC分类号: G06K710

    摘要: A scanning device for reading indicia of differing light reflectivity, including bar code or matrix array symbols, has a single light emitter, such as a laser or light emitting diode, for generating a scanning light beam to visually illuminate sequential portions of the indicia. A sensor, such as a charge coupled or other solid state imaging device, simultaneously detects light reflected from portions of the indicia and generates an electrical signal representative of the spacial intensity variations the portions of the indicia. The scanning device may also include an ambient light sensor, and a second light emitter for use only in aiming or orienting the scanning device. A photodetector may also be provided to separately detect one symbol virtually simultaneous with the detection of another symbol by the sensor or to provide dual modalities. A method for reading indicia is also provided.

    摘要翻译: 用于读取不同光反射率的标记(包括条形码或矩阵阵列符号)的扫描装置具有用于产生扫描光束以目视照亮标记的顺序部分的单个光发射器,例如激光或发光二极管。 诸如电荷耦合或其它固态成像装置的传感器同时检测从标记的部分反射的光,并产生代表标记部分的空间强度变化的电信号。 扫描装置还可以包括环境光传感器和仅用于瞄准或定向扫描装置的第二光发射器。 还可以提供光电检测器以与传感器检测另一个符号同时检测一个符号,或提供双重方式。 还提供了读取标记的方法。

    Integrated scanner on a common substrate
    9.
    发明授权
    Integrated scanner on a common substrate 失效
    集成扫描仪在公共基板上

    公开(公告)号:US07225987B2

    公开(公告)日:2007-06-05

    申请号:US10918866

    申请日:2004-08-16

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10683 G06K7/10653

    摘要: An integrated scanner for scanning a barcode is formed on a common substrate. The scanner may include a micro-machined mirror, a laser diode, and a detector, mounted on a single substrate or several connected substrates. Lenses can be used to focus a laser beam from the laser diode as well as expand a laser beam deflected by the micro-machined mirror. The scanner may also scan a barcode without using a micro-machined mirror by rotating the laser diode.

    摘要翻译: 用于扫描条形码的集成扫描仪形成在公共基板上。 扫描器可以包括安装在单个基板或几个连接的基板上的微加工镜,激光二极管和检测器。 可以使用透镜来聚焦来自激光二极管的激光束,以及扩大由微加工镜反射的激光束。 扫描仪也可以通过旋转激光二极管来扫描条形码而不使用微加工镜。

    Apparatus and method for reading indicia using charge coupled device and
scanning laser beam technology
    10.
    发明授权
    Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology 失效
    使用电荷耦合器件和扫描激光束技术读取标记的装置和方法

    公开(公告)号:US5672858A

    公开(公告)日:1997-09-30

    申请号:US269170

    申请日:1994-06-30

    IPC分类号: G06K7/015 G06K7/10

    摘要: A scanning device for reading indicia of differing light reflectivity, including bar code or matrix array symbols, has a single light emitter, such as a laser or light emitting diode, for generating a scanning light beam to visually illuminate sequential portions of the indicia. A sensor, such as a charge coupled or other solid state imaging device, simultaneously detects light reflected from portions of the indicia and generates an electrical signal representative of the spacial intensity variations the portions of the indicia. The scanning device may also include an ambient light sensor, and a second light emitter for use only in aiming or orienting the scanning device. A photodetector may also be provided to separately detect one symbol virtually simultaneous with the detection of another symbol by the sensor or to provide dual modalities. A method for reading indicia is also provided.

    摘要翻译: 用于读取不同光反射率的标记(包括条形码或矩阵阵列符号)的扫描装置具有用于产生扫描光束以目视照亮标记的顺序部分的单个光发射器,例如激光或发光二极管。 诸如电荷耦合或其它固态成像装置的传感器同时检测从标记的部分反射的光,并产生代表标记部分的空间强度变化的电信号。 扫描装置还可以包括环境光传感器和仅用于瞄准或定向扫描装置的第二光发射器。 还可以提供光电检测器以与传感器检测另一个符号同时检测一个符号,或提供双重方式。 还提供了读取标记的方法。